[XLE] [ParGram] semantic roles for LFG grammar engineering

[Anette Frank]

Dear Adam,

I am not familiar with Sowa's system.

FrameNet roles have the advantage that you will be able to assign an 
appropriate
role to any argument, given that the roles are frame-specific. At the 
other extreme
you have the PropBank labeling scheme, which implements sth. like Dowty's
Proto-Roles plus some extra arguments and adjuncts. It's a small 
inventory, and
the same across all predicates. Since they are close to syntax they are 
more easy
to automatically assign, but they do not convey a clear semantics.
VerbNet lies in the middle, but the assignment of roles is more 
difficult, and so is the
mapping from syntax to semantics.

Your choice will depend a lot on what you want to do with the 
representations and
how much effort you can or want to invest in annotation and learning a 
mapping.

Kind regards, Anette

On Feb 2, 2014, at 1:45 PM, Adam Przepiorkowski <adamp at ipipan.waw.pl> 
wrote:
>> Dear All,
>>
>> [Apologies for cross-posting.]
>>
>> In the context of enriching the Polish LFG grammar with semantic
>> representation, we are looking for a set of semantic roles (Agent,
>> Patient, Beneficiary, etc.) that could be used to mark arguments (and
>> possibly adjuncts) of verbs and other predicates.  This set should be
>> exhaustive in the sense that it should be possible to assign – more or
>> less deterministically – a semantic role to any argument (and possibly
>> adjunct) of any predicate.  For this reason the standard – in LFG
>> textbooks – sets of some 7 semantic roles do not seem sufficient.
>> Instead, we are looking at larger repertoires proposed in VerbNet, in
>> FrameNet and in John W. Sowa's work on Knowledge Representation.
>>
>> We don't have any strong views about any particular set of semantic
>> roles, as long as it is exhaustive and applicable to real texts (as
>> opposed to being merely theoretically interesting).  Has anybody in the
>> LFG community faced a similar task?  If so, what set of semantic roles
>> would you recommend?  At the moment, we are wavering between VerbNet and
>> Sowa's system, both being more manageable than numerous roles offered
>> in FrameNet, but we are open to other solutions.
>>
>> Many thanks, best regards,
>>
>> Adam P.
>>
>> -- 
>> Adam Przepiórkowski                          ˈadam ˌpʃɛpjurˈkɔfskʲi
>> http://clip.ipipan.waw.pl/ ____ Computational Linguistics in Poland
>> http://jlm.ipipan.waw.pl/ ___________ Journal of Language Modelling
>> http://zil.ipipan.waw.pl/ ____________ Linguistic Engineering Group
>> http://nkjp.pl/ _________________________ National Corpus of Polish
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-- 

Prof. Dr. Anette Frank            http://www.cl.uni-heidelberg.de/~frank
Computational Linguistics Department   email: frank at 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