667 search results - page 31 / 134 » Context-Dependent Term Relations for Information Retrieval |
115
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WWW
2010
ACM
15 years 6 months ago
2010
ACM
The World-Wide Web consists not only of a huge number of unstructured texts, but also a vast amount of valuable structured data. Web tables [2] are a typical type of structured in...
172
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SIGMOD
2009
ACM
16 years 2 days ago
2009
ACM
Existing keyword-search systems in relational databases require users to submit a complete query to compute answers. Often users feel "left in the dark" when they have l...
CIKM
2011
Springer
13 years 12 months ago
2011
Springer
Typically, users interact with database systems by formulating queries. However, many times users do not have a clear understanding of their information needs or the exact content...
105
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SIGIR
2008
ACM
14 years 11 months ago
2008
ACM
We investigate a representative case of sudden information need change of Web users. By analyzing search engine query logs, we show that the majority of queries submitted by users...
SIGIR
2003
ACM
15 years 5 months ago
2003
ACM
The empirical investigation of the effectiveness of information retrieval (IR) systems requires a test collection, a set of query topics, and a set of relevance judgments made by ...