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SEMWEB
2010
Springer
15 years 2 months ago
SPARQL Query Optimization on Top of DHTs
We study the problem of SPARQL query optimization on top of distributed hash tables. Existing works on SPARQL query processing in such environments have never been implemented in a...
Zoi Kaoudi, Kostis Kyzirakos, Manolis Koubarakis
DASFAA
2004
IEEE
87views Database» more  DASFAA 2004»
15 years 8 months ago
UB-Tree Based Efficient Predicate Index with Dimension Transform for Pub/Sub System
For event filtering of publish/subscribe system, significant research efforts have been dedicated to techniques based on multiple one-dimensional indexes built on attributes of sub...
Botao Wang, Wang Zhang, Masaru Kitsuregawa
DLOG
2006
15 years 5 months ago
Experiences with Load Balancing and Caching for Semantic Web Applications
In our case study we investigate a server for answering OWLQL queries with distinguished variables only (henceforth called OWLQL). This server acts as a proxy that delegates queri...
Alissa Kaplunova, Atila Kaya, Ralf Möller
ICIP
2005
IEEE
16 years 6 months ago
Content-based video copy detection in large databases: a local fingerprints statistical similarity search approach
Recent methods based on interest points and local fingerprints have been proposed to perform robust CBCD (content-based copy detection) of images and video. They include two steps...
Alexis Joly, Carl Frélicot, Olivier Buisson
STOC
2006
ACM
166views Algorithms» more  STOC 2006»
16 years 4 months ago
New upper and lower bounds for randomized and quantum local search
Local Search problem, which finds a local minimum of a black-box function on a given graph, is of both practical and theoretical importance to combinatorial optimization, complexi...
Shengyu Zhang