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Re: [dady] Dataset Dynamics meet-up at WWW2010

From: Michael Hausenblas <michael.hausenblas@deri.org>
Date: Wed, 28 Apr 2010 09:49:21 +0100
To: Sandro Hawke <sandro@w3.org>
CC: Linked Data community <public-lod@w3.org>, Jürgen Umbrich <Juergen.Umbrich@deri.org>, dady <dataset-dynamics@googlegroups.com>
Message-ID: <C7FDB521.FCB5%michael.hausenblas@deri.org>

Sandro,

(funny, I posted this last Friday and it showed up only yesterday ...)

> I think for the use cases I have in mind (large scale, ad hoc, real-time
> mirroring of RDF), a key requirement is constant time (per triple) to
> apply deltas, including maintaining a secure hash.  I was happy to see I
> could (I think) meet this with some tweaking of blank nodes.  I sketched
> both a delta format (gruf) and a subscription protocol (websub), which
> are separate. 
> 
> Rough specs are here:
>    http://websub.org/wiki/GRUF
>    http://websub.org/wiki/Spec

This looks great, thanks! It would be interesting to learn more about the
status of this project (are implementations available, etc.) and your plans
with it.

Indeed, as I recently wrote [1], there are plenty of approaches and
proposals out there and I think the time is ripe to sit together, get more
practical experience in implementing and deploying stuff.

I hope you can make it to the Dataset Dynamics meeting [2] and introduce
your proposal to the community. I'll sync with Juergen to catch up.

Cheers,
      Michael

[1] http://blog.semantic-web.at/2010/04/26/a-dynamic-web-of-data/
[2] http://esw.w3.org/DatasetDynamics/Meetings

-- 
Dr. Michael Hausenblas
LiDRC - Linked Data Research Centre
DERI - Digital Enterprise Research Institute
NUIG - National University of Ireland, Galway
Ireland, Europe
Tel. +353 91 495730
http://linkeddata.deri.ie/
http://sw-app.org/about.html



> From: Sandro Hawke <sandro@w3.org>
> Reply-To: dady <dataset-dynamics@googlegroups.com>
> Date: Tue, 27 Apr 2010 14:53:39 -0400
> To: dady <dataset-dynamics@googlegroups.com>
> Cc: Linked Data community <public-lod@w3.org>, Jürgen Umbrich
> <Juergen.Umbrich@deri.org>
> Subject: Re: [dady] Dataset Dynamics meet-up at WWW2010
> 
> 
>> Changes in Linked Data sources (dataset dynamics) and how to deal with it
>> are an important and emerging issue [1][2].
>> 
>> As already mentioned, there will be a dataset dynamics meet-up at WWW2010. I
>> first planned to register a BoF, but it is still unclear if this is possible
>> [3].
>> 
>> I'd now propose to have a break-out session at the W3C LOD Track [4] - as I
>> won't be able to make it to WWW, Juergen Umbrich (in CC) would take care of
>> the local organisation.
> 
> Sounds like a good idea, although I don't know what else might be on the
> menu.
> 
> So, I just learned of the "dataset dynamics" term and community last
> week (from Michael), but I've been thinking about this for many years.
> I got inspired and sketched out a design a few months ago, which I think
> is pretty good.  I've been hoping to return to it some day soon, but if
> we're talking about this Thursday, I might was well share the drafts
> now.
> 
> I think for the use cases I have in mind (large scale, ad hoc, real-time
> mirroring of RDF), a key requirement is constant time (per triple) to
> apply deltas, including maintaining a secure hash.  I was happy to see I
> could (I think) meet this with some tweaking of blank nodes.  I sketched
> both a delta format (gruf) and a subscription protocol (websub), which
> are separate. 
> 
> Rough specs are here:
>    http://websub.org/wiki/GRUF
>    http://websub.org/wiki/Spec
> 
>       -- Sandro
> 
>> Cheers,
>>       Michael
>> 
>> [1] http://esw.w3.org/DatasetDynamics
>> [2] 
>> http://data-gov.tw.rpi.edu/wiki/TWC_Data-gov_Vocabulary_Proposal#Change_of_d
>> ataset
>> [3] http://twitter.com/WWW2010/status/12452736301
>> [4] http://esw.w3.org/Camps:LODCampW3CTrack#breakout
>> 
>> -- 
>> Dr. Michael Hausenblas
>> LiDRC - Linked Data Research Centre
>> DERI - Digital Enterprise Research Institute
>> NUIG - National University of Ireland, Galway
>> Ireland, Europe
>> Tel. +353 91 495730
>> http://linkeddata.deri.ie/
>> http://sw-app.org/about.html
>> 
>> 
>> 
>> 
>> -- 
>> Subscription settings: http://groups.google.com/group/dataset-dynamics/subscr
>> ibe?hl=en
Received on Wednesday, 28 April 2010 08:49:57 UTC

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