- From: Bjoern Hoehrmann <derhoermi@gmx.net>
- Date: Sun, 20 Jun 2010 04:27:53 +0200
- To: Karl Dubost <karl+w3c@la-grange.net>
- Cc: www-archive@w3.org
* Karl Dubost wrote: >Le 18 juin 2010 à 16:58, Bjoern Hoehrmann a écrit : >> Many Wikipedia articles have associated geographical coordinates. That >> is however usually limited to stationary objects, even though many more >> things have a very strong connection to a particular region, a regional >> tradition for instance. In order to associate some location with more of >> the articles, some method to derive them is needed. > >In your work you are trying to get real geolocation of articles (if I >understood correctly). I was wondering now about two possible interesting >things: I am mainly interested in placing articles into regions where Wikipedia does not do that already, for instance, I would want to put the article on the danish language somewhere in denmark. >* Plotting a dot for each geo-localized article on a world map. > That would give a kind of coverage of where are the things we talk > about on Wikipedia. This could also create cartogram map where the > density of article shapes the map rendering. I've done that already, these two maps show the article density around the north german city of Schleswig, using Google Maps and a generic OpenLayers layer respectively, * http://www.websitedev.de/temp/dewp-artikeldichte-um-schleswig.html * http://www.websitedev.de/temp/openlayers-heatmap-layer.html Doing this for all articles would push the file size to around 5MB and browsers aren't really up to the task of drawing 200 000 rectangles, and I haven't found a proper public domain OpenLayers compatible map service so I could at least make a static image of it. >* Distance between articles. > What are articles situated at 10km around from this article X? The > knowledge is then expressed in terms of distances. Well that's the same thing really, except with added markers. I could not find a proper Layer that would generate a usable result with the maps above, so I am not doing that at the moment. A while ago I made an interactive application that lets you browse the category system of the german Wikipedia showing how many articles are in a category (transitively) and how many page views they get in a tree map (you can size and color the categories using various data); it's in german and available at * http://katograph.appspot.com/ Note that Adobe Flash in some recent version is required. And as I am collecting links, * http://search.cpan.org/dist/Geo-MedianCenter-XS/ has the code I used to make the median and distance calculations. -- Björn Höhrmann · mailto:bjoern@hoehrmann.de · http://bjoern.hoehrmann.de Am Badedeich 7 · Telefon: +49(0)160/4415681 · http://www.bjoernsworld.de 25899 Dagebüll · PGP Pub. KeyID: 0xA4357E78 · http://www.websitedev.de/
Received on Sunday, 20 June 2010 02:28:31 UTC