Dear all,
I have a question about the XLE transfer system. Let me know in case I
need to send this to another distribution list (parsem?)
Since I haven't followed the development for some years now, I am unsure
whether some functionality may have been added or workarounds been found
regarding the following aspects.
1. marking and repeatedly executing a block of transfer rules that have
to be executed in sequence:
we have a set of rules A that need to be executed in sequence,
repeatedly. The number of loops needed is not known and can differ (only
an upper limit could be estimated).
- Can we place the block of rules A in a file that can then repeatedly
called/inserted? How would we state that?
2. Controlling the number of times such a block of rules needs to be
processed repeatedly. We could formulate a rule set or an external
procedure that executes a test each time a rule produces a new set of
facts, and checks for equality of two subsets.
Is there a way to execute such a test and if the condition is met, stop
the repeated execution of the rule block?
In essence, what we would like to achieve:
- A sequence A of transfer rules that continuously rewrite the input,
and that can be called repeatedly, without leaving the transfer process
(I/O would be too coslty).
- Each rule application in A executes a termination condition.
- This termination condition either needs to be defined as an external
prolog procedure (procedural attachment) or would require several rule
applications in a specified order.
I am aware of the limitations of the system that make such a scenario
difficult, but I wonder whether you can advise me on
- what are the limits of using procedural attachments (we would need
check two subsets of facts for identity)
- how possibly to employ "stop" in such a scenario
- how to effectivly call an identical rule set repeatedly (by listing
individual calls to an externally stored rule set of specified length?)
- any private knowledge of how to circumvent the difficulty
Thanks a lot for your help!
Best regards, Anette
PS: we are currently still using a release of 2010 (xle-2010-10-06), but
could switch versions, of course.
--
Prof. Dr. Anette Frank http://www.cl.uni-heidelberg.de/~frank
Computational Linguistics Department email: frank(a)cl.uni-heidelberg.de
University of Heidelberg phone: +49-(0)6221/54-3247
Im Neuenheimer Feld 325 secr: +49-(0)6221/54-3245
69120 Heidelberg, Germany fax: +49-(0)6221/54-3242
