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SYRCODIS
2008
120views Database» more  SYRCODIS 2008»
13 years 9 months ago
Efficient Implementation of XQuery Constructor Expressions
Element constructor is one of most expensive operations of the XQuery language as it requires deep copy of the nodes which make up the content of the constructed element. In this ...
Leonid Novak, Maxim Grinev, Ilya Taranov
WAIM
2010
Springer
13 years 5 months ago
An Efficient Approach for Mining Segment-Wise Intervention Rules in Time-Series Streams
Huge time-series stream data are collected every day from many areas, and their trends may be impacted by outside events, hence biased from its normal behavior. This phenomenon is ...
Yue Wang, Jie Zuo, Ning Yang, Lei Duan, Hong-Jun L...
ICDE
2012
IEEE
196views Database» more  ICDE 2012»
11 years 10 months ago
Scalable Multi-query Optimization for SPARQL
Abstract—This paper revisits the classical problem of multiquery optimization in the context of RDF/SPARQL. We show that the techniques developed for relational and semi-structur...
Wangchao Le, Anastasios Kementsietsidis, Songyun D...
INFOCOM
2012
IEEE
11 years 10 months ago
Optimal surface deployment problem in wireless sensor networks
—Sensor deployment is a fundamental issue in a wireless sensor network, which often dictates the overall network performance. Previous studies on sensor deployment mainly focused...
Miao Jin, Guodong Rong, Hongyi Wu, Liang Shuai, Xi...
PERCOM
2004
ACM
14 years 7 months ago
Ontology Based Context Modeling and Reasoning using OWL
In this paper we propose an OWL encoded context ontology (CONON) for modeling context in pervasive computing environments, and for supporting logicbased context reasoning. CONON p...
Xiaohang Wang, Daqing Zhang, Tao Gu, Hung Keng Pun...