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PODS
2007
ACM

159views Database» more PODS 2007»

Generalized hypertree decompositions: np-hardness and tractable variants

14 years 10 months ago

The generalized hypertree width GHW(H) of a hypergraph H is a measure of its cyclicity. Classes of conjunctive queries or constraint satisfaction problems whose associated hypergr...

Georg Gottlob, Thomas Schwentick, Zoltán Mi...

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26

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MOBISYS
2003
ACM

143views Computer Networks» more MOBISYS 2003»

Characterizing Mobility and Network Usage in a Corporate Wireless Local-Area Network

14 years 9 months ago

Download nms.lcs.mit.edu

Wireless local-area networks are becoming increasingly popular. They are commonplace on university campuses and inside corporations, and they have started to appear in public area...

Magdalena Balazinska, Paul Castro

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40

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SDM
2009
SIAM

235views Data Mining» more SDM 2009»

Topic Cube: Topic Modeling for OLAP on Multidimensional Text Databases.

14 years 7 months ago

Download www.cs.uiuc.edu

As the amount of textual information grows explosively in various kinds of business systems, it becomes more and more desirable to analyze both structured data records and unstruc...

ChengXiang Zhai, Duo Zhang, Jiawei Han

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31

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SDM
2009
SIAM

129views Data Mining» more SDM 2009»

Scalable Distributed Change Detection from Astronomy Data Streams Using Local, Asynchronous Eigen Monitoring Algorithms.

14 years 7 months ago

Download www.csee.umbc.edu

This paper considers the problem of change detection using local distributed eigen monitoring algorithms for next generation of astronomy petascale data pipelines such as the Larg...

Kamalika Das, Kanishka Bhaduri, Sugandha Arora, We...

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34

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ICDCS
2009
IEEE

174views Distributed And Parallel Com...» more ICDCS 2009»

FLASH: Fine-Grained Localization in Wireless Sensor Networks Using Acoustic Sound Transmissions and High Precision Clock Synchro

14 years 7 months ago

Download www.ics.forth.gr

Sensor localization in wireless sensor networks is an important component of many applications. Previous work has demonstrated how localization can be achieved using various metho...

Evangelos Mangas, Angelos Bilas

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