[topicmapmail] Web Services

[Thomas Schwotzer]

Lars Marius Garshol wrote:

> * Thomas B. Passin
> | 
> | 1 - How should you ask for some relevant part of a topic map (so as
> | to avoid getting the whole thing when it is not needed)?
> 
> Two mechanisms have been discussed so far: give an identifier for the
> topic you want, or run a query.

On of my students combined a Topic Map Engine (OKS)
with a geographic information system (GIS).

GIS has a concept of points of interests (POIs).
Loosely speaking, a POI is a place which is of some
interest for somebody. (Sound as weak as the definition
of the subject in TM ;-) )

Of course, POIs can be interpreted as topics.
That's what he did in his diploma thesis. Thus, other
topics can be associated with POIs. The semantic of this
association is "this topic is relevant at this point / in
the surrounding of this point"

Coordinates of a POI can now be issued to the
system. Result is a set of topics.
In other words, it is a location based service based on
topic maps.

His diploma thesis can be found here:
http://ivs.tu-berlin.de/~thsc/lbsxtm/index.html

Sorry, it is written in German. But there are some
pictures and javadocs.

I will demonstrate the system at CeBIT 2004.

Cheers, Thomas

-- 
Thomas Schwotzer
University of Technology Berlin
Intelligent Networks and Management of Distributed Systems
http://ivs.tu-berlin.de/Schwotzer
fon: +49-30-314-79833 fax: +49-30-314-24573