Stores

• 35 Database/datastores and 5 SPARQL tools listed at  http://www.semantic-web.at/30.9917.semantic-web-tools.htm

Existing storage

• Triple stores
  •  Virtuoso Semantic Web Tools
  •  4store
    •  Mac OS X 10.6 Mach-O 64-bit executable x86_64 package
  • AllegroGraph
  •  Sesame
  •  Jena
  •  Redland
  •  Mulgara
  •  bigdata
  • ORACLE
  • :

• RDB, NoSQL, KVS (Key-value store) ?
  •  TokyoCabinet
  •  CouchDB

Query interfaces

• SPARQL
  •  RelFinder
  •  Sheaflight
  •  VisiNav
  •  SIMILE/Exhibit
  •  http://lod.openlinksw.com/fct
  •  http://lod.openinksw.com/isparql
  •  http://www.tecweb.inf.puc-rio.br/explorator
• SPARQL endpoints
  •  SPARQL endpoint provided by Bio2RDF
  •  http://atlas.bio2rdf.org/sparql
  •  http://beta.dbcls.jp/virtuoso/sparql
  •  http://lod.openlinksw.com/sparql

Evaluation

• Scale?
• Speed
• Interface