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These logs are provided as an experiment in indexing discussions using IRCHub.py, Irc2RDF.hs, and SIOC.
| 05:03:15 | <kasei> | what's the simplest way to generate all OWL-Lite entailed statements of an graph? |
| 05:03:45 | <kasei> | I thought pellet would be able to do it, but I'm not seeing it. |
| 05:07:02 | <kasei> | and I seem to be doing something wrong trying to serialize a jena InfModel. |
| 08:25:17 | <kwijibo> | is it possible to configure firefox to render documents served as text/turtle as plain/text ? |
| 10:17:22 | <UtopiahGHML> | any good documentation on exploiting semantic data? |
| 10:17:55 | <UtopiahGHML> | (not just building schemas/ rdf, graphs but using them and providing a result that worths the effrots |
| 10:18:07 | <UtopiahGHML> | Id sth very well done to share with potential "clients" |
| 10:33:13 | <BenO> | Has someone published an onto for describing money? e.g. amount and denomination are all I currently need, and it would be a shame to reinvent the wheel in this case |
| 10:39:58 | <kjetilkWork> | UtopiahGHML: SPARQL would be a good starting point, see e.g. |
| 10:40:00 | <kjetilkWork> | http://thefigtrees.net/lee/sw/sparql-faq |
| 10:40:18 | <kjetilkWork> | A:|The SPARQL FAQ |
| 10:43:42 | <kjetilkWork> | Also, building views with Fresnel is interesting, though I haven't used it myself yet: http://simile.mit.edu/wiki/Fresnel |
| 13:17:04 | <danja> | can anyone else see http://www/umbel.org/lod_constellation.html ok? I'm getting dns fail |
| 13:17:31 | <ldodds> | danja: 404s for me |
| 13:18:02 | <ghard> | Works for me (once I fixed the typo in that URL) |
| 13:18:16 | <ghard> | http://www.umbel.org/lod_constellation.html |
| 13:18:24 | <ghard> | Arrrg |
| 13:18:59 | <danja> | thanks ghard, missed that |
| 13:19:21 | <danja> | B:| The Linking Open Data (LOD) Constellation |
| 13:20:25 | <danja> | B: visualized through class-level linkage - from the Umbel folks |
| 13:21:25 | <ldodds> | everyone wants to be the centre :) |
| 13:29:22 | <fgiasson> | ldodds: which are you seeing as "the one in the center" in this diagram? |
| 13:30:53 | <ldodds> | in that diagram umbel |
| 13:31:08 | <fgiasson> | won't it be in the bottom of the graph? |
| 13:31:34 | <ldodds> | "bottom"? its the one that seems to have the most and strongest links going to it |
| 13:31:38 | <BenO> | DanC, Just wondering if http://www.w3.org/TR/rdfcal/ is something that is moving forward/you'd recommend using? Or is there a successor? |
| 13:32:59 | <fgiasson> | ldodds: well, how would you define "center of the graph" then? the node that has the best connectivity in the graph, or the one that is visually in the middle of the graph? |
| 13:33:40 | <ldodds> | connectivity |
| 13:33:56 | <ldodds> | ACTION notes that he wasn't criticising the diagram, twas just a wry comment |
| 13:35:45 | <fgiasson> | ldodds: no I know; but great care has been taken not to show umbel has the central (visually) in the graph. But it is right that it is a wel connected node since it is its purpose: to be a structural hub to help inferencing/linkage between multiple ontologies. Check the couple of "exploding the domain" blog posts by Mike and me about this sucject |
| 13:35:47 | <fgiasson> | subject |
| 13:44:37 | <danja_> | ACTION hopeful umbel does achieve aims, but the class/individual mix would seem to limit inference for DLers... |
| 13:44:59 | <fgiasson> | danja_: this is another story :) |
| 13:45:06 | <danja_> | indeed :-) |
| 13:46:11 | <danja_> | whatever, nice to see different view(s) of the cloud |
| 13:47:37 | <fgiasson> | danja_: well, the ultimate cloud is one that link LOD datasets to the ontologies that describe the classes used to instantiate individuals that belongs to them; but it would becomes quite complexe, quickly ;) |
| 13:47:58 | <fgiasson> | danja_: at the end, all this cloud stuff is for education only |
| 13:48:03 | <fgiasson> | (at least on my end) |
| 13:48:55 | <fgiasson> | easy and simple things that people can "easily" understand and that will lead them to more specific data sources (datasets, ontologies, papers, books, websites, etc) |
| 13:49:35 | <fgiasson> | to shows a part of the current "ontological landscape" of the semantic web |
| 14:41:31 | <uws> | dajobe: around? |
| 14:42:07 | <dajobe> | barely |
| 14:43:18 | <uws> | dajobe: I'm playing around with librdf/python for the first time. Any clue why the example on top of http://clockwerx.blogspot.com/2005/09/snake-in-redland.html gives "RedlandError: 'Cannot split predicate URI http://xmlns.com/foaf/0.1/ into an XML qname - skipping statement'" when serialized (e.g. "print model")? |
| 14:43:40 | <dajobe> | well the message says why |
| 14:43:57 | <dajobe> | you used a triple with a predicate URI that can't be writen as RDF/XML |
| 14:44:00 | <dajobe> | so don't do that |
| 14:44:07 | <dajobe> | foaf has no such predicate, so it's illegal anyway |
| 14:44:31 | <dajobe> | gotta run. or ask on #redland |
| 14:45:31 | <uws> | dajobe: ah, check. the example is just broken |
| 14:45:35 | <uws> | dajobe: thanks for the pointers. |
| 14:47:41 | <kidehen> | fgiasson: no harm in putting umbel at the center of the diagram. It is the hub of this diagram just as DBpedia is the hub of the dbpedia-lod diagram |
| 14:47:56 | <kidehen> | fgiasson: no harm is simplifying all routes to clarity |
| 14:48:29 | <kidehen> | fgiasson: dbpedia is a hub for one kind of LOD space and UMBEL another. I'll deal with bring the spaces together :-) |
| 14:48:52 | <kidehen> | fgiasson: s/bring/bringing |
| 16:39:55 | <terraces> | hi - can someone tell me why importing RDFS in an ontology make it OWL-Full (using Pellet) ? eg http://apassant.net/tmp/ns2.xml |
| 16:43:43 | <bengee> | maybe because it defines properties which owl dl expects to be owl:ObjectProperties as rdf:Properties |
| 16:44:13 | <bengee> | subClassOf/range/domain |
| 16:45:05 | <terraces> | but the strange thing actually is that RDFS itself is OWL-Lite when I pass it through pellet |
| 16:45:28 | <bengee> | heh, really? |
| 16:46:22 | <terraces> | yep, that's what intrigues me |
| 16:48:05 | <drobilla> | there are no restrictions in rdfs |
| 16:48:58 | <drobilla> | though you could write a bunch of of data using rdfs that turns out to be owl-lite |
| 16:49:29 | <terraces> | yes, but I can't see what's wrong with my import |
| 16:51:10 | <drobilla> | I'm not familiar with pellet, sorry |
| 16:51:34 | <drobilla> | but it's not surprising that rdfs 'itself' is owl-lite but things described with it aren't necessarily |
| 22:57:56 | <aniasis> | can anyone explain what the semantic web is and what semantic search is? |
| 23:17:39 | <Shepard> | in how many sentences? ;) |
| 23:17:55 | <Shepard> | I guess wikipedia would be a good start |
| 23:48:41 | <danja__> | aniasis, the Semantic Web is generally taken to be the extension of the web from being a web of documents to a web of data - material that computers can digest |
| 23:50:06 | <danja__> | semantic search isn't very well defined - it usually means things like using natural language parsing tools to offer clearer results from the search engine |
| 23:50:17 | <danja__> | .g Semantic Web |
| 23:50:18 | <phenny> | danja__: http://en.wikipedia.org/wiki/Semantic_Web |
| 23:50:31 | <danja__> | .g Semantic Search |
| 23:50:31 | <phenny> | danja__: http://en.wikipedia.org/wiki/Semantic_search |
| 23:50:46 | <danja__> | ok Shepard, you win :-) |
| 23:53:13 | <Shepard> | ACTION is having fun with http://www.mr-lee-catcam.de/ |
| 23:53:54 | <Shepard> | (via http://csensedesign.co.uk/blog/?p=183 ) |
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