RDF-ization: Is That What I’ve Been Up To?

Recently, on his blogKingsley Idehen wrote:

RDF-ization is a term used by the Semantic Web community to describe the process of generating RDF from non RDF Data Sources such as (X)HTML, Weblogs, Shared Bookmark Collections, Photo Galleries, Calendars, Contact Managers, Feed Subscriptions, Wikis, and other information resource collections.

Although Idehen identifies a number of data sources, he does not explicitly identify two data sources I’ve been spending a fair amount of time with over the past few years: 

Of course, whether the motivation is personal/social-networking or scientific/IT related, the attention to RDF-ization is win-win for all stakeholders. Why? Anything that accelerates the RDF-ization of non-RDF data sources brings us that much closer to realizing the true value of the Semantic Web.

Google Blogging 2007: From Legitimizing Blogs to Wikipedia-Competitor Google Knol

There’s a recent, year-in-review entry by the Google blogging team.Not only does this entry highlight another wonderful year for Google, it also quantitatively places blogging in perspective. If you ever had any doubts as to the legitimacy of blogging, just read this post.Amongst the highlights I found the announcement of the Knol test project to be of interest. Although I’m a huge fan of knowledge representation and management, especially in the context of the Semantic Web, I must confess to being confused by Knol. At the most-basic level, Knol seems to be about knowledge sharing. And more-specifically, providing jumping off points (from search-engine hits) for those seeking to understand some topic.Therefore, I can’t help but ask, is there more to Knol than it’s Google’s competitive answer to Wikipedia?If you happen to drop by my blog, and this post, please feel free to share your take on Knol.What am I missing?

Introducing InstallationWiki.org

From a recent Packt Publishing press release:

Following on from the success of Wikipedia, which counts itself as one of the top ten most viewed websites on the Internet, InstallationWiki.org will provide its users with a continually updated resource, written by experts, that will help solve any software installation problem.

InstallationWiki.org has been developed using the open source MediaWiki software package and is supported by UK publisher Packt. The website has initially been populated using installation chapters from Packt books.

The aim is for InstallationWiki.org to become a one-stop source of information for installing software.

With users generating the majority of the content, the aim is for the site to grow into an exhaustive library of installation guides, covering everything from setting up a social networking platform to installing an open source Voice over IP (VoIP) system.

Although this may sound unreasonably ambitious, consider:

  1. The resounding success of Wikipedia
  2. That Packt is seeding InstallationWiki.Org with content from its own titles

That’s a great start for a great idea!

Also consider that embellishments will be provided by the community that develops around InstallationWiki.Org. As Wikipedia has demonstrated, that can be a much more sustainable and scalable model than that of traditional authorship.

There’s already some excellent content available for installation prosumers!

CANARIE’s Network-Enabled Platforms Workshop: Follow Up

I spent a few days in Ottawa last week participating in CANARIE’s Network-Enabled Platforms Workshop.

As the pre-workshop agenda indicated, there’s a fair amount of activity in this area already, and much of it originates from within Canada.

Now that the workshop is over, most of the presentations are available online.

In my case, I’ve made available a discussion document entitled “Evolving Semantic Frameworks into Network-Enabled Semantic Platforms”. This document is very much a work in progress and feedback is welcome here (as comments to this blog post), to me personally (via email to ian AT yorku DOT ca), or via CANARIE’s wiki.

Although a draft of the CANARIE RFP funding opportunity was provided in hard-copy format, there was no soft-copy version made available. If this is of interest, I’d suggest you keep checking the CANARIE site.

Finally, a few shots I took of Ottawa are available online

wikiyork: Academic Social Networking via a Wiki

I spent two days earlier this week participating in the TEL(Technology Enhanced Learning)@York 2007 event.

This year, the conference theme was “Partnerships to Enhance Student Engagement“.

Arguably, Rene Suarez’ wikiyork contribution was the most-provocative demonstration of a partnership to enhance student engagement.

wikiyork is:

  • a place to share notes, reading summaries, exam reviews, tests, assignments, opinions, etc…
  • open-source, editable by anyone, viewable by anyone
  • student-controlled (not really…everyone has equal control; everyone is a student and a teacher)
  • free (non-profit and ad-free)

In discussing wikiyork as an enabling platform for peer collaboration in an undergraduate academic setting, one of the concerns raised was the unearned benefit of such ventures to social loafers. In addressing this concern, it may benefit the wikiyork team to reflect upon the basic elements of cooperative teams:

  • Positive interdependence
  • Individual accountability
  • Face-to-face promotive interaction
  • Interpersonal and small group skills
  • Group processing

By recontextualizing these elements for wikiyork, it may be possible to (over time) turn social loafers into social contributors.

I’m not sure if wikiyork is the first of its kind. Regardless, I applaud the efforts of Rene Suarez and his collaborators, as I believe they’re on to something potentially compelling with wikiyork.

Annotation Really Is A Big Deal!

My expressed interest in annotation began as a footnote:

An alternative approach has the following two steps: First, extract RDF from the .GGP and .AUX files as before. Second, incorporate data contained in the .LOG file via annotation. Annotation is a well-established practice [45, Chapter 4] involving RDF and the XML Pointer Language (XPointer, [22]) — essentially a URI-centric fragment identifier. This conversion flow is currently under investigation and the corresponding manuscript is in preparation.

This footnote appeared in a paper that was published by the IEEE for HPCS 2006. The alluded-to manuscript will soon be available from the IEEE and will be presented in mid-May at HPCS 2007.

In addition to this manuscript on annotation, along with my co-authors, I’ve recently submitted a broader-based treatment to a special issue (“Geoscience Knowledge Representation for Cyberinfrastructure”) of Computers & Geosciences (C&G). The abstract of the C&G submission is as follows:

Incorporating Annotations into Formal and Informal Ontologies: Experiences and Implications

L. I. Lumb, J. R. Freemantle, J. I. Lederman & K. D. Aldridge


Traditionally, and to a first approximation, annotations can be regarded as comments. In the case of the Web Ontology Language (OWL), this perspective is largely accurate, as annotations are internal constructs included with the language. As internal constructs, annotations in OWL Description Logic (DL) are also constrained to ensure, ultimately, that they do not negatively impact on the ontology’s ability to remain computationally complete and decidable. Formal ontologies, however, can also be annotated externally with the XML Pointer Language (XPointer). Because XPointer-based annotations are quite likely to result in violations of the constraints traditionally placed on OWL DL’s built-in annotations, there exist potentially serious consequences for maintaining self-contained formal ontologies. Insight gained in modeling annotations in formal ontologies using top-down strategies can be applied to informal ontologies. In part, the previous practice of incorporating feature-based annotations directly into informal ontologies is regarded differently, as the XPointer-based annotations may require more complex OWL dialects in which computational completeness and decidability cannot be guaranteed. Critical to the development of informal ontologies is Gleaning Resource Descriptions from Dialects of Languages (GRDDL), as it facilitates the extraction of Resource Description Format (RDF) relationships from representations cast in the eXtensible Markup Language (XML). In order to fully enable the creation of informal ontologies, however, an analogous functionality is required to extract OWL classes, properties and individuals from RDF-based representations. Although a strategy for this capability has been specified, hopefully community based efforts will soon target a corresponding implementation.

Key words:
Annotation, Formal Ontology, Informal Ontology, Ontology, Semantic Web, XPointer, Web Ontology Language

In addition to these papers, I’ve blogged a lot about annotation. And the more I delve into annotation, the more I’m taken by it’s applicability. For example, I’ll be making a presentation at CANHEIT 2007 on annotation and wikis.

Annotation really is a big deal!