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PPSWR
2005
Springer
16 years 14 hour ago
A Geospatial World Model for the Semantic Web
The Semantic Web is an endeavour aiming at enhancing Web data with meta-data and data processing, as well as processing methods specifying the “meaning” of such data and allowi...
François Bry, Bernhard Lorenz, Hans Jü...
VLDB
2005
ACM
74views Database» more  VLDB 2005»
16 years 7 hour ago
Designing Information-Preserving Mapping Schemes for XML
An XML-to-relational mapping scheme consists of a procedure for shredding XML documents into relational databases, a procedure for publishing databases back as documents, and a se...
Denilson Barbosa, Juliana Freire, Alberto O. Mende...
VLDB
2005
ACM
125views Database» more  VLDB 2005»
16 years 7 hour ago
Rewriting XPath Queries Using Materialized Views
As a simple XML query language but with enough expressive power, XPath has become very popular. To expedite evaluation of XPath queries, we consider the problem of rewriting XPath...
Wanhong Xu, Z. Meral Özsoyoglu
VLDB
2005
ACM
175views Database» more  VLDB 2005»
16 years 7 hour ago
Catching the Best Views of Skyline: A Semantic Approach Based on Decisive Subspaces
The skyline operator is important for multicriteria decision making applications. Although many recent studies developed efficient methods to compute skyline objects in a specifi...
Jian Pei, Wen Jin, Martin Ester, Yufei Tao
WINE
2005
Springer
122views Economy» more  WINE 2005»
16 years 4 hour ago
Walrasian Equilibrium: Hardness, Approximations and Tractable Instances
We study the complexity issues for Walrasian equilibrium in a special case of combinatorial auction, called single-minded auction, in which every participant is interested in only ...
Ning Chen, Atri Rudra
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