• Skip to primary navigation
  • Skip to main content
SRI logo
  • About
    • Press room
  • Expertise
    • Advanced imaging systems
    • Artificial intelligence
    • Biomedical R&D services
    • Biomedical sciences
    • Computer vision
    • Cyber & formal methods
    • Education and learning
    • Innovation strategy and policy
    • National security
    • Ocean & space
    • Quantum
    • QED-C
    • Robotics, sensors & devices
    • Speech & natural language
    • Video test & measurement
  • Ventures
  • NSIC
  • Careers
  • Contact
  • 日本支社
Search
Close
Cyber & formal methods publications June 1, 1984 Journal Article

Notes From The Unification Underground: A Compilation Of Papers On Unification-Based Grammar Formalisms

Citation

Copy to clipboard


Sheiber, S. M., Karttunen, L., & Pereira, F. C. (1984). Notes from the Unification Underground: A Compilation of Papers on Unification-Based Grammar Formalisms. SRI INTERNATIONAL MENLO PARK CA ARTIFICIAL INTELLIGENCE CENTER.

Abstract

This report is a compilation of papers by the PATR group in the Artificial Intelligence Center at SRI International reporting on ongoing research on both practical and theoretical issues concerning grammar formalisms. The current formalism being simultaneously designed, implemented and used by the group, PATR-II, is based on unification of directed-graph structures. Unification is thus a theme both of our research, and of the papers reproduced in this volume. These papers provide an overview of the design of PATR-II (Chapter 1), a discussion of the use of disjunction and negation in unification-based feature systems (Chapter 2), and a theoretical framework for unification-based grammar formalisms which is founded on the domain-theoretic techniques of Data Scott (Chapter 3). All three chapters are versions of papers presented at the Tenth International Conference on Computational Linguistics at Stanford University, Stanford, California during July 2 through 7, 1984. The research was initially part of the KLAUS (Knowledge Learning and Using System) project at SRI, set up with the intention of experimenting with mathematically well-founded alternatives to the DIALOGIC natural-language processing system. The more theoretical research was made possible in part by a gift from the Systems Development Foundation and was conducted as part of a coordinated research effort with the Computer Language subprogram at the Center for the Study of Language and Information, Stanford University. The PATR group at SRI is a rather liquid group of researchers which has included, at various times, John Bear, Lauri Karttunen, Fernando Pereira, Jane Robinson, Stan Rosenschein, Stuart Shieber, Susan Stucky, Mabry Tyson, and Hans Uszkoreit. The research reported here is a direct result of their aid and interaction. However, they should not be blamed for any errors in the present work, nor should the opinions expressed herein be construed as indicative of their personal predilections.

↓ Download

Share this

How can we help?

Once you hit send…

We’ll match your inquiry to the person who can best help you.

Expect a response within 48 hours.

Career call to action image

Make your own mark.

Search jobs

Our work

Case studies

Publications

Timeline of innovation

Areas of expertise

Institute

Leadership

Press room

Media inquiries

Compliance

Careers

Job listings

Contact

SRI Ventures

Our locations

Headquarters

333 Ravenswood Ave
Menlo Park, CA 94025 USA

+1 (650) 859-2000

Subscribe to our newsletter


日本支社
SRI International
  • Contact us
  • Privacy Policy
  • Cookies
  • DMCA
  • Copyright © 2022 SRI International