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

[Emily M. Bender]

Thanks, Woodley for solving the mystery!  In the interests
of not losing this information, I've added a comment about this
to RmrsVpm (despite the warning at the top of the page...).

Emily

On Wed, May 22, 2013 at 9:46 PM, Woodley Packard
<sweaglesw at sweaglesw.org> wrote:
> Hi Emily and Sanghoun,
>
> I verified that the problem occurs with matrix grammars both in KNOPPIX+LKB and in the main LOGON tree.  Sanghoun's suggestion of commenting out the "* >> u" mapping in the VPM did not do anything for me.
>
> However, after considerable head scratching, I came across what I believe is the real solution:  the "lkb/script" file produced by the matrix customization system puts the command to load the VPM *after* the command that loads the trigger rules.  These commands need to happen in the opposite order (presumably because the logic that loads transfer rules uses the VPM).  I moved the VPM loading command to immediately before the trigger rule loading command, and the problem was fixed.  I also see the ERG's lkb/script loads the VPM before the trigger rules.
>
> Cheers,
> Woodley
>
> On May 22, 2013, at 8:09 PM, Emily M. Bender wrote:
>
>> Thanks, Sanghoun.  This confirms my suspicion that the variable
>> types are the problem, but I thought we just decided that
>>
>> (setf *variable-type-mapping* :semi)
>>
>> was correct.  Should we back out of that, and have the semi
>> do event <> e, etc?
>>
>> Emily
>>
>> On Wed, May 22, 2013 at 7:03 PM, Sanghoun Song <sanghoun at uw.edu> wrote:
>>> 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.
>>>
>>> Sanghoun
>>>
>>>
>>> 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
>>> http://corpus.mireene.com
>>> ====================================
>>
>>
>>
>> --
>> Emily M. Bender
>> Associate Professor
>> Department of Linguistics
>> Check out CLMS on facebook! http://www.facebook.com/uwclma
>



-- 
Emily M. Bender
Associate Professor
Department of Linguistics
Check out CLMS on facebook! http://www.facebook.com/uwclma