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» The Complexity of Query Reliability
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ICIW
2008
IEEE
16 years 1 months ago
Governed Content Distribution on DHT Based Networks
Abstract—Peer-to-Peer (P2P) systems are widely used for sharing digital items without structured metadata and in absence of any kind of digital rights management applied to the d...
Walter Allasia, Francesco Gallo, Marco Milanesio, ...
ICCSA
2007
Springer
16 years 24 days ago
Weak Visibility of Two Objects in Planar Polygonal Scenes
Abstract. Determining whether two segments s and t in a planar polygonal scene weakly see each other is a classical problem in computational geometry. In this problem we seek for a...
Mostafa Nouri, Alireza Zarei, Mohammad Ghodsi
WINE
2007
Springer
124views Economy» more  WINE 2007»
16 years 23 days ago
Stochastic Models for Budget Optimization in Search-Based Advertising
Internet search companies sell advertisement slots based on users’ search queries via an auction. Advertisers have to solve a complex optimization problem of how to place bids o...
S. Muthukrishnan, Martin Pál, Zoya Svitkina
DAWAK
2005
Springer
16 years 5 days ago
Automatic Selection of Bitmap Join Indexes in Data Warehouses
The queries defined on data warehouses are complex and use several join operations that induce an expensive computational cost. This cost becomes even more prohibitive when querie...
Kamel Aouiche, Jérôme Darmont, Omar B...
XSYM
2004
Springer
115views Database» more  XSYM 2004»
15 years 12 months ago
XQuery Processing with Relevance Ranking
Abstract. We are presenting a coherent framework for XQuery processing that incorporates IR-style approximate matching and allows the ordering of results by their relevance score. ...
Leonidas Fegaras