15 Dec 2019

feedPlanet RDF

Cloud Cipher Capabilities

… or, the lack of it. A recent discussion at a customer made me having a closer look around support for encryption in the context of XaaS cloud service offerings as well as concerning Hadoop. In general, this can be broken down into over-the-wire (cf. SSL/ TLS ) and back-end encryption. While the former is widely used, the latter is rather seldom to find. Different reasons might exits why one wants to encrypt her data, ranging from preserving a competitive advantage to end-user privacy issues. No matter why someone wants to encrypt the data, the question is do systems support ...

15 Dec 2019 6:06pm GMT

10 Dec 2019

feedPlanet RDF

Common Tag semantic tagging format released today

The Common Tag format for semantic tagging has been finally released today after almost a year of intense work on it by a group of Web companies active in the semantic technologies area, among them Yahoo. It's been great fun working on this and I'm proud to have been involved: while there have been vocabularies before for representing tags in RDF, this effort is different in at least two respects. First, a significant effort of time has been spent on making sure the specification meets the needs of all partners involved. The support of these companies for the specification will ...

10 Dec 2019 5:10pm GMT

Simplified RDF

I propose that we designate a certain subset of the RDF model as "Simplified RDF" and standardize a method of encoding full RDF in Simplified RDF. The subset I have in mind is exactly the subset used by Facebook's Open Graph Protocol (OGP) , and my proposed encoding technique is relatively straightforward. I've been mulling over this approach for a few months, and I'm fairly confident it will work, but I don't claim to have all the details perfect yet. Comments and discussion are quite welcome, on this posting or on the semantic-web@w3.org mailing list. This discussion, I'm afraid, is ...

10 Dec 2019 5:09pm GMT

Lets talk about plugs

This is a summary of a short talk I gave internally at the ODI to help illustrate some of the important aspects of data standards for non-technical folk. I thought I'd write it up here too, in case its useful for anyone else. Let me know what you think. We benefit from standards in every aspect of our daily lives. But because we take them for granted, we don't tend to think about them very much. At the ODI we're frequently talking about standards for data which, if you don't have a technical background, might be even harder to wrap ...

10 Dec 2019 5:07pm GMT

Some of my (very) preliminary opinions on Google Wave

I was interviewed by Marie Boran from Silicon Republic recently for an interesting article she was writing entitled " Will Google Wave topple the e-mail status quo and change the way we work? ". I thought that maybe my longer answers may be of interest and am pasting them below. Disclaimer: My knowledge of Google Wave is second hand through various videos and demonstrations I've seen… Also, my answers were written pretty quickly! As someone who is both behind Ireland's biggest online community boards.ie and a researcher at DERI on the Semantic Web , are you excited about Google Wave? ...

10 Dec 2019 5:05pm GMT

Open government and Linked Data; now it's time to draft…

For the past few months, there have been a variety of calls for feedback and suggestions on how the US Government can move towards becoming more open and transparent, especially in terms of their dealings with citizens and also for disseminating information about their recent financial stimulus package. As part of this, the National Dialogue forum was set up to solicit solutions for ways of monitoring the "expenditure and use of recovery funds". Tim Berners-Lee wrote a proposal on how linked open data could provide semantically-rich, linkable and reusable data from Recovery.gov . I also blogged about this recently , ...

10 Dec 2019 5:05pm GMT

Idea for Linked Open Data from the US recovery effort

Tim Berners-Lee recently posted an important request for the provision of Linked Open Data from the US recovery effort website Recovery.gov . The National Dialogue website (set up to solicit ideas for data collection , storage, warehousing, analysis and visualisation; website design ; waste, fraud and abuse detection; and other solutions for transparency and accountability) says that for Recovery.gov to be a useful portal for citizens, it "requires finding innovative ways to integrate, track, and display data from thousands of federal, state, and local entities". If you support the idea of Linked Open Data from Recovery.gov, you can have a ...

10 Dec 2019 5:05pm GMT

Haklae Kim and his successful defense in September

This is a few months late but better late then never! We said goodbye to PhD researcher Haklae Kim in May of this year when he returned to Korea and took up a position with Samsung Electronics soon afterward. We had a nice going away lunch for Haklae with the rest of the team from the Social Software Unit (picture below). Sheila, Uldis, John, Haklae, Julie, Alex and Smita Haklae returned to Galway in September to defend his PhD entitled "Leveraging a Semantic Framework for Augmenting Social Tagging Practices in Heterogeneous Content Sharing Platforms". The examiners were Stefan Decker , ...

10 Dec 2019 5:05pm GMT

Book launch for "The Social Semantic Web"

We had the official book launch of " The Social Semantic Web " last month in the President's Drawing Room at NUI Galway. The book was officially launched by Dr. James J. Browne, President of NUI Galway . The book was authored by myself, Dr. Alexandre Passant and Prof. Stefan Decker from the Digital Enterprise Research Institute at NUI Galway (sponsored by SFI ). Here is a short blurb: Web 2.0 , a platform where people are connecting through their shared objects of interest, is encountering boundaries in the areas of information integration, portability, search, and demanding tasks like querying. ...

10 Dec 2019 5:05pm GMT

BlogTalk 2009 (6th International Social Software Conference) – Call for Proposals – September 1st and 2nd – Jeju, Korea

BlogTalk 2009 The 6th International Conf. on Social Software September 1st and 2nd, 2009 Jeju Island , Korea Overview Following the international success of the last five BlogTalk events, the next BlogTalk - to be held in Jeju Island, Korea on September 1st and 2nd, 2009 - is continuing with its focus on social software , while remaining committed to the diverse cultures, practices and tools of our emerging networked society. The conference (which this year will be co-located with Lift Asia 09 ) is designed to maintain a sustainable dialog between developers, innovative academics and scholars who study social ...

10 Dec 2019 5:05pm GMT

Another successful defense by Uldis Bojars in November

Uldis Bojars submitted his PhD thesis entitled "The SIOC MEthodology for Lightweight Ontology Development" to the University in September 2009. We had a nice night out to celebrate in one of our favourite haunts, Oscars Bistro . Jodi, John, Alex, Julie, Liga, Sheila and Smita This was followed by a successful defense at the end of November 2009. The examiners were Chris Bizer and Stefan Decker . Uldis even wore a suit for the event, see below. I will rule the world! Uldis established a formal ontology design process called the SIOC MEthodology, based on an evolution of existing methodologies ...

10 Dec 2019 5:05pm GMT

09 Dec 2019

feedPlanet RDF

Conditional Sharing – Virtuoso ACL Groups Revisited

Previously we saw how ACLs can be used in Virtuoso to protect different types of resources. Today we will look into conditional groups which allow to share resources or grant permissions to a dynamic group of individuals. This means that we do not maintain a list of group members but instead define a set of conditions which an individual needs to fulfill in order to be part of the group in question. That does sound very dry. Let's just jump to an example: @prefix oplacl: <http://www.openlinksw.com/ontology/acl#> . [] a oplacl:ConditionalGroup ; foaf:name "People I know" ; oplacl:hasCondition [ a oplacl:QueryCondition ...

09 Dec 2019 7:20pm GMT

Welcome to schema.org

Bing, Google, and Yahoo! have announced schema.org yesterday, a collaboration between the three search providers in the area of vocabularies for structured data. As the 'schema guy' at Yahoo!, I have been part of the very small core team that developed technical content for schema.org. It's been an interesting process: if you doubt that achieving an agreement in the search domain is hard, consider that the last time such an agreement happened was apparently sitemaps.org in 2006. However, over the years, the lack of agreement on schemas have become such a major pain point for publishers new to the Semantic ...

09 Dec 2019 7:17pm GMT

Microformats and RDFa deployment across the Web

I have presented on previous occasions (at Semtech 2009, SemTech 2010 , and later at FIA Ghent 2010 , see slides for the latter, also in ISWC 2009 ) some information about microformat and RDFa deployment on the Web. As such information is hard to come by, this has generated some interest from the audience. Unfortunately, Q&A time after presentations is too short to get into details, hence some additional background on how we obtained this data and what it means for the Web. This level of detail is also important to compare this with information from other sources, where ...

09 Dec 2019 7:17pm GMT

05 Dec 2019

feedPlanet RDF

More Complete Resultset Retrieval from Large Heterogeneous RDF Sources

Over recent years, the Web of Data has grown significantly. Various interfaces such as LOD Stats, LOD Laundromat and SPARQL endpoints provide access to hundreds of thousands of RDF datasets, representing billions of facts. These datasets are available in different formats such as raw data dumps and HDT files, or directly accessible via SPARQL endpoints. Querying such a large amount of distributed data is particularly challenging and many of these datasets cannot be directly queried using the SPARQL query language. In order to tackle these problems, We present WimuQ, an integrated query engine to execute SPARQL queries and retrieve results ...

05 Dec 2019 3:05pm GMT

23 Nov 2019

feedPlanet RDF

Want to hire me?

I have been happily working as a self-employed semantic web developer for the last seven years. With steady progress, I dare to say, but the market is still evolving a little bit too slowly for me (well, at least here in Germany) and I can't invest any longer. So I am looking for new challenges and an employer who would like to utilize my web technology experience (semantic or not). I have created a new personal online profile with detailed information about me, my skills, and my work. My dream job would be in the social and/or data web area, ...

23 Nov 2019 1:06am GMT