3251 search results - page 351 / 651 » Challenges in Web Information Retrieval |
143
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KDD
2009
ACM
16 years 5 months ago
2009
ACM
To take the first step beyond keyword-based search toward entity-based search, suitable token spans ("spots") on documents must be identified as references to real-world...
166
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CIKM
2009
Springer
15 years 11 months ago
2009
Springer
Users frequently modify a previous search query in hope of retrieving better results. These modifications are called query reformulations or query refinements. Existing research h...
138
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WWW
2005
ACM
16 years 5 months ago
2005
ACM
This paper is concerned with the problem of definition search. Specifically, given a term, we are to retrieve definitional excerpts of the term and rank the extracted excerpts acc...
130
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WWW
2008
ACM
16 years 5 months ago
2008
ACM
Hypothesis generation is a crucial initial step for making scientific discoveries. This paper addresses the problem of automatically discovering interesting hypotheses from the we...
116
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WWW
2008
ACM
16 years 5 months ago
2008
ACM
In Web search ranking, the expected results for some queries could vary greatly depending upon location of the user. We name such queries regional sensitive queries. Identifying r...