Linguistics 575: Semantic Representations
Spring quarter, 2013
- Emily M. Bender
- Office Hours: Fridays 1-3 starting 4/19 & by appointment
- Office: Padelford A-219
- Phone: 543-6914
- Email: ebender at u
The English Resource Grammar (Flickinger 2000, 2011) is a
broad-coverage precision grammar for English, written in HPSG (Pollard
and Sag 1994) and producing semantic representations in the format of
Minimal Recursion Semantics (Copestake et al 2005). It encompasses
analyses of a wide range of phenomena in English, and a key piece of
each analysis is the design of the resulting semantic representation.
The MRS representations are built compositionally by the grammar and
represent a significant abstraction away from the surface string. At
the same time, they are still relatively closely tied to the surface
string, when compared to other encoding systems
for knowledge (and meaning) which have been proposed.
The goal of this seminar is to come to a better understanding of the
relationship between the information encoded in MRS (as produced by
the ERG) and the information needs of downstream applications which
take semantic representations as input. We will begin with an
overview of MRS, and then move to alternative meaning representations.
Term projects will involve developing mappings between MRS and other
representations, based on data sets which have target representations
included in their annotations. It is expected that each such mapping
will reveal information that is in the MRS but not in the target
representation and vice versa.
Note: To request academic accommodations due to a
disability, please contact Disabled Student Services, 448 Schmitz,
206-543-8924 (V/TTY). If you have a letter from Disabled Student
Services indicating that you have a disability which requires academic
accommodations, please present the letter to the instructor so we can
discuss the accommodations you might need in this class.
- KWLH paper (approx 7 pages) (20).
- Smaller assignments (10)
- In-class presentations (5)
- Participation in discussions (15).
- Term project (50).
Schedule of Topics and Assignments (may be updated)
What is meaning? What is semantics?
The DELPH-IN ecology
|Szabó 2012, Speaks 2010
||Sample MRS output from the ERG|
||The Conduit Metaphor
Minimal Recursion Semantics
|Reddy 1979, Clark 1996 (Ch 5 -- available on CommonView),
Copestake et al 2005
||KWLH: K and W due|
||Target corpora presentations
||Target corpora descriptions
||Crouch 2005, Crouch and King 2006Basile et al 2012, Venhuizen et al 2013
||Evaluation, evaluation presentations
||Zhang et al ms (Section 5)
||Evaluation plan descriptions|
||Koller and Thater 2005, Koller et al 2008,
Evang and Bos 2013
||Term project presentations
||No class: Memorial Day holiday
||Term project presentations
||KWLH papers due|
||Final projects due 11pm|
- Baker, Collin F., Charles J. Fillmore, and John B. Lowe. 1998. The Berkeley FrameNet project. Proceedings of the 17th international conference on Computational linguistics-Volume 1. Association for Computational Linguistics, 1998.
- Basile, Valerio, et al. 2012. Developing a large semantically annotated corpus. Proceedings of the Eighth International Conference on Language Resources and Evaluation (LREC'12).
- Clark, Herbert H. 1996. Using language. Cambridge: Cambridge University Press.
- Copestake, A., Flickinger, D., Pollard, C., & Sag, I. A. 2005. Minimal
recursion semantics: An introduction. Research on Language & Computation, 3 (4), 281-332.
- Crouch, Richard. 2005. Packed rewriting for mapping semantics to KR. Proceedings of the 6th International Workshop on Computational Semantics.
- Crouch, Dick, and Tracy Holloway King. 2006. Semantics via f-structure rewriting. Proceedings of the LFG06 Conference.
- Dridan, Rebecca and Stephan Oepen. 2011. Parser evaluation using elementary dependency matching. Proceedings of the 12th International Conference on Parsing Technologies. Association for Computational Linguistics.
- Kilian Evang, Johan Bos. 2013. Scope Disambiguation as a Tagging Task. Proceedings of the 10th International Conference on Computational Semantics (IWCS 2013), pp 314-320, Potsdam, Germany
- Kim, J-D., et al. 2003. GENIA corpus--a semantically annotated corpus for bio-textmining. Bioinformatics 19.suppl 1: i180-i182.
- Koller, Alexander, Michaela Regneri, and Stefan Thater. 2008. Regular tree grammars as a formalism for scope underspecification. Proceedings of ACL-08: HLT.
- Koller, Alexander, and Stefan Thater. 2005. Efficient solving and exploration of scope ambiguities. Proceedings of the ACL 2005 on Interactive poster and demonstration sessions. Association for Computational Linguistics.
- Venhuizen, Noortje, Johan Bos, and Harm Brouwer. 2013 Parsimonious Semantic Representations with Projection Pointers. Proceedings of the 10th International Conference on Computational Semantics (IWCS 2013), pp 252-263, Potsdam, Germany
- Palmer, Martha, Daniel Gildea, and Paul Kingsbury. 2005. The proposition bank: An annotated corpus of semantic roles. Computational Linguistics 31.1: 71-106.
- Reddy, Michael J. 1979. The conduit metaphor: A case of frame conflict in our language about language. Metaphor and thought 2: 164-201.
- Roberts, Angus, et al. 2009. Building a semantically annotated corpus of clinical texts. Journal of biomedical informatics 42.5: 950-966.
ebender at u dot washington dot edu
Last modified: 3/31/13