Online Ontology Visualisation: RDFa

octubre 5, 2010

jOWL status updateI packaged the latest development version of jOWL into a 0.5 release, available at Google Code. jOWL is an AJAX/javascript extension to jQuery that I am developing. The jOWL library parses and reasons with OWL-DL documents. Supported browsers for this release are Internet Explorer 7 and Firefox 2 & 3.This release is accompanied by several new and impressive demos in my humble opinion. These make use of the new functionalities that have been incorporated so far. Below are some important highlights.

vía Online Ontology Visualisation: RDFa.

The Elgg Community. Bookmarklet

junio 17, 2010

Pop Up window Bookmarklet Enhancement

Opens a Pop Up window for EASY Posting!

Full description:

SPECIAL NOTE!!  Please Rename the Folder in this Zip file AFTER you have Backed Up your Original Bookmarks Folder in the /mod directory. The folder in this ZIP file once you put it in the /mod directory must be Re-named to: bookmarks I want to give thanks for an idea that started with Ping.FM and their Bookmarklet Pop Up Window code. Like all things create a BackUp of the original Elgg Bookmark Folder in the Mod directory if you ever want to go back to that one. Just Unzip the folder bookmarks_PopUp into your /mod directory and go into Admin to enable and turn on the plugin. Then you go back to your bookmarklet page and you need to re-install your bookmarklet to your browser tested works in Firefox and IE 8 and now you got a Pop Up Window! I am looking for someone to add to this create a Auto Close with a slight Delay like Facebook has or and Scuttle. Please let me know if you can do this!

vía The Elgg Community.

Browsers and Authoring Tools – W3C

abril 19, 2010


On this page → technology topics • news • upcoming events and talks

Web agents are intended to serve users. In this section you will find information useful when designing browsers and authoring tools, as well as search engine bots, aggregators, and inference engines.Browsers The most common tool to access the Web is the browser. This is the focal point of many technologies. Authoring Tools The Web gave the possibility for each of us to create content at a low cost and without too much constraints.

vía Browsers and Authoring Tools – W3C.

Planning a Semantic Web site

junio 30, 2009

Rob Crowther (, Web developer, Freelance

Summary: The Semantic Web brings with it the opportunities for users to get smarter search results, and for site owners to get more targeted traffic as users find what they really want. But these benefits don’t just magically appear. This article leads you through the aspects of both information architecture and general infrastructure you need in place to truly take advantage of this burgeoning opportunity.

This article discusses what you need to know to make your Web site part of the Semantic Web. It starts with a discussion of the problems the Semantic Web tries to solve and then moves to the technologies involved, such as Resource Description Framework (RDF), Web Ontology Language (OWL), and SPARQL Protocol and RDF Query Language (SPARQL). You’ll see how the Semantic Web is layered on top of the existing Web. It then covers some issues that you want to know about when you plan a new Web site and also gives specific examples of how to use technologies like RDFa and Microformats to enable your existing Web site to become a part of the Semantic Web.

Aperture Framework

mayo 15, 2009

Java (programming language)
Image via Wikipedia


a Java framework for getting data and metadata

Project name

From Merriam-Webster Online:

Main Entry: ap·er·ture (sounds like this)

Pronunciation: ‘ap-&(r)-“chur, -ch&r, -“tyur, -“tur

Function: noun

Etymology: Middle English, from Latin apertura, from apertus, past participle of aperire to open

1. an opening or open space : HOLE

2. a : the opening in a photographic lens that admits the light

b : the diameter of the stop in an optical system that determines the diameter of the bundle of rays traversing the instrument

c : the diameter of the objective lens or mirror of a telescope

Sourceforge project

desdeAperture Framework.

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Introduction to Semantic Web Vision and Technologies – Part 4 – Protege 101 (Screencast) – Blog – Semantic Focus – The Semantic Web, Semantic Web technology and computational semantics

mayo 15, 2009

Gracias a Cody Burleson por el tutorial de Protege

Vodpod videos no longer available.

more about "Introduction to Semantic Web Vision a…", posted with vodpod

Semantic Web Server – URIQA

mayo 9, 2009

Semantic Web Server – URIQA

Logo for Semantic Web Server - URIQA


The Nokia Semantic Web Server is an RDF based application suite for metadata-driven web publishing and knowledge management. It is a central component of the Forum Nokia website, the Nokia Research Center website, and the Nokia Open Source website. It also serves as Nokia’s reference implementation of URIQA, the URI Query Agent model.

The Nokia Semantic Web Server suite is comprised of a number of modular semantic web services:

/uriqa? – a URIQA query portal, with rule-based inference functionality.

/new? – a query portal for obtaining information about recently published or updated resources, provided as RSS 1.0 or as RDF Facets; also with rule-based inference functionality.

/id? – a resource identifier generator, employing UUIDs and providing PURL functionality.

/query? – a metadata and free-text query portal, providing output results as RSS 1.0 feeds; with both metadata driven and crawler based indexing agents.

/search? – a human friendly search UI; which integrates with any conformant /query? portal.

/editor? – a web form based, ontology driven metadata editor with validation and user authentication & access control; which integrates with any conformant /uriqa? portal.

The core of these web services are provided as open source, and while most can be used “out of the box”, some require a moderate amount of configuration and customization depending on the requirements and constraints of the particular solution.


The Nokia Semantic Web Server code is released under the NOKOS version 1.0a .


SWS-URIQA is available on the download page on Sourceforge

Semantic Web Server – URIQA.

Patrick Stickler — contact

Amaya Binary Releases

abril 16, 2009

Amaya is intended to be a comprehensive client environment for testing and evaluating new proposals for Web standards and formats. A large part of the intended features of Amaya are implemented in this release, but some of them are not complete yet.

Check out the list of new features.

The Amaya binary distribution is available for PC Linux, Windows (NT, XP, 2000) and Mac OS X. Users having other architectures are expected to compile the Amaya source code.

Release schedule

There are about three Amaya releases a year. Between each major release, we may generate patch releases or snapshots which fix important bugs.

Each time a new release is available, an email is sent to the www-amaya mailing list.

Getting the binary distribution

The binary distribution is available for a set of Windows, Linux and Mac OS X platforms.

desdeAmaya Binary Releases.

ieml. Pierre Levy

abril 7, 2009

IEML: Computational semantics in the service of collective intelligence

The vision behind the IEML (Information Economy MetaLanguage) initiative.

By Prof. Pierre Lévy
Fellow of the Royal Society (Academy of Sciences) of Canada
Director of the Canada Research Chair in Collective Intelligence
University of Ottawa

Text translated by Michele Healy

The semantic interoperability problem

The universe of communication opened up to us by the interconnection of digital data and automatic manipulators of symbols – in other words, cyberspace – henceforth constitutes the virtual memory of collective human intelligence. Yet, at the symbolic level, important obstacles hinder digital memory from working fully in the service of an optimal management of knowledge. These obstacles can be decomposed into two interdependent sub-groups.

The first one concerns the multiplicity and the incompatibility of symbolic systems:


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Semantic Web Use Cases and Case Studies: Twine

abril 6, 2009

Image representing Twine as depicted in CrunchBase
Image via CrunchBase

Jim Wissner Twine and Nova Spivack, Twine, USA

April 2009


Twine helps people track, discover, and share content around topics they are interested in.

Twine is built on a semantic applications platform that combines W3C standards for RDF and OWL with natural-language processing, statistical analysis and graph analysis capabilities.

Twine is developed by Radar Networks, headquartered in San Francisco. Before developing Twine, Radar Networks had worked on the CALO Cognitive agent That Learns and Organizes project, a distributed research program focused on next-generation semantically-aware machine learning applications. The Twine product was initially shown in late 2007 and early 2008 and became publicly available in October 2008.

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