LINGUIST List 7.491

Sun Mar 31 1996

Calls: Breadth & Depth of Sematic Lexicons (Extension)

Editor for this issue: Ann Dizdar <dizdartam2000.tamu.edu>

Directory

1. Evelyne Viegas, ACL'96 Workshop on BREADTH & DEPTH of SEMANTIC LEXICONS: Deadline Extension

		********************************************
		 DEADLINE EXTENSION

		New Deadline for Submission: April 15, 1996
		********************************************


 SIGLEX 96 -- CALL for PAPERS

ACL'96 Workshop on the BREADTH and DEPTH of SEMANTIC LEXICONS

June 28, 1996
Santa Cruz, California, USA.	


Building semantic lexicons is a very time consuming task. Efficient
large-scale acquisition and representation of lexical knowledge will
be greatly aided by capturing regularities in the lexicon.

Two main issues present themselves:

a) treatment of lexical ambiguity and
b) lexical rules as a conceptual tool for controlled proliferation of
entries.

Whereas the former has been regarded as a topical issue for quite some
time, the latter is only now receiving its due attention. This
workshop will concentrate on lexical rules as a regulator of breadth
and depth of the lexicons. Lexical rules are known under a variety of
names, e.g., Leech's (1991) "semantic transfer rules," "lexical
inference rules" of Ostler and Atkins (1991) and others. They are also
addressed in the framework of such theories as the generative lexicon
of Pustejovsky (1995). Such linguistic frameworks as LFG and HPSG have
also used the concept, albeit in a different sense and for a different
purpose. At the same time, theoretical accounts of the use of lexical
rules (such as, for instance, preemption or blocking) are rather too
general and underspecified to support actual processing. The workshop
will stress issues connected with the practical application of lexical
rules: when to apply the rules, how the rules influence system design,
how to reexamine and adjust the theoretically posited rules in view of
practical needs and evidence. Another central issue for the workshop
will be large-scale acquisition of computational-semantic lexicons.
We are mainly interested in examining the following trade-offs: the
coverage vs.the depth of existing semantic lexicons vs. the effort
involved in building them.

The workshop is intended for researchers in computational linguistics,
artificial intelligence, psycholinguistics or other fields who have
been working in lexical semantics and large-scale lexical knowledge
acquisition.

Some (though not necessarily all) specific questions suggested for
discussion include:

1) What are the different types of lexical rules which should be
considered in the building of computational lexicons (inflectional and
derivational morphology, verbal diatheses, regular word-sense shifts,
other)

2) When should the rules be applied (run-time, load-time,
acquisition, other)

3) How to evaluate the cost-efficiency of the acquisition effort
against the utility of the resulting lexicons. How could we
characterize an NLP system along the dimensions of size, corpus
coverage, and depth.

4) Analyses of appropriate types of inheritance for different lexical
rules.

5) The use of lexical underspecification (and contextual word-use
grounding) as a partial alternative to lexical rules.

Computational and descriptive case studies are welcome. However,
submissions should centrally address one of the above issues rather
than simply describe a system or a theory. We greatly encourage the
submission of original and unplished work.


WORKSHOP ORGANIZATION:

Presentations will last for 30 minutes, of which at least 5 minutes
(preferably, more) must be allocated for discussion. Papers will be
organized around themes. A summary general discussion will be
scheduled at the end of the day. Attendees are required to register
for the main ACL-96 conference.

SUBMISSIONS

Submissions must include a descriptive abstract of about 200 words and
should not exceed 3,000 words, excluding the references. Electronic
submissions are encouraged and should be submitted either directly or
by email as described below. The title page should include Title of
the paper, names, adresses, email, telephone and fax number of all
authors, and the abstract. Any correspondance will be adressed to the
first author. Questions concerning the workshop should be sent to
lex-rulecrl.nmsu.edu.

For electronic submissions, please name your files with the name of
the first author. For instance, Geraldine Lavaud, first author, will
place there the following files:

	lavaud.ps		the .ps version of her paper
	lavaud.ascii		the .ascii version of her paper only
				 if postcript is not available
	lavaud.author		the .ascii file of the title page
				 (title, authors names, adresses, abstract)

Directions to submit directly:

	ftp crl.nmsu.edu
	login: anonymous
	password: <your email address>
	cd lex-incoming
	binary (only if your paper is not in ascii format)
	put <names of your paper>
	quit

If submitted by e-mail, use:

	lex-rulecrl.nmsu.edu


Directions to submit by mail:

If hard-copy submission is inevitable, send 5 copies of the paper to:

Evelyne Viegas
Computing Research Laboratory
New Mexico State University
Las Cruces, NM 88003
USA

email: lex-rulecrl.nmsu.edu
tel: 505 646 5757
fax: 505 646 6218


PRE-WORKSHOP ACTIVITIES:

In order to facilitate interaction and focus the discussion, a
pre-workshop mailing list will be established; please indicate whether
or not you would like to be included by sending e-mail to
lex-rulecrl.nmsu.edu. Participants will also be able to look at
other participants' papers a month before the workshop via anonymous
ftp to crl.nmsu.edu. The directions to look at other papers are:

ftp crl.nmsu.edu
login: anonymous
password: <your email address>
cd lex-rule
binary (only if the paper you want is not ascii)
get <name of paper>
quit


DEADLINES:

submission: April 15th, 1996 ***New deadline***
notification: April 30th, 1996
final version due: May 22th, 1996

SCHEDULES:

Asap:		Mosaic home page for the workshop set at
		http://crl.nmsu.edu/lex-rule/

April 30:	Beginning of e-mail discussion


PROGRAM COMMITTEE:

Evelyne Viegas (Chair)	New Mexico State University, CRL, USA
Sergei Nirenburg	New Mexico State University, CRL, USA
Boyan Onyshkevych	Carnegie Mellon University, USA
Nicholas Ostler Linguacubun Ltd, UK
Victor Raskin		Purdue University, USA
Antonio Sanfilippo	Sharp Laboratories of Europe, UK

ADDITIONAL REVIEWERS:
Philip Resnik		Sun Microsystems Laboratories; USA,
Frederique Segond	Rank Xerox Research Centre; France,
Evelyne Tzoukermann	ATT Bell Laboratories; USA.


PUBLICATIONS:

Final texts will be published in the Workshop Proceedings. Depending
on the quality of papers, publication in book form will be pursued.