Publications

• Chapters on books
• U.Galassi. “Learning behavior profiles from noisy sequences”. In Intrusion Detection System (Springer), chapter 3, pp 39–64, 2008. [.pdf - password required]
• U.Galassi, A.Giordana, and L.Saitta. “Structured hidden markov models: A general tool for modeling agent behaviors”. In Soft Computing Applications in Business (Springer), chapter 15, pp 273–292, 2008. [.pdf - password required]
• Journals
• U.Galassi, M. Botta, A. Giordana. “Hierarchical Hidden Markov Models for User/Process Profile Learning". In Fundamenta Informaticae, Vol. 78(4), pp 487 - 505, 2007. [.pdf - password required]
• Lecture Notes
• U.Galassi, A.Giordana, L.Saitta. “Structured Hidden Markov Model: a General Framework for Modeling Complex Sequences”. In Proc. of 10th Congress of the Italian Association for Artificial Intelligence (AI*IA 2007), pp. 290-301, September 2007 [.pdf]
• A.Giordana, U.Galassi, L.Saitta. "Experimental Evaluation of Hierarchical Hidden Markov Model". In Proc. of 9th Congress of the Italian Association for Artificial Intelligence (AI*IA 2005), pp. 249-257, September 2005 [.pdf]
• U.Galassi, A.Giordana. "Learning Regular Expressions from Noisy Sequences". In Proc of 6th International Symposium on Abstraction, Reformulation and Approximation (SARA 2005), pp. 92-107, July 2005. [.pdf]
• U.Galassi, A.Giordana, L.Saitta, M.Botta. "Learning Profiles based on Hierarchical Hidden Markov Model". In Proc. of 15th International Symposium on Methodologies for Intelligent Systems (ISMIS 2005), pp. 47-55, May 2005. [.pdf]
• Peer Reviewed Conferences Proceedings
• U.Galassi “Learning Process Behavior with EDY: an Experimental Analysis”. In Proc. of 4th European Starting AI Researcher Symposium (STAIRS 2008), July 2008. Best Paper Award. [.pdf]
• U.Galassi, A.Giordana, C. Julien, L.Saitta “Modeling Temporal Behavior via Structured Hidden Markov Models: an Application to Keystroking Dynamics”. In Proc. of 3rd Indian International Conference on Artificial Intelligence (IICAI-07), December 2007. [.pdf]
• U.Galassi, A.Giordana, L.Saitta, M.Botta. "Incremental Construction of Structured Hidden Markov Models". In Proc. of 20th International Joint Conference on Artificial Intelligence (IJCAI-07), pp 798 - 803, January 2007 [.pdf]
• U.Galassi, A.Giordana, L.Saitta (2006) "EDY: an Algorithm for Discovering Complex Events in Symbolic Sequences". In Proc. LISOS Workshop , June 2006. [.pdf]
• U.Galassi, A.Giordana, L.Saitta, M.Botta (2005) "Learning Complex Event Description by Abstraction". In Proc. of 19th International Joint Conference on Artificial Intelligence (IJCAI-05), pp. 1600-1601, August 2005. [.pdf]
• U.Galassi, A.Giordana, D.Mendola. "Learning User Profiles From Traces". In Proc. of the 2005 Symposium on Applications and the Internet Workshops (SAINT-W’05), pp. 166-169, January 2005. [.pdf]
• M.Botta, U.Galassi, A.Giordana. "Learning Complex and Sparse Events in Long Sequences". In Proc. of the 16th European Conference on Artificial Intelligence (ECAI’2004), pp. 425-429, August 2004. [.pdf]
• PhD Thesis
• U.Galassi “Structured Hidden Markov Models: A General Tool for Modeling Process Behavior”. Tesi di Dottorato, Università degli Studi di Torino, Aprile 2008. [.pdf - password required]