RE: {Disarmed} Re: Is it best practices to use a rdfs:seeAlso link to a potentially multimegabyte PDF?, existing predicate for linking to PDF?

Duh, apologies... I meant dcterms:hasFormat rather than dcterms:hasVersion.

"A related resource that is substantially the same as the pre-existing described resource, but in another format."

http://www.dublincore.org/documents/dcmi-terms/#terms-hasFormat

Andy

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From: public-lod-request@w3.org [mailto:public-lod-request@w3.org] On Behalf Of Andy Powell
Sent: 07 January 2011 14:30
To: Christopher Gutteridge; Hugh Glaser
Cc: Peter DeVries; <public-lod@w3.org>
Subject: RE: {Disarmed} Re: Is it best practices to use a rdfs:seeAlso link to a potentially multimegabyte PDF?, existing predicate for linking to PDF?

I suspect you might already be in FRBR hell with your use of dcterms:hasPart (at least in the case of linking to the PDF)... you just don't know it yet! :-)

In response to the original question about linking to the PDF file, I would have thought that dcterms:hasVersion would do the job?

Andy

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From: public-lod-request@w3.org [mailto:public-lod-request@w3.org] On Behalf Of Christopher Gutteridge
Sent: 06 January 2011 21:02
To: Hugh Glaser
Cc: Peter DeVries; <public-lod@w3.org>
Subject: {Disarmed} Re: Is it best practices to use a rdfs:seeAlso link to a potentially multimegabyte PDF?, existing predicate for linking to PDF?

But that's me making a reasonable guess and getting on with it.

The EPrints document is a URI which represents a conceptual document which consists of a number of actual files, eg. HTML+JPG+CSS, so the dct:hasPart makes sense there. The main issue is how to relate the document to the metadata record, and you rapidly decend into FRBR hell.

Until a few people have consumed my data I consider it very much a work in progress!

Hugh Glaser wrote:

I see that Chris Gutteridge uses dc:hasPart for the ePrints RDF (eprints.org).

Eg:



<http://eprints.ecs.soton.ac.uk/21681/><http://eprints.ecs.soton.ac.uk/21681/>

        dc:format "text/html";

        dc:title "HTML Summary of #21681 Consuming multiple linked data sources: Challenges and Experiences";

        foaf:primaryTopic <http://eprints.ecs.soton.ac.uk/id/eprint/21681><http://eprints.ecs.soton.ac.uk/id/eprint/21681> .

....

<http://eprints.ecs.soton.ac.uk/id/eprint/21681><http://eprints.ecs.soton.ac.uk/id/eprint/21681>

        ep:hasDocument <http://eprints.ecs.soton.ac.uk/id/document/36430><http://eprints.ecs.soton.ac.uk/id/document/36430>,

....

<http://eprints.ecs.soton.ac.uk/id/document/36430><http://eprints.ecs.soton.ac.uk/id/document/36430>

        dct:hasPart <http://eprints.ecs.soton.ac.uk/21681/1/cold2010%2Dpaper16%2Dcamera%2Dready.pdf><http://eprints.ecs.soton.ac.uk/21681/1/cold2010%2Dpaper16%2Dcamera%2Dready.pdf>;

....



Cheers

Hugh



On 6 Jan 2011, at 19:40, Peter DeVries wrote:





I was wondering if there is an existing predicate for linking to a PDF file?



I would like to incorporate a link between bibliographic reference description and a URL to the location of a PDF of that document.



I had minted a predicate txn:hasPDFVersion, as demonstrated in this RDF snippet. (Part of http://lod.taxonconcept.org/ses/v6n7p.rdf )



  <txn:SpeciesOriginalDescription rdf:about=MailScanner has detected a possible fraud attempt from "lod.taxonconcept.org" claiming to be "http://lod.taxonconcept.org/ses/v6n7p#OriginalDescription"<http://lod.taxonconcept.org/ses/v6n7p#OriginalDescription>>

    <!-- Ideally, this should link to a resource in the Biodiversity Heritage Library -->

    <dcterms:title>Original Published Description relating to Species Concept Puma concolor se:v6n7p</dcterms:title>

    <dcterms:identifier>http://lod.taxonconcept.org/ses/v6n7p#OriginalDescription</dcterms:identifier>

    <dcterms:description>LOD metadata about the original species description relating to Species Concept Puma concolor se:v6n7p</dcterms:description>

    <dcterms:isPartOf rdf:resource=MailScanner has detected a possible fraud attempt from "lod.taxonconcept.org" claiming to be "http://lod.taxonconcept.org/ses/v6n7p#Species"<http://lod.taxonconcept.org/ses/v6n7p#Species>/>

    <txn:hasAuthorURI rdf:resource=MailScanner has detected a possible fraud attempt from "dbpedia.org" claiming to be "http://dbpedia.org/resource/Carl_Linnaeus"<http://dbpedia.org/resource/Carl_Linnaeus>/>

    <txn:hasBasionymName>Felis concolor Linnaeus 1771</txn:hasBasionymName>

    <txn:year>1771</txn:year>

    <txn:hasPDFVersion rdf:resource=MailScanner has detected a possible fraud attempt from "assets.geospecies.org" claiming to be "http://assets.geospecies.org/spec_concept_uuid/603bebac-cc44-4168-bbf7-b11b976f9d79/Felis_concolor_Linnaeus_1771.pdf"<http://assets.geospecies.org/spec_concept_uuid/603bebac-cc44-4168-bbf7-b11b976f9d79/Felis_concolor_Linnaeus_1771.pdf>/>

    <txn:speciesOriginalDescriptionHasSpeciesConcept rdf:resource=MailScanner has detected a possible fraud attempt from "lod.taxonconcept.org" claiming to be "http://lod.taxonconcept.org/ses/v6n7p#Species"<http://lod.taxonconcept.org/ses/v6n7p#Species>/>

    <!-- There should be a type specimen. Add link to GBIF via 'txn:sodHasTypeSpecimen' if they know about it. -->

    <wdrs:describedBy rdf:resource=MailScanner has detected a possible fraud attempt from "lod.taxonconcept.org" claiming to be "http://lod.taxonconcept.org/ses/v6n7p.rdf"<http://lod.taxonconcept.org/ses/v6n7p.rdf>/>

  </txn:SpeciesOriginalDescription>



Some have suggested using rdfs:seeAlso to link to what could be a multimegabyte PDF, but I think this would cause problems for a number of RDF crawlers like Elmo.



In summary, I think it would be useful to have a predicate that can be used for linking specifically to a PDF document.



Is there an existing predicate for this?



What do people think about the suggestion to use rdfs:seeAlso to link to a PDF?



I would also like to know of others thoughts or suggestions regarding this issue,



Respectfully,



- Pete







---------------------------------------------------------------

Pete DeVries

Department of Entomology

University of Wisconsin - Madison

445 Russell Laboratories

1630 Linden Drive

Madison, WI 53706

TaxonConcept Knowledge Base / GeoSpecies Knowledge Base

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