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Mediawiki with Fuseki triplestore backen

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Revision as of 18:39, 19 May 2020 by Andre (talk | contribs)

In this page I will go over the steps required to setup Semantic Mediawiki with a Triple Storage graph database, with Apache Jena Fuseki, [1] SPARQL server.

According to SMW documentation:[2]

By default, Semantic MediaWiki (SMW) stores all data in the same relational database (usually, a MySQL database) that is used by MediaWiki. This ensures a simple setup, but a relational database is not an ideal type of storage for semantic data. A more natural data model for SMW data is RDF, a data format that organizes information in graphs rather than in fixed database tables.

See more in SMW2.0 Release Notes [3]

Running Fuseki

Fuseki SPARQL server


querying

SMW Setting for Fuseki

With SMW installed and enabled

enableSemantics( 'localhost' );

The following settings are added to LocalSettings.php

$smwgDefaultStore = 'SMWSparqlStore';
$smwgSparqlRepositoryConnector = 'fuseki';

$smwgSparqlEndpoint["query"] = 'http://localhost:3030/triplewiki/query';
$smwgSparqlEndpoint["update"] = 'http://localhost:3030/triplewiki/update';
$smwgSparqlEndpoint["data"] = '';

Test queries

In Fuseki interface

All Page type properties:

swivt:page

Note: SWIVT is the Semantic Wiki Vocabulary and Terminology[4]

PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX triplewiki: <http://localhost/triplestorage/index.php/>
PREFIX swivt: <http://semantic-mediawiki.org/swivt/1.0#>
SELECT *

{?o swivt:page ?v}

Code_Notes +
Date"Date" is a type and predefined property provided by Semantic MediaWiki to represent date values.
2020 +