LINGUIST List 2.568

Fri 27 Sep 1991

Disc: Features

Editor for this issue: <>


  1. Bob Kasper, Re: Q: Feature structures
  2. , Re: 2.561 Feature structures

Message 1: Re: Q: Feature structures

Date: Thu, 26 Sep 91 12:49:22 EDT
From: Bob Kasper <>
Subject: Re: Q: Feature structures
In response to the query of Jean Veronis <VERONISVASSAR.BITNET>
about disjunctive feature descriptions, I also addressed the
problem of how to avoid expansion to disjunctive normal form
in a paper presented at ACL-87:
Kasper, Robert.
A Unification Method for Disjunctive Feature Descriptions.
In Proceedings of the 25th Annual Meeting
of the Association for Computational Linguistics.
Stanford University, July 6-9, 1987.
Also available as USC/Information Sciences Institute Reprint RS-87-187.
The data structure for disjunctive feature descriptions that I present
in that paper can be regarded as a particular normal form that
localizes disjunctive information (for arbitrary disjunctive
descriptions), and the results of unification are also kept in that
form. I didn't explicitly address the formatting of the results in
the paper, but those data structures correspond quite directly to the
form you desire, and they are easy to translate into the type of
human-readable form that you suggest.
Bob Kasper
Dept. of Linguistics INTERNET:
Ohio State University
204 Cunz Hall
1841 Millikin Rd.
Columbus, OH 43210 (U.S.A.)
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Message 2: Re: 2.561 Feature structures

Date: Thu, 26 Sep 91 13:12:41 BST
From: <>
Subject: Re: 2.561 Feature structures
Yes but what has this to do with the cost of bread
or to paraphrase - is this in aywa connected with
what ordinary people do with language
can all this Boolean logic contribute somewhere or is
it just cleverness for its own sake - linguistics
away from the social or even the psychological?
I do not mean to be disrespectful - I just wonder!
John Wheatley
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