5954 search results - page 304 / 1191 » Querying Bi-level Information |
189
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ESORICS
2002
Springer
16 years 6 months ago
2002
Springer
Abstract. An important goal of security in information systems is confidentiality. A confidentiality policy specifies which users should be forbidden to acquire what kind of inform...
134
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ECIR
2009
Springer
16 years 3 months ago
2009
Springer
As document collections grow larger, the information needs and relevance judgments in a test collection must be well-chosen within a limited budget to give the most reliable and ro...
164
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AIRS
2008
Springer
16 years 1 months ago
2008
Springer
We present a novel approach that transforms the weighting task to a typical coarse-grained classification problem, aiming to assign appropriate weights for candidate expansion term...
183
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IRAL
2003
ACM
16 years 9 hour ago
2003
ACM
In this paper, we focus on performing LSI on very low SVD dimensions. The results show that there is a nearly linear surface in the local query region. Using low-dimensional LSI o...
216
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DOOD
1997
Springer
15 years 11 months ago
1997
Springer
With the increasing importance of the World Wide Web as an information source, there is a growing interest for integration of Web and database technology. Several Web query languag...