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» Enabling Query Processing on Spatial Networks
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PVLDB
2010
269views more  PVLDB 2010»
13 years 6 months ago
Shortest Path Computation on Air Indexes
Shortest path computation is one of the most common queries in location-based services that involve transportation networks. Motivated by scalability challenges faced in the mobil...
Georgios Kellaris, Kyriakos Mouratidis
WEBDB
2000
Springer
135views Database» more  WEBDB 2000»
13 years 11 months ago
Active Query Caching for Database Web Servers
A substantial portion of web traffic consists of queries to database web servers. Unfortunately, a common technique to improve web scalability, proxy caching, is ineffective for da...
Qiong Luo, Jeffrey F. Naughton, Rajasekar Krishnam...
SSDBM
2008
IEEE
177views Database» more  SSDBM 2008»
14 years 2 months ago
Prioritized Evaluation of Continuous Moving Queries over Streaming Locations
Abstract. Existing approaches to the management of streaming positional updates generally assume that all active user requests have equal importance, ignoring the possibility of an...
Kostas Patroumpas, Timos K. Sellis
DEXA
2007
Springer
173views Database» more  DEXA 2007»
14 years 1 months ago
A P2P Technique for Continuous k-Nearest-Neighbor Query in Road Networks
Due to the high frequency in location updates and the expensive cost of continuous query processing, server computation capacity and wireless communication bandwidth are the two li...
Fuyu Liu, Kien A. Hua, Tai T. Do
GIS
2009
ACM
14 years 9 days ago
Multimedia traffic information in vehicular networks
In this paper we consider a novel multimedia application, in which drivers may query multimedia clips captured by smartphones mounted on other vehicles. These multimedia clips vis...
Ouri Wolfson, Bo Xu, Hyung Ju Cho