Alistair Miles
Wed, 14 Jan 2009 00:47:18 -0800
Another bug report :) ... I downloaded the file at http://lccn.loc.gov/85753651/dc but oXygen tells me
[SystemID: Severity: error Line:-1 Column:-1 EndLine:-1 EndColumn:-1 Length:-1 Offset:-1 Message:schema_reference.4: Failed to read schema document 'http://www.loc.gov/z3950/agency/zing/srw/dc-schema.xsd', because 1) could not find the document; 2) the document could not be read; 3) the root element of the document is not <xsd:schema>. Additional: http://www.w3.org/TR/xmlschema-1/#schema_reference] Looks like http://www.loc.gov/z3950/agency/zing/srw/dc-schema.xsd is not found. Cheers, Al On Mon, Dec 22, 2008 at 03:31:50PM -0500, Ed Summers wrote: > Hey Alistair: > > On Mon, Dec 22, 2008 at 1:16 PM, Alistair Miles > <alistair.mi...@zoo.ox.ac.uk> wrote: > > Any tips for how I could turn these data into RDF? > > If you want to work specifically with that dataset you could download > the different parts Karen pointed you to, and convert to MARCXML using > an efficient tool like yaz-marcdump [2]. yaz-marcdump is nice it will > convert from MARC-8 to UTF-8. > > Once you've got it in MARCXML you could then use a stylesheet like > LC's [2] to convert to DublinCore flavored RDF. This might be kinda > lossy for your RDA work though, so you might want MARCXML->MODS [3], > and then use the MODS->RDF conversion that the Simile folks created > (which Karen also pointed you to) [4]. > > In fact Simile used that stylesheet on their own MIT Library Catalog > MARC data (Barton) and still seem to have the result online [5]. So > perhaps just using the Barton data is the quickest way to begin > playing with what once was MARC data as RDF? To my knowledge Stefano > Mazzocchi simply created an RDF vocabulary that mirrors the MODS XML > Schema, but I haven't looked at it in a while. > > Another thing worth checking out might be Rob Styles work [6] with > other people at Talis at converting MARC with full fidelity to RDF. > Perhaps he has some tools (or data) at his disposal? Rob you are on > here right? > > I'd be willing to lend a hand with some of this if necessary, so just > let me know if you think I can help. > > //Ed > > [1] http://www.indexdata.com/yaz/doc/yaz-marcdump.tkl > [2] http://www.loc.gov/standards/marcxml/xslt/MARC21slim2RDFDC.xsl > [3] http://www.loc.gov/standards/mods/v3/MARC21slim2MODS3.xsl > [4] http://simile.mit.edu/wiki/MARC/MODS_RDFizer > [5] http://simile.mit.edu/wiki/Dataset:_Barton > [6] > http://events.linkeddata.org/ldow2008/papers/02-styles-ayers-semantic-marc.pdf -- Alistair Miles Senior Computing Officer Image Bioinformatics Research Group Department of Zoology The Tinbergen Building University of Oxford South Parks Road Oxford OX1 3PS United Kingdom Web: http://purl.org/net/aliman Email: alistair.mi...@zoo.ox.ac.uk Tel: +44 (0)1865 281993