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» A Method for Secure Query Processing in Mobile Databases
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GIS
2005
ACM
15 years 10 months ago
Adaptive nearest neighbor queries in travel time networks
Nearest neighbor (NN) searches represent an important class of queries in geographic information systems (GIS). Most nearest neighbor algorithms rely on static distance informatio...
Wei-Shinn Ku, Roger Zimmermann, Haojun Wang, Chi-N...
SIGMOD
2008
ACM
188views Database» more  SIGMOD 2008»
15 years 10 months ago
Just-in-time query retrieval over partially indexed data on structured P2P overlays
Structured peer-to-peer (P2P) overlays have been successfully employed in many applications to locate content. However, they have been less effective in handling massive amounts o...
Sai Wu, Jianzhong Li, Beng Chin Ooi, Kian-Lee Tan
VLDB
1999
ACM
89views Database» more  VLDB 1999»
15 years 2 months ago
Physical Data Independence, Constraints, and Optimization with Universal Plans
We present an optimization method and algorithm designed for three objectives: physical data independence, semantic optimization, and generalized tableau minimization. The method ...
Alin Deutsch, Lucian Popa, Val Tannen
ICIP
2002
IEEE
15 years 11 months ago
Retrieval of sketches based on spatial relation between strokes
In this paper we propose a method to retrieve sketches stored in the form of multiple strokes, by extracting the shape information for each stroke and by considering the spatial r...
Wing Ho Leung, Tsuhan Chen
DEXA
2004
Springer
115views Database» more  DEXA 2004»
15 years 3 months ago
TriM: Tri-Modal Data Communication in Mobile Ad-Hoc Networks
A Mobile Ad-Hoc Network (MANET) is a group of wireless, mobile, battery-powered clients and servers that autonomously form temporary networks. Three data communication modes can be...
Leslie D. Fife, Le Gruenwald