Nodalities

From Semantic Web to Web of Data
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Archive for the 'Technically Speaking' Category

A Chat with Michael Hausenblas

Michael Hausenblas (mhausenblas on irc, has blog) works at Joanneum Research in the field of media semantics. But as you can see at a glance his homepage, his interest in, and contributions to the Semantic Web/Web of Data cover a considerably broader scope – especially around linked data (he’s one of the team behind riese, serving statistical data about 500 million Europeans).
Photo of Michael

Michael’s also an organizer of the upcoming Web of Data Practitioners Days meet-up (Vienna, Austria – Oct 22-23). As one of the aims of the event is to introduce newcomers – webmasters, developers, business folks – to the ideas and applications of the Web of Data, I quizzed Michael mostly from the newcomer point of view.



Apologies for the recording quality, the Skype recording software I normally use didn’t work, so I had to use a semi-acoustic setup instead…

PS. The podcast audio link itself (as marked up by WordPress) appears to get filtered out by certain aggregators – it’s here: MichaelHausenblas.mp3. Incidentally I also I got a request for a transcript – on listening back I can understand why one might assume such a thing would pre-exist, but there wasn’t actually any preparation (although Michael and I aren’t exactly strangers). I was on sleep-deprived autopilot, firing whatever tricky questions came to mind at Michael, and he volleyed them with remarkable ease.

Dean Allemang talks about TopQuadrant and ‘Semantic Web for the Working Ontologist’

Dean Allemang
In our latest podcast I talk with Dean Allemang, Chief Scientist at TopQuadrant. We discuss TopQuadrant’s approach, and the role that semantic technologies play in this, before turning to discussion of the book that Dean recently wrote with previous podcast subject Jim Hendler.

During the conversation, we refer to the following resources;

This conversation was conducted using Skype on 5 June, recorded with Ecamm Network‘s Call Recorder for Skype, and edited on a Mac with Garageband. Thanks are due to Andrew Peterson for his advice on editing the audio.

For further Talking with Talis podcasts on the emerging Web of Data, see here.

A Chat with Dave Beckett

Today’s podcast is an interview with Dave Beckett (blog), Software Architect at Yahoo!

dajobe

Dave’s been a contributor to the Semantic Web initiative since before it had that name, originally coming from a background in parallel computing. As well as having worked on many of the key specifications around RDF, he’s responsible for the Redland toolkit, a comprehensive set of open source libraries for RDF. Dave maintains Planet RDF, an aggregation of Semantic Web blogs, as well as various tools in support of Semantic Web Interest Group (SWIG) communications. Until the quantity of material got out of hand, his RDF Resource Guide was the definitive collection. He derived the human-friendly RDF notation Turtle, which recently appeared as a W3C Team Submission, co-authored with Tim Berners-Lee. It was Dave, as a member of the Data Access Working Group (DAWG), that coined the acronym SPARQLSPARQL Protocol and RDF Query Language (which incidentally solved another a naming problem).

The topics covered include how he got involved in these technologies in the first place, Redland and a couple of Dave’s experiments: the triplr service (“Stuff in, triples out”) and Flickcurl, a C library for the Flickr API. He offers his thoughts around some of the technologies and specifications he’s been involved in, along with other developments around the Web – check the list of links below. While having limits on what he could say in public, he also mentioned the use of RDF inside Yahoo! (more announcements on the way apparently).

There are a couple of quotes I can’t resist pulling out. I asked Dave about how well he thought the Semantic Web was coming along, and he pointed out that, like the Web, there wouldn’t be any specific point in time at which one might say it was a success. But he added:

For me, in the work we’re doing with Yahoo! internally, it’s already a success…we’ve done work better, faster and we’ve done things we couldn’t do before because we were using this style of technology. It’s not always publicly visible because it’s a kind of data technology…but it’s a success for Yahoo! content and metadata problems I’ve been working on.

Dave also talks a little about open data, a nice line being:

The reason I got involved with the Semantic Web was…I wanted control of my data.

If you want to hear more, Dave will be speaking at the Semantic Technology Conference in San Jose in May, where he plans to go deeper into why Yahoo! is using RDF, the benefits and more detail of their projects.

One final quote:

Have fun with the Semantic Web…it’s about connecting things together,
about getting the jobs done.

During the conversation, we refer to the following resources;

Norman Gray Talks with Talis about Astronomy and the Semantic Web

Norman-Gray 100X150.Shkl

In our latest Talking with Talis podcast I talk with Norman Gray of the European Virtual Observatory’s Technology Centre (Euro-VOTech). We talk about Astronomy, and some of the ways in which Semantic Web ideas and methods are beginning to play a role.

Listen Now

Download MP3 [67 mins, 32Mb]

During the conversation, we refer to the following resources;

This conversation was conducted using iChat on Monday 10 March, recorded with Ecamm Network‘s Conference Recorder, and edited on a Mac with Garageband.

For further Talking with Talis podcasts on the emerging Web of Data, see here.

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A Chat with Richard Cyganiak

Latest recording on technical matters is a chat with Richard Cyganiak, who’s currently working on the Sindice Semantic Web search engine, though is probably best known for his leading role in the Linking Open Data project (maintaining the cloud diagram :-)

In the podcast Richard describes various technical details of these projects, and talks about the nature of data on the Web in the wild, as RDF, microformats and increasingly RDFa. He also discusses some of the practical issues in mapping existing databases to the Semantic Web (the kind of techniques Tim Berners-Lee mentioned in his podcast
with Paul a few weeks ago).

Richard naturally mentions the principles of Linked Data :

  1. Use URIs as names for things
  2. Use HTTP URIs so that people can look up those names.
  3. When someone looks up a URI, provide useful information.
  4. Include links to other URIs. so that they can discover more things.

Listen Now

Download MP3 [47 mins, 44Mb]

Inigo Surguy Talks with Talis about 67 Bricks and the Semantic Web

Inigo Surguy

In our latest Talking with Talis podcast I talk with Inigo Surguy of 67 Bricks. We discuss Inigo’s experience consulting for companies in the biomedical and pharmaceutical industries, and consider the extent to which his clients know that they require a ‘semantic web’ solution to their problems.

Listen Now

Download MP3 [43 mins, 21Mb]

During the conversation, we refer to the following resources;

This conversation was conducted using Skype on Friday 7 December, recorded with Ecamm Network‘s Call Recorder for Skype, and edited on a Mac with Garageband.

For further Talking with Talis podcasts on the emerging Web of Data, see here.

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Andreas Harth Talks with Talis about the Semantic Web Search Engine and SIOC

Andreas Harth

In our latest Talking with Talis podcast I talk with Andreas Harth of DERI in Galway, Ireland. We talk about Andreas’ work on the Semantic Web Search Engine (‘swizzy’), before discussing DERI’s involvement with the evolving SIOC project.

Listen Now

Download MP3 [42 mins, 20Mb]

During the conversation, we refer to the following resources;

This conversation was conducted using Skype on Monday 10 December, recorded with Ecamm Network‘s Call Recorder for Skype, and edited on a Mac with Garageband.

For further Talking with Talis podcasts on the emerging Web of Data, see here.

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Mathieu d’Aquin Talks with Talis about Networked Ontologies and the Semantic Web

Mathieu

In our latest Talking with Talis podcast I talk with Mathieu d’Aquin, a post-doctoral research fellow at the Open University’s Knowledge Media Institute (KMi). We talk about Mathieu’s work, and explore the relevance of networked ontologies to the increasingly important subject of Semantic Web search.

Listen Now

Download MP3 [46 mins, 22Mb]

During the conversation, we refer to the following resources;

This conversation was conducted using Skype on Friday 7 December, recorded with Ecamm Network‘s Call Recorder for Skype, and edited on a Mac with Garageband.

For further Talking with Talis podcasts on the emerging Web of Data, see here.

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Eyal Oren Talks with Talis about Sindice and tagging on the Semantic Web

Eyal Oren

In our latest Talking with Talis podcast I talk with Eyal Oren, who has just completed his Ph.D at the Galway (Ireland) site of the Digital Enterprise Research Institute (DERI). We talk about activity at DERI, touching upon their Sindice semantic web index, their work on SIOC, and the potential of data linked across the open web. We conclude by taking an early look at Eyal’s new job at VU Amsterdam in the Netherlands.

Listen Now

Download MP3 [49 mins, 23Mb]

During the conversation, we refer to the following resources;

This conversation was conducted using Skype on Wednesday 5 December, recorded with Ecamm Network‘s Call Recorder for Skype, and edited on a Mac with Garageband.

For further Talking with Talis podcasts on the emerging Web of Data, see here.

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Bill Hutchison Talks with Talis about classification, Wordmap, and the role of the Semantic Web

Bill Hutchison

In our latest Talking with Talis podcast, I talk with Wordmap founder Bill Hutchison. We discuss the relationship between folksonomy, taxonomy, thesaurus and ontology, and draw upon Bill’s experience in the market to explore changes in the users and usage for these technologies.

Listen Now

Download MP3 [52 mins, 25Mb]

During the conversation, we refer to the following resources;

This conversation was conducted using Skype on Monday 26 November, recorded with Ecamm Network‘s Call Recorder for Skype, and edited on a Mac with Garageband.

For further Talking with Talis podcasts on the emerging Web of Data, see here.

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