1542 search results - page 220 / 309 » Redundancy in Spatial Databases |
172
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GIS
2009
ACM
15 years 4 months ago
2009
ACM
We propose a location-based query anonymization technique, LBS (k,T)-anonymization, that ensures anonymity of user's query in a specific time window against what we call know...
179
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CVPR
2001
IEEE
16 years 8 months ago
2001
IEEE
This paper presents an improvement of the classical Non-negative Matrix Factorization (NMF) approach, for dealing with local representations of image objects. NMF, when applied to...
252
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GIS
2007
ACM
16 years 7 months ago
2007
ACM
The automatic creation of 3D models of urban spaces has become a very active field of research. This has been inspired by recent applications in the location-awareness on the Inte...
192
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ICDE
2010
IEEE
16 years 3 months ago
2010
IEEE
— In this paper1 we address the problem of processing continuous multi-join queries, over distributed data streams. Our approach makes use of existing work in the field of publi...
143
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SAC
2009
ACM
16 years 1 months ago
2009
ACM
Today user-centered information acquisition over collections of complex XML documents is increasingly in demand. To this end, preferences have become an important paradigm enablin...