Re: ANN: datos.bne.es, the new Linked Data service from the National Library of Spain

On 03/12/2014 11:19, Daniel Vila Suero wrote:
> Dear Richard,
>
> Thank you very much for the very quick feedback :-)
>
> El 03/12/14 11:56, Richard Light escribió:
>> Hi,
>>
>> When I try to dereference a work:
>>
>> http://datos.bne.es/edicion/Mimo0000379726
>>
>> it does the correct 303 redirects based on content type, but I get an 
>> empty result for both Turtle and RDF/XML.
>>
>> For authors:
>>
>> http://datos.bne.es/autor/XX1000054
>>
>> there is some data, but it contains no links to the author's works, 
>> so it isn't very "Linked Data". 
>
> There is problably some mismatch between the data feeding the content 
> negotiation and the data feeding the portal due to the recent updates 
> we made, we will look more in detail into this. It is not an issue of 
> not being linked data, if we have links presents will give them back 
> to you in both views HTML and RDF flavours as in: 
> http://datos.bne.es/autor/XX1020842.ttl and 
> http://datos.bne.es/autor/XX1020842.html
Ah, so you can do it for Shakespeare, but not for me. :-) My HTML (see 
above) has a link to the work Museum Documentation Systems, but the 
Turtle doesn't.

>> Also, there seems to be some confusion in the URL pattern: the 
>> subject URL within the RDF is http://datos.bne.es/resource/XX1000054, 
>> i.e. "resource" replaces "autor".
> We have kept the canonical URIs for things that we published in 
> previous versions: http://datos.bne.es/resource/ which correspond to 
> non-information resources and use the 303 mechanism to provide 
> different representations, in this case changing to a typed URI 
> pattern + the file extension, this was motivated to support nicer URIs 
> for the human-oriented content of the portal and its similar to 
> patterns like the one used in DBpedia where they do /resource/ --> 
> /page/ or /resource/ --> /data/ + the file extension for RDF 
> representations.
Having recently finished "Linked Data for Libraries, Archives and 
Museums" (van Hooland and Verborgh), I am newly enthused about the 
application of a proper REST approach.  To conform to this, I think, the 
URLs quoted when a resource is dereferenced should be compatible with 
the URL itself.  Otherwise, won't machine agents attempting to use these 
URLs to navigate become confused?

Richard

>
> Thank you very much for your comments, they help us to improve the 
> service.
>
> Daniel
>>
>> Richard
>>
>> On 03/12/2014 10:11, Daniel Vila Suero wrote:
>>> The *National Library of Spain* (BNE) (www.bne.es 
>>> <http://www.bne.es>) and the *Ontology Engineering Group* 
>>> (www.oeg-upm.net <http://www.oeg-upm.net>) are glad to announce the 
>>> new *datos.bne.es <http://datos.bne.es> 
>>> (http://datos.bne.es)* Linked Data service (in Spanish).
>>>
>>> This new service represents a milestone of the Linked Data project 
>>> started by the end of 2011 and that already published*Linked Open 
>>> Data under a Public Domain license* (Creative Commons CC0). We have 
>>> been working to improve many aspects of the service and would like 
>>> to share with you some *key features*:
>>>
>>> *A new way to search, discover and explore*
>>> *-------------------------------------------------------------*
>>>
>>> The new (beta) portal exploits linked data *to create better 
>>> experiences for the user*. A graph with millions of new connections 
>>> allows the user to explore the collections comprehensively and 
>>> across three core entities: authors, works and topics. The search 
>>> engine (e.g., http://datos.bne.es/find?s=joyce 
>>> <http://datos.bne.es/find?s=joyce>) also uses this graph to retrieve 
>>> and rank entities, presenting relevant information to the user and 
>>> allowing for simple, easy-to-use faceting.
>>>
>>> Besides, we continue to offer a public SPARQL endpoint 
>>> (http://datos.bne.es/sparql) for people to query and use the data 
>>> for their own applications, content negotiation, and we also provide 
>>> schema.org <http://schema.org> descriptions of authors and works 
>>> using JSON-LD.
>>>
>>> *More data, more links*
>>> *-------------------------------*
>>>
>>> We have published the full catalogue comprising *more than 9 million 
>>> records and around 150.000 digitalized materials* that generate more 
>>> than 140 million RDF triples. These linked data resources describe 
>>> and give access to authors, organizations, topics, modern and 
>>> ancient books, photographs, cartographic materials, drawings, 
>>> manuscripts, or printed and manuscript music.
>>>
>>> We provide around *1.4 million sameAs links* and add links to new 
>>> datasets such as ISNI, data.bnf.fr <http://data.bnf.fr>, id.loc.gov 
>>> <http://id.loc.gov>, and geo.linkeddata.es 
>>> <http://geo.linkeddata.es>. More importantly, we have significantly 
>>> increased the internal links between authors, bibliographic 
>>> resources and digital materials.
>>>
>>> *The BNE data model*
>>> *-----------------------------*
>>>
>>> The BNE vocabulary, inspired by the FRBR data model, reuses and 
>>> integrates several vocabularies such as IFLA FRBR, ISBD, or RDA, 
>>> among others. The vocabulary is available for both humans and 
>>> machines at http://datos.bne.es/def/, it is documented in English 
>>> and Spanish. We will soon provide alignments to the aforementioned 
>>> vocabularies.
>>>
>>> *Help us to improve*
>>> *---------------------------*
>>>
>>> We would very much appreciate receiving feedback from the community. 
>>> If you have any ideas/comments on how to improve the service, you 
>>> encounter issues/problems, you want to collaborate, etc. please get 
>>> in touch. But first of all, we invite you to visit:
>>>
>>> http://datos.bne.es
>>>
>>> Thanks and our best wishes.
>>>
>>> Daniel Vila Suero, Asunción Gómez Pérez, Ricardo Santos and Ana 
>>> Manchado, on behalf of the OEG and BNE teams.
>>
>> -- 
>> *Richard Light*
>

-- 
*Richard Light*