Hi everybody Thomas Wood setup a dev snapshot of the OSM wiki and in the meantime we got a working prototype for an OSM wiki supported by Semantic MediaWiki up and running, see [1]. It would decrease the amount of redundant information about map features and it would provide standardized data exchange, see the sample RDF export [2].
I opened a discussion on Talk:Wiki [3] on whether and how this approach could be moved to wiki.openstreetmap.org. @Yoren, Denny: do you have experience with SMW under load? For a wiki which heavily uses templates, parser functions and inline queries? -- Karl [1] http://dev.openstreetmap.org/~edgemaster/semwiki/index.php/Main_Page [2] http://dev.openstreetmap.org/~edgemaster/semwiki/index.php/Main_Page#Sample_RDF_Exports [3] http://wiki.openstreetmap.org/wiki/Talk:Wiki#Managing_Map_Features_using_Semantic_MediaWiki -----Ursprüngliche Nachricht----- Von: Denny Vrandecic [mailto:d...@aifb.uni-karlsruhe.de] Gesendet: Freitag, 9. Januar 2009 18:29 An: karl.guggisb...@guggis.ch Cc: t...@openstreetmap.orgy; Yaron Koren Betreff: Re: AW: [OSM-talk] OSM-WIKI: reducing redundancy, less redundant and standardized data exchange Hi Karl, Hi Yoren, I am not sure if this continued. Yaron offers hosting of Semantic MediaWikis, and I wanted to connect you in case that makes sense and if you need help or a place to run a semantically enabled copy of OSM for testing purposes. Could make a lot of sense :) If you have more questions, feel free to ask us. If there's something I could do I could take a look at it (just my time is quite constrained, as I am currently in thesis-writing-mode) Cheers, denny Karl Guggisberg wrote: > Hi denny > > I had a second look at the documentation and I now understand how Semantic > MediaWiki can help us. > > Assume map features were described by three attributes: a key, a value and a > description, like > {MapFeature key="foo" value="bar" description="desc"} > > Then we would create a Wiki page [[Tag:foo=bar]] (as we do today): > > ----------- beginwiki of [[Tag:foo=bar]] bla bla bla > > <!-- the properties of Semantic MediaWiki --> [[key::foo]] > [[value::bar]] [[description::desc]] > ----------- endwiki > > On the [[Map Features]] page we could ask for this data (the following > example automatically creates a table, we have full control over > rendering using wiki templates, if we want to) > > ----------- #beginwiki of [[Map Features]] > {{#ask: [[Tag:foo=bar]] > | ?key = Key > | ?value = Value > | ?description = Description > }} > ----------- #endwiki > > > On yet another page we could include information about the map feature: > > ----------- #beginwiki of [[Yet another page]] The map feature > [[Tag:foo=bar]] is described as follows: > * Key: {{#show: Tag:foo=bar | ?key}} > * Value: {{#show: Tag:foo=bar | ?value}} > * Description: {{#show: Tag:foo=bar | ?description}} > ----------- #endwiki > > > I'd like to use SemanticWiki for the OSM wiki. This will bring us a step > further to managing map feature data. > > I'd like to have a kind of sandbox to work on this. Could somebody provide an > installation of MediaWiki including SemanticWiki and a copy of the current > OSM Wiki content on a test server? > > -- Karl > > > -----Urspr ngliche Nachricht----- > Von: Denny Vrandecic [mailto:d...@aifb.uni-karlsruhe.de] > Gesendet: Mittwoch, 24. Dezember 2008 10:07 > An: talk@openstreetmap.org; karl.guggisb...@guggis.ch > Betreff: [OSM-talk] OSM-WIKI: reducing redundancy, less redundant and > standardized data exchange > > (Karl, since the list is probably closed for outside postings, can you > please forward this answer to the list?) > > I stumbled on this thread via Google Alert, so excuse me for not being > much knowledgeable about the OpenStreetMaps wiki (I'm a big fan of > OSM, > though!) -- but I know a little bit about Semantic MediaWiki. > > So one of the major ideas is indeed to be able to declare a piece of > information on one page, and then reuse the data in other places, especially > summary sites. > > Example: on the "Statue of Liberty" page you would say "Tourist > attraction=major" and "located in=New York, NY" and on then, in other places, > you could create queries to summarize such data from the wiki, i.e. > > List of all major tourist attractions: > {{#ask:[[Torist attraction::Major]]}} > or > List of all tourist attractions in New York, NY: > {{#ask:[[Tourist attraction::+]] [[located in::New York, NY]]}} etc. > > If you want, keep me in the loop for this thread, and I will answer question. > I'd be very happy to see the OSM wiki use SMW, if it makes sense. > > Cheers, > denny > > > > > Original message: > Hi there, > > In [2] we see that there are partially redundante declarations of map > features (descriptions of keys or key/value-pairs for tagging OSM > primitives) in the wiki. The major reason for redundant is, that they appear > both on individual pages (like [[Key:heighway]] or [[Tag:highway=primary]]) > and on summary pages (like [[Map Features]]). So far we didn't come up with > an approach to *declare* a map feature only once on the Wiki (i.e. by > instantiating a suitable template) and to *use* this declaration both in > indvidual pages and in summary pages. > > I don't see yet how Semantic MediaWiki could help use here because the > limited templating approach seems to remain unchanged. An example on how > Semantic MediaWiki could help to declare, say, the data for the > key/value-pari highway=primary would be very appreciated. Perhaps on the talk > page of [2]? > > -- Karl > _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
