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  1. 7 May 2008

    II CUSL, bound for Sevilla

    written by Sergio Fernández at 20h34

    In a couple of hours I’ll flight to Sevilla to attend the final phase of the II Concurso Universitario de Software Libre, a place and an event with very good memories for me. This years there are really good projects, so good luck everybody!

  2. 6 May 2008

    SDoW2008

    written by Sergio Fernández at 23h15

    This year’s International Semantic Web Conference (ISWC2008) will host the first workshop on Social Data on the Web (SDoW2008). I’m very proud to co-chair this workshop with John, Uldis and Alex, and I’m sure that we’ll get really good and interesting contributions.

    Remember, submitted papers are due by July 25, 2008.

  3. 4 May 2008

    RDFohloh

    written by Sergio Fernández at 12h49

    Ohloh is an open source directory where anyone can add projects. Analyzing directly the SCM of a project (so it’s independent if your project is hosted in SourceForge or in a repository of your home server), it provides some interesting metrics. it was launched in 2004, but if I’m sincerely I didn’t know it until some days ago that Nacho told me about it.

    So this morning in a couple of hours I developed RDFohloh, a RDF wrapper of Ohloh. Using its RESTful API the service provides RDF data of projects indexed in Ohloh, serialized both in XHTML+RDFa, RDF/XML and N3. I know that the idea is not so different than other services such as DOAPSpace, but it’s another way to create thousands of new instances of doap:Project and sioc.User.

    The service will be online under the restrictions of Ohloh’s API (only 1.000 requests per day) and source code is available, so feedback is welcomed.

  4. 21 Apr 2008

    WWW2008, a pity

    written by Sergio Fernández at 23h22

    This week Beijing (China) hosts the WWW2008 Conference, probably the most important conference about the Web. It’s a pity not to be there, because there are many interesting things:

    Well, next year is closer, so we’ll try to be there.

  5. 15 Apr 2008

    Back in Asturias

    written by Sergio Fernández at 23h55

    After two intense months in Galway, yesterday I arrived to Asturias in the last flight of the night.

    Today I’ve returned to CTIC. It’s nice to see again all my workmates after this period outside of Spain. As probably you know, the approach of DERI, where all people is directly working in semantic web stuff, is different than other institutes. They have some of the best semantic web researchers in the world. So the experience to work in DERI with them had been something really unforgettable. And I hope to be able to apply here all thing that I learned during these two months in my visit to DERI.

    But not everything was work. There I made very good friends, specially my housemates (Tuukka and Darragh), but also many other people (John, Uldis, Richard, Thomas, Stéphane, Cosmin, Holger, Gabi, etc…). I hope I will see them again in another place, or who knows if any day I could return to Galway…

  6. 10 Apr 2008

    Talk in DERI

    written by Sergio Fernández at 14h58

    On yesterday I gave a talk in DERI NUI Galway about SWAML. Basically I presented our latest work on the project (and our paper in a workshop of WWW2008 in China). It was really nice to discuss about this stuff with first class researchers. Thank John for invite me. By the way, slides are available.

    before my talk in DERI

    And in the afternoon we also organized a brainstorming about SIOC that was also quite interesting.

    It’s a pity that my time here is finishing…

  7. 8 Apr 2008

    Repeating the experiment with SWSE

    written by Sergio Fernández at 19h54

    OK, with Sindice it woks, but my engineer mind didn’t stop to remember me that we could do it better…

    And then I remembered SWSE. Their approach is a little bit different: it moves away from the document centered view to an entity centered view. So it’s able to give better answers for concrete queries (like a query over my email). I was talking with Andreas about his (interesting) project, and the conclusions can not be better. They are starting to make weekly updated, something that is really cool.

    But from the point of view of a semantic web application, such as SWAML, the biggest goal of the project is that provides (using YARS2) a complete SPARQL end-point where you can make complex queries. Then, using our SPARQL interface, it’s easy to write a python wrapper for SWSE, and use it to get the best URI for a person with a query like:

    PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
SELECT DISTINCT ?person
WHERE {
  ?file foaf:primaryTopic ?person .
  ?person rdf:type foaf:Person . 
  ?person foaf:mbox_sha1sum "..."                                    
}

    So now in SWAML we support both semantic search engines, Sindice and SWSE, with a simple additional line in its configuration. And then we have real links between SIOC and FOAF data.

  8. 7 Apr 2008

    SFSW 2008

    written by Sergio Fernández at 23h37

    People who know me know really well that I like scripting languages, specially Python. So SFSW2008 (co-located with ESWC2008) is one of my favourite workshops. With the travel this weekend I didn’t have time to comment that this year the workshop has three papers accepted from CTIC:

    • Diego Berrueta, Jose Emilio Labra and Ivan Herman. XSLT+SPARQL: Scripting the Semantic Web with SPARQL embedded into XSLT stylesheets.
    • Diego Berrueta, Sergio Fernández and Iván Frade. Cooking HTTP content negotiation with Vapour.
    • Cosmin Basca, Stéphane Corlosquet, Richard Cyganiak, Sergio Fernández and Thomas Schandl. Neologism: Easy Vocabulary Publishing.

    I’m very proud to say that I was involved in two of them (about Vapour and Neologism), really good news :-)

  9. 7 Apr 2008

    Belfast

    written by Sergio Fernández at 12h54

    Last week Tejo came to Galway to visit me. And this weekend we made a trip thought Northern Ireland. The Giant’s Causeway was astonishing. And Belfast is a nice city with a lot of things that is interesting to know directly.

    Giant's Causeway

    As usual, all photos in flickr.

  10. 31 Mar 2008

    The Heilmeier Catechism

    written by Sergio Fernández at 22h01

    George Heilmeier had a set of questions, called Heilmeier Catechism, that every proposal for a new research effort should be able to answer:

    1. What is the problem, why is it hard?
    2. How is it solved today?
    3. What is the new technical idea; why can we succeed now?
    4. What is the impact if successful?
    5. How will the program be organized?
    6. How will intermediate results be generated?
    7. How will you measure progress?
    8. What will it cost?

    Thank you to Richard, via my network on del.icio.us, see also.