Ling7800/CSCI 7000: Computational Lexical Semantics

Spring 2013

Martha Palmer
Orin Hargraves

Time and Location: Tue/Thur, 12:30-1:45, Hellems 185
Assessment: Two homeworks, one Paper presentation, and a term project.
Office Hours: Martha Palmer, Hellems 295, Tuesday 3:30-5:30pm

Textbook: Semantic Role Labeling (eBook), Martha Palmer, Daniel Gildea, Nianwen Xue,
Synthesis Lectures on Human Language Technologies ,
ed., Graeme Hirst, Morgan & Claypool, 2010. ISBN: 9781598298321
available on line on campus through Chinook


Lexical semantics is becoming an increasingly important part of Natural Language Processing (NLP), as the field is beginning to address semantics at a large scale. This introductory lecture course will cover key issues in computational lexical semantics. We will start with an introduction to theoretical models of lexical semantics and events, considering both their adequacy as linguistic models and their place in NLP. We will then examine computational lexical resources and will consider both manual and automatic techniques for their development. The automatic techniques can be used to acquire lexical-semantic information from corpus data. On one extreme, such techniques can be fully supervised (requiring hand-labeled training data). On the other extreme, they can be fully unsupervised (learning lexical information from unlabeled text). In both cases, valuable lexical semantic information can be induced. Towards the end of the course we will discuss the role of lexical semantics in various current NLP applications.

Suggested Schedule and Readings - Open to Modification

Introduction and Module 1: the Lexical Semantics of Verbs - Chap 1

Module 2: Available Lexical Resources - Chap 2

Module 3: Word Sense Disambiguation

Module 4: Representations of Events

Module 5:Automatic Semantic Role Labeling - Chapter 3, 4

Module 6: Applications

Module 7: Student Presentations: Distributional Approaches

March 25-29, Spring Break

Module 7: Final Student Presentations

Module 8: Student Project Presentations

Final Exam - Student Project Presentations, Tuesday, May 7, 1:30-4:00 MUEN D 430, ICS Large conference room