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ICDE
2008
IEEE
161views Database» more  ICDE 2008»
14 years 9 months ago
COLR-Tree: Communication-Efficient Spatio-Temporal Indexing for a Sensor Data Web Portal
Abstract-- We present COLR-Tree, an abstraction layer designed to support efficient spatio-temporal queries on live data gathered from a large collection of sensors. We use COLR-Tr...
Yanif Ahmad, Suman Nath
SIGMOD
2011
ACM
297views Database» more  SIGMOD 2011»
12 years 10 months ago
Graph cube: on warehousing and OLAP multidimensional networks
We consider extending decision support facilities toward large sophisticated networks, upon which multidimensional attributes are associated with network entities, thereby forming...
Peixiang Zhao, Xiaolei Li, Dong Xin, Jiawei Han
BDA
2001
13 years 9 months ago
Querying RDF Descriptions for Community Web Portals
Community Web Portals (e.g., digital libraries, vertical aggregators, infomediaries) have become quite popular nowadays in supporting specific communities of interest on corporate...
Gregory Karvounarakis, Vassilis Christophides, Dim...
ICMCS
2006
IEEE
191views Multimedia» more  ICMCS 2006»
14 years 1 months ago
Semantic Multimedia Retrieval using Lexical Query Expansion and Model-Based Reranking
We present methods for improving text search retrieval of visual multimedia content by applying a set of visual models of semantic concepts from a lexicon of concepts deemed relev...
Alexander Haubold, Apostol Natsev, Milind R. Napha...
CORR
2004
Springer
127views Education» more  CORR 2004»
13 years 7 months ago
Monitoring, Analyzing, and Controlling Internet-scale Systems with ACME
Analyzing and controlling large distributed services under a wide range of conditions is difficult. Yet these capabilities are essential to a number of important development and o...
David L. Oppenheimer, Vitaliy Vatkovskiy, Hakim We...