Dec 10, 2010 Combining Concepts and Language Models for Information Access Jul 02, 2010 Conceptual language models for domain-specific retrieval Jul 16, 2008 Parsimonious concept modeling Jul 16, 2008 Measuring Concept Relatedness Using Language Models Oct 13, 2007 Integrating Conceptual Knowledge into Relevance Models: A Model and Estimation Method Sep 13, 2007 Thesaurus-Based Feedback to Support Mixed Search and Browsing Environments Jan 12, 2007 Expanding Queries Using Multiple Resources Jan 12, 2006 Combining Thesauri-based Methods for Biomedical Retrieval