1529 search results - page 104 / 306 » Querying for meta knowledge |
173
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CVPR
2004
IEEE
16 years 8 months ago
2004
IEEE
This paper presents a spatio-temporal query language useful for video interpretation and event recognition. The language is suited to describe configurations of objects moving on ...
172
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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...
162
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ECIR
2009
Springer
16 years 3 months ago
2009
Springer
Abstract. We present a new learning to rank framework for estimating context-sensitive term weights without use of feedback. Specifically, knowledge of effective term weights on ...
162
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W2GIS
2007
Springer
16 years 14 days ago
2007
Springer
Abstract. This paper addresses—to our knowledge, for the first time—the problem of querying a geosensor network—a sensor network of mobile, locationaware nodes—for histori...
134
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VLDB
2004
ACM
15 years 11 months ago
2004
ACM
In this paper, we address the maintenance of spatial semijoin queries over continuously moving points, where points are modeled as linear functions of time. This is analogous to t...