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» Query Optimization Using Local Completeness
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PR
2006
119views more  PR 2006»
13 years 7 months ago
Performance evaluation and optimization for content-based image retrieval
Performance evaluation of content-based image retrieval (CBIR) systems is an important but still unsolved problem. The reason for its importance is that only performance evaluatio...
Julia Vogel, Bernt Schiele
SEMWEB
2004
Springer
14 years 1 months ago
Top-k Query Evaluation for Schema-Based Peer-to-Peer Networks
Abstract. Increasing the number of peers in a peer-to-peer network usually increases the number of answers to a given query as well. While having more answers is nice in principle,...
Wolfgang Nejdl, Wolf Siberski, Uwe Thaden, Wolf-Ti...
SEBD
2007
121views Database» more  SEBD 2007»
13 years 9 months ago
Query Answering in Expressive Variants of DL-Lite
The use of ontologies in various application domains, such as Data Integration, the Semantic Web, or ontology-based data management, where ontologies provide the access to large am...
Alessandro Artale, Diego Calvanese, Roman Kontchak...
CONEXT
2009
ACM
13 years 8 months ago
The age of impatience: optimal replication schemes for opportunistic networks
: We study mobile P2P content dissemination schemes which leverage the local dedicated caches provided by hand-held devices (e.g., smart-phones, PDAs) and opportunistic contacts be...
Joshua Reich, Augustin Chaintreau
BMCBI
2008
106views more  BMCBI 2008»
13 years 7 months ago
Searching for evolutionary distant RNA homologs within genomic sequences using partition function posterior probabilities
Background: Identification of RNA homologs within genomic stretches is difficult when pairwise sequence identity is low or unalignable flanking residues are present. In both cases...
Usman Roshan, Satish Chikkagoudar, Dennis R. Lives...