- From: Kingsley Idehen <kidehen@openlinksw.com>
- Date: Wed, 20 May 2009 11:38:38 -0400
- To: Steve Harris <steve.harris@garlik.com>
- CC: martin.hepp@ebusiness-unibw.org, Libby Miller <libby@nicecupoftea.org>, semantic-web at W3C <semantic-web@w3c.org>, "semanticweb@yahoogroups.com" <semanticweb@yahoogroups.com>, "public-lod@w3.org" <public-lod@w3.org>
Steve Harris wrote: > Alternatively you could put that data in a RDF store, and just serve > up the fragments using a wrapped CONSTRUCT query. > > That's what we do for qdos.com, eg > > http://qdos.com/user/Steve-Harris/18b6f60b41e05aaa418565ebfe901d6b/rdfxml > and it's pretty efficient, more efficient that storing 1000 separate > files as XML. > > The downside is that the RDF is not very pretty to look at, but it > could be with a better RDF/XML serialiser. > > - Steve Steve, The data is already in an RDF Store. Of course, you can add yours etc. :-) Martin should have sent links like: 1. http://tr.im/lThV -- the whole ontology 2. http://tr.im/lTiC -- sampling of Products or Service Model instance data Kingsley > > On 20 May 2009, at 14:59, Martin Hepp (UniBW) wrote: > >> Hi Steve, >> as I replied to Libby (but did not include all mailing lists): The >> whole data set is served from currently 100 smaller files, which will >> be broken down to 1000 files shortly. For various reasons however, we >> don't want to serve one file per element, because that will create a >> huge overhead - the individual data sets are rather small (a few >> triples per item). Having one million micro-files is hard to manage. >> Also, since we want to stay within OWL DL, we would have to duplicate >> proper ontology header meta-data a million times. >> >> Thus, we use a (rather large) set of rules in the .htaccess file to >> serve that part of the data set that contains the element you are >> actually looking for. You will receive a few more triples than you >> need, but simply discard those ;-) >> >> Martin >> >> Steve Harris wrote: >>> Very cool resource. >>> >>> On 20 May 2009, at 10:18, Libby Miller wrote: >>>>> Individual commodity descriptions can be retrieved as follows: >>>>> >>>>> http://openean.kaufkauf.net/id/EanUpc_<UPC/EAN> >>>>> >>>>> Example: >>>>> >>>>> http://openean.kaufkauf.net/id/EanUpc_0001067792600 >>>> >>>> This seems to give me multiple product descriptions - am I >>>> misunderstanding? >>> >>> Yeah, looks like it returns the entire document that the particular >>> EAN appears in. >>> >>> Not very linked data friendly (you'll end up with a large proportion >>> of repeated triples in identical graphs, with different graph URIS), >>> but certainly better than nothing. >>> >>> - Steve >>> >> >> -- >> -------------------------------------------------------------- >> martin hepp >> e-business & web science research group >> universitaet der bundeswehr muenchen >> >> e-mail: mhepp@computer.org >> phone: +49-(0)89-6004-4217 >> fax: +49-(0)89-6004-4620 >> www: http://www.unibw.de/ebusiness/ (group) >> http://www.heppnetz.de/ (personal) >> skype: mfhepp >> >> Check out the GoodRelations vocabulary for E-Commerce on the Web of >> Data! >> ======================================================================== >> >> Webcast explaining the Web of Data for E-Commerce: >> ------------------------------------------------- >> http://www.heppnetz.de/projects/goodrelations/webcast/ >> >> Tool for registering your business: >> ---------------------------------- >> http://www.ebusiness-unibw.org/tools/goodrelations-annotator/ >> >> Overview article on Semantic Universe: >> ------------------------------------- >> http://www.semanticuniverse.com/articles-semantic-web-based-e-commerce-webmasters-get-ready.html >> >> >> Project page and resources for developers: >> ----------------------------------------- >> http://purl.org/goodrelations/ >> >> Upcoming events: >> --------------- >> Full-day tutorial at ESWC 2009: The Web of Data for E-Commerce in One >> Day: A Hands-on Introduction to the GoodRelations Ontology, RDFa, and >> Yahoo! SearchMonkey >> >> http://www.eswc2009.org/program-menu/tutorials/70 >> >> Talk at the Semantic Technology Conference 2009: Semantic Web-based >> E-Commerce: The GoodRelations Ontology >> >> http://www.semantic-conference.com/session/1881/ >> >> <martin_hepp.vcf> > -- Regards, Kingsley Idehen Weblog: http://www.openlinksw.com/blog/~kidehen President & CEO OpenLink Software Web: http://www.openlinksw.com
Received on Wednesday, 20 May 2009 15:39:55 UTC