PapersQ1

Query 1: Give me an overview of the tools, including programming language, vendor, download URL, Documentation URL, data catalog and Platform, addressing the problem of “SPARQL Query Federation” along with articles which proposed in.

List of tools

Paper	Tool/Ontology	programming language	Year	vendor	Venue	GUI	Data Catalouge	Platform	Downloadpage
Optimizing SPARQL Queries over Disparate RDF Data Sources through Distributed Semi-joins	Distributed SPARQL	Java	2008	No data available now.	ISWC	No	-	Sesame	http://No data available now.
FedX: Optimization Techniques for Federated Query Processing on Linked Data	FedX	Java	2011	No data available now.	ISWC	Yes	-	Sesame	http://www.uidops.com/FedX
Querying the Web of Interlinked Datasets using VOID Descriptions	WoDQA	Java	2012	Open source	LDOW	Yes	VoID stores	Jena	https://sourceforge.net/projects/wodqa/&action=edit&redlink=1
Querying Distributed RDF Data Sources with SPARQL	DARQ	Java	2008	Open Source	ESWC	No	Service Description	Jena	http://darq.sf.net/
A Semantic Web Middleware for Virtual Data Integration on the Web	SemWIQ	Java	2008	Open source	ESWC	Yes	RDF stats + VoID	Jena	https://sourceforge.net/projects/semwiq/
Querying the Web of Data with Graph Theory-based Techniques	GDS	Java	2006	-	Web and Internet Science	No	Service Description	Jena	http://code.google.com/p/gdsparal/
SPLENDID: SPARQL Endpoint Federation Exploiting VOID Descriptions	SPLENDID	Java	2011	Open source	COLD	No	VoID	Sesame	https://github.com/semagrow/fork-splendid-server
ANAPSID: An Adaptive Query Processing Engine for SPARQL Endpoints	ANAPSID	Python 2.6.5	2011	-	ISWC	Yes	Predicate list and endpoint status	ANAPSID	https://github.com/anapsid/anapsid
Adaptive Integration of Distributed Semantic Web Data	ADERIS	Java	2010	No data available now.	DNIS	Yes	Predicate List during setup phase	-	http://No data available now.
Avalanche: Putting the Spirit of the Web back into Semantic Web Querying	Avalanche	-	2010	-	ISWC	No	Search Engine	Avalanche	http://-

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