778 search results - page 21 / 156 » Modelling a Query Space Using Associations |
115
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HT
1998
ACM
15 years 6 months ago
1998
ACM
In this paper, we introduce an integrated approach to the development of spatial hypertext. This approach brings together several theories and techniques concerning semantic struc...
125
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DEXAW
2009
IEEE
15 years 8 months ago
2009
IEEE
—This paper compares and illustrates the use of manually and automatically assigned descriptors on German documents extracted from the GIRT Corpus. A second objective is to analy...
197
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ICDT
2009
ACM
16 years 2 months ago
2009
ACM
The need to manage diverse information sources has triggered the rise of very loosely structured data models, known as "dataspace models." Such information management sy...
113
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SIGIR
2008
ACM
15 years 1 months ago
2008
ACM
Many ranking models have been proposed in information retrieval, and recently machine learning techniques have also been applied to ranking model construction. Most of the existin...
114
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SIGMOD
2001
ACM
16 years 2 months ago
2001
ACM
We study the problem of generating e cient, equivalent rewritings using views to compute the answer to a query. We take the closed-world assumption, in which views are materialize...