Exploiting learning techniques for the acquisition of user stereotypes and communities, : Springer, 1999.
Knowledge-Driven Multimedia Information Extraction and Ontology Evolution, : Springer, 2011.
Learning to filter unsolicited commercial e-mail, : " DEMOKRITOS", National Center for Scientific Research, 2004.
"Enhancing ontological knowledge through ontology population and enrichment", Engineering knowledge in the age of the Semantic Web: Springer, pp. 144–156, 2004.
"Learning rules for large-vocabulary word sense disambiguation: a comparison of various classifiers", Natural Language Processing—NLP 2000: Springer, pp. 383–394, 2000.
"Learning user communities for improving the services of information providers", Research and Advanced Technology for Digital Libraries: Springer, pp. 367–383, 1998.
"On the need to bootstrap ontology learning with extraction grammar learning", Conceptual Structures: Common Semantics for Sharing Knowledge: Springer, pp. 119–135, 2005.
"PNS: A personalized news aggregator on the web", Intelligent interactive systems in knowledge-based environments: Springer, pp. 175–197, 2008.
"Clustering the Users of Large Web Sites into Communities.", ICML, pp. 719–726, 2000.
"Determining influential users with supervised random walks", Proceedings of the 24th International Conference on World Wide Web: ACM, 2015.
"Filtron: A learning-based anti-spam filter", PROCEEDINGS OF THE 1ST CONFERENCE ON EMAIL AND ANTI-SPAM. MOUNTAIN: Citeseer, 2004.
"From web usage statistics to web usage analysis", Systems, Man, and Cybernetics, 1999. IEEE SMC'99 Conference Proceedings. 1999 IEEE International Conference on, vol. 2: IEEE, pp. 159–164, 1999.
"Large-scale mining of usage data on web sites", AAAI Spring Symposium on Adaptive User Interfaces, pp. 92–97, 2000.
"Learning decision trees for named-entity recognition and classification", ECAI Workshop on Machine Learning for Information Extraction, 2000.
"Learning rules for large vocabulary word sense disambiguation", IJCAI, pp. 674–681, 1999.
"Machine learning for domain-adaptive word sense disambiguation", Proceedings of the Workshop on Adapting Lexical and Corpus Resources to Sublanguages and Applications, International Conference on Language Resources and Evaluation, Granada, Spain: Citeseer, 1998.
"PNS: Personalized multi-source news delivery", Knowledge-Based Intelligent Information and Engineering Systems: Springer, pp. 1152–1161, 2006.
"Predicting the evolution of communities in social networks", Proceedings of the 5th International Conference on Web Intelligence, Mining and Semantics: ACM, 2015.
"Predicting the Evolution of Communities with Online Inductive Logic Programming", Proceedings of 25th International Symposium on Temporal Representation and Reasoning (TIME), 2018.
"Spam filtering with naive bayes-which naive bayes?", CEAS, pp. 27–28, 2006.
"TL-PLSA: Transfer learning between domains with different classes", Data Mining (ICDM), 2013 IEEE 13th International Conference on: IEEE, pp. 419–427, 2013.
"Tweet Type, Location and Popularity: Case Study Hurricane Sandy", KDD-LESI 2014: Proceedings of the 1st KDD Workshop on Learning about Emergencies from Social Information at KDD’14, pp. 34–38, 2014.
"Adaptive Event Recognition with the use of Limited Training Data", Recent Advances in Information Science and Technology, NE Mastorakis (ed.), pp. 225–232, 1998.
"Discovering user communities on the Internet using unsupervised machine learning techniques", Interacting with Computers, vol. 14, no. 6: Elsevier, pp. 761–791, 2002.
"Discovery of Web user communities and their role in personalization", User Modeling and User-Adapted Interaction, vol. 22, no. 1-2: Springer, pp. 151–175, 2012.