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» Gram: A Graph Data Model and Query Language
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ESWS
2008
Springer
13 years 9 months ago
Querying Distributed RDF Data Sources with SPARQL
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...
Bastian Quilitz, Ulf Leser
ESWS
2009
Springer
14 years 2 months ago
Representing, Querying and Transforming Social Networks with RDF/SPARQL
As social networks are becoming ubiquitous on the Web, the Semantic Web goals indicate that it is critical to have a standard model allowing exchange, interoperability, transformat...
Mauro San Martín, Claudio Gutierrez
SIGMOD
2010
ACM
308views Database» more  SIGMOD 2010»
13 years 6 months ago
GBLENDER: towards blending visual query formulation and query processing in graph databases
Given a graph database D and a query graph g, an exact subgraph matching query asks for the set S of graphs in D that contain g as a subgraph. This type of queries find important...
Changjiu Jin, Sourav S. Bhowmick, Xiaokui Xiao, Ja...
ODBIS
2007
Springer
157views Database» more  ODBIS 2007»
14 years 1 months ago
An Extension of SPARQL for RDFS
Abstract. RDF Schema (RDFS) extends RDF with a schema vocabulary with a predefined semantics. Evaluating queries which involve this vocabulary is challenging, and there is not yet...
Marcelo Arenas, Claudio Gutierrez, Jorge Pé...
FUIN
2002
128views more  FUIN 2002»
13 years 7 months ago
PathLog: a Query Language for Schemaless Databases of Partially Labeled Objects
Abstract. In the paper we deal with the problem of modeling and querying information in schemaless databases of partially labeled objects (PLO-DB). Partially labeled objects are us...
Tadeusz Pankowski