44 search results - page 2 / 9 » Processing SPARQL queries over distributed RDF graphs |
WWW
2008
ACM
14 years 5 months ago
2008
ACM
Easy reuse and integration of declaratively described information in a distributed setting is one of the main motivations for building the Semantic Web. Despite of this claim, reu...
CIKM
2011
Springer
12 years 4 months ago
2011
Springer
A fundamental problem related to RDF query processing is selectivity estimation, which is crucial to query optimization for determining a join order of RDF triple patterns. In thi...
ESWS
2009
Springer
13 years 2 months ago
2009
Springer
Many applications operate on time-sensitive data. Some of these data are only valid for certain intervals (e.g., job-assignments, versions of software code), others describe tempor...
ESWS
2007
Springer
13 years 11 months ago
2007
Springer
Complex relationships, frequently referred to as semantic associations, are the essence of the Semantic Web. Query and retrieval of semantic associations has been an important task...
ESWS
2008
Springer
13 years 6 months ago
2008
Springer
Integrated access to multiple distributed and autonomous RDF data sources is a key challenge for many semantic web applications. As a reaction to this challenge, SPARQL, the W3C Re...