6974 search results - page 345 / 1395 » Querying Semi-Structured Data |
194
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CADE
2008
Springer
16 years 7 months ago
2008
Springer
Abstract. Conjunctive query answering plays a prominent role in applications of description logics (DLs) that involve instance data, but its exact complexity was a long-standing op...
159
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ISAAC
2005
Springer
16 years 8 days ago
2005
Springer
In this paper, we formulate a class of colored range query problems to model the multi-dimensional range queries in the presence of categorical information. By applying appropriate...
173
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SIGIR
2003
ACM
16 years 12 hour ago
2003
ACM
In this poster,we incorporate user query history, as context information, to improve the retrieval performance in interactive retrieval. Experiments using the TREC data show that ...
160
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ACL
2006
15 years 8 months ago
2006
We present BAYESUM (for "Bayesian summarization"), a model for sentence extraction in query-focused summarization. BAYESUM leverages the common case in which multiple do...
153
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AAAI
1997
15 years 8 months ago
1997
We consider the problem of query plan optimization in information brokers. Information brokers are programs that facilitate access to collections of information sources by hiding ...