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» Provenance for Aggregate Queries
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KAIS
2008
151views more  KAIS 2008»
13 years 10 months ago
Expertise-based peer selection in Peer-to-Peer networks
Abstract. Peer-to-Peer systems have proven to be an effective way of sharing data. Modern protocols are able to efficiently route a message to a given peer. However, determining th...
Peter Haase, Ronny Siebes, Frank van Harmelen
PVLDB
2008
123views more  PVLDB 2008»
13 years 9 months ago
Dependable cardinality forecasts for XQuery
Though inevitable for effective cost-based query rewriting, the derivation of meaningful cardinality estimates has remained a notoriously hard problem in the context of XQuery. By...
Jens Teubner, Torsten Grust, Sebastian Maneth, She...
CVPR
2012
IEEE
12 years 11 days ago
Computing nearest-neighbor fields via Propagation-Assisted KD-Trees
Matching patches between two images, also known as computing nearest-neighbor fields, has been proven a useful technique in various computer vision/graphics algorithms. But this ...
Kaiming He, Jian Sun
ICDE
2005
IEEE
120views Database» more  ICDE 2005»
14 years 11 months ago
Progressive Distributed Top k Retrieval in Peer-to-Peer Networks
Query processing in traditional information management systems has moved from an exact match model to more flexible paradigms allowing cooperative retrieval by aggregating the dat...
Wolf-Tilo Balke, Wolfgang Nejdl, Wolf Siberski, Uw...
ICDE
2004
IEEE
137views Database» more  ICDE 2004»
14 years 11 months ago
Selectivity Estimation for XML Twigs
Twig queries represent the building blocks of declarative query languages over XML data. A twig query describes a complex traversal of the document graph and generates a set of el...
Neoklis Polyzotis, Minos N. Garofalakis, Yannis E....