Re: How to model valid time of resource properties?

2014-10-14 Thread Carsten Keßler
Dear all, here’s another paper that discusses different approaches: http://carsten.io/trame-kessler-kuhn-cosit2013.pdf Best, Carsten --- Carsten Kessler – http://carsten.io Center for Advanced Research of Spatial Information Department of Geography Hunter College – CUNY 695 Park Avenue New Yo

Deadline extension: 3rd International Workshop on Linked Science 2013

2013-07-09 Thread Carsten Keßler
Submission Deadline Extended: July 12th, 2013 at 23:59 (UTC−10:00 Hawaii Time zone)! 3rd International Workshop on Linked Science 2013—Supporting Reproducibility, Scientific Investigations and Experiments (LISC2013) When: October 21st or 22nd, 2013 Where: Sydney Masonic Conference & Function

Re: Publication of scientific research (was: CfP: 3rd International Workshop on Linked Science 2013 (LISC2013))

2013-04-24 Thread Carsten Keßler
We had this discussion among the Linked Science workshop organizers several times. I'm with Paul, I think that a human-readable description is central to the dissemination of research results (and will probably remain for the foreseeable future). I'm not saying that PDF is the best way to do this,

Evolving vocabularies

2012-06-27 Thread Carsten Keßler
Dear LODers, I have already bugged this list with our Humanitarian eXchange Language project a couple times, and I'd like to hear your opinion on the following problem. We are constantly working on the vocabulary (see http://hxl.humanitarianresponse.info/ for the latest version), so it gets r

CFP: GIScience in the Big Data Age 2012 (GIBDA2012)

2012-05-24 Thread Carsten Keßler
California, Santa Barbara, USA • Carsten Keßler, University of Münster, Germany • Tomi Kauppinen, University of Münster, Germany • Dave Kolas, BBN Technologies, USA

CfP: Workshop on GIScience in the Big Data Age 2012

2012-03-30 Thread Carsten Keßler
ant Dates Submission due: 18. June 2012 Acceptance Notification: 6. July 2012 Camera-ready Copies: 16. July 2012 Organizers Krzysztof Janowicz, University of California, Santa Barbara, USA Carsten Keßler, University of Münster, Germany Tomi Kauppinen, University of Münster, Germany D

Re: Metadata about single triples

2012-02-23 Thread Carsten Keßler
Hi David, >  select ?s ?p ?o where { >  graph ?g1 { ?g >                     } >  graph ?g { ?s :p1 ?o . >           ?s :p2 ?o .} >  } So we'd have to do (assuming all graph metadata are stored in the same graph): select ?s ?p

Re: Metadata about single triples

2012-02-23 Thread Carsten Keßler
Hi David, > The big issue in my view is how to deal with all of the resulting named > graphs, since a typical query will need to use data from a number of > named graphs, but not all of them.  This means that you need the ability > to define and sets of named graphs and then query them.  The SPARQ

Re: Metadata about single triples

2012-02-23 Thread Carsten Keßler
Dear Kingsley, >> But this is what (most?) triple stores do with the default graph in the >> absence of FROM/NAMED clauses in queries anyway. (Certainly this is the >> Sesame approach, followed by OWLIM.) > > Not so re. Virtuoso. The Graph IRIs don't matter. Only used them if you > explicitly seek

Re: Metadata about single triples

2012-02-22 Thread Carsten Keßler
Hi Gannon, > I agree with the comments below.  I think what Bob is suggesting is that you > include a non-ontology Core (DCMI for example). I am not sure whether I get that correctly, but it is pretty clear to use that we need something like this. We are already using some of the DCMI properties

Re: Metadata about single triples

2012-02-22 Thread Carsten Keßler
Hi Bob, > At a first glance, your ontology looks very interesting and well designed. thanks, we are doing our best ;) > So there might be the (rather old) need for > statement identifiers, i.e., a URI (or maybe also a bnode) for identifying a >  single triple and to be able to describe external

Metadata about single triples

2012-02-22 Thread Carsten Keßler
of query performance), and whether you see an alternative approach? Thanks, Carsten --- Dr. Carsten Keßler http://carsten.io +49 (0) 251 83 39764 Linked Open Data University of Münster → http://lodum.de Münster Semantic Interoperability Lab → http://musil.uni-muenster.de Institute for Geoinformati

CfP: Linked Science workshop @ ISWC 2011, Oct 24th, 2011

2011-07-30 Thread Carsten Keßler
Open University, UK - Frank van Harmelen, Vrije Universiteit Amsterdam, The Netherlands - Carsten Keßler, University of Muenster, Germany - Kerstin Kleese-Van Dam, Pacific Northwest National Laboratory, USA - Eric G. Stephan, Pacific Northwest National Laboratory, USA - Jun Zhao, University of Oxfor