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» A study of query length
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CCS
2010
ACM
16 years 1 months ago
A logic for authorization provenance
In distributed environments, statements from a number of principals, besides the central trusted party, may influence the derivations of authorization decisions. However, existin...
Jinwei Hu, Yan Zhang, Ruixuan Li, Zhengding Lu
DASFAA
2009
IEEE
96views Database» more  DASFAA 2009»
16 years 1 months ago
Materialized View Selection in XML Databases
Materialized views, a rdbms silver bullet, demonstrate its efficacy in many applications, especially as a data warehousing/decison support system tool. The pivot of playing materia...
Nan Tang, Jeffrey Xu Yu, Hao Tang, M. Tamer Ö...
SI3D
2009
ACM
16 years 1 months ago
Perceptually consistent example-based human motion retrieval
Large amount of human motion capture data have been increasingly recorded and used in animation and gaming applications. Efficient retrieval of logically similar motions from a l...
Zhigang Deng, Qin Gu, Qing Li
EDBT
2009
ACM
127views Database» more  EDBT 2009»
16 years 1 months ago
Approximate substring selectivity estimation
We study the problem of estimating selectivity of approximate substring queries. Its importance in databases is ever increasing as more and more data are input by users and are in...
Hongrae Lee, Raymond T. Ng, Kyuseok Shim
ICDCN
2009
Springer
16 years 1 months ago
Flooding-Assisted Threshold Assignment for Aggregate Monitoring in Sensor Networks
The research community has witnessed a large interest in monitoring large scale distributed systems. In these applications typically we wish to monitor a global system condition wh...
Ali Abbasi, Ahmad Khonsari, Mohammad Sadegh Talebi