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Re: [Ann] LODStats - Real-time Data Web Statistics

From: Richard Cyganiak <richard@cyganiak.de>
Date: Thu, 2 Feb 2012 11:32:03 +0000
Cc: Linking Open Data <public-lod@w3.org>, pedantic-web@googlegroups.com
Message-Id: <2D5FF5DC-CC17-4EE2-9DDD-ADA455910263@cyganiak.de>
To: Sören Auer <auer@informatik.uni-leipzig.de>
Congrats, this is awesome.

So you're automatically harvesting 200+ datasets by starting with the LOD Cloud metadata we're collecting on the Data Hub (ex CKAN), leading to a total of almost 2B triples.

Also fascinating is the list of 250 datasets that couldn't be automatically harvested due to SPARQL errors or errors in the RDF dumps:
http://stats.lod2.eu/rdfdoc/?errors=1
This is an excellent interoperability testbed and should be closely studied by anyone who's interested in the state of actual interoperability on the web of linked data (hence a CC to the Pedantic Web Group).

One request: on http://stats.lod2.eu/stats it shows top 5 lists of various sorts (top vocabularies, classes, languages etc). Would it be possible to allow drill-down to see longer lists, let's say top 100 or top 1000? These lists are great, but the really interesting stuff often happens in the midfield.

I see VoID summaries for each individual dataset. Are they aggregated somewhere into a single file that I could SPARQL?

Also, how do I cite your work in publications? Is there a paper (or at least tech report) yet?

Again, congrats to all involved, this is great work.

Best,
Richard


On 2 Feb 2012, at 11:04, Sören Auer wrote:

> Dear all,
> 
> We are happy to announce the first public *release of LODStats*.
> 
> LODStats is a statement-stream-based approach for gathering
> comprehensive statistics about datasets adhering to the Resource
> Description Framework (RDF). LODStats was implemented in Python and
> integrated into the CKAN dataset metadata registry [1]. Thus it helps to
> obtain a comprehensive picture of the current state of the Data Web.
> 
> More information about LODStats (including its open-source
> implementation) is available from:
> 
> http://aksw.org/projects/LODStats
> 
> A demo installation collecting statistics from all LOD datasets
> registered on CKAN is available from:
> 
> http://stats.lod2.eu
> 
> We would like to thank the AKSW research group [2] and LOD2 project [3]
> members for their suggestions. The development LODStats was supported by
> the FP7 project LOD2 (GA no. 257943).
> 
> On behalf of the LODStats team,
> 
> Sören Auer, Jan Demter, Michael Martin, Jens Lehmann
> 
> [1] http://ckan.net
> [2] http://aksw.org
> [3] http://lod2.eu
> 
Received on Thursday, 2 February 2012 11:32:48 UTC

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