Slide 1Special Topics in Computer Science The Art of Information Retrieval Chapter 5: Query Operations Alexander Gelbukh www.Gelbukh.com Slide 2 2 Previous chapter: Conclusions…

Slide 1Semantic WikiPathways Andra Waagmeester Slide 2 Department of Bioinformatics - BiGCaT 2 Overview Introduction to WikiPathways GPML Pathway to RDF conversion Vocabularies…

Slide 1Introduction to Information Retrieval Information Retrieval and Data Mining (AT71.07) Comp. Sc. and Inf. Mgmt. Asian Institute of Technology Instructor: Dr. Sumanta…

Slide 1 Relevance Feedback. Query Expansion Slide 2 Argomenti 1.Relevance feedback - Direct feedback - Pseudo feedback 2.Query expansion - Usando un thesaurus Slide 3 Relevance…

Slide 1 Hierarchical Dirichlet Trees for Information Retrieval Gholamreza Haffari Simon Fraser University Yee Whye Teh University College London NAACL talk, Boulder, June…

Slide 1 Seesaw Personalized Web Search Jaime Teevan, MIT with Susan T. Dumais and Eric Horvitz, MSR Slide 2 Slide 3 Query expansion Personalization Algorithms Standard IR…

Slide 1 Query Expansion Slide 2 Outline Motivation Definition Issues Involved Existing Techniques – Global Thesauri/ WordNet Automatically Generated Thesauri – Local…