[developers] Why is MODIFIED in SYNSEM

[Kristen Howell]

Thanks, Dan!

On Fri, Nov 10, 2017 at 2:41 AM, Dan Flickinger <danf at stanford.edu> wrote:

> Hi Kristen,
>
>
> Though I have not yet been able to remind myself of why MODIFIED is
> outside of LOCAL, one likely motivation was to allow for unbounded
> dependencies where the filler needs a different value for MODIFIED than
> would be required at the other end of the dependency, where the gap was
> introduced.  Since the value of SLASH is only of type `local', the values
> for MODIFIED could thus differ.  I can't come up with a compelling example
> where such a mismatch is needed, but I can imagine that we were unsure at
> the time, so made a conservative decision allowing for the possibility of
> finding the need for such a mismatch someday.  If there is never a need for
> allowing such a mismatch, then we would make stronger predictions by moving
> MODIFIED into LOCAL, and then it probably should be inside of CAT, but not
> HEAD.  I'll do a little more investigating to see if I can find evidence
> supporting the current cautious architecture.
>
>
>  Dan
>
>
>
>
> ------------------------------
> *From:* developers-bounces at emmtee.net <developers-bounces at emmtee.net> on
> behalf of Kristen Howell <kphowell at uw.edu>
> *Sent:* Thursday, November 9, 2017 10:55 AM
> *To:* developers
> *Subject:* [developers] Why is MODIFIED in SYNSEM
>
> Hi all,
>
> I am working on an analysis for adverbial subordinators in clausal
> modifiers in the Grammar Matrix, and I'm adding a feature similar to
> MODIFIED. This feature will track the presence of an adverb (so that a rule
> higher up can be sensitive to it).  It will "start" on the adverb (with
> different types corresponding to different adverbial subordinators) and be
> passed to the mother of the head-adj-phrase.
>
> Since this feature is very similar to MODIFIED (which the Grammar Matrix
> adopted from the ERG), I have put it in SYNSEM and more or less mirrored
> the way MODIFIED tracks in the grammar. My question is if anyone remembers
> why MODIFIED lives all the way out in SYNSEM. Of course it couldn't be a
> HEAD feature because it tracks with the modified daughter, but why not CAT
> or LOCAL?
>
> Best,
> Kristen
>
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