[developers] semi.vpm and trigger rules (and KNOPPIX+LKB)

Sanghoun Song sanghoun at uw.edu
Thu May 23 04:03:46 CEST 2013

As I see, if either of them (or both) appears, trigger.mtr does not
work correctly.

(i) * >> u in semi.vpm
(ii) (setf *variable-type-mapping* :semi) in lkb/mrsglobals.lsp

For instance, if the input sentence is [犬 が 吠える], and both of them
above are removed, three sentences are generated (犬 が 吠える / 犬 は 吠える /
犬 吠える). But, if at least one of them exists, only [犬 吠える] (without
semantically empty adpositions) is generated.


On Wed, May 22, 2013 at 6:50 PM, Sanghoun Song <sanghoun at uw.edu> wrote:
> Dear All,
> I tested this on my ubuntu machine (not KNOPPIX+LKB) with my toy
> Japanese grammar, and found that trigger rules do not work properly
> either. I also found that the following line in semi.vpm causes the
> problem.
> * >> u
> If the line is removed, the generation works correctly with trigger.mtr.
> As a test, I added the following two lines into lkb/mrsglobals.lsp,
> but the trigger rules still do not work.
> (setf *show-lnk-p* nil)
> (setf *variable-type-mapping* :semi)
> Sanghoun
> On Wed, May 22, 2013 at 5:24 PM, Emily M. Bender <ebender at uw.edu> wrote:
>> Dear all,
>> Another discovery from working with MT in Ling 567
>> this week:
>> Once we turn on the vpm, with the following line in lkb/script:
>> (mt:read-vpm (lkb-pathname (parent-directory) "semi.vpm") :semi)
>> ... our trigger rules stop working.  The grammar still loads fine, but
>> the trigger rules don't match and the semantically empty entries aren't
>> triggered. We suspect its because they reference "event", "handle", etc.
>> but the post-VPM MRSs have "e", "h", et al instead.
>> We noticed that the trigger rules in the ERG and Jacy reference
>> the types event, handle, etc and so suspect there is some setting
>> somewhere that tells the trigger rules to work on the post-VPM,
>> grammar-internal MRS that we are missing.  Is there?  If not,
>> any ideas on what else it might be?
>> Thanks,
>> Emily
>> p.s. I haven't had a chance to confirm yet whether this is
>> specific to KNOPPIX+LKB or also true in the LOGON distribution.
>> --
>> Emily M. Bender
>> Associate Professor
>> Department of Linguistics
>> Check out CLMS on facebook! http://www.facebook.com/uwclma
> --
> ====================================
> Sanghoun Song (PhC)
> Dept. of Linguistics, Univ. of Washington
> http://corpus.mireene.com
> ====================================

Sanghoun Song (PhC)
Dept. of Linguistics, Univ. of Washington

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