Tag Archives: SPARQL

Andreas Blumauer

Webinar: Semantic Web for Developers

by , Category: Conferences & Events, Software Development

GotoWebinar, March 20: Semantic Web for Developers – building semantic applications with PoolParty

This webinar gives insights into software development based on semantic web standards. We will give a short overview over frequently used standards (SPARQL, SKOS and RDF), application scenarios and technologies (OpenRDF, Virtuoso, Solr/Lucene) and we will give live-demos on how to make use of PoolParty technologies to build a variety of semantic applications.

Part 1 (15min):
Short introduction to semantic web and linked data standards, overview over typical application scenarios

Part 2 (30min):
PoolParty architecture, components and APIs: making use of the linked data front end, Sparql endpoint, PoolParty reports, thesaurus API (PPT API), extractor API (PPX API) and semantic search API (PPS API) -  for each API, an example will be shown (incl. returned formats and how to make use of it in a programming language like PHP)

Part 3 (10min):
Putting the pieces together: Combine the APIs to build

- a semantic search engine
- a content recommender
- a linked data mashup

Part 4 (min. 5min):
Questions and answering

Register now: https://www4.gotomeeting.com/register/774130327

Andreas Blumauer

SKOS without SPARQL

by , Category: Semantic Web Applications, Software Development

Today PoolParty Team has announced the first official release of the PoolParty SKOS API.

This API can be installed in addition to a PoolParty Thesaurus Server 3.2 and offers an easy way to programmatically access data of a SKOS thesaurus via RESTful services. The SKOS API can be used without any knowledge about SPARQL .

This first release of the API offers web services to access thesaurus projects, concept schemes, concepts and SPARQL lists. In addition to basic SKOS querying, the API also supports the import of RDF data, SPARQL update and a service to push candidate terms into a thesaurus project triggered by any kind of application (like a CMS or a wiki).

Learn more about the PoolParty SKOS API.

Andreas Blumauer

Education Services Australia announces new release of Schools Online Thesaurus

by , Category: Linked Data & Open Data, Vocabularies & Languages
Education Services Australia has recently announced the release of Schools Online Thesaurus (ScOT) v6.7.
ScOT and agreed standards for digital resources, technical infrastructure, metadata and rights management support a national operating environment for the digital resources and infrastructure.
As part of this infrastructure, the National Digital Learning Resources Network contains over 12,000 digital resources that are free for use in all Australian schools. The resources are made available to teachers through State and Territory portals or Scootle and to pre-service teachers through eContent.
Version 6.7 has made possible by a recent addition to the ScOT project team. Ben Chadwick has undertaken a Vocabulary Support role since January 2012 and his work with web-services, data mining and thesaurus editing has contributed to the delivery of a substantial body of work.

Significant steps have been taken in the area of non-English labels, especially the addition of Chinese, Indonesian, Japanese and Korean term translations. Other preliminary work, including development of language and character encoding support, facilitates translations in Arabic, Māori and other languages. A sample concept can be found at http://vocabulary.curriculum.edu.au/scot/976

This represents a substantial opportunity for ScOT to support users who are learning or who have a background in languages other than English. Online environments can be designed or adapted to take advantage of standardised language encoding and character support.
A number of new features and improvements have been developed in the ScOT website:
  • User generated reports – lists new, modified and deprecated terms
  • Cataloguing tool – quickly identifies hierarchical relationships within a group of terms
  • Linked Data API for querying ScOT database: SPARQL Endpoint
  • Tips and code examples for developing search tools and managing term changes
  • Revised license and simplified registration process
  • Auto-complete feature for searching ScOT
  • Web Content Accessibility Guidelines (WCAG 2.0) – range of issues identified and fixed
The associated report can be accessed from the ScOT website releases page http://scot.curriculum.edu.au/releases.asp.
ScOT is based on PoolParty technologies.
Thomas Thurner

data.reegle.info – Linked Open Data on Clean Energy

by , Category: Linked Data & Open Data

Following the worldwide trend of Open Government Data as well as Linked (Open) Data the reegle.info team has decided to launch a reegle data portal in November 2010: data.reegle.info.

The idea of providing raw data (first mentioned by Sir Tim Berners Lee in the course of the W3C Linked (Open) Data movement) for free and unrestricted re-use follows the idea and objectives of the reegle.info information system as the single point of access for worldwide clean energy data (renewable energy as well as energy efficiency).

On data.reegle.info you can find data on stakeholders in the clean energy area as well as country (energy) profiles from the 1st day of the launch in November 2010 – later on the reegle.info team will open up its renewable energy and energy efficiency thesaurus (SKOS format) for public re-use and continuously will open up and provide more and more clean energy data on data.reegle.info. As license for data.reegle.info the Open Government Data License for public sector information is used. data.reegle.info follows W3C standards and recommendations for Linked Open Data as well as Open Government Data.

For developers data.reegle.info have created a comprehensive developer guide as well as a SPARQL endpoint as the central API to the reegle.info data. So the the reegle.info consortium  hopes that data.reegle.info initiates a lot of new (data) mash ups as well as innovative apps using data.reegle.info.