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Efficient Index-Based Snippet Generation
Ranked result lists with query-dependent snippets have become state of the art in text search. They are typically implemented by searching, at query time, for occurrences of the query words in the top-ranked documents. This document-based approach has ...
Modeling Term Associations for Probabilistic Information Retrieval
Traditionally, in many probabilistic retrieval models, query terms are assumed to be independent. Although such models can achieve reasonably good performance, associations can exist among terms from a human being’s point of view. There are some recent ...
Social-Sensed Image Search
Although Web search techniques have greatly facilitate users’ information seeking, there are still quite a lot of search sessions that cannot provide satisfactory results, which are more serious in Web image search scenarios. How to understand user ...
Theoretical, Qualitative, and Quantitative Analyses of Small-Document Approaches to Resource Selection
In a distributed retrieval setup, resource selection is the problem of identifying and ranking relevant sources of information for a given user’s query. For better usage of existing resource-selection techniques, it is desirable to know what the ...
