- From: Kingsley Idehen <kidehen@openlinksw.com>
- Date: Fri, 01 Oct 2010 10:02:24 -0400
- To: Richard Cyganiak <richard@cyganiak.de>
- CC: Yves Raimond <yves.raimond@gmail.com>, public-lod@w3.org
On 10/1/10 9:24 AM, Richard Cyganiak wrote: > On 1 Oct 2010, at 14:06, Yves Raimond wrote: >> The list seems to miss all the SWI-Prolog endpoints for some reason, >> e.g. http://www.ckan.net/package/jamendo-dbtune > > That's because they were all 500 yesterday. > > From what I've seen, at any given time 10-20% of the LOD Cloud SPARQL > endpoints seem to be down ... Yes, we are planning a cloud driven by a database that stores no/off status data culled from probes. Thus, when released you will have data and a visual (Green, Amber, Red) that helps Linked Data agents discover which SPARQL endpoints are live at a given time. All of this is vital to workable SPARQL-FED and distributed SPARQL in general; since SPARQL is the dominant mechanism for Entity Name (Generic URI) to Descriptor Resource Address (e.g. URL) resolution across the burgeoning Web of Linked Data :-) Kingsley > > Best, > Richard > > >> >> Cheers, >> y >> >> On Fri, Oct 1, 2010 at 2:02 PM, Jens Lehmann >> <lehmann@informatik.uni-leipzig.de> wrote: >>> >>> Hello, >>> >>> On 01.10.2010 14:08, Richard Cyganiak wrote: >>>> >>>> The real news here is that we now have more than 100 live SPARQL >>>> endpoints in the Cloud. I'm not going to attempt any further >>>> interpretation of this data, but it should be useful for anyone who >>>> needs SPARQL endpoints for testing their client against. >>> >>> Very nice list. Good to see that there are a few endpoints around. >>> >>> This entry seems to be listed twice: >>> http://api.talis.com/stores/bbc-backstage/services/sparql >>> >>> A while ago I wrote a simple script for finding endpoints, which had >>> the >>> output listed below. It may or may not be useful for you. There is no >>> guarantee that those endpoints are still working (and of course >>> there is an >>> overlap with your list). Last time I checked, some of those >>> endpoints didn't >>> really support SPARQL (failed on simple SELECT/CONSTRUCT/ASK queries). >>> >>> Kind regards, >>> >>> Jens >>> >>> >>> http://lod.openlinksw.com/sparql/ >>> http://www.semantic-systems-biology.org/biogateway/endpoint >>> http://jena.hpl.hp.com:3040/backstage >>> http://dbtune.org/bbc/peel/sparql >>> http://dbtune.org/bbc/playcount/sparql >>> http://www4.wiwiss.fu-berlin.de/dailymed/sparql >>> http://semantic.data.gov/sparql >>> http://data.gov.uk/sparql >>> http://www4.wiwiss.fu-berlin.de/dblp/sparql >>> http://dbpedia.org/sparql >>> http://dbpedia-live.openlinksw.com/sparql/ >>> http://www4.wiwiss.fu-berlin.de/diseasome/sparql >>> http://doapspace.org/sparql >>> http://www4.wiwiss.fu-berlin.de/drugbank/sparql >>> http://www.factforge.net/sparql >>> http://openflydata.org/query/flyatlas_20080916 >>> http://openflydata.org/query/flyted_20081203 >>> http://spade.lbl.gov:2021/sparql, >>> http://spade.lbl.gov:2020/sparql >>> http://dbtune.org/henry/sparql/ >>> http://hcls.deri.org/sparql/ >>> http://abdera.watson.ibm.com:8080/sparql >>> http://dbtune.org/jamendo/sparql >>> http://data.linkedct.org/sparql >>> http://data.linkedmdb.org/sparql >>> http://lod.openlinksw.com/sparql/ >>> http://dbtune.org/magnatune/sparql >>> http://dbtune.org/musicbrainz/sparql >>> http://rdf.myexperiment.org/sparql >>> http://sparql.neurocommons.org/sparql >>> http://myopenlink.net:8890/sparql/ >>> http://demo.openlinksw.com/sparql/ >>> http://www4.wiwiss.fu-berlin.de/gutendata/sparql >>> http://www.rdfabout.com/sparql >>> http://revyu.com/sparql >>> http://*.rkbexplorer.com/sparql/ >>> http://data.semanticweb.org/sparql >>> http://sparql.semantic-web.at/sparql >>> http://www.sparql.org/sparql >>> http://www.wasab.dk/morten/2005/04/sparqlette/ >>> http://zbw.eu/beta/sparql >>> http://www4.wiwiss.fu-berlin.de/is-group/sparql >>> http://lsd.taxonconcept.org/sparql/ >>> http://uriburner.com/sparql/ >>> http://void.rkbexplorer.com/sparql/ >>> http://www.w3c.es/Prensa/sparql/ >>> http://dannyayers.com:8888/ontoworld/ >>> http://www4.wiwiss.fu-berlin.de/factbook/sparql >>> http://api.talis.com/stores/periodicals/services/sparql >>> http://km.aifb.uni-karlsruhe.de/services/sparql >>> http://my.opera.com/community/sparql/sparql >>> >>> -- >>> Dipl. Inf. Jens Lehmann >>> Department of Computer Science, University of Leipzig >>> Homepage: http://www.jens-lehmann.org >>> GPG Key: http://jens-lehmann.org/jens_lehmann.asc >>> >>> > > > -- Regards, Kingsley Idehen President& CEO OpenLink Software Web: http://www.openlinksw.com Weblog: http://www.openlinksw.com/blog/~kidehen Twitter/Identi.ca: kidehen
Received on Friday, 1 October 2010 14:03:27 UTC