1542 search results - page 220 / 309 » Redundancy in Spatial Databases |
GIS
2009
ACM
13 years 6 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...
CVPR
2001
IEEE
14 years 11 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...
GIS
2007
ACM
14 years 10 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...
ICDE
2010
IEEE
14 years 6 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...
SAC
2009
ACM
14 years 3 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...