[DL] Which temporal DL to use?

Arthur van Bunningen bunninge at cs.utwente.nl
Thu Jul 22 16:23:40 CEST 2004

Dear all,

First I want to say hello to everyone on the list. I just started my PhD on 
context modeling and reasoning with respect to databases and for a formal 
(decidable) specification I find that Description Logics have some 
interesting features which I want to look into (which is the reason for 
joining this list).

When reasoning about (history of) the context of a user, time plays a very 
important part. For a start the idea is that events have an interval in which 
they occur and based on temporal relations information should be be inferred. 
The problem is the large number of methods which exist in DL to reason about 
time (see [1] and I quickly looked at the latest paper of Lutz)

Some examples of what I want to model are:
"Events which happened yesterday after my meeting with Peter but before 
lunch." or
"All co-occurrences of events the last year in which I looked at a painting 
and moved my left foot." or (but in this one I maybe ask to much)
"All cinemas I can reach before 20:00, considering the current time and 
traveling speed"

The question is not how to model these examples (although suggestions are 
welcome of course :) ) but if there exists a decidable temporal extension of 
DL in which they can be modeled. And, if there exist multiple, which is the 
most promising one to concentrate on to make findings in this area the most 
usable for others?

Thank you in advance for your help.



[1]  Artale, Alessandro and Franconi, Enrico A survey of temporal extensions 
of description logics, Annals of Mathematics and Artificial Intelligence, 
30:171-210, 2000

Ir. A.H. van Bunningen - PhD Student, Data Management Technology
Univ. of Twente, Dept of EEMCS, POBox 217, 7500 AE Enschede, Netherlands
Email: bunninge at cs.utwente.nl, Phone: +31 53 489 4290, Room: INF3061
WWW: http://www.cs.utwente.nl/~bunninge

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