[Attempto] [ACE Lexicon]

[Norbert E. Fuchs]

On 6 Dec 2010, at 11:35, mohammed nasri wrote:

> I'm trying to map the library databas, the example cited by John Sowa in this article (and used by Rolf Schwitter in his dissertation) to a DRS structure using APE, this system is a set of rules. Here is an example of on them :
> If a copy of a book is checked out to a borrower
>    and a staff member returns the copy
> then the copy is available.
> 
> When I try to parse this rule using APE, many words are not known, "copy", "borrower ", "staff", "returns" and "available".
> 
> Is there a ACE lexicon richer that the one I use (6.5) ? 


On 6 Dec 2010, at 11:53, Jean-Marc Vanel wrote:

> 2010/12/6 mohammed nasri <mohammed.nasri at gmail.com>
>> ....
> 
> Mais oui !
> yes indeed!
> 
> Just donwload the ACE lexicon, from the ATTEMPTO download page, and
> copy clex_lexicon.pl inside your ape/ directory, overriding the
> original (small) file.

Mohammed

Even following Jean-Marc's excellent advice you will find that the full ACE lexicon does not contain all the words that you need for your example – and for the rest of the sentences derived from the library data base problem. In fact, there are two additional things that you have to do.

First, multi-words like "checked out" and "staff member" must by hyphenated, i.e. written as "checked-out" and "staff-member".

Second, words like "staff-member" do not occur in the ACE lexicon. You have three possibilities to make them known to the parser: add them to the lexicon or devise your own user lexicon (best solution), use prefixes like n:, or parse with word guessing. Check the Attempto documents how to do all of this.

Let me know if you have problems.

Regards.

   --- nef