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Esme, let me second Owen's enthusiasm for more detail if you can supply it. I think we also need to start putting these efforts along a "loss" continuum - MODS is already lossy vis-a-vis MARC, and my guess is that some of the other MARC->RDF transforms don't include all of the warts and wrinkles of MARC. LC's new bibliographic framework document sets as a goal to bring along ALL of MARC (a decision that I think isn't obvious, as we have already discussed here). If we say we are going from MARC to RDF, how much is actually captured in the transformed data set? (Yes, that's going to be hard to quantify.) kc Quoting Esme Cowles <[log in to unmask]>: > Owen- > > Another strategy for capturing MARC data in RDF is to convert it to > MODS (we do this using the LoC MARC to MODS stylesheet: > http://www.loc.gov/standards/marcxml/xslt/MARC21slim2MODS.xsl). > From there, it's pretty easy to incorporate into RDF. There are > some issues to be aware of, such as how to map the MODS XML names to > predicates and how to handle elements that can appear in multiple > places in the hierarchy. > > -Esme > -- > Esme Cowles <[log in to unmask]> > > "Necessity is the plea for every infringement of human freedom. It is the > argument of tyrants; it is the creed of slaves." -- William Pitt, 1783 > > On 11/28/2011, at 8:25 AM, Owen Stephens wrote: > >> It would be great to start collecting transforms together - just a >> quick brain dump of some I'm aware of >> >> MARC21 transformations >> Cambridge University Library - http://data.lib.cam.ac.uk - >> transformation made available (in code) from same site >> Open University - http://data.open.ac.uk - specific transform for >> materials related to teaching, code available at >> http://code.google.com/p/luceroproject/source/browse/trunk%20luceroproject/OULinkedData/src/uk/ac/open/kmi/lucero/rdfextractor/RDFExtractor.java (MARC transform is in libraryRDFExtraction >> method) >> COPAC - small set of records from the COPAC Union catalogue - data >> and transform not yet published >> Podes Projekt - LinkedAuthors - documentation at >> http://bibpode.no/linkedauthors/doc/Pode-LinkedAuthors-Documentation.pdf - >> 2 stage transformation firstly from MARC to FRBRized version of >> data, then from FRBRized data to RDF. These linked from documentation >> Podes Project - LinkedNonFiction - documentation at >> http://bibpode.no/linkednonfiction/doc/Pode-LinkedNonFiction-Documentation.pdf - MARC data transformed using xslt >> https://github.com/pode/LinkedNonFiction/blob/master/marcslim2n3.xsl >> >> British Library British National Bibliography - >> http://www.bl.uk/bibliographic/datafree.html - data model >> documented, but no code available >> Libris.se - some notes in various presentations/blogposts (e.g. >> http://dc2008.de/wp-content/uploads/2008/09/malmsten.pdf) but can't >> find explicit transformation >> Hungarian National library - >> http://thedatahub.org/dataset/hungarian-national-library-catalog >> and http://nektar.oszk.hu/wiki/Semantic_web#Implementation - some >> information on ontologies used but no code or explicit >> transformation (not 100% sure this is from MARC) >> Talis - implemented in several live catalogues including >> http://catalogue.library.manchester.ac.uk/ - no documentation or >> code afaik although some notes in >> >> MAB transformation >> HBZ - some of the transformation documented at >> https://wiki1.hbz-nrw.de/display/SEM/Converting+the+Open+Data+from+the+hbz+to+BIBO, don't think any code >> published? >> >> Would be really helpful if more projects published their >> transformations (or someone told me where to look!) >> >> Owen >> >> Owen Stephens >> Owen Stephens Consulting >> Web: http://www.ostephens.com >> Email: [log in to unmask] >> Telephone: 0121 288 6936 >> >> On 26 Nov 2011, at 15:58, Karen Coyle wrote: >> >>> A few of the code4lib talk proposals mention projects that have or >>> will transform MARC records into RDF. If any of you have >>> documentation and/or examples of this, I would be very interested >>> to see them, even if they are "under construction." >>> >>> Thanks, >>> kc >>> >>> -- >>> Karen Coyle >>> [log in to unmask] http://kcoyle.net >>> ph: 1-510-540-7596 >>> m: 1-510-435-8234 >>> skype: kcoylenet > -- Karen Coyle [log in to unmask] http://kcoyle.net ph: 1-510-540-7596 m: 1-510-435-8234 skype: kcoylenet