- From: Steven Adler <adler1@us.ibm.com>
- Date: Tue, 25 Mar 2014 07:57:46 -0700
- To: Christophe Guéret <christophe.gueret@dans.knaw.nl>
- Cc: Augusto Herrmann <augusto.herrmann@gmail.com>, "hellmatic@gmail.com" <hellmatic@gmail.com>, public-dwbp-wg <public-dwbp-wg@w3.org>
- Message-ID: <OF58B31ECB.104DA900-ON88257CA6.004FE74F-88257CA6.00523140@us.ibm.com>
Those are good comments. The graph data market is pretty small today, with interest pretty evenly split between RDF and Property Graph. There are some things Graph databases can do, especially in social networking examples, that perform much better than traditional databases. But no one today is using RDF or Graph Data in any Open Data implementation and no one has any plans to do so. Cities and State governments have limited budgets and resources and very limited skills. And RDF and Graph are not the only ways to skin this cat... Does Data Quality need linked data vocabularies to offer value? Wouldn't standardized lineage and certification suffice? I can see the value of graph search for Data Comparability, but well defined metadata would also take Open Data to the next level. If we only recommend RDF and Linked Data as Best Practices for Data Publishing and only a small fraction of the market can use them, what good have we done? I want to make sure that the work we do has maximum impact and so far use case evidence does not convince me that RDF and Linked Data alone will get us there. Best Regards, Steve Motto: "Do First, Think, Do it Again" From: Christophe Guéret <christophe.gueret@dans.knaw.nl> To: Steven Adler/Somers/IBM@IBMUS Cc: Christophe Gueret <christophe.gueret@dans.knaw.nl>, Augusto Herrmann <augusto.herrmann@gmail.com>, "hellmatic@gmail.com" <hellmatic@gmail.com>, public-dwbp-wg <public-dwbp-wg@w3.org> Date: 03/25/2014 07:31 AM Subject: Re: Data "on" the Web vs Data "in" the Web Hoi Steve, Last year Facebook announced its graph search function, choosing the power of semantic search without RDF. What I have learned from this WG experience so far is that W3C doesn't really create open standards. It creates and enhances and promotes W3C standards. I've some difficulties to follow you on that one, aren't W3C standards open ? The rest of the world often thanks W3C for its ideas and then implements those ideas in different ways. I thought this was rather common in industry. People copy each other and spend time re-branding the same ideas, also probably to go around patents while re-using things that are indeed good ideas. E.g. "retina display" versus "hd screen", "facetime" VS "hangout" VS "videoconference", "like" VS "+1", google's graph VS facebook's graph, etc ... Can we, this WG, imagine creating or recommending standards that are objective - that describe things to do that anyone can do with or without RDF? We'll see... :) Regards, Christophe Regards, Steve From: Christophe Guéret [christophe.gueret@dans.knaw.nl] Sent: 03/24/2014 04:01 PM CET To: Steven Adler Cc: Christophe Gueret <christophe.gueret@dans.knaw.nl>; Augusto Herrmann <augusto.herrmann@gmail.com>; "hellmatic@gmail.com" <hellmatic@gmail.com>; public-dwbp-wg <public-dwbp-wg@w3.org> Subject: Re: Data "on" the Web vs Data "in" the Web So now we are creating W3C standards for publishing data as unstructured text on websites? The message of this presentation is actually quite the opposite ;-) Instead the idea is to use the Web as platform to host the data. That is, instead of publishing datasets as resources use URIs and HTTP to gain access to specific (structured !) elements of data sets which can be linked and re-used. There has to be a structure and there has to be links possibility but this does not mean that RDF is the only model that will work out and that RDF/XML is the only way to serialise data. Is that what's in the charter? Honestly I have always found the charter to be confusing. Maybe it was intended to be machine readable. ;- :-) Cheers, Christophe Regards, Steve From: Christophe Guéret [christophe.gueret@dans.knaw.nl] Sent: 03/24/2014 03:42 PM CET To: Steven Adler Cc: Augusto Herrmann <augusto.herrmann@gmail.com>; "hellmatic@gmail.com" <hellmatic@gmail.com>; DWBP Public List <public-dwbp-wg@w3.org> Subject: Re: Data "on" the Web vs Data "in" the Web Hoi, I think this (semantic !) discussion around data "on" and "in" can be a good way to let people see the difference being putting a link to a resource which is a data set dump ("on") and providing some kind of API ("in") - whatever the technologies of the API are. Lately, I've been using that argument to point people to the fact that downloading dumps of data in various forms is like doing document sharing prior to the Web. Coming them to the conclusion that we should publish our data as Web sites. There is a bit of a focus set on SemWeb technologies for that but, really, we could think of many other ways to reach the same result. Here are the slides, comments are most welcome ;-) : http://www.slideshare.net/cgueret/linking-knowledge-spaces Cheers, Christophe On 20 March 2014 15:17, Steven Adler <adler1@us.ibm.com> wrote: Augusto, I am interested in learning about HAL and look forward to this discussion. But I am a bit concerned with the way you phrase these sentences: "There should be a way to at first publish open data resources that are linked, but without rdf, such as in xml and json. Then, at a later date, improve with a descriptive rdf vocabulary and expressed in rdf to become linked open data (preferrably, if possible, keeping compatibility with clients that implemented reading the previous non-semantic version)." To me this reads that non-rdf methods like xml and json are accommodations to constituents who "have not yet seen the light of RDF" and I want to make sure we are providing best practices standards recommendations to the world that exists rather than the "perfect world" we would like someday to exist. At IBM, we make software that runs on many operating systems. Of course we employ people with preferences for OSX, Linux, Systemz, AIX, Unix, and even Windows. Heck, many ATMS around the world still run on OS/2... But because our customers run all of the above we supply them with all of the above solutions. Can we agree on an "all of the above" approach to DWBP (without suggesting that everything someday becomes RDF) too? Best Regards, Steve Motto: "Do First, Think, Do it Again" From: Augusto Herrmann <augusto.herrmann@gmail.com> To: DWBP Public List <public-dwbp-wg@w3.org> Date: 03/19/2014 01:16 PM Subject: Re: Data "on" the Web vs Data "in" the Web Hi, this is a very important point, Ig. My thoughts exactly when I suggested we look at the Hypertext Application Language (HAL) proposal [1] in the first meeting. It was in fact an invitation for us to think about data "in" the web, as in "part of the web itself". We don't necessarily have to follow HAL, but should look at is as a source of inspiration. The way links are represented in resources in Subbu Allamaraju's RESTful Webservices Cookbook [2] is another source of inspiration. We should think of standard ways to insert links to other data into many common open data formats, such as xml, json and maybe even csv.. Of course this linking requirement is satisfied by linked open data and rdf, but sometimes organizations have some data and are willing to pubilsh, but initially do not have the necessary resources (i.e. people, knowledge) to develop vocabularies to describe the data. However, interlinking among resources of a dataset, or even linking to resources in other datasets is somewhat easier to do. There should be a way to at first publish open data resources that are linked, but without rdf, such as in xml and json. Then, at a later date, improve with a descriptive rdf vocabulary and expressed in rdf to become linked open data (preferrably, if possible, keeping compatibility with clients that implemented reading the previous non-semantic version). Perhaps this could become a use case for the Best Practices document. [1] http://tools.ietf.org/html/draft-kelly-json-hal [2] http://books.google.com.br/books?id=LDuzpQlVuG4C All the best, Augusto Herrmann Open Data Team - Ministry of Planning - Brazil On Mon, Mar 17, 2014 at 9:28 AM, Ig Ibert Bittencourt <ig.ibert@gmail.com> wrote: Hello DWBP, I was reading again about the 5 Start for Open Data and I saw this affirmation below about 3 starts Web Data [1] that I think would be interesting to share with this WG. Excellent! The data is not only available via the Web but now everyone can use the data easily. On the other hand, it's still data on the Web and not data in the Web. With regards this affirmation, you can see more details in [2] and [3], but not that much. [1] http://5stardata.info/ [2] http://webofdata.wordpress.com/2010/03/01/data-and-the-web-choices/ [3] http://lists.xml.org/archives/xml-dev/200211/msg01290.html Best, Ig Ibert Bittencourt Professor Adjunto III - Universidade Federal de Alagoas (UFAL) Vice-Coordenador da Comissão Especial de Informática na Educação Líder do Centro de Excelência em Tecnologias Sociais Co-fundador da Startup MeuTutor Soluções Educacionais LTDA. -- Onderzoeker +31(0)6 14576494 christophe.gueret@dans.knaw.nl Data Archiving and Networked Services (DANS) DANS bevordert duurzame toegang tot digitale onderzoeksgegevens. Kijk op www.dans.knaw.nl voor meer informatie. DANS is een instituut van KNAW en NWO. Let op, per 1 januari hebben we een nieuw adres: DANS | Anna van Saksenlaan 51 | 2593 HW Den Haag | Postbus 93067 | 2509 AB Den Haag | +31 70 349 44 50 | info@dans.knaw.nl | www.dans.knaw.nl Let's build a World Wide Semantic Web! http://worldwidesemanticweb.org/ e-Humanities Group (KNAW) -- Onderzoeker +31(0)6 14576494 christophe.gueret@dans.knaw.nl Data Archiving and Networked Services (DANS) DANS bevordert duurzame toegang tot digitale onderzoeksgegevens. Kijk op www.dans.knaw.nl voor meer informatie. DANS is een instituut van KNAW en NWO. Let op, per 1 januari hebben we een nieuw adres: DANS | Anna van Saksenlaan 51 | 2593 HW Den Haag | Postbus 93067 | 2509 AB Den Haag | +31 70 349 44 50 | info@dans.knaw.nl | www.dans.knaw.nl Let's build a World Wide Semantic Web! http://worldwidesemanticweb.org/ e-Humanities Group (KNAW) -- Onderzoeker +31(0)6 14576494 christophe.gueret@dans.knaw.nl Data Archiving and Networked Services (DANS) DANS bevordert duurzame toegang tot digitale onderzoeksgegevens. Kijk op www.dans.knaw.nl voor meer informatie. DANS is een instituut van KNAW en NWO. Let op, per 1 januari hebben we een nieuw adres: DANS | Anna van Saksenlaan 51 | 2593 HW Den Haag | Postbus 93067 | 2509 AB Den Haag | +31 70 349 44 50 | info@dans.knaw.nl | www.dans.knaw.nl Let's build a World Wide Semantic Web! http://worldwidesemanticweb.org/ e-Humanities Group (KNAW)
Received on Tuesday, 25 March 2014 14:58:24 UTC