Collaborations with National Libraries over thesauri and authority control

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Andrea Zanni

21 Jan 2014 21 Jan '14

2:34 p.m.

Hi all, I hope you are well. I would like to ask you if you are aware of any project concerning the collaboration of a National Library with Wikipedia, regarding things as theasuri and authority control. Last summer, the National Library of Florence (BNCF) approached Wikimedia Italia for a project of synchronization of the Italian thesaurus (thesaurus del Nuovo Soggettario [1]) with Wikipedia. They thesaurus linked to Wikipedia, but Wikipedia didn't link back. We asked the community and then synchronized the links between the Italian Wikipedia and the BNCF Thesaurus (now around 8'000). The links were later uploaded within a property in Wikidata (see property:P508[2]), and are now recalled automatically by Template:Thesaurus BNCF[3] on it.wikipedia. Right now, the BNCF would be eager to know if other theasuri had the same idea, as for the multilingual nature of Wikidata it would be "easy" to link thesauri in different languages, per Wikidata. It is the very same idea that animated the VIAF project: right now, Wikidata contains several identifiers for people and books, being a "super-authority control" (as Max called it :-). Using Wikidata as a bridge/cross walk would be very important and fairly "cheap": synchronizing 2 different thesauri isn't normally a easy job, but Wikipedias have already done the difficult part. The BNCF team has been working in the past years to connect other subject authority control lists. At the time being, 4000 tems in Italian thesaurus link to their equivalent LCSH term, and the LSCH linked back in the last weeks, via SKOS/RDF. The BNCF is doing the same with the French authority control RAMEU [4], from BNF, and the European community one EUROVOC [5]. So, the question is: are you aware of any project like this? Does your library mantain a thesaurus and aiming to put that on Wikipedia/Wikidata? Aubrey [1] http://thes.bncf.firenze.sbn.it/ricerca.php [2] http://www.wikidata.org/wiki/Property:P508<http://www.google.com/url?q=h… [3] https://it.wikipedia.org/wiki/Template:Thesaurus_BNCF [4] http://data.bnf.fr/ [5] http://eurovoc.europa.eu/

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John Mark Ockerbloom

21 Jan 21 Jan

2:51 p.m.

New subject: Collaborations with National Libraries over thesauri and authority control

I'm building up a Wikipedia <-> LCSH crosswalk for the Forward to Libraries service that I maintain. Some of the crosswalk is automatically generated based on identical or similar headings; some of it is manually maintained in a "wikimap" file. That manual file currently has just over 6,000 entries, and is available as CC0 data from Github: https://github.com/JohnMarkOckerbloom/ftl/blob/master/data/wikimap Between the manual file, the automatic matchups, and the name correspondences provided by VIAF, my forwarding service can map between over 300,000 names and topical subjects in Wikipedia, LCSH, and LC name authorities. Folks are welcome to reuse my crosswalk file or contribute further updated to it. Or, if there's somewhere useful to embed this sort of information in Wikidata, I'm open to using that for getting or maintaining crosswalk data. John

Karen Coyle

4:27 p.m.

New subject: Collaborations with National Libraries over thesauri and authority control

Andrea, I look in wikidata and also in dbpedia, and it does not look like dbpedia is picking up the links that are added to wikidata (BNCF, Dewey, etc.). Since dbpedia is THE linked data hub, do you know if there are plans to include wikidata links in dbpedia? kc On 1/21/14, 6:34 AM, Andrea Zanni wrote:

...

Hi all, I hope you are well. I would like to ask you if you are aware of any project concerning the collaboration of a National Library with Wikipedia, regarding things as theasuri and authority control. Last summer, the National Library of Florence (BNCF) approached Wikimedia Italia for a project of synchronization of the Italian thesaurus (thesaurus del Nuovo Soggettario [1]) with Wikipedia. They thesaurus linked to Wikipedia, but Wikipedia didn't link back. We asked the community and then synchronized the links between the Italian Wikipedia and the BNCF Thesaurus (now around 8'000). The links were later uploaded within a property in Wikidata (see property:P508[2]), and are now recalled automatically by Template:Thesaurus BNCF[3] on it.wikipedia. Right now, the BNCF would be eager to know if other theasuri had the same idea, as for the multilingual nature of Wikidata it would be "easy" to link thesauri in different languages, per Wikidata. It is the very same idea that animated the VIAF project: right now, Wikidata contains several identifiers for people and books, being a "super-authority control" (as Max called it :-). Using Wikidata as a bridge/cross walk would be very important and fairly "cheap": synchronizing 2 different thesauri isn't normally a easy job, but Wikipedias have already done the difficult part. The BNCF team has been working in the past years to connect other subject authority control lists. At the time being, 4000 tems in Italian thesaurus link to their equivalent LCSH term, and the LSCH linked back in the last weeks, via SKOS/RDF. The BNCF is doing the same with the French authority control RAMEU [4], from BNF, and the European community one EUROVOC [5]. So, the question is: are you aware of any project like this? Does your library mantain a thesaurus and aiming to put that on Wikipedia/Wikidata? Aubrey [1] http://thes.bncf.firenze.sbn.it/ricerca.php [2] http://www.wikidata.org/wiki/Property:P508 <http://www.google.com/url?q=http%3A%2F%2Fwww.wikidata.org%2Fwiki%2FProperty%3AP508&sa=D&sntz=1&usg=AFQjCNES2Kai1a2kHor83XRugNKEzQ6Ntg> [3] https://it.wikipedia.org/wiki/Template:Thesaurus_BNCF [4] http://data.bnf.fr/ [5] http://eurovoc.europa.eu/ _______________________________________________ Libraries mailing list Libraries(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/libraries

-- Karen Coyle kcoyle(a)kcoyle.net http://kcoyle.net m: 1-510-435-8234 skype: kcoylenet

Edward Summers

4:46 p.m.

New subject: Collaborations with National Libraries over thesauri and authority control

Unless something has changed radically, dbpedia is read-only. Assertions get into dbpedia by adding them to Wikipedia, and (after the wikipedia dumps have gone through the sausage grinder) linked data comes out the other side. Perhaps someday dbpedia will start loading assertions from wikidata as well. It should be easier since RDF dumps for Wikidata are available. It also looks like the relationship between dbpedia and wikidata is on the agenda for the first dbpedia community meeting [2] happening in about a week. I agree with Andrea that Wikidata is the logical place to do this work. It’s not like the Wikipedia community doesn’t have its problems; but they are lightyears ahead of dbpedia in terms of building community, infrastructure and funding around open access data. //Ed [1] http://www.mail-archive.com/wikidata-l@lists.wikimedia.org/msg02553.html [2] http://wiki.dbpedia.org/meetings/Amsterdam2014 On Jan 21, 2014, at 11:27 AM, Karen Coyle <kcoyle(a)kcoyle.net> wrote:

...

Hi all, I hope you are well. I would like to ask you if you are aware of any project concerning the collaboration of a National Library with Wikipedia, regarding things as theasuri and authority control. Last summer, the National Library of Florence (BNCF) approached Wikimedia Italia for a project of synchronization of the Italian thesaurus (thesaurus del Nuovo Soggettario [1]) with Wikipedia. They thesaurus linked to Wikipedia, but Wikipedia didn't link back. We asked the community and then synchronized the links between the Italian Wikipedia and the BNCF Thesaurus (now around 8'000). The links were later uploaded within a property in Wikidata (see property:P508[2]), and are now recalled automatically by Template:Thesaurus BNCF[3] on it.wikipedia. Right now, the BNCF would be eager to know if other theasuri had the same idea, as for the multilingual nature of Wikidata it would be "easy" to link thesauri in different languages, per Wikidata. It is the very same idea that animated the VIAF project: right now, Wikidata contains several identifiers for people and books, being a "super-authority control" (as Max called it :-). Using Wikidata as a bridge/cross walk would be very important and fairly "cheap": synchronizing 2 different thesauri isn't normally a easy job, but Wikipedias have already done the difficult part. The BNCF team has been working in the past years to connect other subject authority control lists. At the time being, 4000 tems in Italian thesaurus link to their equivalent LCSH term, and the LSCH linked back in the last weeks, via SKOS/RDF. The BNCF is doing the same with the French authority control RAMEU [4], from BNF, and the European community one EUROVOC [5]. So, the question is: are you aware of any project like this? Does your library mantain a thesaurus and aiming to put that on Wikipedia/Wikidata? Aubrey [1] http://thes.bncf.firenze.sbn.it/ricerca.php [2] http://www.wikidata.org/wiki/Property:P508 <http://www.google.com/url?q=http%3A%2F%2Fwww.wikidata.org%2Fwiki%2FProperty%3AP508&sa=D&sntz=1&usg=AFQjCNES2Kai1a2kHor83XRugNKEzQ6Ntg> [3] https://it.wikipedia.org/wiki/Template:Thesaurus_BNCF [4] http://data.bnf.fr/ [5] http://eurovoc.europa.eu/ _______________________________________________ Libraries mailing list Libraries(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/libraries

-- Karen Coyle kcoyle(a)kcoyle.net http://kcoyle.net m: 1-510-435-8234 skype: kcoylenet _______________________________________________ Libraries mailing list Libraries(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/libraries

Karen Coyle

5:11 p.m.

New subject: Collaborations with National Libraries over thesauri and authority control

Ed, yes, that's what I understand as well. At a recent meeting at Wikimedia in SF there was side-talk of the intention of integrating Wikidata with Wikipedia, although it seemed still fuzzy. (And it sounds to me like it'll be a huge job!) I was hoping there was a planning document or statement somewhere. Although I've been a wikidata editor for a while, I must admit I have only a vague idea of the plans and timeline. I'll poke around. kc On 1/21/14, 8:46 AM, Edward Summers wrote:

...

Hi all, I hope you are well. I would like to ask you if you are aware of any project concerning the collaboration of a National Library with Wikipedia, regarding things as theasuri and authority control. Last summer, the National Library of Florence (BNCF) approached Wikimedia Italia for a project of synchronization of the Italian thesaurus (thesaurus del Nuovo Soggettario [1]) with Wikipedia. They thesaurus linked to Wikipedia, but Wikipedia didn't link back. We asked the community and then synchronized the links between the Italian Wikipedia and the BNCF Thesaurus (now around 8'000). The links were later uploaded within a property in Wikidata (see property:P508[2]), and are now recalled automatically by Template:Thesaurus BNCF[3] on it.wikipedia. Right now, the BNCF would be eager to know if other theasuri had the same idea, as for the multilingual nature of Wikidata it would be "easy" to link thesauri in different languages, per Wikidata. It is the very same idea that animated the VIAF project: right now, Wikidata contains several identifiers for people and books, being a "super-authority control" (as Max called it :-). Using Wikidata as a bridge/cross walk would be very important and fairly "cheap": synchronizing 2 different thesauri isn't normally a easy job, but Wikipedias have already done the difficult part. The BNCF team has been working in the past years to connect other subject authority control lists. At the time being, 4000 tems in Italian thesaurus link to their equivalent LCSH term, and the LSCH linked back in the last weeks, via SKOS/RDF. The BNCF is doing the same with the French authority control RAMEU [4], from BNF, and the European community one EUROVOC [5]. So, the question is: are you aware of any project like this? Does your library mantain a thesaurus and aiming to put that on Wikipedia/Wikidata? Aubrey [1] http://thes.bncf.firenze.sbn.it/ricerca.php [2] http://www.wikidata.org/wiki/Property:P508 <http://www.google.com/url?q=http%3A%2F%2Fwww.wikidata.org%2Fwiki%2FProperty%3AP508&sa=D&sntz=1&usg=AFQjCNES2Kai1a2kHor83XRugNKEzQ6Ntg> [3] https://it.wikipedia.org/wiki/Template:Thesaurus_BNCF [4] http://data.bnf.fr/ [5] http://eurovoc.europa.eu/ _______________________________________________ Libraries mailing list Libraries(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/libraries

_______________________________________________ Libraries mailing list Libraries(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/libraries

-- Karen Coyle kcoyle(a)kcoyle.net http://kcoyle.net m: 1-510-435-8234 skype: kcoylenet

Andrea Zanni

7:22 p.m.

New subject: Collaborations with National Libraries over thesauri and authority control

On Tue, Jan 21, 2014 at 6:11 PM, Karen Coyle <kcoyle(a)kcoyle.net> wrote:

...

intention of integrating Wikidata with Wikipedia,

Well, Wikipedia now is in the process of integration with Wikidata. That means: * Wikidata has the right infrastructure to work with "data" and "factoids" * it is possible to call a factoid (a statement) from Wikidata to Wikipedia, via template * it all depends by the Wikipedia community. It is the community that decides if she wants the infobox to be relying on data directly on Wikipedia or on Wikidata. The example I made in my mail (the Template:Thesaurus_BNCF [1]) is a good one: it is a template that you put in a Wikipedia page, for example "Godel's theorem". There is a thesaurus page too dedicated to the "Godel's theorem". The template fetch the link present on Wikidata and generate the link to the thesaurus page. This means that in "Godel's theorem" Wikipedia page you don't have the link "stored" anywhere: it is fetched via Wikidata. This could be done with any data present on Wikidata, of course. As I said, it is a community decision to change the relevant templates. Aubrey [1] https://it.wikipedia.org/wiki/Template:Thesaurus_BNCF PS: I hope the example was clear enough, it's not very simple to explain it in Italian, and I'm not sure I used the right terms in English :-)

Karen Coyle

8:53 p.m.

New subject: Collaborations with National Libraries over thesauri and authority control

On 1/21/14, 11:22 AM, Andrea Zanni wrote:

...

The example I made in my mail (the Template:Thesaurus_BNCF [1]) is a good one: it is a template that you put in a Wikipedia page, for example "Godel's theorem". There is a thesaurus page too dedicated to the "Godel's theorem". The template fetch the link present on Wikidata and generate the link to the thesaurus page.

OK, I had a look at that. The template is specific to it.wikipedia.org, which why I wasn't seeing it under "Godel's theorem". You can see it in the it.wp page for "biologia". [1] It probably doesn't make sense to link the Italian subject headings to English WP, but I see a good use case for creating crosswalks if wikidata could be used by itself to access the classifications and headings and navigate between them. There has been a fair amount of talk of creating cross-walks between subject headings and classification numbers, which would give different kinds of navigation through the WP topics. Are there ways that we could automate the linking of library subject headings to WP topics, and then automate the creation of templates on pages where wikidata has the data? This doesn't seem to me to be a viable manual task. kc [1] https://it.wikipedia.org/wiki/Biologia

...

This means that in "Godel's theorem" Wikipedia page you don't have the link "stored" anywhere: it is fetched via Wikidata. This could be done with any data present on Wikidata, of course. As I said, it is a community decision to change the relevant templates. Aubrey [1] https://it.wikipedia.org/wiki/Template:Thesaurus_BNCF PS: I hope the example was clear enough, it's not very simple to explain it in Italian, and I'm not sure I used the right terms in English :-)

-- Karen Coyle kcoyle(a)kcoyle.net http://kcoyle.net m: 1-510-435-8234 skype: kcoylenet

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Andrea Zanni
Edward Summers
John Mark Ockerbloom
Karen Coyle