Results Fusion in Heterogeneous Information Sources

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Presentation transcript:

Results Fusion in Heterogeneous Information Sources Srikanth Kallurkar

Motivation Low Retrieval Effectiveness in DIR Limitation of Automated Database Selection (ADS) techniques Causes Heterogeneity of information sources Heterogeneous data Possible restrictions to search domains Resultant limitation of Results Fusion techniques

DIR Scheme Information Sources Query Formulator Results Fusionator

Fusion Scheme Heterogeneous Information Sources Recursive Solution Fusion in pairs Catalog Solution Present user with best N results (lists) Annotate each answer with system generated confidence values Heterogeneous Data Cluster Data (Preferably Online) Reduce scope of search Metadata weighted fusion