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Database Technologies for Semantic Web
 

Database Technologies for Semantic Web

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A little slideset about database technologies for semantic web

A little slideset about database technologies for semantic web

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    Database Technologies for Semantic Web Database Technologies for Semantic Web Presentation Transcript

    • Database Technologies for Semantic Web Edilson Ribeiro da Silva Júnior José Maria Silveira Neto    
    • TripleStore  triple {subject, predicate, object}  TripleStore is an RDF Database.   add(triple), remove(triple), triples(pattern), ...    
    • Sesame  An open­source framework for querying,  inferencing and analyzing RDF data.  SeSQL  BSD­style license  Java  PostgreSQL, MySQL, Microsoft SQL Server and  Oracle  databases.    
    • SeSQL  Sesame RDF Query Languag, ”circle”  is a new RDF/RDFS query language that is currently  being developed by Aduna as part of Sesame. It  combines the best features of other (query)  languages (RQL, RDQL, N­Triples, N3) and adds  some of its own.   Graph transformation, RDF Schema support, XML  Schema datatype support, Expressive path  expression syntax, Optional path matching.    
    • Virtuoso  object­relational SQL database  built­in web server  SPARQL  GPLv2  ODBC, JDBC, ADO .Net and OLE/DB.  C, Java, etc.    
    • Jena  HP Labs Semantic Web Programme  RDF API  Reading and writing RDF in RDF/XML, N3 and N­ Triples  OWL API  In­memory and persistent storage  SPARQL query engine  Jena SDB  BSD­style license    
    • R2RQ  D2RQ is a declarative language to describe  mappings between relational database schemata and  OWL/RDFS ontologies. The D2RQ Platform uses  these mapping to enables applications to access a  RDF­view on a non­RDF database through the Jena  and Sesame APIs, as well as over the Web via the  SPARQL Protocol and as Linked Data.    
    • Large TripleStores  Garlik JXT (9.8B)  Jena with PostgreSQL (200M)  YARS2 (7B)  Kowari (160M)  BigOWLIM (1.85B)  3store with MySQL 3 (100M)  Virtuoso Open­Source Edition   Sesame (70M) (1B+)  AllegroGraph (1B)  Jena SDB (650M)  Mulgara (500M)  RDF gateway (262M)    
    • References  http://rdflib.net/2005/10/26/rdflib­2.2.4/doc/triple_store.  http://en.wikipedia.org/wiki/Triplestore  http://recuperaciondeinformacion.itrello.com/SeRQL­en  http://esw.w3.org/topic/LargeTripleStores  http://www4.wiwiss.fu­berlin.de/bizer/D2RQ/