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Re: Subsetting data

From: Peter Baumann <p.baumann@jacobs-university.de>
Date: Thu, 14 Jan 2016 10:26:56 +0100
To: Phil Archer <phila@w3.org>, Manolis Koubarakis <koubarak@di.uoa.gr>, "'public-sdw-comments@w3.org'" <public-sdw-comments@w3.org>, Annette Greiner <amgreiner@lbl.gov>, Eric Stephan <ericphb@gmail.com>, "Tandy, Jeremy" <jeremy.tandy@metoffice.gov.uk>, <public-dwbp-comments@w3.org>
Message-ID: <569769E0.1000508@jacobs-university.de>
Hi community,
lots of clarifications and discussion going on! Just reminding of the
suggestions posted below.

On 2016-01-01 15:53, Peter Baumann wrote:
> have added comments and filled placeholders. As I do not have write
> permissionsthis has created a fork:
> https://github.com/w3c/sdw/compare/gh-pages...pebau:patch-1
> -Peter
> On 2015-12-30 19:31, Phil Archer wrote:
>> At various times in recent months I have promised to look into the topic of
>> persistent identifiers for subsets of data. This came up at the SDW F2F in
>> Sapporo but has also been raised by Annette in DWBP. In between festive
>> activities I've been giving this some thought and have tried to begin to
>> commit some ideas to a page [1].
>> During the CEO-LD meeting, Jeremy pointed to OpenSearch as a possible way
>> forward, including its geo-temporal extensions defined by the OGC. There is
>> also the Linked Data API as a means of doing this, and what they both have in
>> common is that they offer an intermediate layer that turns a URL into a query.
>> How do you define a persistent identifier for a subset of a dataset? IMO you
>> mint a URI and say "this identifies a subset of a dataset" - and then provide
>> a means of programmatically going from the URI to a query that returns the
>> subset. As long as you can replace the intermediate layer with another one
>> that also returns the same subset, we're done.
>> The UK Government Linked Data examples tend to be along the lines of:
>> http://transport.data.gov.uk/id/stations
>> returns a list of all stations in Britain.
>> http://transport.data.gov.uk/id/stations/Manchester
>> returns a list of stations in Manchester
>> http://transport.data.gov.uk/id/stations/Manchester/Piccadilly
>> identifies Manchester Piccadilly station.
>> All of that data of course comes from a single dataset.
>> Does this work in the real worlds of meteorology and UBL/PNNL?
>> Phil.
>> [1] https://github.com/w3c/sdw/blob/gh-pages/subsetting/index.md

Dr. Peter Baumann
 - Professor of Computer Science, Jacobs University Bremen
   mail: p.baumann@jacobs-university.de
   tel: +49-421-200-3178, fax: +49-421-200-493178
 - Executive Director, rasdaman GmbH Bremen (HRB 26793)
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Received on Thursday, 14 January 2016 09:27:47 UTC

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