Sciweavers

5166 search results - page 44 / 1034
» Web Query Optimizer
Sort
View
WWW
2008
ACM
14 years 10 months ago
Efficiently querying rdf data in triple stores
Efficiently querying RDF [1] data is being an important factor in applying Semantic Web technologies to real-world applications. In this context, many efforts have been made to st...
Ying Yan, Chen Wang, Aoying Zhou, Weining Qian, Li...
SIGMOD
1992
ACM
160views Database» more  SIGMOD 1992»
14 years 2 months ago
Extensible/Rule Based Query Rewrite Optimization in Starburst
This paper describes the Query Rewrite facility of the Starburst extensible database system, a novel phase of query optimization. We present a suite of rewrite rules used in Starb...
Hamid Pirahesh, Joseph M. Hellerstein, Waqar Hasan
EDBT
2010
ACM
185views Database» more  EDBT 2010»
14 years 4 months ago
Optimizing joins in a map-reduce environment
Implementations of map-reduce are being used to perform many operations on very large data. We examine strategies for joining several relations in the map-reduce environment. Our ...
Foto N. Afrati, Jeffrey D. Ullman
IADIS
2003
13 years 11 months ago
Query Formulation in Web Information Search
Query formulation is an essential part of successful information retrieval. The challenges in formulating effective queries are emphasized in web information search, because the w...
Anne Aula
KDD
2012
ACM
179views Data Mining» more  KDD 2012»
12 years 12 days ago
Web image prediction using multivariate point processes
In this paper, we investigate a problem of predicting what images are likely to appear on the Web at a future time point, given a query word and a database of historical image str...
Gunhee Kim, Fei-Fei Li, Eric P. Xing