Sciweavers

EDBT
2008
ACM
154views Database» more  EDBT 2008»
14 years 5 months ago
Ring-constrained join: deriving fair middleman locations from pointsets via a geometric constraint
We introduce a novel spatial join operator, the ring-constrained join (RCJ). Given two sets P and Q of spatial points, the result of RCJ consists of pairs p, q (where p P, q Q) ...
Man Lung Yiu, Panagiotis Karras, Nikos Mamoulis
EDBT
2008
ACM
120views Database» more  EDBT 2008»
14 years 5 months ago
Schema mapping verification: the spicy way
Schema mapping algorithms rely on value correspondences ? i.e., correspondences among semantically related attributes ? to produce complex transformations among data sources. Thes...
Angela Bonifati, Giansalvatore Mecca, Alessandro P...
EDBT
2008
ACM
161views Database» more  EDBT 2008»
14 years 5 months ago
The TELAR mobile mashup platform for Nokia internet tablets
With the Web 2.0 trend and its participation of end-users more and more data and information services are online accessible, such as web sites, Wikis, or web services. The integra...
Andreas Brodt, Daniela Nicklas
EDBT
2008
ACM
150views Database» more  EDBT 2008»
14 years 5 months ago
Finding time-dependent shortest paths over large graphs
The spatial and temporal databases have been studied widely and intensively over years. In this paper, we study how to answer queries of finding the best departure time that minim...
Bolin Ding, Jeffrey Xu Yu, Lu Qin
EDBT
2008
ACM
102views Database» more  EDBT 2008»
14 years 5 months ago
Summary management in P2P systems
Sharing huge, massively distributed databases in P2P systems is inherently difficult. As the amount of stored data increases, data localization techniques become no longer suffici...
Rabab Hayek, Guillaume Raschia, Patrick Valduriez,...
EDBT
2008
ACM
122views Database» more  EDBT 2008»
14 years 5 months ago
Mining all frequent projection-selection queries from a relational table
In this paper we study the problem of mining all frequent queries in a given database table, a problem known to be intractable even for conjunctive queries. We restrict our attent...
Tao-Yuan Jen, Dominique Laurent, Nicolas Spyratos
EDBT
2008
ACM
132views Database» more  EDBT 2008»
14 years 5 months ago
Indexing high-dimensional data in dual distance spaces: a symmetrical encoding approach
Due to the well-known dimensionality curse problem, search in a high-dimensional space is considered as a "hard" problem. In this paper, a novel symmetrical encoding-bas...
Yi Zhuang, Yueting Zhuang, Qing Li, Lei Chen 0002,...
EDBT
2008
ACM
124views Database» more  EDBT 2008»
14 years 5 months ago
Scalable XQuery type matching
XML Schema awareness has been an integral part of the XQuery language since its early design stages. Matching XML data against XML types is the main operation that backs up XQuery...
Jens Teubner
EDBT
2008
ACM
169views Database» more  EDBT 2008»
14 years 5 months ago
Efficient online top-K retrieval with arbitrary similarity measures
The top-k retrieval problem requires finding k objects most similar to a given query object. Similarities between objects are most often computed as aggregated similarities of the...
Prasad M. Deshpande, Deepak P, Krishna Kummamuru
EDBT
2008
ACM
112views Database» more  EDBT 2008»
14 years 5 months ago
Ownership protection of shape datasets with geodesic distance preservation
Protection of one's intellectual property is a topic with important technological and legal facets. The significance of this issue is amplified nowadays due to the ease of da...
Michail Vlachos, Claudio Lucchese, Deepak Rajan, P...