Hi Tony, Great stuff! So I start exploring, looking for more fodder for sameAs.org … :-)
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, I’m 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 doesn’t 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, etc…, which is what I was expecting. It seems to me that this is more of a “links” file than a “mappings” file. Even more frustrating, many URIs that I tried, such as http://dx.doi.org/10.1038/ng1285, don’t resolve (give an invalid doi: message), so I wouldn’t be able to use them in any case. So… :-) 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 <[email protected]> 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 > > ******************************************************************************** > > DISCLAIMER: This e-mail is confidential and should not be used by anyone who > is not the original intended recipient. If you have received this e-mail in > error please inform the sender and delete it from your mailbox or any other > storage mechanism. 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