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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...
Modeling Term Associations for Probabilistic Information Retrieval
Jiashu Zhao, Jimmy Xiangji Huang, Zheng Ye
Article No.: 7
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...
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...
Theoretical, Qualitative, and Quantitative Analyses of Small-Document Approaches to Resource Selection
Ilya Markov, Fabio Crestani
Article No.: 9
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...