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RE: Use the void and schema.org [Was; Re: LODAtlas 1.0 release - Browsing Linked Data Catalogs]

From: Armando Stellato <stellato@uniroma2.it>
Date: Thu, 4 Oct 2018 12:42:52 +0000
To: "Gray, Alasdair J G" <A.J.G.Gray@hw.ac.uk>, "emmanuel.pietriga@inria.fr" <emmanuel.pietriga@inria.fr>
CC: Jerven Bolleman <me@jerven.eu>, Linking Open Data <public-lod@w3.org>
Message-ID: <DB6PR1001MB1013B028F514FC5E1282AF5EC7EA0@DB6PR1001MB1013.EURPRD10.PROD.OUTLOOK.COM>
Just marginal on the main topic here, however I thought it good to put my two cents in support of the automatic generation of metadata profiles for datasets.

The Collaborative editor for OWL ontologies, SKOS(/XL) thesauri and OntoLex lexicons VocBench 3 [1] allows for the semi-automatic generation of dataset metadata profiles [2].
The system prompts for generic metadata (title, homepage etc..) about the dataset, while everything that can be computed over the data is generated automatically.

Currently there are generators for:

1.      VoID and LIME [3,4] descriptions. LIME is the LInguistic MEtadata module developed in the context of the OntoLex specification, though as a metadata vocabulary it can be used for any kind of dataset, providing statistical and qualitative information about the lexical asset of datasets

2.      DCAT/DCAT-AP [5] profiles

3.      ADMS

and they are loaded as implementation of an extension point, so other implementations could be added



[1] http://vocbench.uniroma2.it/
[2]  http://vocbench.uniroma2.it/doc/user/metadata_vocabularies.jsf
[3] https://www.w3.org/2016/05/ontolex/#metadata-lime
[4] https://link.springer.com/chapter/10.1007/978-3-319-18818-8_20
[5] https://joinup.ec.europa.eu/solution/dcat-application-profile-data-portals-europe
[6] https://www.w3.org/TR/vocab-adms/

From: Gray, Alasdair J G <A.J.G.Gray@hw.ac.uk>
Sent: Thursday, October 4, 2018 1:58 PM
To: emmanuel.pietriga@inria.fr
Cc: Jerven Bolleman <me@jerven.eu>; Linking Open Data <public-lod@w3.org>
Subject: Re: Use the void and schema.org [Was; Re: LODAtlas 1.0 release - Browsing Linked Data Catalogs]

On 4 Oct 2018, at 12:00, emmanuel.pietriga@inria.fr<mailto:emmanuel.pietriga@inria.fr> wrote:

- Has VoID achieved good coverage yet? (I remember reading that few datasets were exposing VoID descriptions, but that may have been several years ago and things might have changed)

Harvesting VoIDs/schema.org<https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fschema.org&data=02%7C01%7C%7Cc3899e852ccc420fe4b508d629f19243%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636742514843643334&sdata=jKiAizCqXOW8W%2FcZjgdNo7KEBp1cFOpyCbZtX3BZkHw%3D&reserved=0> would be a good way of encouraging up take. It is likely that there will be a big increase in schema.org<https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fschema.org&data=02%7C01%7C%7Cc3899e852ccc420fe4b508d629f19243%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636742514843643334&sdata=jKiAizCqXOW8W%2FcZjgdNo7KEBp1cFOpyCbZtX3BZkHw%3D&reserved=0> markup now that Google have released a dataset search tool.

- How do we get those decentralized VoID descriptions? Is there a crawling service somewhere that would give us access to such descriptions?

Starting, as Jerven suggested, by allowing people to provide you the URI of the VoID, but also following the links in VoIDs to other datasets.


Alasdair J G Gray
Associate Professor in Computer Science,
School of Mathematical and Computer Sciences
Heriot-Watt University, Edinburgh, UK.

Email: A.J.G.Gray@hw.ac.uk<mailto:A.J.G.Gray@hw.ac.uk>
Web: http://www.macs.hw.ac.uk/~ajg33
ORCID: http://orcid.org/0000-0002-5711-4872
Office: Earl Mountbatten Building 1.39
Twitter: @gray_alasdair


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Received on Thursday, 4 October 2018 12:43:18 UTC

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