Publications

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Polymerou, Evangelia, Despoina Chatzakou, and Athena Vakali. "EmoTube: A Sentiment Analysis Integrated Environment for Social Web Content." In WIMS, edited by Rajendra Akerkar, Nick Bassiliades, John Davies and Vadim Ermolayev, 20. ACM, 2014.PDF icon PDF (3.29 MB)
Petridou, Sophia G., Vassiliki A. Koutsonikola, Athena Vakali, and Georgios I. Papadimitriou. "A Divergence-Oriented Approach for Web Users Clustering." In ICCSA (2), edited by Marina L. Gavrilova, Osvaldo Gervasi, Vipin Kumar, Chih Jeng Kenne Tan, David Taniar, Antonio LaganĂ, Youngsong Mun and Hyunseung Choo, 1229-1238. Vol. 3981. Lecture Notes in Computer Science 3981. Springer, 2006.
Petridou, Sophia G., Vassiliki A. Koutsonikola, Athena Vakali, and Georgios I. Papadimitriou. "Time-Aware Web Users’ Clustering." IEEE Trans. Knowl. Data Eng. 20 (2008): 653-667.
Paparrizos, Ioannis K., Vassiliki A. Koutsonikola, Lefteris Angelis, and Athena Vakali. "Automatic extraction of structure, content and usage data statistics of web sites." In HT, edited by Mark H. Chignell and Elaine G. Toms, 301-302. ACM, 2010.PDF icon C77.pdf (643.99 KB)
Papadopoulos, Symeon, Christos Zigkolis, Stefanos Kapiris, Yiannis Kompatsiaris, and Athena Vakali. "ClustTour: city exploration by use of hybrid photo clustering." In ACM Multimedia, edited by Alberto Del Bimbo, Shih-Fu Chang and Arnold W. M. Smeulders, 1617-1620. ACM, 2010.
Papadopoulos, Symeon, Athena Vakali, and Yiannis Kompatsiaris. "Community Detection in Collaborative Tagging Systems." In Community-Built Databases, edited by Eric Pardede, 107-131. Springer, 2011.
Papadopoulos, Symeon, Christos Zigkolis, Giorgos Tolias, Yannis Kalantidis, Phivos Mylonas, Yiannis Kompatsiaris, and Athena Vakali. "Image clustering through community detection on hybrid image similarity graphs." In ICIP, 2353-2356. IEEE, 2010.PDF icon C76.pdf (431.52 KB)
Papadopoulos, Symeon, Christos Zigkolis, Yiannis Kompatsiaris, and Athena Vakali. "Cluster-Based Landmark and Event Detection for Tagged Photo Collections." IEEE MultiMedia 18 (2011): 52-63.PDF icon J46.pdf (882.09 KB)
Papadopoulos, Symeon, Athena Vakali, and Yiannis Kompatsiaris. "The Dynamics of Content Popularity in Social Media." IJDWM 6 (2010): 20-37.PDF icon J37.pdf (697.66 KB)
Papadopoulos, Symeon, Christos Zigkolis, Yiannis Kompatsiaris, and Athena Vakali. "CERTH @ MediaEval 2011 Social Event Detection Task." In MediaEval, edited by Martha Larson, Adam Rae, Claire-Helene Demarty, Christoph Kofler, Florian Metze, Raphaël Troncy, Vasileios Mezaris and Gareth J. F. Jones. Vol. 807. CEUR Workshop Proceedings 807. CEUR-WS.org, 2011.PDF icon C84.pdf (155.83 KB)
Papadopoulos, Symeon, Yiannis Kompatsiaris, and Athena Vakali. Leveraging Collective Intelligence through Community Detection in Tag Networks., 2009.PDF icon C63.pdf (318.01 KB)
Papadopoulos, Symeon, Christos Sagonas, Yiannis Kompatsiaris, and Athena Vakali. "Semi-supervised Concept Detection by Learning the Structure of Similarity Graphs." In MMM (1), edited by Shipeng Li, Abdulmotaleb El-Saddik, Meng Wang, Tao Mei, Nicu Sebe, Shuicheng Yan, Richang Hong and Cathal Gurrin, 1-12. Vol. 7732. Lecture Notes in Computer Science 7732. Springer, 2013.PDF icon PDF (533.63 KB)
Papadopoulos, Symeon, Yiannis Kompatsiaris, and Athena Vakali. "A graph-based clustering scheme for identifying related tags in folksonomies." In Proceedings of the 12th international conference on Data warehousing and knowledge discovery, 65-76. DaWaK’10. Berlin, Heidelberg: Springer-Verlag, 2010.PDF icon C75.pdf (213.91 KB)
Papadopoulos, Symeon, Christos Zigkolis, Stefanos Kapiris, Yiannis Kompatsiaris, and Athena Vakali. "City exploration by use of spatio-temporal analysis and clustering of user contributed photos." In ICMR, edited by Francesco G. B. De Natale, Alberto Del Bimbo, Alan Hanjalic, B. S. Manjunath and Shin’ichi Satoh, 65. ACM, 2011.
Papadimitriou, Georgios I., Athena Vakali, and Andreas S. Pomportsis. "A learning-automata-based controller for client/server systems." Neurocomputing 61 (2004): 381-394.
Pallis, George, Lefteris Angelis, and Athena Vakali. "Model-Based Cluster Analysis for Web Users Sessions." In ISMIS, edited by Mohand-Said Hacid, Neil V. Murray, Zbigniew W. Ras and Shusaku Tsumoto, 219-227. Vol. 3488. Lecture Notes in Computer Science 3488. Springer, 2005.
Pallis, George, and Athena Vakali. "Insight and Perspectives for Content Delivery Networks." Commun. ACM 49 (2006): 101-106.PDF icon PDF (182.83 KB)
Pallis, George, Konstantinos Stamos, Athena Vakali, Charilaos Thomos, and George Andreadis. "Integrating Caching Techniques in CDNs using a Classification Approach." IJBDCN 4 (2008): 1-12.PDF icon J40.pdf (555.22 KB)
Pallis, George, Konstantina Stoupa, and Athena Vakali. "Storage and Access Control Issues for XML Documents." In Encyclopedia of Information Science and Technology (V), edited by Mehdi Khosrow-Pour, 2616-2621. Idea Group, 2005.
Pallis, George, Konstantinos Stamos, Athena Vakali, Dimitrios Katsaros, Antonis Sidiropoulos, and Yannis Manolopoulos. "Replication Based on Objects Load under a Content Distribution Network." In ICDE Workshops, edited by Roger S. Barga and Xiaofang Zhou, 53. IEEE Computer Society, 2006.
Pallis, George, Athena Vakali, Konstantinos Stamos, Antonis Sidiropoulos, Dimitrios Katsaros, and Yannis Manolopoulos. "A Latency-Based Object Placement Approach in Content Distribution Networks." In LA-WEB, 140-147. IEEE Computer Society, 2005.
Pallis, George, Lefteris Angelis, and Athena Vakali. "Validation and interpretation of Web users’ sessions clusters." Inf. Process. Manage. 43 (2007): 1348-1367.
Pallis, George, Athena Vakali, Lefteris Angelis, and Mohand-Said Hacid. "A Study on Workload Characterization for a Web Proxy Server." In Applied Informatics, edited by M. H. Hamza, 779-784. IASTED/ACTA Press, 2003.
Pallis, George, Athena Vakali, and Eythimis Sidiropoulos. "FRES-CAR: An Adaptive Cache Replacement Policy." In WIRI, 74-81. IEEE Computer Society, 2005.PDF icon C42.pdf (327.32 KB)
Pallis, George, Athena Vakali, and Jaroslav Pokorny. "A clustering-based prefetching scheme on a Web cache environment." Computers & Electrical Engineering 34 (2008): 309-323.

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