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Σπυρίδων Σιούτας

Τμήμα Μηχανικών Η/Υ και Πληροφορικής, Πανεπιστήμιο Πατρών

ΟΝΟΜΑΤΕΠΩΝΥΜΟ: Σπυρίδων Σιούτας

ΒΑΘΜΙΔΑ: Καθηγητής
Τμήμα: Μηχανικών Η/Υ και Πληροφορικής, Πολυτεχνική Σχολή, Πανεπιστήμιο Πατρών
Email: sioutas@ceid.upatras.gr
Google Scholar: https://scholar.google.com/citations?user=F9-WPBoAAAAJ&hl=en

Σπουδές

  • Διπλωματούχος του Τμήματος Μηχανικών Η/Υ & Πληροφορικής του Παν/μίου Πατρών από το Δεκέμβριο του 1997.
  • Κάτοχος Master ( Μεταπτυχιακό Δίπλωμα  Ειδίκευσης) από τον  Ιούνιο του 2000.
  • Διδάκτωρ του Τμήματος Μηχανικών Η/Υ & Πληροφορικής από τον Σεπτέμβριο του 2002.  S. Sioutas, Αποτελεσματικοί αλγόριθμοι και βελτιωμένες τεχνικές αναζήτησης χωρικής, χρονικής και χώρο-χρονικής πληροφορίας, phd thesis, University of Patras, Greece, 2002. [Online]. Available: http://hdl.handle.net/10442/hedi/14364

 

Επιστημονικά Ενδιαφέροντα

  • Συστήματα Λογισμικού για Διαχείριση Δεδομένων Μεγάλου όγκου
  • Δομές και Βάσεις Δεδομένων
  • Αλγόριθμοι Διαχείρισης Δεδομένων Μεγάλου όγκου
  • Μηχανική Μάθηση Μεγάλης Κλίμακας
  • Μηχανική Δεδομένων στο Υπολογιστικό Νέφος
  • Αποκεντρωμένα Συστήματα Λογισμικού – Κατανεμημένα Ευρετήρια και Διαχείριση Δεδομένων σε Ομότιμα (Peer-to-Peer) Δίκτυα Υπολογιστών και σε Υποδομές Υπολογιστικού Νέφους (Cloud Computing)
  • Κατανεμημένος και Παράλληλος Προγραμματισμός (map-reduce programming)
  • Πολυδιάστατες Δομές Δεδομένων, Υπολογιστική Γεωμετρία && Γεωγραφικά Πληροφοριακά Συστήματα
  • Τεχνολογίες Διαδικτύου και  Πολυμέσων για Εκπαιδευτικό Λογισμικό

Επιστημονικές Δημοσιεύσεις σε Διεθνή Περιοδικά

Konstantinos C. Giotopoulos, Dimitrios Michalopoulos, Gerasimos Vonitsanos, Dimitris Papadopoulos, Ioanna Giannoukou, Spyros Sioutas: Dynamic Workload Management System in the Public Sector: A Comparative Analysis. Future Internet 17(3): 119 (2025)

  1. Vlachou, A. Karras, C. N. Karras, L. Theodorakopoulos, C. Halkiopoulos, and S. Sioutas, “Distributed Bayesian Inference for Large-Scale IoT Systems,” Big Data Cogn. Comput., vol. 8, no. 1, p. 1, 2024, doi: 10.3390/BDCC8010001.
  2. Karras et al., “TinyML Algorithms for Big Data Management in Large-Scale IoT Systems,” Future Internet, vol. 16, no. 2, p. 42, 2024, doi: 10.3390/FI16020042.
  3. C. Giotopoulos, D. Michalopoulos, G. Vonitsanos, D. Papadopoulos, I. Giannoukou, and S. Sioutas, “Dynamic Workload Management System in the Public Sector,” Inf., vol. 15, no. 6, p. 335, 2024, doi: 10.3390/INFO15060335.
  4. Gatou, X. Tsiara, A. Spitalas, S. Sioutas, and G. Vonitsanos, “Artificial Intelligence Techniques in Grapevine Research: A Comparative Study with an Extensive Review of Datasets, Diseases, and Techniques Evaluation,” Sensors, vol. 24, no. 19, p. 6211, 2024, doi: 10.3390/S24196211.
  5. C. Giotopoulos, D. Michalopoulos, A. Karras, C. N. Karras, and S. Sioutas, “Modelling and Analysis of Neuro Fuzzy Employee Ranking System in the Public Sector,” Algorithms, vol. 16, no. 3, p. 151, 2023, doi: 10.3390/A16030151.
  6. N. Karras, A. Karras, K. C. Giotopoulos, M. Avlonitis, and S. Sioutas, “Consensus Big Data Clustering for Bayesian Mixture Models,” Algorithms, vol. 16, no. 5, p. 245, 2023, doi: 10.3390/A16050245.
  7. Karras, C. N. Karras, N. Schizas, M. Avlonitis, and S. Sioutas, “AutoML with Bayesian Optimizations for Big Data Management,” Inf., vol. 14, no. 4, p. 223, 2023, doi: 10.3390/INFO14040223.
  8. Karras, C. N. Karras, K. C. Giotopoulos, D. Tsolis, K. Oikonomou, and S. Sioutas, “Federated Edge Intelligence and Edge Caching Mechanisms,” Inf., vol. 14, no. 7, p. 414, 2023, doi: 10.3390/INFO14070414.
  9. Vlachou, C. N. Karras, A. Karras, D. Tsolis, and S. Sioutas, “EVCA Classifier: A MCMC-Based Classifier for Analyzing High-Dimensional Big Data,” Inf., vol. 14, no. 8, p. 451, 2023, doi: 10.3390/INFO14080451.
  10. Karras et al., “An Integrated GIS-Based Reinforcement Learning Approach for Efficient Prediction of Disease Transmission in Aquaculture,” Inf., vol. 14, no. 11, p. 583, 2023, doi: 10.3390/INFO14110583.

C.-P. Balatsouras, A. Karras, C. N. Karras, I. Karydis, and S. Sioutas, “WiCHORD+: A Scalable, Sustainable, and P2P Chord-Based Ecosystem for Smart Agriculture Applications,” Sensors, vol. 23, no. 23, p. 9486, 2023, doi: 10.3390/S23239486.

  1. Sioutas, E. Sourla, K. Tsichlas, G. Vonitsanos, and C. D. Zaroliagis, “A Dynamic Distributed Deterministic Load-Balancer for Decentralized Hierarchical Infrastructures,” Algorithms, vol. 15, no. 3, p. 96, 2022, doi: 10.3390/A15030096.
  2. Chbeir, Y. Manolopoulos, J. Mizera-Pietraszko, and S. Sioutas, “Special Issue on Real-Time Intelligent Systems,” Big Data Res., vol. 30, p. 100349, 2022, doi: 10.1016/J.BDR.2022.100349.
  3. Schizas, A. Karras, C. N. Karras, and S. Sioutas, “TinyML for Ultra-Low Power AI and Large Scale IoT Deployments: A Systematic Review,” Future Internet, vol. 14, no. 12, p. 363, 2022, doi: 10.3390/FI14120363.
  4. Drakopoulos, I. Giannoukou, P. Mylonas, and S. Sioutas, “Self organizing maps for cultural content delivery,” Neural Comput. Appl., vol. 34, no. 22, pp. 19547–19564, 2022, doi: 10.1007/S00521-022-07376-1.
  5. N. Karras, A. Karras, and S. Sioutas, “Pattern Recognition and Event Detection on IoT Data-streams,” CoRR, vol. abs/2203.01114, 2022, doi: 10.48550/ARXIV.2203.01114.
  6. Koutroumpina, S. Sioutas, S. Koutroubinas, and K. Tsichlas, “Evaluation of Features Generated by a High-End Low-Cost Electrical Smart Meter,” Algorithms, vol. 14, no. 11, p. 311, 2021, doi: 10.3390/A14110311.
  7. Drakopoulos, A. Kanavos, P. Mylonas, and S. Sioutas, “Discovering sentiment potential in Twitter conversations with Hilbert-Huang spectrum,” Evol. Syst., vol. 12, no. 1, pp. 3–17, 2021, doi: 10.1007/S12530-020-09348-Z.
  8. Dritsas, A. Kanavos, M. Trigka, G. Vonitsanos, S. Sioutas, and A. K. Tsakalidis, “Trajectory Clustering and k-NN for Robust Privacy Preserving k-NN Query Processing in GeoSpark,” Algorithms, vol. 13, no. 8, p. 182, 2020, doi: 10.3390/A13080182.
  9. C. Kaporis, C. Makris, S. Sioutas, A. K. Tsakalidis, K. Tsichlas, and C. D. Zaroliagis, “Dynamic Interpolation Search revisited,” Inf. Comput., vol. 270, 2020, doi: 10.1016/J.IC.2019.104465.
  10. Karydis, A. Kanavos, S. Sioutas, M. Avlonitis, and N. I. Karacapilidis, “Multimedia Content’s Brokerage: An Information System Based on LeSiM,” Int. J. E Serv. Mob. Appl., vol. 12, no. 2, pp. 40–58, 2020, doi: 10.4018/IJESMA.2020040103.
  11. Doka, A. Kosmatopoulos, A. Papadopoulos, S. Sioutas, K. Tsichlas, and D. Tsoumakos, “Dynamic planar range skyline queries in log logarithmic expected time,” Inf. Process. Lett., vol. 162, p. 105990, 2020, doi: 10.1016/J.IPL.2020.105990.
  12. S. Brodal, S. Sioutas, K. Tsakalidis, and K. Tsichlas, “Fully persistent B-trees,” Theor. Comput. Sci., vol. 841, pp. 10–26, 2020, doi: 10.1016/J.TCS.2020.06.027.
  13. Dritsas, A. Kanavos, M. Trigka, S. Sioutas, and A. K. Tsakalidis, “Storage Efficient Trajectory Clustering and k-NN for Robust Privacy Preserving Spatio-Temporal Databases,” Algorithms, vol. 12, no. 12, p. 266, 2019, doi: 10.3390/A12120266.
  14. Moutafis, G. Mavrommatis, M. Vassilakopoulos, and S. Sioutas, “Efficient processing of all-k-nearest-neighbor queries in the MapReduce programming framework,” Data Knowl. Eng., vol. 121, pp. 42–70, 2019, doi: 10.1016/J.DATAK.2019.04.003.
  15. Rapti, K. Tsichlas, S. Sioutas, and G. Tzimas, “Virus propagation: threshold conditions for multiple profile networks,” Knowl. Inf. Syst., vol. 60, no. 2, pp. 807–836, 2019, doi: 10.1007/S10115-018-1274-Y.
  16. Rapti, K. Tsichlas, S. Sioutas, and G. Tzimas, “Correction to: Virus propagation: threshold conditions for multiple profile networks,” Knowl. Inf. Syst., vol. 60, no. 2, pp. 1163–1164, 2019, doi: 10.1007/S10115-018-1277-8.
  17. Gkantouna, S. Sioutas, and G. Tzimas, “Efficient mining of design patterns for advanced modeling and optimization of content management system-based web applications,” ACM SIGWEB Newsl., vol. 2019, no. Autumn, p. 2:1-2:4, 2019, doi: 10.1145/3352683.3352685.
  18. Papalitsas, P. Karakostas, T. Andronikos, S. Sioutas, and K. Giannakis, “Combinatorial GVNS (General Variable Neighborhood Search) Optimization for Dynamic Garbage Collection,” Algorithms, vol. 11, no. 4, p. 38, 2018, doi: 10.3390/A11040038.
  19. Savvopoulos, A. Kanavos, P. Mylonas, and S. Sioutas, “LSTM Accelerator for Convolutional Object Identification,” Algorithms, vol. 11, no. 10, p. 157, 2018, doi: 10.3390/A11100157.
  20. Dritsas, M. Trigka, P. Gerolymatos, and S. Sioutas, “Trajectory Clustering and k-NN for Robust Privacy Preserving Spatiotemporal Databases,” Algorithms, vol. 11, no. 12, p. 207, 2018, doi: 10.3390/A11120207.
  21. Kanavos, S. A. Iakovou, S. Sioutas, and V. Tampakas, “Large Scale Product Recommendation of Supermarket Ware Based on Customer Behaviour Analysis,” Big Data Cogn. Comput., vol. 2, no. 2, p. 11, 2018, doi: 10.3390/BDCC2020011.
  22. Sioutas, Y. Velegrakis, and V. Kordoni, “Introduction to the special section on New Trends in Humanistic Informatics: Implementations and Applications,” Comput. Electr. Eng., vol. 65, pp. 425–427, 2018, doi: 10.1016/J.COMPELECENG.2018.01.008.
  23. Sioutas, Y. Velegrakis, and V. Kordoni, “Introduction to the special section on New Trends in Humanistic Informatics: Implementations and Applications,” Comput. Electr. Eng., vol. 70, pp. 1086–1088, 2018, doi: 10.1016/J.COMPELECENG.2018.07.033.
  24. Kanavos, N. Nodarakis, S. Sioutas, A. K. Tsakalidis, D. Tsolis, and G. Tzimas, “Large Scale Implementations for Twitter Sentiment Classification,” Algorithms, vol. 10, no. 1, p. 33, 2017, doi: 10.3390/A10010033.
  25. G. Vrahatis, K. Dimitrakopoulou, A. Kanavos, S. Sioutas, and A. K. Tsakalidis, “Detecting Perturbed Subpathways towards Mouse Lung Regeneration Following H1N1 Influenza Infection,” Comput., vol. 5, no. 2, p. 20, 2017, doi: 10.3390/COMPUTATION5020020.
  26. Drakopoulos, A. Kanavos, I. Karydis, S. Sioutas, and A. G. Vrahatis, “Tensor-Based Semantically-Aware Topic Clustering of Biomedical Documents,” Comput., vol. 5, no. 3, p. 34, 2017, doi: 10.3390/COMPUTATION5030034.
  27. Kosmatopoulos, K. Tsichlas, A. Gounaris, S. Sioutas, and E. Pitoura, “HiNode: an asymptotically space-optimal storage model for historical queries on graphs,” Distributed Parallel Databases, vol. 35, no. 3–4, pp. 249–285, 2017, doi: 10.1007/S10619-017-7207-Z.
  28. Drakopoulos, A. Kanavos, P. Mylonas, and S. Sioutas, “Defining and evaluating Twitter influence metrics: a higher-order approach in Neo4j,” Soc. Netw. Anal. Min., vol. 7, no. 1, p. 52:1-52:14, 2017, doi: 10.1007/S13278-017-0467-9.
  29. Sioutas, L. S. Iliadis, K. L. Kermanidis, and P. Mylonas, “Introduction to the Special Issue on Mining the Humanities: Technologies and Applications,” Eng. Appl. Artif. Intell., vol. 51, pp. 1–4, 2016, doi: 10.1016/J.ENGAPPAI.2016.03.001.
  30. Evangelopoulos et al., “Evaluating information retrieval using document popularity: An implementation on MapReduce,” Eng. Appl. Artif. Intell., vol. 51, pp. 16–23, 2016, doi: 10.1016/J.ENGAPPAI.2016.01.023.
  31. Gkantouna, S. Sioutas, A. K. Tsakalidis, G. Tzimas, and E. Viennas, “Design reuse in the conceptual schema of CMSs: A pattern-based evaluation approach,” Eng. Appl. Artif. Intell., vol. 51, pp. 97–108, 2016, doi: 10.1016/J.ENGAPPAI.2016.01.003.
  32. Nodarakis, E. Pitoura, S. Sioutas, A. K. Tsakalidis, D. Tsoumakos, and G. Tzimas, “kdANN+: A Rapid AkNN Classifier for Big Data,” Trans. Large Scale Data Knowl. Centered Syst., vol. 24, pp. 139–168, 2016, doi: 10.1007/978-3-662-49214-7\_5.
  33. S. Brodal, S. Sioutas, K. Tsichlas, and C. D. Zaroliagis, “D\(^\mbox2\)-Tree: A New Overlay with Deterministic Bounds,” Algorithmica, vol. 72, no. 3, pp. 860–883, 2015, doi: 10.1007/S00453-014-9878-4.
  34. Manolopoulos and S. Sioutas, “Editorial,” Neurocomputing, vol. 163, pp. 124–125, 2015, doi: 10.1016/J.NEUCOM.2015.01.077.
  35. Avlonitis, I. Karydis, and S. Sioutas, “Early prediction in collective intelligence on video users’ activity,” Inf. Sci., vol. 298, pp. 315–329, 2015, doi: 10.1016/J.INS.2014.11.039.
  36. Sioutas et al., “D-P2P-Sim+: A novel distributed framework for P2P protocols performance testing,” J. Syst. Softw., vol. 100, pp. 211–233, 2015, doi: 10.1016/J.JSS.2014.11.001.
  37. Gerolymatos, S. Sioutas, N. Nodarakis, A. Panaretos, and K. Tsakalidis, “SMaRT: A novel framework for addressing range queries over nonlinear trajectories,” J. Syst. Softw., vol. 105, pp. 79–90, 2015, doi: 10.1016/J.JSS.2015.03.068.
  38. Faliagka et al., “On-line consistent ranking on e-recruitment: seeking the truth behind a well-formed CV,” Artif. Intell. Rev., vol. 42, no. 3, pp. 515–528, 2014, doi: 10.1007/S10462-013-9414-Y.
  39. Karydis, M. Avlonitis, K. Chorianopoulos, and S. Sioutas, “Identifying Important Segments in Videos: A Collective Intelligence Approach,” Int. J. Artif. Intell. Tools, vol. 23, no. 2, 2014, doi: 10.1142/S0218213014400107.
  40. S. Brodal, A. C. Kaporis, A. N. Papadopoulos, S. Sioutas, K. Tsakalidis, and K. Tsichlas, “Dynamic 3-sided planar range queries with expected doubly-logarithmic time,” Theor. Comput. Sci., vol. 526, pp. 58–74, 2014, doi: 10.1016/J.TCS.2014.01.014.
  41. C. Kaporis, C. Makris, S. Sioutas, A. K. Tsakalidis, K. Tsichlas, and C. D. Zaroliagis, “Improved Bounds for Finger Search on a RAM,” Algorithmica, vol. 66, no. 2, pp. 249–286, 2013, doi: 10.1007/S00453-012-9636-4.
  42. Sioutas, P. Triantafillou, G. Papaloukopoulos, E. Sakkopoulos, K. Tsichlas, and Y. Manolopoulos, “ART: sub-logarithmic decentralized range query processing with probabilistic guarantees,” Distributed Parallel Databases, vol. 31, no. 1, pp. 71–109, 2013, doi: 10.1007/S10619-012-7112-4.
  43. Karydis, K. L. Kermanidis, S. Sioutas, and L. S. Iliadis, “Comparing content and context based similarity for musical data,” Neurocomputing, vol. 107, pp. 69–76, 2013, doi: 10.1016/J.NEUCOM.2012.05.033.
  44. Sourla, S. Sioutas, V. Syrimpeis, A. K. Tsakalidis, and G. Tzimas, “CardioSmart365: Artificial Intelligence in the Service of Cardiologic Patients,” Adv. Artif. Intell., vol. 2012, p. 585072:1-585072:12, 2012, doi: 10.1155/2012/585072.
  45. Niforatos, E. Karapanos, and S. Sioutas, “PLBSD: a platform for proactive location-based service discovery,” J. Locat. Based Serv., vol. 6, no. 4, pp. 234–249, 2012, doi: 10.1080/17489725.2012.691671.
  46. Sioutas, E. Magkos, I. Karydis, and V. S. Verykios, “Uncertainty for Privacy and 2-Dimensional Range Query Distortion,” J. Comput. Sci. Eng., vol. 5, no. 3, pp. 210–222, 2011, doi: 10.5626/JCSE.2011.5.3.210.
  47. Sioutas, G. Papaloukopoulos, K. Tsichlas, and Y. Manolopoulos, “An Experimental Performance Comparison for Indexing Mobile Objects on the Plane,” Int. J. Organ. Collect. Intell., vol. 1, no. 4, pp. 78–96, 2010, doi: 10.4018/JOCI.2010100105.
  48. C. Kaporis et al., “ISB-tree: A new indexing scheme with efficient expected behaviour,” J. Discrete Algorithms, vol. 8, no. 4, pp. 373–387, 2010, doi: 10.1016/J.JDA.2010.08.001.
  49. K. Tsolis, S. Sioutas, and T. S. Papatheodorou, “A multimedia application for watermarking digital images based on a content based image retrieval technique,” Multim. Tools Appl., vol. 47, no. 3, pp. 581–597, 2010, doi: 10.1007/S11042-009-0338-0.
  50. Sioutas, D. Sofotassios, K. Tsichlas, D. Sotiropoulos, and P. M. Vlamos, “Canonical Polygon Queries on the Plane: A New Approach,” J. Comput., vol. 4, no. 9, pp. 913–919, 2009, doi: 10.4304/JCP.4.9.913-919.
  51. Sioutas, E. Sakkopoulos, C. Makris, B. Vassiliadis, A. K. Tsakalidis, and P. Triantafillou, “Dynamic Web Service discovery architecture based on a novel peer based overlay network,” J. Syst. Softw., vol. 82, no. 5, pp. 809–824, 2009, doi: 10.1016/J.JSS.2008.11.845.
  52. Lagogiannis, N. A. Lorentzos, S. Sioutas, and E. Theodoridis, “A time efficient indexing scheme for complex spatiotemporal retrieval,” ACM SIGMOD Rec., vol. 38, no. 3, pp. 11–16, 2009, doi: 10.1145/1815933.1815936.
  53. Sioutas, K. Tsakalidis, K. Tsichlas, C. Makris, and Y. Manolopoulos, “A new approach on indexing mobile objects on the plane,” Data Knowl. Eng., vol. 67, no. 3, pp. 362–380, 2008, doi: 10.1016/J.DATAK.2008.06.009.
  54. Sioutas, “NBDT: an efficient P2P indexing scheme for web service discovery,” Int. J. Web Eng. Technol., vol. 4, no. 1, pp. 95–113, 2008, doi: 10.1504/IJWET.2008.016106.
  55. Sioutas, E. Sakkopoulos, L. Drossos, and S. Sirmakessis, “Balanced distributed web service lookup system,” J. Netw. Comput. Appl., vol. 31, no. 2, pp. 149–162, 2008, doi: 10.1016/J.JNCA.2006.03.005.
  56. Bakalis et al., “Locating Maximal Multirepeats in Multiple Strings Under Various Constraints,” Comput. J., vol. 50, no. 2, pp. 178–185, 2007, doi: 10.1093/COMJNL/BXL058.
  57. K. Tsolis, S. Sioutas, L. Drossos, and T. S. Papatheodorou, “A Cultural Information System Providing e-commerce Web Services, Digital Rights Management and Copyright Protection,” J. Univers. Comput. Sci., vol. 13, no. 4, pp. 543–571, 2007, doi: 10.3217/JUCS-013-04-0543.
  58. Sioutas, K. Tsichlas, B. Vassiliadis, and D. K. Tsolis, “Efficient Access Methods for Temporal Interval Queries of Video Metadata,” J. Univers. Comput. Sci., vol. 13, no. 10, pp. 1411–1433, 2007, doi: 10.3217/JUCS-013-10-1411.
  59. Delis, C. Makris, and S. Sioutas, “A Provably Efficient Computational Model For Approximate Spatiotemporal Retrieval,” J. Univers. Comput. Sci., vol. 11, no. 6, pp. 830–849, 2005, doi: 10.3217/JUCS-011-06-0830.
  60. Sioutas et al., “Geometric Retrieval for Grid Points in the RAM Model,” J. Univers. Comput. Sci., vol. 10, no. 9, pp. 1325–1353, 2004, doi: 10.3217/JUCS-010-09-1325.
  61. Lagogiannis, C. Makris, Y. Panagis, S. Sioutas, and K. Tsichlas, “New Dynamic Balanced Search Trees with Worst-Case Constant Update Time,” J. Autom. Lang. Comb., vol. 8, no. 4, pp. 607–632, 2003, doi: 10.25596/JALC-2003-607.
  62. Lagogiannis, C. Makris, Y. Panagis, S. Sioutas, and K. Tsichlas, “Rectangle Enclosure Reporting in Linear Space Revisited,” J. Autom. Lang. Comb., vol. 8, no. 4, pp. 633–645, 2003, doi: 10.25596/JALC-2003-633.
  63. S. Brodal, C. Makris, S. Sioutas, A. K. Tsakalidis, and K. Tsichlas, “Optimal Solutions for the Temporal Precedence Problem,” Algorithmica, vol. 33, no. 4, pp. 494–510, 2002, doi: 10.1007/S00453-002-0935-Z.
  64. Kitsios, C. Makris, S. Sioutas, A. K. Tsakalidis, J. Tsaknakis, and B. Vassiliadis, “An optimal algorithm for reporting visible rectangles,” Inf. Process. Lett., vol. 81, no. 5, pp. 283–288, 2002, doi: 10.1016/S0020-0190(01)00228-9.

 

Επιστημονικές Δημοσιεύσεις σε Συνέδρια με Κριτές


Gerasimos Vonitsanos, Andreas Kanavos, Foteini Grivokostopoulou, Spyros Sioutas: Optimized Price Prediction of Cryptocurrencies using Deep Learning on High-Volume Time Series Data. ΙΕΕΕ IISA 2024: 1-8.

  1. Karras, C. N. Karras, A. Giannaros, D. Tsolis, and S. Sioutas, “Mobility-Aware Workload Distribution and Task Allocation for Mobile Edge Computing Networks,” in Proceedings of the 2023 International Conference on Advances in Computing Research, ACR 2023, Orlando, FL, USA, May 8-10, 2023, 2023, vol. 700, pp. 395–407. doi: 10.1007/978-3-031-33743-7\_32.
  2. Karras, C. N. Karras, I. Karydis, M. Avlonitis, and S. Sioutas, “An Adaptive, Energy-Efficient DRL-Based and MCMC-Based Caching Strategy for IoT Systems,” in Algorithmic Aspects of Cloud Computing – 8th International Symposium, ALGOCLOUD 2023, Amsterdam, The Netherlands, September 5, 2023, Revised Selected Papers, 2023, vol. 14053, pp. 66–85. doi: 10.1007/978-3-031-49361-4\_4.
  3. Karras, C. N. Karras, N. Schizas, S. Sioutas, and C. D. Zaroliagis, “Algorithmic Aspects of Distributed Hash Tables on Cloud, Fog, and Edge Computing Applications: A Survey,” in Algorithmic Aspects of Cloud Computing – 8th International Symposium, ALGOCLOUD 2023, Amsterdam, The Netherlands, September 5, 2023, Revised Selected Papers, 2023, vol. 14053, pp. 133–171. doi: 10.1007/978-3-031-49361-4\_8.
  4. Karras et al., “Decentralized Algorithms for Efficient Energy Management over Cloud-Edge Infrastructures,” in Algorithmic Aspects of Cloud Computing – 8th International Symposium, ALGOCLOUD 2023, Amsterdam, The Netherlands, September 5, 2023, Revised Selected Papers, 2023, vol. 14053, pp. 211–230. doi: 10.1007/978-3-031-49361-4\_12.
  5. Karras, A. Giannaros, C. N. Karras, K. C. Giotopoulos, D. Tsolis, and S. Sioutas, “Edge Artificial Intelligence in Large-Scale IoT Systems, Applications, and Big Data Infrastructures,” in 8th South-East Europe Design Automation, Computer Engineering, Computer Networks and Social Media Conference, SEEDA-CECNSM 2023, Piraeus, Greece, November 10-12, 2023, 2023, pp. 1–8. doi: 10.1109/SEEDA-CECNSM61561.2023.10470756.
  6. Karras et al., “TinyML-based Event Detection: An Edge-Cloud Approach for Smart Agriculture over LoRa WSNs,” in 8th South-East Europe Design Automation, Computer Engineering, Computer Networks and Social Media Conference, SEEDA-CECNSM 2023, Piraeus, Greece, November 10-12, 2023, 2023, pp. 1–10. doi: 10.1109/SEEDA-CECNSM61561.2023.10470881.
  7. Nikolaou, G. Drakopoulos, P. Mylonas, and S. Sioutas, “Intelligent Agents with Graph Mining for Link Prediction over Neo4j,” in Proceedings of the 19th International Conference on Web Information Systems and Technologies, WEBIST 2023, Rome, Italy, November 15-17, 2023, 2023, pp. 504–511. doi: 10.5220/0012238100003584.
  8. Karras, C. N. Karras, A. Pervanas, S. Sioutas, and C. D. Zaroliagis, “SQL Query Optimization in Distributed NoSQL Databases for Cloud-Based Applications,” in Algorithmic Aspects of Cloud Computing – 7th International Symposium, ALGOCLOUD 2022, Potsdam, Germany, September 6, 2022, Revised Selected Papers, 2022, vol. 13799, pp. 21–41. doi: 10.1007/978-3-031-33437-5\_2.
  9. N. Karras, A. Karras, D. Tsolis, M. Avlonitis, and S. Sioutas, “A Hybrid Ensemble Deep Learning Approach for Emotion Classification,” in IEEE International Conference on Big Data, Big Data 2022, Osaka, Japan, December 17-20, 2022, 2022, pp. 3881–3890. doi: 10.1109/BIGDATA55660.2022.10020483.
  10. Karavokyris and S. Sioutas, “Graph Neural Networks For Affective Social Media: A Comprehensive Overview,” in Proceedings of the CIKM 2022 Workshops co-located with 31st ACM International Conference on Information and Knowledge Management (CIKM 2022), Atlanta, USA, October 17-21, 2022, 2022, vol. 3318. [Online]. Available: https://ceur-ws.org/Vol-3318/paper2.pdf
  11. Michalopoulos, A. Karras, C. N. Karras, S. Sioutas, and K. C. Giotopoulos, “Neuro-Fuzzy Employee Ranking System in the Public Sector,” in Fuzzy Systems and Data Mining VIII – Proceedings of FSDM 2022, Virtual Event, 4-7 November 2022, 2022, vol. 358, pp. 325–333. doi: 10.3233/FAIA220399.
  12. Tsipis, S. Fanarioti, V. Komianos, S. Sioutas, and K. Oikonomou, “A Study on Robustness for the Single Server Location in Distributed Interactive Applications,” in Global Information Infrastructure and Networking Symposium, GIIS 2022, Argostoli, Greece, September 26-28, 2022, 2022, pp. 68–72. doi: 10.1109/GIIS56506.2022.9936934.
  13. N. Karras, A. Karras, L. Theodorakopoulos, I. Giannoukou, and S. Sioutas, “Expanding Queries with Maximum Likelihood Estimators and Language Models,” in Proceedings of the ICR’22 International Conference on Innovations in Computing Research, Athens, Greece, 29-31 August, 2022, 2022, vol. 1431, pp. 201–213. doi: 10.1007/978-3-031-14054-9\_20.
  14. Karras, C. N. Karras, K. C. Giotopoulos, I. Giannoukou, D. Tsolis, and S. Sioutas, “Download Speed Optimization in P2P Networks Using Decision Making and Adaptive Learning,” in Proceedings of the ICR’22 International Conference on Innovations in Computing Research, Athens, Greece, 29-31 August, 2022, 2022, vol. 1431, pp. 225–238. doi: 10.1007/978-3-031-14054-9\_22.
  15. Karatzas, A. Karras, C. N. Karras, K. C. Giotopoulos, K. Oikonomou, and S. Sioutas, “On Autonomous Drone Navigation Using Deep Learning and an Intelligent Rainbow DQN Agent,” in Intelligent Data Engineering and Automated Learning – IDEAL 2022 – 23rd International Conference, IDEAL 2022, Manchester, UK, November 24-26, 2022, Proceedings, 2022, vol. 13756, pp. 134–145. doi: 10.1007/978-3-031-21753-1\_14.
  16. Karras, C. N. Karras, G. Drakopoulos, D. Tsolis, P. Mylonas, and S. Sioutas, “SAF: A Peer to Peer IoT LoRa System for Smart Supply Chain in Agriculture,” in Artificial Intelligence Applications and Innovations – 18th IFIP WG 12.5 International Conference, AIAI 2022, Hersonissos, Crete, Greece, June 17-20, 2022, Proceedings, Part II, 2022, vol. 647, pp. 41–50. doi: 10.1007/978-3-031-08337-2\_4.
  17. N. Karras, A. Karras, M. Avlonitis, and S. Sioutas, “An Overview of MCMC Methods: From Theory to Applications,” in Artificial Intelligence Applications and Innovations. AIAI 2022 IFIP WG 12.5 International Workshops – MHDW 2022, 5G-PINE 2022, AIBMG 2022, ML@HC 2022, and AIBEI 2022, Hersonissos, Crete, Greece, June 17-20, 2022, Proceedings, 2022, vol. 652, pp. 319–332. doi: 10.1007/978-3-031-08341-9\_26.
  18. K. Lykothanasi, S. Sioutas, and K. Tsichlas, “Efficient Large-Scale Machine Learning Techniques for Rapid Motif Discovery in Energy Data Streams,” in Artificial Intelligence Applications and Innovations – 18th IFIP WG 12.5 International Conference, AIAI 2022, Hersonissos, Crete, Greece, June 17-20, 2022, Proceedings, Part I, 2022, vol. 646, pp. 331–342. doi: 10.1007/978-3-031-08333-4\_27.
  19. N. Karras, A. Karras, M. Avlonitis, I. Giannoukou, and S. Sioutas, “Maximum Likelihood Estimators on MCMC Sampling Algorithms for Decision Making,” in Artificial Intelligence Applications and Innovations. AIAI 2022 IFIP WG 12.5 International Workshops – MHDW 2022, 5G-PINE 2022, AIBMG 2022, ML@HC 2022, and AIBEI 2022, Hersonissos, Crete, Greece, June 17-20, 2022, Proceedings, 2022, vol. 652, pp. 345–356. doi: 10.1007/978-3-031-08341-9\_28.
  20. Konstantopoulos, S. Sioutas, and K. Tsichlas, “Machine Learning Techniques for Regression in Energy Disaggregation,” in Artificial Intelligence Applications and Innovations – 18th IFIP WG 12.5 International Conference, AIAI 2022, Hersonissos, Crete, Greece, June 17-20, 2022, Proceedings, Part I, 2022, vol. 646, pp. 356–366. doi: 10.1007/978-3-031-08333-4\_29.
  21. Drakopoulos, E. Kafeza, I. Giannoukou, P. Mylonas, and S. Sioutas, “Simulating Blockchain Consensus Protocols in Julia: Proof of Work vs Proof of Stake,” in Artificial Intelligence Applications and Innovations. AIAI 2022 IFIP WG 12.5 International Workshops – MHDW 2022, 5G-PINE 2022, AIBMG 2022, ML@HC 2022, and AIBEI 2022, Hersonissos, Crete, Greece, June 17-20, 2022, Proceedings, 2022, vol. 652, pp. 357–369. doi: 10.1007/978-3-031-08341-9\_29.

C.-P. Balatsouras, A. Karras, C. N. Karras, D. Tsolis, and S. Sioutas, “WiCHORD: A Chord Protocol Application on P2P LoRa Wireless Sensor Networks,” in 13th International Conference on Information, Intelligence, Systems & Applications, ΙΕΕΕ IISA 2022, Corfu, Greece, July 18-20, 2022, 2022, pp. 1–8. doi: 10.1109/IISA56318.2022.9904339.

  1. Karras, C. N. Karras, D. Samoladas, K. C. Giotopoulos, and S. Sioutas, “Query Optimization in NoSQL Databases Using an Enhanced Localized R-tree Index,” in Information Integration and Web Intelligence – 24th International Conference, ΙΙWAS 2022, Virtual Event, November 28-30, 2022, ACM Proceedings, 2022, vol. 13635, pp. 391–398. doi: 10.1007/978-3-031-21047-1\_33.
  2. N. Karras, A. Karras, G. Drakopoulos, D. Tsolis, P. Mylonas, and S. Sioutas, “A LoRa-Based Emotion Estimation Scheme for Smart Home Automated Actions Using ELMs,” in IEEE International Smart Cities Conference, ISC2 2022, Pafos, Cyprus, September 26-29, 2022, 2022, pp. 1–7. doi: 10.1109/ISC255366.2022.9922360.
  3. Samoladas, C. N. Karras, A. Karras, L. Theodorakopoulos, and S. Sioutas, “Tree Data Structures and Efficient Indexing Techniques for Big Data Management: A Comprehensive Study,” in Proceedings of the 26th Pan-Hellenic Conference on Informatics, PCI 2022, Athens, Greece, November 25-27, 2022, 2022, pp. 123–132. doi: 10.1145/3575879.3575977.
  4. Karras, C. N. Karras, A. Bompotas, P. Bouras, L. Theodorakopoulos, and S. Sioutas, “SparkReact: A Novel and User-friendly Graphical Interface for the Apache Spark MLlib Library,” in Proceedings of the 26th Pan-Hellenic Conference on Informatics, PCI 2022, Athens, Greece, November 25-27, 2022, 2022, pp. 230–239. doi: 10.1145/3575879.3575998.
  5. N. Karras, A. Karras, I. Giannoukou, K. C. Giotopoulos, D. Tsolis, and S. Sioutas, “Global Graph Clustering and Local Graph Exploration for Community Detection in Twitter,” in 7th South-East Europe Design Automation, Computer Engineering, Computer Networks and Social Media Conference, SEEDA-CECNSM 2022, Ioannina, Greece, September 23-25, 2022, 2022, pp. 1–8. doi: 10.1109/SEEDA-CECNSM57760.2022.9933012.
  6. Karras, C. N. Karras, K. C. Giotopoulos, D. Tsolis, K. Oikonomou, and S. Sioutas, “Peer to Peer Federated Learning: Towards Decentralized Machine Learning on Edge Devices,” in 7th South-East Europe Design Automation, Computer Engineering, Computer Networks and Social Media Conference, SEEDA-CECNSM 2022, Ioannina, Greece, September 23-25, 2022, 2022, pp. 1–9. doi: 10.1109/SEEDA-CECNSM57760.2022.9932980.
  7. N. Karras, A. Karras, D. Tsolis, K. C. Giotopoulos, and S. Sioutas, “Distributed Gibbs Sampling and LDA Modelling for Large Scale Big Data Management on PySpark,” in 7th South-East Europe Design Automation, Computer Engineering, Computer Networks and Social Media Conference, SEEDA-CECNSM 2022, Ioannina, Greece, September 23-25, 2022, 2022, pp. 1–8. doi: 10.1109/SEEDA-CECNSM57760.2022.9932990.
  8. Zacharia et al., “An Intelligent Microprocessor Integrating TinyML in Smart Hotels for Rapid Accident Prevention,” in 7th South-East Europe Design Automation, Computer Engineering, Computer Networks and Social Media Conference, SEEDA-CECNSM 2022, Ioannina, Greece, September 23-25, 2022, 2022, pp. 1–7. doi: 10.1109/SEEDA-CECNSM57760.2022.9932982.
  9. N. Karras, A. Karras, G. Drakopoulos, K. Tsakalidis, P. Mylonas, and S. Sioutas, “Weighted Reservoir Sampling On Evolving Streams: A Sampling Algorithmic Framework For Stream Event Identification,” in SETN 2022: 12th Hellenic Conference on Artificial Intelligence, Corfu, Greece, September 7 – 9, 2022, 2022, p. 26:1-26:9. ACM, doi: 10.1145/3549737.3549767.
  10. Drakopoulos, A. Karras, C. N. Karras, K. C. Giotopoulos, P. Mylonas, and S. Sioutas, “Decomposing Twitter Graphs Based On Hashtag Trajectories: Mining And Clustering Paths Over MongoDB,” in SETN 2022: 12th Hellenic Conference on Artificial Intelligence, Corfu, Greece, September 7 – 9, 2022, 2022, p. 27:1-27:8. ACM, doi: 10.1145/3549737.3549768.
  11. Drakopoulos, E. Kafeza, P. Mylonas, and S. Sioutas, “Approximate High Dimensional Graph Mining With Matrix Polar Factorization: A Twitter Application,” in 2021 IEEE International Conference on Big Data (Big Data), Orlando, FL, USA, December 15-18, 2021, 2021, pp. 4441–4449. doi: 10.1109/BIGDATA52589.2021.9671926.
  12. Drakopoulos, E. Kafeza, P. Mylonas, and S. Sioutas, “A graph neural network for fuzzy Twitter graphs,” in Proceedings of the CIKM 2021 Workshops co-located with 30th ACM International Conference on Information and Knowledge Management (CIKM 2021), Gold Coast, Queensland, Australia, November 1-5, 2021, 2021, vol. 3052. [Online]. Available: https://ceur-ws.org/Vol-3052/paper24.pdf
  13. Marountas, G. Drakopoulos, P. Mylonas, and S. Sioutas, “Recommending Database Architectures for Social Queries: A Twitter Case Study,” in Artificial Intelligence Applications and Innovations – 17th IFIP WG 12.5 International Conference, AIAI 2021, Hersonissos, Crete, Greece, June 25-27, 2021, Proceedings, 2021, vol. 627, pp. 715–728. doi: 10.1007/978-3-030-79150-6\_56.
  14. Drakopoulos, Y. Voutos, P. Mylonas, and S. Sioutas, “Motivating Item Annotations In Cultural Portals With UI/UX Based On Behavioral Economics,” in 12th International Conference on Information, Intelligence, Systems & Applications, IEEE IISA 2021, Chania Crete, Greece, July 12-14, 2021, 2021, pp. 1–6. doi: 10.1109/IISA52424.2021.9555569.
  15. Kokotsaki, G. Kapellakou, A. Giannaros, and S. Sioutas, “The application of Blockchain technology in Copyright field: formalities and ‘smart contracts,’” in 12th International Conference on Information, Intelligence, Systems & Applications, IEEE IISA 2021, Chania Crete, Greece, July 12-14, 2021, 2021, pp. 1–8. doi: 10.1109/IISA52424.2021.9555572.
  16. Drakopoulos, E. Kafeza, P. Mylonas, and S. Sioutas, “Process Mining Analytics for Industry 4.0 with Graph Signal Processing,” in Proceedings of the 17th International Conference on Web Information Systems and Technologies, WEBIST 2021, October 26-28, 2021, 2021, pp. 553–560. ACM, doi: 10.5220/0010718300003058.
  17. Lyras, S. Vernikou, A. Kanavos, S. Sioutas, and P. Mylonas, “Modeling Credibility in Social Big Data using LSTM Neural Networks,” in Proceedings of the 17th International Conference on Web Information Systems and Technologies, WEBIST 2021, October 26-28, 2021, 2021, pp. 599–606. doi: 10.5220/0010726600003058.
  18. Drakopoulos, I. Giannoukou, P. Mylonas, and S. Sioutas, “A Graph Neural Network For Assessing The Affective Coherence Of Twitter Graphs,” in 2020 IEEE International Conference on Big Data (IEEE BigData 2020), Atlanta, GA, USA, December 10-13, 2020, 2020, pp. 3618–3627. doi: 10.1109/BIGDATA50022.2020.9378492.
  19. Drakopoulos, I. Giannoukou, P. Mylonas, and S. Sioutas, “On Tensor Distances for Self Organizing Maps: Clustering Cognitive Tasks,” in Database and Expert Systems Applications – 31st International Conference, DEXA 2020, Bratislava, Slovakia, September 14-17, 2020, Proceedings, Part II, 2020, vol. 12392, pp. 195–210. doi: 10.1007/978-3-030-59051-2\_13.
  20. Savvopoulos, G. Kalogeras, C. Anagnostopoulos, C. Alexakos, S. Sioutas, and A. P. Kalogeras, “Cluster-based Energy Load Profiling on Residential Smart Buildings,” in 25th IEEE International Conference on Emerging Technologies and Factory Automation, ETFA 2020, Vienna, Austria, September 8-11, 2020, 2020, pp. 821–828. doi: 10.1109/ETFA46521.2020.9212161.
  21. Drakopoulos, I. Giannoukou, P. Mylonas, and S. Sioutas, “The Converging Triangle of Cultural Content, Cognitive Science, and Behavioral Economics,” in Artificial Intelligence Applications and Innovations. AIAI 2020 IFIP WG 12.5 International Workshops – MHDW 2020 and 5G-PINE 2020, Neos Marmaras, Greece, June 5-7, 2020, Proceedings, 2020, vol. 585, pp. 200–212. doi: 10.1007/978-3-030-49190-1\_18.
  22. Alexopoulos, G. Drakopoulos, A. Kanavos, S. Sioutas, and G. Vonitsanos, “Parametric Evaluation Of Collaborative Filtering Over Apache Spark,” in 5th South-East Europe Design Automation, Computer Engineering, Computer Networks and Social Media Conference, SEEDA-CECNSM 2020, Corfu, Greece, September 25-27, 2020, 2020, pp. 1–8. doi: 10.1109/SEEDA-CECNSM49515.2020.9221836.
  23. Drakopoulos, K. C. Giotopoulos, I. Giannoukou, and S. Sioutas, “Unsupervised Discovery Of Semantically Aware Communities With Tensor Kruskal Decomposition: A Case Study In Twitter,” in 15th International Workshop on Semantic and Social Media Adaptation and Personalization, SMAP 2020, Zakynthos, Greece, October 29-30, 2020, 2020, pp. 1–8. doi: 10.1109/SMAP49528.2020.9248469.
  24. Vonitsanos, E. Dritsas, A. Kanavos, P. Mylonas, and S. Sioutas, “Security and Privacy Solutions associated with NoSQL Data Stores,” in 15th International Workshop on Semantic and Social Media Adaptation and Personalization, SMAP 2020, Zakynthos, Greece, October 29-30, 2020, 2020, pp. 1–5. doi: 10.1109/SMAP49528.2020.9248442.
  25. Sioutas, G. Vonitsanos, N. Zacharatos, and C. D. Zaroliagis, “Scalable and Hierarchical Distributed Data Structures for Efficient Big Data Management,” in Algorithmic Aspects of Cloud Computing – 5th International Symposium, ALGOCLOUD 2019, Munich, Germany, September 10, 2019, Revised Selected Papers, 2019, vol. 12041, pp. 122–160. doi: 10.1007/978-3-030-58628-7\_8.
  26. N. Papadopoulos, S. Sioutas, C. D. Zaroliagis, and N. Zacharatos, “Efficient Distributed Range Query Processing in Apache Spark,” in 19th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing, CCGRID 2019, Larnaca, Cyprus, May 14-17, 2019, 2019, pp. 569–575. doi: 10.1109/CCGRID.2019.00073.
  27. Drakopoulos, X. Liapakis, E. Spyrou, G. Tzimas, P. Mylonas, and S. Sioutas, “Computing Long Sequences of Consecutive Fibonacci Integers with TensorFlow,” in Artificial Intelligence Applications and Innovations – AIAI 2019 IFIP WG 12.5 International Workshops: MHDW and 5G-PINE 2019, Hersonissos, Crete, Greece, May 24-26, 2019, Proceedings, 2019, vol. 560, pp. 150–160. doi: 10.1007/978-3-030-19909-8\_13.
  28. Drakopoulos, P. Mylonas, and S. Sioutas, “A Case of Adaptive Nonlinear System Identification with Third Order Tensors in TensorFlow,” in IEEE International Symposium on INnovations in Intelligent SysTems and Applications, INISTA 2019, Sofia, Bulgaria, July 3-5, 2019, 2019, pp. 1–6. doi: 10.1109/INISTA.2019.8778406.
  29. Vonitsanos, A. Kanavos, P. Mylonas, and S. Sioutas, “A NoSQL Database Approach for Modeling Heterogeneous and Semi-Structured Information,” in 9th International Conference on Information, Intelligence, Systems and Applications, IEEE IISA 2018, Zakynthos, Greece, July 23-25, 2018, 2018, pp. 1–8. doi: 10.1109/IISA.2018.8633658.
  30. Karydis, A. Kanavos, S. Sioutas, M. Avlonitis, and N. I. Karacapilidis, “LESIM: A Novel Lexical Similarity Measure Technique for Multimedia Information Retrieval,” in 12th Mediterranean Conference on Information Systems, MCIS 2018, Corfu, Greece, 28-30 September 2018, 2018, p. 31. [Online]. Available: https://aisel.aisnet.org/mcis2018/31
  31. Boussis, E. Dritsas, A. Kanavos, S. Sioutas, G. Tzimas, and V. S. Verykios, “MapReduce Implementations for Privacy Preserving Record Linkage,” in Proceedings of the 10th Hellenic Conference on Artificial Intelligence, SETN 2018, Patras, Greece, July 09-12, 2018, 2018, p. 16:1-16:4. doi: 10.1145/3200947.3201043.
  32. Andronikos, A. Singh, K. Giannakis, and S. Sioutas, “Computing Probabilistic Queries in the Presence of Uncertainty via Probabilistic Automata,” in Algorithmic Aspects of Cloud Computing – Third International Workshop, ALGOCLOUD 2017, Vienna, Austria, September 5, 2017, Revised Selected Papers, 2017, vol. 10739, pp. 106–120. doi: 10.1007/978-3-319-74875-7\_7.
  33. Chioti, E. Dritsas, A. Kanavos, X. Liapakis, S. Sioutas, and A. K. Tsakalidis, “Bloom Filters for Efficient Coupling Between Tables of a Database,” in Engineering Applications of Neural Networks – 18th International Conference, EANN 2017, Athens, Greece, August 25-27, 2017, Proceedings, 2017, vol. 744, pp. 596–608. doi: 10.1007/978-3-319-65172-9\_50.
  34. Drakopoulos, F. Stathopoulou, G. Tzimas, M. Paraskevas, P. Mylonas, and S. Sioutas, “A Genetic Algorithm for Discovering Linguistic Communities in Spatiosocial Tensors with an Application to Trilingual Luxemburg,” in Engineering Applications of Neural Networks – 18th International Conference, EANN 2017, Athens, Greece, August 25-27, 2017, Proceedings, 2017, vol. 744, pp. 630–644. doi: 10.1007/978-3-319-65172-9\_53.
  35. Drakopoulos, A. Kanavos, P. Mylonas, S. Sioutas, and D. Tsolis, “Towards a framework for tensor ontologies over Neo4j: Representations and operations,” in 8th International Conference on Information, Intelligence, Systems & Applications, IEEE IISA 2017, Larnaca, Cyprus, August 27-30, 2017, 2017, pp. 1–6. doi: 10.1109/IISA.2017.8316441.
  36. Kokotinis et al., “NSM-Tree: Efficient Indexing on Top of NoSQL Databases,” in Algorithmic Aspects of Cloud Computing – Second International Workshop, ALGOCLOUD 2016, Aarhus, Denmark, August 22, 2016, Revised Selected Papers, 2016, vol. 10230, pp. 3–14. doi: 10.1007/978-3-319-57045-7\_1.
  37. Nodarakis et al., “(A)kNN Query Processing on the Cloud: A Survey,” in Algorithmic Aspects of Cloud Computing – Second International Workshop, ALGOCLOUD 2016, Aarhus, Denmark, August 22, 2016, Revised Selected Papers, 2016, vol. 10230, pp. 26–40. doi: 10.1007/978-3-319-57045-7\_3.
  38. Sioutas et al., “Survey of Machine Learning Algorithms on Spark Over DHT-based Structures,” in Algorithmic Aspects of Cloud Computing – Second International Workshop, ALGOCLOUD 2016, Aarhus, Denmark, August 22, 2016, Revised Selected Papers, 2016, vol. 10230, pp. 146–156. doi: 10.1007/978-3-319-57045-7\_9.
  39. Karydis, S. Sioutas, M. Avlonitis, P. Mylonas, and A. Kanavos, “A Survey on Big Data and Collective Intelligence,” in Algorithmic Aspects of Cloud Computing – Second International Workshop, ALGOCLOUD 2016, Aarhus, Denmark, August 22, 2016, Revised Selected Papers, 2016, vol. 10230, pp. 169–181. doi: 10.1007/978-3-319-57045-7\_11.
  40. Nodarakis, S. Sioutas, A. K. Tsakalidis, and G. Tzimas, “Large Scale Sentiment Analysis on Twitter with Spark,” in Proceedings of the Workshops of the EDBT/ICDT 2016 Joint Conference, EDBT/ICDT Workshops 2016, Bordeaux, France, March 15, 2016, 2016, vol. 1558. [Online]. Available: https://ceur-ws.org/Vol-1558/paper41.pdf
  41. S. Kyrkou, P. Mylonas, E. Spyrou, S. Sioutas, A. Rapti, and D. Tsolis, “Evaluating Clustering Algorithms on a Multimedia Metadata Dataset,” in Proceedings of the 20th Pan-Hellenic Conference on Informatics, Patras, Greece, November 10-12, 2016, 2016, p. 81. doi: 10.1145/3003733.3003809.
  42. Nodarakis, S. Sioutas, A. K. Tsakalidis, and G. Tzimas, “MR-SAT: A MapReduce Algorithm for Big Data Sentiment Analysis on Twitter,” in Proceedings of the 12th International Conference on Web Information Systems and Technologies, WEBIST 2016, Volume 1, Rome, Italy, April 23-25, 2016, 2016, pp. 140–147. doi: 10.5220/0005850401400147.
  43. Karydis, S. Sioutas, P. Triantafillou, and D. Tsoumakos, Eds., Algorithmic Aspects of Cloud Computing – First International Workshop, ALGOCLOUD 2015, Patras, Greece, September 14-15, 2015. Revised Selected Papers, vol. 9511. Springer, 2016. doi: 10.1007/978-3-319-29919-8.
  44. Kendea, V. Gkantouna, A. Rapti, S. Sioutas, G. Tzimas, and D. Tsolis, “Graph DBs vs. Column-Oriented Stores: A Pure Performance Comparison,” in Algorithmic Aspects of Cloud Computing – First International Workshop, ALGOCLOUD 2015, Patras, Greece, September 14-15, 2015. Revised Selected Papers, 2015, vol. 9511, pp. 62–74. doi: 10.1007/978-3-319-29919-8\_5.
  45. Nodarakis, S. Sioutas, P. Gerolymatos, A. K. Tsakalidis, and G. Tzimas, “Convex Polygon Planar Range Queries on the Cloud: Grid vs. Angle-Based Partitioning,” in Algorithmic Aspects of Cloud Computing – First International Workshop, ALGOCLOUD 2015, Patras, Greece, September 14-15, 2015. Revised Selected Papers, 2015, vol. 9511, pp. 114–125. doi: 10.1007/978-3-319-29919-8\_9.
  46. Sioutas, E. Sourla, K. Tsichlas, and C. D. Zaroliagis, “ART undefined̂+ + : A Fault-Tolerant Decentralized Tree Structure with Ultimate Sub-logarithmic Efficiency,” in Algorithmic Aspects of Cloud Computing – First International Workshop, ALGOCLOUD 2015, Patras, Greece, September 14-15, 2015. Revised Selected Papers, 2015, vol. 9511, pp. 126–137. doi: 10.1007/978-3-319-29919-8\_10.
  47. Naskos, A. Gounaris, and S. Sioutas, “Cloud Elasticity: A Survey,” in Algorithmic Aspects of Cloud Computing – First International Workshop, ALGOCLOUD 2015, Patras, Greece, September 14-15, 2015. Revised Selected Papers, 2015, vol. 9511, pp. 151–167. doi: 10.1007/978-3-319-29919-8\_12.
  48. Naskos et al., “Dependable Horizontal Scaling Based on Probabilistic Model Checking,” in 15th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing, CCGrid 2015, Shenzhen, China, May 4-7, 2015, 2015, pp. 31–40. doi: 10.1109/CCGRID.2015.91.

[D. Makris, I. Karydis, and S. Sioutas, “The Greek Music Dataset,” in Workshop Proceedings of the 16th International Conference on Engineering Applications of Neural Networks, EANN 2015, Rhodes Island, Greece, September 25-28, 2015, 2015, p. 22:1-22:7. doi: 10.1145/2797143.2797175.

  1. Rapti, D. Tsolis, S. Sioutas, and A. K. Tsakalidis, “A Survey: Mining Linked Cultural Heritage Data,” in Workshop Proceedings of the 16th International Conference on Engineering Applications of Neural Networks, EANN 2015, Rhodes Island, Greece, September 25-28, 2015, 2015, p. 24:1-24:6. doi: 10.1145/2797143.2797172.
  2. Sioutas, E. Sourla, K. Tsichlas, and C. D. Zaroliagis, “D3-Tree: A Dynamic Deterministic Decentralized Structure,” in Algorithms – ESA 2015 – 23rd Annual European Symposium, Patras, Greece, September 14-16, 2015, Proceedings, 2015, vol. 9294, pp. 989–1000. doi: 10.1007/978-3-662-48350-3\_82.
  3. Rapti, S. Sioutas, K. Tsichlas, and G. Tzimas, “Virus Propagation in Multiple Profile Networks,” in Proceedings of the 21th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, Sydney, NSW, Australia, August 10-13, 2015, 2015, pp. 975–984. doi: 10.1145/2783258.2783386.
  4. Sakkopoulos et al., “Mobile Data Fusion from Multiple Tracking Sensors to Augment Maritime Safety: Mobile Detection, Early Identification, and Tracking of Moving Objects,” in 2015 IEEE International Conference on Mobile Services, MS 2015, New York City, NY, USA, June 27 – July 2, 2015, 2015, pp. 112–119. doi: 10.1109/MOBSERV.2015.25.
  5. Kaplanis, M. Kendea, S. Sioutas, C. Makris, and G. Tzimas, “HB+tree: use hadoop and HBase even your data isn’t that big,” in Proceedings of the 30th Annual ACM Symposium on Applied Computing, Salamanca, Spain, April 13-17, 2015, 2015, pp. 973–980. doi: 10.1145/2695664.2695723.
  6. Nodarakis, E. Pitoura, S. Sioutas, A. K. Tsakalidis, D. Tsoumakos, and G. Tzimas, “Efficient Multidimensional AkNN Query Processing in the Cloud,” in Database and Expert Systems Applications – 25th International Conference, DEXA 2014, Munich, Germany, September 1-4, 2014. Proceedings, Part I, 2014, vol. 8644, pp. 477–491. doi: 10.1007/978-3-319-10073-9\_41.

Z.-M. Ioannou, N. Nodarakis, S. Sioutas, A. K. Tsakalidis, and G. Tzimas, “Mining Biological Data on the Cloud – A MapReduce Approach,” in Artificial Intelligence Applications and Innovations – AIAI 2014 Workshops: CoPA, MHDW, IIVC, and MT4BD, Rhodes, Greece, September 19-21, 2014. Proceedings, 2014, vol. 437, pp. 96–105. doi: 10.1007/978-3-662-44722-2\_11.

  1. Giannakouris-Salalidis, A. Plerou, and S. Sioutas, “CSMR: A Scalable Algorithm for Text Clustering with Cosine Similarity and MapReduce,” in Artificial Intelligence Applications and Innovations – AIAI 2014 Workshops: CoPA, MHDW, IIVC, and MT4BD, Rhodes, Greece, September 19-21, 2014. Proceedings, 2014, vol. 437, pp. 211–220. doi: 10.1007/978-3-662-44722-2\_23.
  2. Magkos, P. Kotzanikolaou, M. Magioladitis, S. Sioutas, and V. S. Verykios, “Towards Secure and Practical Location Privacy through Private Equality Testing,” in Privacy in Statistical Databases – UNESCO Chair in Data Privacy, International Conference, PSD 2014, Ibiza, Spain, September 17-19, 2014. Proceedings, 2014, vol. 8744, pp. 312–325. doi: 10.1007/978-3-319-11257-2\_24.
  3. S. Iliadis, I. Maglogiannis, H. Papadopoulos, S. Sioutas, and C. Makris, Eds., Artificial Intelligence Applications and Innovations – AIAI 2014 Workshops: CoPA, MHDW, IIVC, and MT4BD, Rhodes, Greece, September 19-21, 2014. Proceedings, vol. 437. Springer, 2014. doi: 10.1007/978-3-662-44722-2.
  4. Tsoumakos, I. Konstantinou, C. Boumpouka, S. Sioutas, and N. Koziris, “Automated, Elastic Resource Provisioning for NoSQL Clusters Using TIRAMOLA,” in 13th IEEE/ACM International Symposium on Cluster, Cloud, and Grid Computing, CCGrid 2013, Delft, Netherlands, May 13-16, 2013, 2013, pp. 34–41. doi: 10.1109/CCGRID.2013.45.
  5. Gkantouna, S. Sioutas, G. Sourla, A. K. Tsakalidis, and G. Tzimas, “Mining the Conceptual Model of Open Source CMS Using a Reverse Engineering Approach,” in Engineering Applications of Neural Networks – 14th International Conference, EANN 2013, Halkidiki, Greece, September 13-16, 2013 Proceedings, Part II, 2013, vol. 384, pp. 119–128. doi: 10.1007/978-3-642-41016-1\_13.
  6. Spathis, T. Mouratidis, S. Sioutas, and A. K. Tsakalidis, “Glocal News: An Attempt to Visualize the Discovery of Localized Top Local News, Globally,” in Advances in Conceptual Modeling – ER 2013 Workshops, LSAWM, MoBiD, RIGiM, SeCoGIS, WISM, DaSeM, SCME, and PhD Symposium, Hong Kong, China, November 11-13, 2013, Revised Selected Papers, 2013, vol. 8697, pp. 1–6. doi: 10.1007/978-3-319-14139-8\_1.
  7. Sakkopoulos, M. Paschou, A. K. Tsakalidis, S. Sioutas, and V. S. Verykios, “A Novel Mobile Framework for Anonymity Techniques and Services Research,” in 2013 IEEE 14th International Conference on Mobile Data Management, Milan, Italy, June 3-6, 2013 – Volume 1, 2013, pp. 353–355. doi: 10.1109/MDM.2013.55.
  8. Faliagka, I. Karydis, M. Rigou, S. Sioutas, A. K. Tsakalidis, and G. Tzimas, “Taxonomy Development and Its Impact on a Self-learning e-Recruitment System,” in Artificial Intelligence Applications and Innovations – 8th IFIP WG 12.5 International Conference, AIAI 2012, Halkidiki, Greece, September 27-30, 2012, Proceedings, Part I, 2012, vol. 381, pp. 164–174. doi: 10.1007/978-3-642-33409-2\_18.
  9. Karydis, M. Avlonitis, and S. Sioutas, “Collective Intelligence in Video User’s Activity,” in Artificial Intelligence Applications and Innovations – AIAI 2012 International Workshops: AIAB, AIeIA, CISE, COPA, IIVC, ISQL, MHDW, and WADTMB, Halkidiki, Greece, September 27-30, 2012, Proceedings, Part II, 2012, vol. 382, pp. 490–499. doi: 10.1007/978-3-642-33412-2\_50.
  10. Sioutas, A. Panaretos, I. Karydis, and D. Tsoumakos, “SART: dynamic P2P query processing in sensor networks with probabilistic guarantees,” in Proceedings of the ACM Symposium on Applied Computing, SAC 2012, Riva, Trento, Italy, March 26-30, 2012, 2012, pp. 847–852. doi: 10.1145/2245276.2245442.
  11. Sakkopoulos, A. Panaretos, S. Sioutas, D. Tsoumakos, G. Papaloukopoulos, and A. Saltou, “DREAM: a distributed fRamework for customized dEployment of a vAriety of indexing engines over million-node overlays,” in Proceedings of the ACM Symposium on Applied Computing, SAC 2012, Riva, Trento, Italy, March 26-30, 2012, 2012, pp. 853–858. doi: 10.1145/2245276.2245443.
  12. Konstantinou, E. Angelou, D. Tsoumakos, C. Boumpouka, N. Koziris, and S. Sioutas, “TIRAMOLA: elastic nosql provisioning through a cloud management platform,” in Proceedings of the ACM SIGMOD International Conference on Management of Data, SIGMOD 2012, Scottsdale, AZ, USA, May 20-24, 2012, 2012, pp. 725–728. doi: 10.1145/2213836.2213943.
  13. S. Brodal, K. Tsakalidis, S. Sioutas, and K. Tsichlas, “Fully persistent B-trees,” in Proceedings of the Twenty-Third Annual ACM-SIAM Symposium on Discrete Algorithms, SODA 2012, Kyoto, Japan, January 17-19, 2012, 2012, pp. 602–614. doi: 10.1137/1.9781611973099.51.
  14. S. Iliadis, I. Maglogiannis, H. Papadopoulos, K. D. Karatzas, and S. Sioutas, Eds., Artificial Intelligence Applications and Innovations – AIAI 2012 International Workshops: AIAB, AIeIA, CISE, COPA, IIVC, ISQL, MHDW, and WADTMB, Halkidiki, Greece, September 27-30, 2012, Proceedings, Part II, vol. 382. Springer, 2012. doi: 10.1007/978-3-642-33412-2.
  15. Sioutas, K. Tsichlas, I. Karydis, Y. Manolopoulos, and Y. Theodoridis, “NEFOS: Rapid Cache-Aware Range Query Processing with Probabilistic Guarantees,” in Database and Expert Systems Applications – 22nd International Conference, DEXA 2011, Toulouse, France, August 29 – September 2, 2011. Proceedings, Part I, 2011, vol. 6860, pp. 62–77. doi: 10.1007/978-3-642-23088-2\_5.
  16. K. Tsolis, S. Sioutas, A. Panaretos, I. Karydis, and K. Oikonomou, “Decentralized digital content exchange and copyright protection via P2P networks,” in Proceedings of the 16th IEEE Symposium on Computers and Communications, ISCC 2011, Kerkyra, Corfu, Greece, June 28 – July 1, 2011, 2011, pp. 1056–1061. doi: 10.1109/ISCC.2011.5983982.
  17. Oikonomou, A. Loukidou, and S. Sioutas, “A study of a time-graph friendship model,” in 12th IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks, WOWMOM 2011, Lucca, Italy, 20-24 June, 2011, 2011, pp. 1–6. doi: 10.1109/WOWMOM.2011.5986150
  18. C. Kaporis, A. N. Papadopoulos, S. Sioutas, K. Tsakalidis, and K. Tsichlas, “Efficient processing of 3-sided range queries with probabilistic guarantees,” in Database Theory – ICDT 2010, 13th International Conference, Lausanne, Switzerland, March 23-25, 2010, Proceedings, 2010, pp. 34–43. doi: 10.1145/1804669.1804676.
  19. S. Brodal, S. Sioutas, K. Tsichlas, and C. D. Zaroliagis, “D\(^\mbox2\)-Tree: A New Overlay with Deterministic Bounds,” in Algorithms and Computation – 21st International Symposium, ISAAC 2010, Jeju Island, Korea, December 15-17, 2010, Proceedings, Part II, 2010, vol. 6507, pp. 1–12. doi: 10.1007/978-3-642-17514-5\_1.
  20. Xergias, N. I. Passas, S. Sioutas, and L. F. Merakos, “A joint traffic scheduling and slot allocation algorithm for mobile WiMAX networks,” in Proceedings of the IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2010, 26-29 September 2010, Istanbul, Turkey, 2010, pp. 1793–1798. doi: 10.1109/PIMRC.2010.5671639.
  21. Sioutas, G. Papaloukopoulos, E. Sakkopoulos, K. Tsichlas, Y. Manolopoulos, and P. Triantafillou, “Brief announcement: ART–sub-logarithmic decentralized range query processing with probabilistic guarantees,” in Proceedings of the 29th Annual ACM Symposium on Principles of Distributed Computing, PODC 2010, Zurich, Switzerland, July 25-28, 2010, 2010, pp. 118–119. doi: 10.1145/1835698.1835728.
  22. Sioutas, E. Magkos, I. Karydis, and V. S. Verykios, “Uncertainty for Anonymity and 2-Dimensional Range Query Distortion,” in Privacy in Statistical Databases – UNESCO Chair in Data Privacy, International Conference, PSD 2010, Corfu, Greece, September 22-24, 2010. Proceedings, 2010, vol. 6344, pp. 85–96. doi: 10.1007/978-3-642-15838-4\_8.
  23. Magkos, P. Kotzanikolaou, S. Sioutas, and K. Oikonomou, “A distributed privacy-preserving scheme for location-based queries,” in 11th IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks, WOWMOM 2010, Montreal, QC, Canada, 14-17 June, 2010, 2010, pp. 1–6. doi: 10.1109/WOWMOM.2010.5534928.
  24. Lagogiannis, N. A. Lorentzos, S. Sioutas, and E. Theodoridis, “A time efficient indexing scheme for complex spatiotemporal retrieval,” SIGMOD Rec., vol. 38, no. 3, pp. 11–16, 2009, doi: 10.1145/1815933.1815936.
  25. Sioutas, G. Papaloukopoulos, E. Sakkopoulos, K. Tsichlas, and Y. Manolopoulos, “A novel distributed P2P simulator architecture: D-P2P-sim,” in Proceedings of the 18th ACM Conference on Information and Knowledge Management, CIKM 2009, Hong Kong, China, November 2-6, 2009, 2009, pp. 2069–2070. doi: 10.1145/1645953.1646305.
  26. Tsolis, S. Sioutas, and T. S. Papatheodorou, “Digital watermarking in peer to peer networks,” in 16th International Conference on Digital Signal Processing, DSP 2009, Santorini, Greece, July 5-7, 2009, 2009, pp. 1–5. doi: 10.1109/ICDSP.2009.5201108.
  27. S. Brodal, A. C. Kaporis, S. Sioutas, K. Tsakalidis, and K. Tsichlas, “Dynamic 3-Sided Planar Range Queries with Expected Doubly Logarithmic Time,” in Algorithms and Computation, 20th International Symposium, ISAAC 2009, Honolulu, Hawaii, USA, December 16-18, 2009. Proceedings, 2009, vol. 5878, pp. 193–202. doi: 10.1007/978-3-642-10631-6\_21.
  28. Sioutas, G. Papaloukopoulos, K. Tsichlas, and Y. Manolopoulos, “An experimental performance comparison for indexing mobile objects on the plane,” in MEDES ’09: International ACM Conference on Management of Emergent Digital EcoSystems, Lyon, France, October 27-30, 2009, 2009, pp. 210–217. doi: 10.1145/1643823.1643863.
  29. Sakkopoulos, P. Adamopoulou, A. K. Tsakalidis, S. Sioutas, and Y. Manolopoulos, “Personalized selection of web services for mobile environments: the m-scroutz solution,” in MEDES ’09: International ACM Conference on Management of Emergent Digital EcoSystems, Lyon, France, October 27-30, 2009, 2009, pp. 254–260. doi: 10.1145/1643823.1643870.
  30. Sioutas, K. Oikonomou, G. Papaloukopoulos, M. Xenos, and Y. Manolopoulos, “Building an efficient P2P overlay for energy-level queries in sensor networks,” in MEDES ’09: International ACM Conference on Management of Emergent Digital EcoSystems, Lyon, France, October 27-30, 2009, 2009, pp. 361–368. doi: 10.1145/1643823.1643890.
  31. E. Livieris, M. S. Apostolopoulou, D. G. Sotiropoulos, S. Sioutas, and P. E. Pintelas, “Classification of Large Biomedical Data Using ANNs Based on BFGS Method,” in PCI 2009, 13th Panhellenic Conference on Informatics, 10-12 September 2009, Corfu, Greece, 2009, pp. 87–91. doi: 10.1109/PCI.2009.32.
  32. K. Tsolis, E. Georgatos, and S. Sioutas, “The Use of Peer-to-Peer Networks in Copyright Protection,” in PCI 2009, 13th Panhellenic Conference on Informatics, 10-12 September 2009, Corfu, Greece, 2009, pp. 97–101. doi: 10.1109/PCI.2009.48.
  33. Chrissikopoulos, G. Papaloukopoulos, E. Sakkopoulos, and S. Sioutas, “Design and Implementation Aspects of a Novel Java P2P Simulator with GUI,” in Panhellenic Conference on Informatics, PCI 2008, August 28-30, 2008, Samos Island, Greece, Proceedings, 2008, pp. 83–87. doi: 10.1109/PCI.2008.52.
  34. Sioutas, K. Tsakalidis, K. Tsichlas, C. Makris, and Y. Manolopoulos, “Indexing Mobile Objects on the Plane Revisited,” in Advances in Databases and Information Systems, 11th East European Conference, ADBIS 2007, Varna, Bulgaria, September 29-October 3, 2007, Proceedings, 2007, vol. 4690, pp. 189–204. doi: 10.1007/978-3-540-75185-4\_15.
  35. C. Kaporis, C. Makris, S. Sioutas, A. K. Tsakalidis, K. Tsichlas, and C. D. Zaroliagis, “Dynamic Interpolation Search Revisited,” in Automata, Languages and Programming, 33rd International Colloquium, ICALP 2006, Venice, Italy, July 10-14, 2006, Proceedings, Part I, 2006, vol. 4051, pp. 382–394. doi: 10.1007/11786986\_34.
  36. K. Tsolis et al., “Watermarking and Digital Rights Management – A Pilot DRM System Implementation and Technical Guidelines to Cultural Digitization Projects,” in 37th CIPA International Workshop dedicated on e-Documentation and Standardisation in Cultural Heritage, incorporating the 7th International Symposium on Virtual Reality, Archaeology and Intelligent Cultural Heritage, the 4th Eurographics Workshop on Graphics and Cultural Heritage, and the 1st EuroMed Conference on IT in Cultural Heritage, CIPA/VAST/GCH/EuroMed 2006, Nicosia, Cyprus, October 30 – November 4, 2006, 2006, pp. 117–121. doi: 10.2312/VAST/VAST06/117-121.
  37. C. Kaporis et al., “ISB-Tree: A New Indexing Scheme with Efficient Expected Behaviour,” in Algorithms and Computation, 16th International Symposium, ISAAC 2005, Sanya, Hainan, China, December 19-21, 2005, Proceedings, 2005, vol. 3827, pp. 318–327. doi: 10.1007/11602613\_33.
  38. Makris, E. Sakkopoulos, S. Sioutas, P. Triantafillou, A. K. Tsakalidis, and B. Vassiliadis, “NIPPERS: Network of InterPolated PeERS for Web Service Discovery,” in International Symposium on Information Technology: Coding and Computing (IEEE ITCC 2005), Volume 2, 4-6 April 2005, Las Vegas, Nevada, USA, 2005, pp. 193–198. doi: 10.1109/ITCC.2005.211.
  39. Sioutas, Y. Panagis, E. Theodoridis, and A. K. Tsakalidis, “One-Dimensional Finger Searching in RAM Model Revisited,” in Advances in Informatics, 10th Panhellenic Conference on Informatics, PCI 2005, Volos, Greece, November 11-13, 2005, Proceedings, 2005, vol. 3746, pp. 134–144. doi: 10.1007/11573036\_13.
  40. Vassiliadis, K. Giotopoulos, K. Votis, S. Sioutas, N. Bogonikolos, and S. Likothanassis, “Application Service Provision through the Grid: Business models and Architectures,” in International Conference on Information Technology: Coding and Computing (IEEE ITCC’04), Volume 1, April 5-7, 2004, Las Vegas, Nevada, USA, 2004, pp. 367–371. doi: 10.1109/ITCC.2004.1286481.
  41. C. Kaporis, C. Makris, S. Sioutas, A. K. Tsakalidis, K. Tsichlas, and C. D. Zaroliagis, “Improved Bounds for Finger Search on a RAM,” in Algorithms – ESA 2003, 11th Annual European Symposium, Budapest, Hungary, September 16-19, 2003, Proceedings, 2003, vol. 2832, pp. 325–336. doi: 10.1007/978-3-540-39658-1\_31.
  42. S. Iliopoulos, C. Makris, S. Sioutas, A. K. Tsakalidis, and K. Tsichlas, “Identifying Occurrences of Maximal Pairs in Multiple Strings,” in Combinatorial Pattern Matching, 13th Annual Symposium, CPM 2002, Fukuoka, Japan, July 3-5, 2002, Proceedings, 2002, vol. 2373, pp. 133–143. doi: 10.1007/3-540-45452-7\_12.
  43. Kitsios, C. Makris, S. Sioutas, A. K. Tsakalidis, J. Tsaknakis, and B. Vassiliadis, “2-D Spatial Indexing Scheme in Optimal Time,” in Current Issues in Databases and Information Systems, East-European Conference on Advances in Databases and Information Systems Held Jointly with International Conference on Database Systems for Advanced Applications, ADBIS-DASFAA 2000, Prague, Czech Republic, September 5-8, 2000, Proceedings, 2000, vol. 1884, pp. 107–116. doi: 10.1007/3-540-44472-6\_9.
  44. Derekenaris, J. D. Garofalakis, C. Makris, J. Prentzas, S. Sioutas, and A. K. Tsakalidis, “An Information System for the Effective Management of Ambulances,” in 13th IEEE Symposium on Computer-Based Medical Systems (CBMS 2000), 23-24 June 2000, Houston, TX, USA, 2000, pp. 269–274. doi: 10.1109/CBMS.2000.856910.
  45. Bovilas et al., “The Eurydices System: Objectives and Services,” in Proceedings of WebNet 2000 – World Conference on the WWW and Internet, San Antonio, Texas, USA, October 30 – November 4, 2000, 2000, pp. 63–68.
  46. Sioutas, A. K. Tsakalidis, J. Tsaknakis, and B. Vassiliadis, “An Index Structure for the Support of Partial and Exact Match Queries in Database Systems,” in Advances in Databases and Information Systems, Third East European Conference, ADBIS’99, Maribor, Slovenia, September 13-16, 1999, Proceedings of Short Papers, 1999, pp. 24–30.
  47. Delis, C. Makris, and S. Sioutas, “A Provably Efficient Computational Model for Approximate Spatiotemporal Retrieval,” in ACM-GIS ’99, Proceedings of the 7th International Symposium on Advances in Geographic Information Systems, November 2-6, 1999, Kansas City, USA, 1999, pp. 40–46. doi: 10.1145/320134.320145.

 

Συγγραφή Βιβλίων

Β.Βασιλειάδης, Σ.Σιούτας “Γραφικά Η/Υ”, Εκδόσεις Ελληνικού Ανοικτού Πανεπιστημίου, ISBN: 960-538-569-4.

 

Lambros Drossos, Spyros Sioutas, Dimitrios Tsolis, Theodore Papatheodorou, “Digital Rights Management for E-Commerce Systems”, Idea Group Publishing, Information Science Publishing, IRM Press, Cyber Tech Publishing and Idea Group Reference imprints, ISBN: 978-1-60566-118-6.

 

Vassilios Chrissikopoulos, Nikolaos Alexandris, Christos Douligeris and Spyros Sioutas “PCI 2009: Proceedings by IEEE Computer Society”, ISBN 978-0-7695-3788-7, Book Editing.

 

Lazaros S. Iliadis, Ilias Maglogiannis, Harris Papadopoulos, Kostas Karatzas, Spyros Sioutas: Artificial Intelligence Applications and Innovations – AIAI 2012 International Workshops: AIAB, AIeIA, CISE, COPA, IIVC, ISQL, MHDW, and WADTMB, Halkidiki, Greece, September 27-30, 2012, Proceedings, Part II Springer 2012, Book Editing.

 

Lazaros S. Iliadis, Ilias Maglogiannis, Harris Papadopoulos, Spyros Sioutas, Christos Makris: Artificial Intelligence Applications and Innovations – AIAI 2014 Workshops: CoPA, MHDW, IIVC, and MT4BD, Rhodes, Greece, September 19-21, 2014. Proceedings. IFIP Advances in Information and Communication Technology 437, Springer 2014, ISBN 978-3-662-44721-5, Book Editing.

 

Σ.Σιούτας, Γ. Τζήμας και Ι. Καρύδης «Σύγχρονες Μέθοδοι Προγραμματισμού», Μεταπτυχιακή Εξειδίκευση στα Πληροφοριακά Συστήματα, ΠΛΣ 60, Εκδόσεις Ελληνικού Ανοικτού Πανεπιστημίου (Ε.Α.Π.), ISBN: 978-960-538-982-6.

 

Σ.Σιούτας «Αλγόριθμοι και Πολυπλοκότητα», Μεταπτυχιακή Εξειδίκευση στα Πληροφοριακά Συστήματα, ΠΛΣ 50 (Βασικές Εξειδικεύσεις σε Θεωρία και Λογισμικό), Εκδόσεις Ελληνικού Ανοικτού Πανεπιστημίου (Ε.Α.Π.), ISBN: 978-960-536-007-X.

 

Ioannis Karydis, Spyros Sioutas, Peter Triantafillou, Dimitrios Tsoumakos: “Algorithmic Aspects of Cloud Computing – First International Workshop, ALGOCLOUD 2015, Patras, Greece, September 14-15, 2015”. Revised Selected Papers. Lecture Notes in Computer Science 9511, Springer 2016, ISBN 978-3-319-29918-1, Book Editing.

 

 

Κριτική Ανάγνωση (editing) στο πλαίσιο της Πρόσκλησης 1 – «Επιστήμες Μηχανικών και Πληροφορική» – Τίτλος Συγγράμματος / Κωδικός: ΕΙΣΑΓΩΓΗ ΣΤΗN ΑΝΑΚΤΗΣΗ ΚΑΙ ΕΞΟΡΥΞΗ ΜΟΥΣΙΚΗΣ ΠΛΗΡΟΦΟΡΙΑΣ / 1286.

 

Κριτική Ανάγνωση (editing) στο πλαίσιο της Πρόσκλησης 1 – «Επιστήμες Μηχανικών και Πληροφορική» – Τίτλος Συγγράμματος / Κωδικός: ΣΧΕΔΙΑΣΗ ΚΑΙ ΑΝΑΛΥΣΗ ΑΛΓΟΡΙΘΜΩΝ / 4410.

 

Κριτική Ανάγνωση (editing) στο πλαίσιο της Πρόσκλησης 1 – «Επιστήμες Μηχανικών και Πληροφορική» – Τίτλος Συγγράμματος / Κωδικός: ΠΡΟΣΤΑΣΙΑ ΚΑΙ ΔΙΑΧΕΙΡΙΣΗ ΤΗΣ ΠΝΕΥΜΑΤΙΚΗΣ ΙΔΙΟΚΤΗΣΙΑΣ ΨΗΦΙΑΚΟΥ ΠΕΡΙΕΧΟΜΕΝΟΥ ΣΤΟ ΔΙΑΔΙΚΤΥΟ ΚΑΙ ΤΑ ΣΥΓΧΡΟΝΑ ΔΙΚΤΥΑ / 9760.

 

Κεφάλαια σε Συλλογικούς Τόμους

Derekenaris G., Garofalakis J., Makris C., Prentzas J., Sioutas S., Tsakalidis A: book chapter: “Integrating GIS, GPS and GSM Technologies”, GIS on Environmental Management, Pondicherry University Publications, Main Author: S.A. Abbasi Senior Professor, Director, Center for Pollution Control and Energy Technology, Kalapet, Pondicherry 605 014, India, 2003.

 

  1. Makris, Y. Panagis, K. Perdikuri, S. Sioutas, E. Theodoridis, A. Tsakalidis and K. Tsichlas “New Upper Bounds on Various String Manipulation Problems”. In Text in Algorithms vol. 2: String Algorithmics, eds. C. Iliopoulos and T. Lecroq, King’s College Publications, ISBN 1-904987-0-2-8, pp. 171-193, 2004.
  2. Panagis, E. Sakkopoulos, S. Sioutas, A. Tsakalidis “Web Service Integration and Management Strategies for Large Scale Datasets”, Database Modeling for Industrial Data Management: Emerging Technologies and Applications – ISBN 159140685-4, IGP, IGI Global Disseminator of Knowledge, pp. 217-243, 2006.

G.Lagogiannis, Ch. Makris, Y. Panagis, E. Theodoridis and S. Sioutas “Indexing Techniques for Spatio-Temporal Databases”, Information Science and Technology, IGI Global Disseminator of Knowledge, pp.1-6, 2006.

D.Tsolis and S.Sioutas “Digital Rights Management in Cultural Peer to Peer Networks”:Handbook of Research on Technologies and Cultural Heritage: Applications and Environments  edited by Dr. Georgios Styliaras, Dimitrios Koukopoulos and Fotis Lazarinis, IGI Global Disseminator of Knowledge, pp 119 – 140, 2011.

 

Markos Avlonitis, Ioannis Karydis, Konstantinos Chorianopoulos, Spyros Sioutas: “Treating collective intelligence in online media”, Semantic Multimedia Analysis and Processing edited by Spyrou, Iakovidis and Mylonas, Taylor & Francis, June 23, 2014 by CRC Press, http://www.crcpress.com/product/isbn/9781466575493.

 

Makris, D., I. Karydis, Sioutas, S.: “Automatic Melodic Harmonization: An overview, challenges and future directions”, chapter in book “Trends in Music Information Seeking, Behavior, and Retrieval for Creativity”, IGI Global, doi:10.4018/978-1-5225-0270-8, 2016.

 

Διδακτική Εμπειρία

  • Βάσεις Δεδομένων Ι
  • Βάσεις Δεδομένων ΙΙ
  • Δομές Δεδομένων
  • Πολυδιάστατες Δομές Δεδομένων και Υπολογιστική Γεωμετρία
  • Αντικειμενοστραφής Προγραμματισμός (C++, Java)
  • Διαδικαστικός Προγραμματισμός (C)
  • Τεχνολογία Λογισμικού
  • Λειτουργικά Συστήματα
  • Βασικές Αρχές Γλωσσών Προγραμματισμού και Μεταφραστές
  • Συστήματα Λογισμικού Διαχείρισης και Ανάλυσης Δεδομένων Μεγάλου όγκου
  • Αποκεντρωμένα Συστήματα Διαχείρισης Δεδομένων Μεγάλου όγκου και Λήψης Αποφάσεων
  • Διαχείριση Έργων Πληροφορικής
  • «Τεχνολογίες και Συστήματα Ευρυζωνικών Εφαρμογών και Υπηρεσιών (Technologies and Infrastructures for Broadband Applications and Services for Broadband Applications and Services)

Επαγγελματική Εμπειρία

  • Απέκτησα το Δίπλωμα από το Τμήμα Μηχανικών Η/Υ και Πληροφορικής του Πανεπιστημίου Πατρών το 1997. Ο Τίτλος της Διπλωματικής εργασίας ήταν: “Multimedia Kiosks και σύνδεση με κατανεμημένες βάσεις δεδομένων” με επιβλέποντα τον Καθηγητή κ. Α. Τσακαλίδη.
  • Στη συνέχεια, πραγματοποίησα μεταπτυχιακές σπουδές και το 2000 απέκτησα Μεταπτυχιακό Δίπλωμα Ειδίκευσης (Μ.Δ.Ε.) στην «Επιστήμη και Τεχνολογία των Υπολογιστών» από το Τμήμα Μηχανικών Η/Υ και Πληροφορικής της Πολυτεχνικής Σχολής του Πανεπιστημίου Πατρών. Ο τίτλος της μεταπτυχιακής διπλωματικής εργασίας ήταν: “Τεχνικές εξάλειψης κατανεμημένης πολυπλοκότητας και εφαρμογή τους στη σχεδίαση persistent δομών δεδομένων με χρήση στην υλοποίηση αντικειμενοστραφών γλωσσών προγραμματισμού” με επιβλέποντα τον Καθηγητή κ. Α. Τσακαλίδη.
  • Το 2002, αναγορεύτηκα σε διδάκτωρ του Τμήματος Μηχανικών Η/Υ και Πληροφορικής της Πολυτεχνικής Σχολής του Πανεπιστημίου Πατρών, με τίτλο διδακτορικής διατριβής «Αποτελεσματικοί αλγόριθμοι και βελτιωμένες τεχνικές αναζήτησης χωρικής, χρονικής και χώρο-χρονικής πληροφορίας» με επιβλέποντα τον Καθηγητή κ. Α. Τσακαλίδη.
  • Από το 1998 έως και το 2002 απασχολήθηκα ως Μηχανικός Η/Υ και Πληροφορικής σε πληθώρα αναπτυξιακών και ερευνητικών έργων σε δημόσιους και ιδιωτικούς φορείς.
  • Το καλοκαίρι του 2002, επιλέχθηκα μετά από διαδικασία κρίσης να παρακολουθήσω ως Μεταδιδακτορικός Ερευνητής (Postdoc Researcher) το πρόγραμμα με τίτλο “massive data sets” στο Τμήμα BRICS (Basic Research in Computer Science) του Πανεπιστημίου του Aarhus, στη Δανία.  Ήμουν επισκέπτης Ερευνητής στο Kings College, του Πανεπιστημίου του Λονδίνου (research domain: String Algorithmics and I/O complexity), τον Απρίλιο του 2005. Ήμουν επίσης επισκέπτης Ερευνητής στο ινστιτούτο MADALGO (Massive Data ALGOrithmics), του Πανεπιστημίου του Aarhus στη Δανία όπου έδωσα ομιλία μετά από πρόσκληση με τίτλο: “Deterministic Data Structures over P2P Networks”, τον Δεκέμβριο του 2008.
  • Από το 2002 έως τον Ιούλιο του 2007 εργάστηκα ως Π.Δ. 407/80 και ως συμβασιούχος ωρομίσθιος καθηγητής σε ΑΕΙ και ΤΕΙ καθώς και ως ερευνητής σε ερευνητικά προγράμματα του EAITY (EM5).
  • Το 2007 διορίστηκα Επίκουρος Καθηγητής στο Τμήμα Πληροφορικής του Ιονίου Πανεπιστημίου, στο γνωστικό αντικείμενο «Βάσεις Δεδομένων» (ΦΕΚ 640/17-08-2007).
  • Το 2011 μονιμοποιήθηκα στη βαθμίδα του Επίκουρου Καθηγητή στο γνωστικό αντικείμενο «Βάσεις Δεδομένων» (ΦΕΚ 108/2-3-2011).
  • Στις 4/12/2013 εξελίχθηκα στη βαθμίδα του Αναπληρωτή Καθηγητή στο γνωστικό αντικείμενο «Δομές και Βάσεις Δεδομένων» και διορίστηκα 5 μήνες αργότερα με το ΦΕΚ 461/26-4-2013.
  • Το διάστημα 2013-2017 διατέλεσα Αναπληρωτής Πρύτανη στην Επιτροπή Ερευνών (ΕΛΚΕ) του Ιονίου Πανεπιστημίου, Διευθυντής στο θεσμοθετημένο εργαστήριο «Πληροφοριακών Συστημάτων και Βάσεων Δεδομένων» του Τμήματος Πληροφορικής του Ιονίου Πανεπιστημίου και Επιστημονικός συνεργάτης στο εργαστήριο πολυμέσων, γραφικών και GIS (mmlab) του τμήματος μηχανικών Η/Υ και Πληροφορικής του Πανεπιστημίου Πατρών.
  • Το διάστημα 2007-σήμερα διατέλεσα Σύμβουλος Καθηγητής (Σ.Ε.Π.) στο Ε.Α.Π. (ΠΛΗ11/ΠΛΣ50).
  • Στις 24/01/2018 εκλέχθηκα στη βαθμίδα του Καθηγητή στο γνωστικό αντικείμενο «Δομές Δεδομένων και Συστήματα Λογισμικού για Διαχείριση Μεγάλου Όγκου Δεδομένων», στην Πολυτεχνική Σχολή του Πανεπιστημίου Πατρών, στο Τμήμα Μηχανικών Η/Υ & Πληροφορικής και διορίστηκα 7 μήνες αργότερα με το ΦΕΚ Τεύχος Γ’ 983/04.09.2018.
  • Το διάστημα 2021-σήμερα διατέλεσα Διευθυντής του εργαστηρίου Πληροφοριακών Συστημάτων και Τεχνητής Νοημοσύνης του τομέα λογικού στο τμήμα μηχανικών Η/Υ και Πληροφορικής, της πολυτεχνικής σχολής του Πανεπιστημίου Πατρών.
  • Από το διορισμό μου στην τριτοβάθμια εκπαίδευση και μετά έχω συμμετάσχει σε πληθώρα Επιτροπών (Επιτροπή Προγράμματος Προπτυχιακών Σπουδών, Επιτροπή Επιλογής Μεταπτυχιακών Φοιτητών, Συντονιστική Επιτροπή Μεταπτυχιακών Σπουδών, Συντονιστής Εσωτερικής και Εξωτερικής Αξιολόγησης του Τμήματος, Επιτροπή Πρακτικής Άσκησης, Αναπληρωτής Πρόεδρος του Τμήματος, Αναπληρωτής Πρύτανη στην Επιτροπή Ερευνών (ΕΛΚΕ) του Ιονίου Πανεπιστημίου κ.τ.λ..), έχω συμμετάσχει στη συγγραφή πληθώρας τεχνικών δελτίων που αφορούν προσκλήσεις αναπτυξιακών και ερευνητικών προγραμμάτων, εγχώριων και ευρωπαϊκών, έχω διατελέσει (και διατελώ) Επιστημονικός Υπεύθυνος σε πληθώρα ΕΣΠΑ 2007-2013 και INTERREG 2014-2020 προγραμμάτων καθώς και υπεύθυνος της ΚΕΟ του Παν/μίου σε πρόγραμμα ΘΑΛΗΣ, έχω διοργανώσει και συντονίσει πληθώρα Ελληνικών και Διεθνών ημερίδων και συνεδρίων. Πιο συγκεκριμένα ήμουν μεταξύ των πρωτεργατών της διοργάνωσης των ακολούθων: (1) “ACM Workshop on Peer to Peer and Service Oriented Hypermedia: Techniques and Systems” Sept. 2005, Salzburg, Austria (2) “ACM International Workshop on Architectures, Models and Infrastructures to Generate Semantics in Peer to Peer and Hypermedia Systems”, August 2006, Odense, Denmark (3) Πανελλήνιο Συνέδριο Πληροφορικής (IEEE PCI 2009), September 2009, Corfu, Greece, (4) AIAI / EANN 2011, September 2011, Corfu, Greece, (5) Workshop Chair στο Mining Humanistic Data Workshop από το 2012 έως και το 2025 (LNCS series) και (5) Workshop Chair και Steering Committee Member στο ALGOCLOUD από το 2015 έως και το 2025 (LNCS series, Algorithmic Aspects of Cloud Computing).

Διοικητικές Θέσεις

Σε ΑΕΙ: Επιτροπή Προγράμματος Προπτυχιακών Σπουδών, Επιτροπή Επιλογής Μεταπτυχιακών Φοιτητών, Συντονιστική Επιτροπή Μεταπτυχιακών Σπουδών, Συντονιστής Εσωτερικής και Εξωτερικής Αξιολόγησης του Τμήματος, Επιτροπή Πρακτικής Άσκησης, Αναπληρωτής Πρόεδρος του Τμήματος, Αναπληρωτής Πρύτανη στην Επιτροπή Ερευνών (ΕΛΚΕ) του Ιονίου Πανεπιστημίου, Διευθυντής Θεσμοθετημένων Εργαστηρίων (στο ISD Lab (http://isdlab.di.ionio.gr) στο οποίο διατέλεσα Διευθυντής το χρονικό διάστημα 2006-2017, και διευθυντής στο εργαστήριο Πληροφοριακών Συστημάτων και Τεχνητής Νοημοσύνης (Information Systems and Artificial Intelligence Lab) στο ΤΜΗΥ&Π).

 

Συμμετοχή σε Ερευνητικά και Αναπτυξιακά Προγράμματα

Τίτλος Έργου Πηγή Χρηματοδότησης Περίοδος Ρόλος
“Hotel-auctions”: Creating Novel e-Auction Platforms for Hotels. ΕΣΠΑ 2007-2013. 01/01/2013-31/12/2015 Ε.Υ.
“Open Courses ”. Creating a new e-class+ platform in Greek Universities for supporting distance learning. ΕΣΠΑ 2007-2013.

 

 01/01/2013-31/12/2015 Ε.Υ.
“Cloud9: A multidisciplinary, holistic approach to internet-scale cloud computing”. ΕΣΠΑ 2007-2013

(THALES)

 01/01/2014-31/12/2017 Ερευνητής
“BORDER GUARDS: Creating Border Guards via GIS and Mobile GIS”. ΕΣΠΑ 2007-2013 (SYNERGASIA) 01/01/2013-31/12/2015 Ερευνητής
ADRIATIN INTERREG GR-IT 1/2014 – 3/2016 Ερευνητής
PACCINO IPA ADRITIC 1/2014 – 4/2016 Ερευνητής
BIG IPA ADRITIC 1/2014 – 12/2015 Ερευνητής
SMART BUILD INTERREG GR-IT 1/2013 – 12/2013. Ερευνητής
TRAMOOC HORIZON 2020 1/2015 – 12/2017.

 

 Ερευνητής
ILONET: Fostering capacities and networking of industrial liaison offices, exploitation of research results and business support. INTERREG Greece-Italy 2014-2020. 1/3/2018 – 31/12//2021 Ε.Υ.
TeleICCE – Promotion of Teleworking and Massive Open Online Course (MOOC) Training for Increased Cluster Competitiveness and Employment. INTERREG Greece-Italy 2014-2020. 1/3/2018 – 31/12/2021 Ε.Υ.
E-HORECA WANET – Efficient Hotel Restaurant & Catering Waste Network. INTERREG Greece-Italy 2014-2020. 1/3/2018 – 31/12/2021 Ε.Υ.
CYBEREMA: Experimental development of IoT energy measurement and control products on a coherent, independent platform of smart energy services

 

 EPAnEK 2014-2020, Operational Programme Competitiveness, Entrepreneurship Innovation, Co-financed by Greece and the European Union, 2020-2023. 1/3/2021 – 31/12/2023 Ερευνητής
GLASS: A trustable and interoperable decentralized solution for citizen-centric and cross-border e-Governance H2020 1/1/2018-31/12/2021 Ερευνητής
Fish-AI: Development of an intelligent system for diagnosis of fish diseases and treatment proposal” Senior Researcher

 

 ΕΣΠΑ 2014-2020. 1/4/21 – 31/12/23 Ερευνητής
HappyCruise : Integrated Information System for personalized information and Security in the Turism Industry”, EPAnEK 2014-2020

 

 EPAnEK 2014-2020, Operational Programme Competitiveness, Entrepreneurship Innovation, Co-financed by Greece and the European Union, 2020-2023. 2023 Ερευνητής

 

Άλλα Επιστημονικά Ενδιαφέροντα

  • Ιχνηλατική Εφοδιαστικής Αλυσίδας με Block Chain
  • Διαδίκτυο των Πραγμάτων (IoT)
  • Ευφυείς Πράκτορες (Agents’ Based Modeling)
  • Ψηφιακά Δίδυμα (Digital Twin)
  • Learning-Augmented Data Structures and Algorithms