On 6 August 2015 at 16:28, Davis, Daniel (NIH/NLM) [C] <daniel.da...@nih.gov > wrote:
> Hugh Williams wrote: > > How is this "process to convert MeSH XML to MeSH RDF" which uses lots of > memory performed, is this done in Virtuoso or by some external process ? > > It's really converting to triples - https://github.com/HHS/meshrdf > contains the conversion code, which is basically an XSLT process run by > saxon9he in java. There is no Java code in our converter. One reason we > use the current method is so that researchers and linked data software > professionals can independently do the conversion. > > Could this XSLT code run inside of Virtuoso? How would we do a partial > change every night rather than a full reload given that some IRIs that > function as both subjects and objects may be deleted each night? > Hi Daniel, You might like to have a look at our Sponger. It's a system for ingesting diverse data resources, converting them to RDF; it matches on URL or MIME-type to identify the originating domain for the resource, choosing an appropriate stored procedure (hook function) to prepare and process the data using XSLT, ingesting the resultant rdf/xml into a graph. There are various pragmas available to control the method of retrieval; related resources can be retrieved (to a given degrees of freedom) and a graph can be cleared before (re)sponging, amongst other things. Given that XSLT already exists for this MeSH XML, it should not be hard to rewrite a custom cartridge around it. Further documentation of interest: - http://virtuoso.openlinksw.com/dataspace/doc/dav/wiki/Main/VirtSponger - http://www.slideshare.net/rumito/virtuoso-sponger-rdfizer-middleware-for-creating-rdf-from-non-rdf-data-sources - http://virtuoso.openlinksw.com/dataspace/doc/dav/wiki/Main/VirtSpongerCartridgeProgrammersGuide HTH, ~Tim -- Tim Haynes Product Development Consultant OpenLink Software <http://www.openlinksw.com/> <http://twitter.com/openlink>
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