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» Optimizing Monitoring Queries over Distributed Data
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DMSN
2004
ACM
14 years 2 months ago
A framework for spatio-temporal query processing over wireless sensor networks
Wireless sensor networks consist of nodes with the ability to measure, store, and process data, as well as to communicate wirelessly with nodes located in their wireless range. Us...
Alexandru Coman, Mario A. Nascimento, Jörg Sa...
ISCI
2006
145views more  ISCI 2006»
13 years 8 months ago
Processing count queries over event streams at multiple time granularities
Management and analysis of streaming data has become crucial with its applications in web, sensor data, network traffic data, and stock market. Data streams consist of mostly nume...
Aykut Ünal, Yücel Saygin, Özgü...
VLDB
2000
ACM
129views Database» more  VLDB 2000»
14 years 5 days ago
Offering a Precision-Performance Tradeoff for Aggregation Queries over Replicated Data
Strict consistency of replicated data is infeasible or not required by many distributed applications, so current systems often permit stale replication, in which cached copies of ...
Chris Olston, Jennifer Widom
ICDE
2008
IEEE
232views Database» more  ICDE 2008»
14 years 10 months ago
Continuous Content-Based Copy Detection over Streaming Videos
Digital videos are increasingly adopted in various multimedia applications where they are usually broadcasted or transmitted as video streams. Continuously monitoring copies on the...
Ying Yan, Beng Chin Ooi, Aoying Zhou
ICEBE
2005
IEEE
168views Business» more  ICEBE 2005»
14 years 2 months ago
Frequency Operators for Condensative Queries over Data Streams
Over a traditional Database Management System (DBMS), the answer to an aggregate query is usually much smaller than the answer to a similar nonaggregate query. Therefore, we call ...
Lisha Ma, Werner Nutt