[OTDev] Experiments with RDF
Egon Willighagen egon.willighagen at gmail.comFri Oct 1 07:46:32 CEST 2010
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Hi all, On Fri, Oct 1, 2010 at 7:32 AM, Nina Jeliazkova <jeliazkova.nina at gmail.com> wrote: > Would it be possible to run further experiments - in particular: > > - Split the reported time into time, necessary to download the RDF > representation from the server, and time, necessary to parse and load the > RDF as Jena object. I would also request, that when reporting performance results, please report the tools that are used (name and version), as not every tool is equally slow/fast. > - Report time to parse RDF into different in-memory Jena models (ones from > http://jena.sourceforge.net/javadoc/com/hp/hpl/jena/ontology/OntModelSpec.html(not > sure which is being used in the tests now) Indeed. Jena has normal triple models, as well as ontology models... turning of OWL reasoning/logic when not really needed may speed up things indeed. > - Report timings, using slightly different approach to convert to weka > instances, namely , retrieve URIs of compounds first and then retrieve > features for each compound in subsequent calls. > > - Report timings, when using Jena persistent storages , instead of in-memory > one (http://openjena.org/TDB/, http://openjena.org/SDB/ ) And in case of SDB, if you use MySQL, PostgreSQL, HSQLDB, etc. Egon -- Dr E.L. Willighagen Post-doc @ Uppsala University (only until 2010-09-30) Proteochemometrics / Bioclipse Group of Prof. Jarl Wikberg Homepage: http://egonw.github.com/ LinkedIn: http://se.linkedin.com/in/egonw Blog: http://chem-bla-ics.blogspot.com/ PubList: http://www.citeulike.org/user/egonw/tag/papers
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