Title: Relevance feedback index for document visualization
Speaker: Guy Melancon, Université de Bordeaux & INRIA Bordeaux, head of the INRIA GRAVITE team (http://www.inria.fr)
Date: Monday, February 20, 2012 11:00am - 12:00pm
Location: DIMACS Center, CoRE Bldg, Room 431, Rutgers University, Busch Campus, Piscataway, NJ
Designing visual interfaces to layout and visually explore large document collections still remain a focus of attention. This task can be tackled using various techniques, typically combining Euclidean embedding's (MDS, graph drawing) and document clustering. The complexity of this task produces results of varying quality and inevitably carries noise. At any rate, users must be careful when interpreting Euclidean proximity or grouping of documents. We address this problem by computing a relevance feedback index for any group of documents (selected by the user, or forming a cluster) confirming/infirming whether a group of documents can be trusted to form a semantically coherent unit. The index is inspired from past work by Ronald Burt -- document visualization meets social network analysis.
DIMACS/CCICADA Interdisciplinary Series, Complete Spring Calendar 2012