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Alex Ntoulas

Researcher
Microsoft Research, ISRC

1065 La Avenida, Mountain View, CA 94043
antoulas [at] microsoft.com
office: +1 (650) 693 2187

Alexandros Ntoulas is a Researcher at Microsoft Research in Mountain View, California, where he is working on integrated search of structured and unstructured data and entity extraction.

He received a Ph.D. degree in Computer Science from the University of California Los Angeles (UCLA) in 2006 and a B.Sc. from the Computer Engineering and Informatics Department (CEID) of Patras University, Greece in 2000. His area of expertise is Databases and Web information systems and his research interests are in the study of systems and algorithms that facilitate the monitoring, collection, management, minining and searching of information on the World Wide Web. He publishes research papers in international conference proceedings and journals and has three patents pending. He was the co-founder of Infocious, a Web Search Engine that applies linguistic analysis techniques in order to provide highly relevant results and a better search experience to the user. He was the recipient of the Best Paper Award for the ICDE 2005 conference.

List of Select Publications

  • Ntoulas, J. Cho. Pruning Policies for Two-Tiered Inverted Index with Correctness Guarantee. In Proceedings of the ACM International Information Retrieval (SIGIR) Conference, 2007, Amsterdam, Netherlads.
  • D. Kukulenz, A. Ntoulas. Answering Bounded Continuous Search Queries in the World Wide Web. In Proceedings of the World Wide Web (WWW) Conference, 2007, Banff, Canada.
  • P. Ipeirotis, A. Ntoulas, J. Cho, and L. Gravano. Modeling and Managing Content Changes in Text Databases. ACM Transactions on Database Systems (TODS), vol. 32, no. 3, September 2007.
  • Ntoulas, M. Najork, M. Manasse, D. Fetterly. Detecting Spam Web Pages through Content Analysis. In Proceedings of the World Wide Web (WWW) Conference, 2006, Edinburgh, Scotland.
  • S. Stamou, A. Ntoulas, V. Krikos, P. Kokosis, D. Christodoulakis. Classifying Web Data in Directory Structures. In Proceedings of the 8th Asia Pacific Web Conference (APWeb), January 16-18, Harbin, China, LNCS 3841, Springer-Verlag, pp. 238-249, 2006.
  • P. Ipeirotis, A. Ntoulas, J. Cho, L. Gravano. Modeling and Managing Content Changes in Text Databases. (Best Paper Award) In Proceedings of the IEEE International Conference on Data Engineering (ICDE), 2005, Tokyo, Japan.
  • Ntoulas, G. Chao, J. Cho. The Infocious Web Search Engine: Improving Web Searching through Linguistic Analysis. In Proceedings of the World Wide Web (WWW) Conference, 2005, Chiba, Japan.
  • Ntoulas, P. Zerfos, J. Cho. Downloading Textual Hidden Web Content through Keyword Queries. In Proceedings of the Joint Conference on Digital Libraries (JCDL), 2005, Denver, USA.
  • V. Krikos, S. Stamou, A. Ntoulas, P. Kokosis, D. Christodoulakis. DirectoryRank: Ordering Pages in Web Directories. In Proceedings of the 7th ACM International Workshop on Web Information and Data Management (WIDM05), Bremen, Germany, 2005.
  • S. Stamou, V. Krikos, P. Kokosis, A. Ntoulas, D. Christodoulakis. Web Directory Construction using Lexical Chains. In Proceedings of the International Conference on Applications of Natural Language to Databases (NLDB), 2005.
  • Ntoulas, J. Cho, C. Olston. What's New on the Web? The Evolution of the Web from a Search Engine Perspective. In Proceedings of the World Wide Web (WWW) Conference, 2004, New York, USA.
  • J. Cho, A. Ntoulas. Effective Change Detection using Sampling. In Proceedings of the International Conference on Very Large Databases (VLDB), 2002, Hong Kong, China.
  • S. Stamou, A. Ntoulas, M. Kyriakopoulou, D. Christodoulakis. Expanding EuroWordNet with Domain-Specific Terminology Using Common Lexical Resources: Vocabulary Completeness and Coverage Issues. In Proceedings of the 1st Global Wordnet Conference (GWC), January 21-25, Mysore, India, 2002.
  • S. Stamou, A. Ntoulas, J. Hoppenbrouwers, M. Saiz-Noeda, D. Christodoulakis. EUROTERM: Extending the EuroWordNet with Domain-Specific Terminology Using an Expand Model Approach. In Proceedings of the 1st Global Wordnet Conference (GWC), January 21-25, Mysore, India, 2002.
  • Ntoulas, S. Stamou, M. Tzagarakis. Using a WWW Search Engine to Evaluate Normalization Performance for a Highly Inflectional Language. In Proceedings of the ACL/EACL Student Research Workshop, July 6-11, Toulouse, France, 2001.
  • Ntoulas, S. Stamou, I. Tsakou, C. Tsalidis, M. Tzagarakis, A. Vagelatos. Use of a Morphosyntactic Lexicon for the Implementation of the Greek Wordnet. In Proceedings of the 2nd International Conference on Natural Language Processing (NLP), June 2-4, Greece, LNCS 1835, Springer-Verlag, pp. 49-56, 2000.
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