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Re: [ANN] nature.com/ontologies - July 2015 Release

From: Hammond, Tony <Tony.Hammond@Macmillan.com>
Date: Sat, 8 Aug 2015 09:19:58 +0000
To: Hugh Glaser <hugh@glasers.org>
CC: "public-lod@w3.org" <public-lod@w3.org>
Message-ID: <D1EB8793.33A1E%tony.hammond@macmillan.com>
Hi Hugh:

Many thanks for the comments. This is exactly the kind of thing we need to
hear.

So, I think you may have raised four separate points which I'll try to
answer in turn:

==
1. Examples

You are right. We've been sloppy. These were intended more for reading
than parsing. So we took liberties with omitting common namespaces,
abbreviating strings, etc. Punctuation, we were just careless.

But I agree there is real value in making these examples complete. We will
address this in our next release.

2. Dereference

We really have no defence here. **We do not support dereference at this
time.** The datasets are outputs from our production systems and HTTP URIs
are used for namespacing only. We need to figure out a strategy for
supporting dereference.

So, if that means we are Bad Guys for violating Principle 2, then so be
it. We are not trying to claim that this is true Linked Data - it's only
common-or-garden linked data (of the RDF kind).

That's not to say that we are not interested in adding in dereference.
Only that these things take time to implement and we are proceeding with
our data publishing in an incremental manner.

So, for now, sorry!

3. URNs, etc

Note that the RDF you obtained from dereferencing the DOI is from CrossRef
- not from ourselves. So we cannot properly answer for something retrieved
from a third party. That said, CrossRef are also in the early stages of
data publishing, and may not themselves have reached the Linked Data
standard. Again, seems like it's only RDF at this time.

4. Mappings

Am a little perplexed as to the distinction between mappings and links,
although maybe I can see where you're coming from. Note that we're anyway
planning to decouple our ontology mappings and put those in separate files
and list then under Mappings. Our core and domain ontologies generally
have SKOS mappings, i.e. we use skos:closeMatch, skos:broadMatch,
skos:exactMatch, skos:relatedMatch, etc. This feels appropriate for the
ontology and the taxonomies.

I guess we are cautiously feeling our way forward and want to be a little
careful about using owl:sameAs.

==

So, I hope we've clarified some things here. There's a couple obvious
things we can do/are doing (examples, mappings). Some other things are out
of our hands (DOI dereference). And some will need more time for us to
implement (dereference generally).

Anyway, many thanks again for all your comments. It's really good to hear
back from real users. Otherwise it can feel like we are whistling in the
wind.

Tony





On 07/08/2015 12:48, "Hugh Glaser" <hugh@glasers.org> wrote:

>Hi Tony,
>Great stuff!
>So I start exploring, looking for more fodder for sameAs.org Š :-)
>
>It may be that my questions are too specific for the list - feel free to
>go off-list in response, and then we can summarise.
>And there is rather a lot here, Išm afraid.
>
>Some possible problemettes I hit:
>http://www.nature.com/ontologies/datasets/articles/#data_example
>might be confusing for people (and awkward when I tried to rapper it).
>Since quite a few prefixes are not declared, most notably one of yours:
>npg, but also the usual suspects (xsd, dc, bibo, foaf and also prism).
>There is also a missing foaf:homepage that causes a syntax error.
>And some semi-colons missing off the last few lines.
>
>A slightly more challenging problem is that the URI for that example
>doesnšt resolve.
>It unqualifies to http://ns.nature.com/articles/nrg3870 (I assume it is a
>namespace problem.)
>
>But I managed to find a resolving URI: http://dx.doi.org/10.1038/246015a0
>(from http://www.nature.com/ontologies/mappings/articles-dbpedia/)
>And successfully got some RDF :-)
>Looking at the owl:sameAs triples in there, I then start to worry - they
>are urn:, doi: and info: URIs.
>This is fine for a Semantic Web publishing, but means (in my opinion)
>that it is not Linked Data (violating principle 2) - all URIs for Things
>have to be http: for that. So you could use another predicate, but
>owl:sameAs seems wrong.
>
>Having found http://www.nature.com/ontologies/mappings/, I excitedly went
>off to http://www.nature.com/ontologies/mappings/articles-dbpedia/ and
>downloaded the files.
>However, I found that the file contains only triples with foaf:topic and
>cito:isCitedBy - no mappings between your URIs and DBpedia, Mesh, etcŠ,
>which is what I was expecting. It seems to me that this is more of a
>łlinks˛ file than a łmappings˛ file.
>Even more frustrating, many URIs that I tried, such as
>http://dx.doi.org/10.1038/ng1285, donšt resolve (give an invalid doi:
>message), so I wouldnšt be able to use them in any case.
>
>SoŠ :-)
>Apart from any fixing you may want to do; and maybe having some example
>Linked Data URIs for People and Publications sprinkled around (it really
>was quite a challenge to find any RDF!).
>I suspect that you do have some mappings between your URIs and dbpedia
>URIs, for example.
>Is there any chance you would like to send me (or link to a file) any
>Linked Data owl:sameAs triples that I could add to sameAs.org, please?
>And also, do you have an interesting owl:differentFrom dataset that I
>could add to differentFrom.org? This might be your regression test, where
>you have done mappings that you later found were wrong.
>
>Sorry if I have made some basic errors in failing to find things.
>Very best
>Hugh
>> On 28 Jul 2015, at 12:41, Hammond, Tony <Tony.Hammond@Macmillan.com>
>>wrote:
>> 
>> Hi:
>> 
>> As promised in a couple posts to the list earlier this year [1,2] we
>>have now resumed dataset publishing (following on from the 2012 releases
>>on data.nature.com [3,4]) and have added a new snapshot of bibliography
>>metadata for nature.com articles to the Nature.com Ontologies portal:
>> 
>>     http://nature.com/ontologies/
>>  
>> Specifically, as announced yesterday [5], we have released 170 years of
>>bib data for all nature.com articles and contributors over the period
>>1845-2015. We expect to release new snapshots periodically.
>> 
>> The release notes are copied below.
>> 
>> Tony
>> 
>> 
>> ==
>> Release:
>> 
>> * We've resumed publishing of datasets. We're now making available
>>complete instance datasets for articles (1.2 m) and contributors (2.7
>>m). These datsets are linked to the DOI and ORCID datasets. (These
>>datasets replace the historic datasets from 2012.)
>> 
>> * We've now added our core and domain models to GitHub projects and
>>brought them under version control: public-npg-core-ontology  GitHub and
>>public-npg-domain-ontology GitHub
>> 
>> * We've improved our documentation. A whole new Technical Notes section
>>has been added. Some material from the homepage (e.g. Background,
>>Licenses, Namespaces) has been moved there, and new material has been
>>added (e.g. Annotations, Mappings, Naming Policy, Versions).
>> 
>> * We've improved our data mappings. The Subjects Ontology is now 100%
>>mapped to DBpedia. See Mappings.
>> 
>> * We've added a reference in our Links section to our new colleagues at
>>Springer and their LOD for Conferences in Computer Science.
>> ==
>>   
>> 
>> [1] https://lists.w3.org/Archives/Public/public-lod/2015Apr/0005.html
>> [2] https://lists.w3.org/Archives/Public/public-lod/2015May/0002.html
>> [3] https://lists.w3.org/Archives/Public/public-lod/2012Apr/0061.html
>> [4] https://lists.w3.org/Archives/Public/public-lod/2012Jul/0130.html
>> [5] https://twitter.com/tonyhammond/status/625641560676409345
>> 
>> 
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>
>-- 
>Hugh Glaser
>   20 Portchester Rise
>   Eastleigh
>   SO50 4QS
>Mobile: +44 75 9533 4155, Home: +44 23 8061 5652
>
>

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Received on Saturday, 8 August 2015 09:20:32 UTC

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