- From: Kingsley Idehen <kidehen@openlinksw.com>
- Date: Wed, 20 May 2009 13:49:43 -0400
- To: Steve Harris <steve.harris@garlik.com>
- CC: semantic-web at W3C <semantic-web@w3c.org>, semanticweb@yahoogroups.com, public-lod@w3.org
Steve Harris wrote: > > On 20 May 2009, at 16:38, Kingsley Idehen wrote: >> 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 > > Cool, how do I for eg. get the immediate data around > http://openean.kaufkauf.net/id/EanUpc_0001067792600 out? It's not > obvious how you request it. > > Do I just issue SPARQL to somewhere? The SPARQL link at the bottom > goes to a page about SPARQL. > I poked around for a bit and tried > http://lod.openlinksw.com/sparql?query=DESCRIBE+%3Chttp%3A%2F%2Fopenean.kaufkauf.net%2Fid%2FEanUpc_0001067792600%3E&output=n3 > > but it gives an error, so I'm not sure what I did wrong. Steve, Still hot staging a few things. Nothing wrong with your command, we just need to complete some data re-organization work on this particular instance. Check back in a day or so :-) Also, we are adding this Linked Commerce Data to the LOD cloud, so do expect a published dump for the static data from this emerging space. Re. new data about new business entities, check PingTheSemantic Web . Kingsley > > - Steve > >>> 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 >> >> >> >> > -- 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 17:50:21 UTC