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SIGMOD
2008
ACM
126views Database» more  SIGMOD 2008»
14 years 8 months ago
On efficient top-k query processing in highly distributed environments
Lately the advances in centralized database management systems show a trend towards supporting rank-aware query operators, like top-k, that enable users to retrieve only the most ...
Akrivi Vlachou, Christos Doulkeridis, Kjetil N&osl...
MM
2006
ACM
197views Multimedia» more  MM 2006»
14 years 2 months ago
Virtual observers in a mobile surveillance system
Conventional wide-area video surveillance systems use a network of fixed cameras positioned close to locations of interest. We describe an alternative and flexible approach to w...
Stewart Greenhill, Svetha Venkatesh
PERCOM
2010
ACM
13 years 6 months ago
Privacy assurance in mobile sensing networks: Go beyond trusted servers
—Mobile devices are becoming the largest sensor network around the world. They could be used to collect a large amount of data with little effort and cost which is leading to a p...
Ling Hu, Cyrus Shahabi
CLUSTER
2005
IEEE
14 years 1 months ago
Fast Query Processing by Distributing an Index over CPU Caches
Data intensive applications on clusters often require requests quickly be sent to the node managing the desired data. In many applications, one must look through a sorted tree str...
Xiaoqin Ma, Gene Cooperman
USS
2008
13 years 10 months ago
Proactive Surge Protection: A Defense Mechanism for Bandwidth-Based Attacks
Large-scale bandwidth-based distributed denial-of-service (DDoS) attacks can quickly knock out substantial parts of a network before reactive defenses can respond. Even traffic flo...
Jerry Chi-Yuan Chou, Bill Lin, Subhabrata Sen, Oli...