Projects tagged ‘sparql’

Sesame is a Java framework for storing, querying and inferencing for RDF. It can be deployed as a web server or used as a Java library. Features include several query languages (SeRQL and SPARQL) ... [More] , inferencing support, and RAM, disk, or RDBMS storage. [Less]

rdf handling library for python

RAP is a software package for parsing, searching, manipulating, serializing and serving RDF models.

A suite of tools able to process Java libraries as RDF models.

LDAP 2 SPARQL - Accessing RDF Knowledge Bases via LDAP Clients In order to exploit the client support of LDAP directories with the semantic expressivity of RDF knowledge bases, we aim at ... [More] integrating RDF knowledge bases into LDAP directory services. LDAP 2 SPARQL is a Backend to the widely used OpenLDAP server. It translates LDAP queries into SPARQL queries, asks a SPARQL endpoint and translates the result back to LDIF. [Less]

xOperator combines advantages of social network websites with instant messaging. It tries to be a semantic agent for xmpp / jabber network which finds and shares content about resources (using RDF/SPARQL) for you and your jabber friends.

Semantic, RDF-based wiki. Written in Python with Cherrypy and RDFlib.

API in Scala providing a DSL for writing, traversing and querying RDF graphs. Implemented as a façade to Jena, an RDF programming framework for Java.

LinqToRdf provides a full-featured LINQ query provider for .NET using both local triple stores with Graph Matching and SPARQL queries on remote stores. It also provides graphical design tools for ... [More] visual studio 2008 that provide a UML style design surface for the production of both ontologies and .NET domain models. [Less]

SimpleSPARQL allows queries to SPARQL endpoints in a very simple language similar to MQL. The query language is designed specifically for python and uses python dictionaries in the same way as MQL. ... [More] Example Code: >>> from SimpleSPARQL import SimpleSPARQL >>> sparql = SimpleSPARQL("http://dbpedia.org/sparql") >>> n = sparql.n >>> n.bind('rdf', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#') >>> n.bind('rdfs', 'http://www.w3.org/2000/01/rdf-schema#') >>> n.bind('dbpedia2', 'http://dbpedia.org/property/') >>> # the area in Km^2 of things labeled England >>> print sparql.quickread({ >>> n.rdfs.label : u"England", >>> n.dbpedia2.areaKm : None >>> })[0] 130395 >>> # The Prime Minister of England's types >>> q = { >>> n.rdfs.label : u"England", >>> n.dbpedia2.primeMinister : { >>> n.rdf.type : None >>> } >>> } >>> for type in sparql.quickread(q) : >>> print type http://xmlns.com/foaf/0.1/Person http://dbpedia.org/class/yago/PrimeMinistersOfTheUnitedKingdom http://dbpedia.org/class/yago/ChancellorsOfTheExchequerOfTheUnitedKingdom http://dbpedia.org/class/yago/LeadersOfTheBritishLabourParty http://dbpedia.org/class/yago/AcademicsOfTheUniversityOfEdinburgh http://dbpedia.org/class/yago/RectorsOfTheUniversityOfEdinburgh http://dbpedia.org/class/yago/PeopleFromGlasgow http://dbpedia.org/class/yago/AcademicsOfTheOpenUniversity ... >>> for obj in sparql.read(q) : >>> print obj { rdflib.URIRef('http://dbpedia.org/property/primeMinister'):{ rdflib.URIRef('http://www.w3.org/1999/02/22-rdf-syntax-ns#type'): u'http://dbpedia.org/ontology/OfficeHolder#Class' }, rdflib.URIRef('http://www.w3.org/2000/01/rdf-schema#label'): u'England' } { rdflib.URIRef('http://dbpedia.org/property/primeMinister'):{ rdflib.URIRef('http://www.w3.org/1999/02/22-rdf-syntax-ns#type'): u'http://dbpedia.org/ontology/OfficeHolder#Class' }, rdflib.URIRef('http://www.w3.org/2000/01/rdf-schema#label'): u'England' } { rdflib.URIRef('http://dbpedia.org/property/primeMinister'):{ rdflib.URIRef('http://www.w3.org/1999/02/22-rdf-syntax-ns#type'): u'http://dbpedia.org/ontology/OfficeHolder#Class' }, rdflib.URIRef('http://www.w3.org/2000/01/rdf-schema#label'): u'England' } ... >>> print sparql.ask({ n.rdfs.label : u"England", n.dbpedia2.primeMinister : { n.rdfs.label : u"Tony Blair" } }) False >>> # and if you could do writes to dbpedia: >>> obj = { >>> n.rdfs.label : "Hello World", >>> n.sparql.create : n.sparql.unless_exists >>> } >>> sparql.write(obj) [Less]