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Matteo Busanelli

Extension:SparqlExtension - MediaWiki - 0 views

www.mediawiki.org/...Extension:SparqlExtension

SMW Semantic Web documentation sparql extension integration RDF triplestore

shared by Matteo Busanelli on 29 Nov 10 - No Cached
    • Matteo Busanelli
      Matteo Busanelli on 29 Nov 10
       
      Try Anzo!!!
  • Matteo Busanelli on 29 Nov 10
     
    This extension allows one to integrate Semantic MediaWiki with a SPARQL endpoint via a web-service. While this has been set up and tested to work with Joseki and Jena TDB, the configuration is generic enough to make it work with any other standard-compliant SPARQL endpoint. We are especially interested in hearing your experiences using the extension with other SPARQL endpoints.
Matteo Busanelli

SPARQL 1.1 Query Results JSON Format - 0 views

www.w3.org/...sparql11-results-json-20110913

SPARQL JSON query results format

shared by Matteo Busanelli on 19 Sep 11 - No Cached
  • Matteo Busanelli on 19 Sep 11
     
    SPARQL is a set of standards for the query and update of RDF data, along with ways to access such data over the web. This document describes the representation of SELECT and ASK query results using JSON.
Matteo Busanelli

semanticweb.com - The Voice of Semantic Web Business - 0 views

semanticweb.com

Semantic Web evernote database d2r R2RML W3C standard

shared by Matteo Busanelli on 11 Dec 13 - Cached
  • The new CSV on the Web Working Group is an important step in that direction, following on the heels of efforts such as R2RML. It’s about providing metadata about CSV files, such as column headings, data types, and annotations, and, with it, making it easily possible to convert CSV into RDF (or other formats), easing data integration
Djiezes Kraaijst

Enter the Cloud with Caution - 0 views

www.businessweek.com/...tc2008083_703047.htm

cloud computers computing future internet questions technology web

shared by Djiezes Kraaijst on 07 Sep 08 - Cached
  • • What is your exit strategy? If you aren't satisfied with the cloud, how much will the migration in both directions have cost
  • • Do you want your employees getting advertising (perhaps from competitors, or for naughty products) along with their e-mail? Consider paying a little to be advertising-free.
  • • What's the access control? Does a single password provide access to everything, so that an intruder could delete your entire business? Is password strength industry-standard? Can you turn off access when you terminate an employee?
  • ...7 more annotations...
  • Might some of them infringe copyrights?
  • • What does the cloud expect of you? Are any of your documents "discriminatory based on race, sex, religion, nationality, disability, sexual orientation, or age?
  • • Does the cloud back up your data? A typical contract stipulates that you bear "sole responsibility for adequate security, protection, and backup."
  • • What if you do business abroad? Your memos and e-mail are subject to USA Patriot Act searches when they cross the border if the "cloud" is actually located in the U.S.
  • • What if you don't pay the bill? Might all your data get deleted abruptly
  • • Who else might see the data?
  • Enter the Cloud with Caution Here are nine questions to ask before trusting your company's data or computing tasks to an outside provider
Matteo Busanelli

Help:Using SPARQL and RDF stores - semantic-mediawiki.org - 0 views

semantic-mediawiki.org/...lp:Using_SPARQL_and_RDF_stores

SMW Semantic Web SPARQL stores RDF

shared by Matteo Busanelli on 05 Aug 11 - No Cached
  • In SMW 1.6.0, stores are required to accept updates and queries that do not specify a graph but it is planned to remove this limitation in the future.
  • The first line tells SMW to use the SPARQL store implementation to store data (instead of the SMWSQLStore2 that is the default). The remaining lines provide the relevant service locations, where the last line can be omitted if not applicable. By default, SMW will use a generic SPARQL connector that is based on recent SPARQL documents. Some RDF databases might not be fully compatible with this or might need special tweaks to make use of advanced, non-standard features. For this purpose, it is possible to change the SPARQL connector that SMW uses by setting the variable $smwgSparqlDatabase. In SMW 1.6.0, there is only one special connector:
  • $smwgSparqlDatabase = 'SMWSparqlDatabase4Store';
  • ...2 more annotations...
  • Missing experience regarding performance and stability: There are a number of industry-strength RDF databases available today, some of them free/open source. Yet, the experience of using these systems with SMW are still limited, so some testing is needed before deciding on a particular backend for a large-scale SMW application.
  • no named graphs are used in SMW queries
  • Matteo Busanelli on 05 Aug 11
     
    By default, SMW stores all data in the MySQL database that is used by MediaWiki. This ensures a simple setup but it is not an ideal solution for the data format and data access methods that SMW needs. A more natural data model for SMW data is RDF, a data format that organizes information in graphs rather than in fixed database tables. It is possible to use such systems in addition to the SQL database for managing SMW data and for answering queries. This page explains the details
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