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Hits 1 – 15 of 15
1
The need for accurate alignment in natural language system evaluation
Kehler, Andrew
;
Appelt, Douglas E.
;
Bear, John
In:
Computational linguistics. - Cambridge, Mass. : MIT Press
27 (2001) 2, 231-248
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2
SRI International FASTUS System MUC-6 Test Results and Analysis
Appelt, Douglas E.
;
Hobbs, Jerry R.
;
Bear, John
...
In: DTIC (1995)
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3
SRI International Fastus System MUC-4 Test Results and Analysis
Appelt, Douglas E.
;
Bear, John
;
Hobbs, Jerry R.
...
In: DTIC (1992)
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4
Communication and Attitude Revision
Appelt, Douglas E.
In: DTIC AND NTIS (1992)
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5
The TACITUS System: The MUC-3 Experience
Hobbs, Jerry R.
;
Appelt, Douglas E.
;
Bear, John S.
;
Tyson, Mabry
;
Magerman, David
In: DTIC (1991)
Abstract:
SRI International has been engaged in research on text understanding for a number of years. The Naval Ocean Systems Center (NOSC) has sponsored three workshops in recent years for evaluating text understanding systems. SRI participated in the first Message Understanding Conference (MUC-1) in June 1987 as an observer, and subsequently as a participant. Our system was evaluated in the second and third workshops, MUC-2 and MUC-3. For MUC-2, the task that the systems had to perform was to extract information for database entries saying who did what to whom, when, where, and with what result. The application domain for MUC-3 was news articles on terrorist activities in Latin America. The task was similar to that in MUC-2, though somewhat more information had to be extracted. The principal measures in the MUC-3 evaluation were recall and precision. Recall is the number of answers the system got right divided by the number of possible right answers. It measures how comprehensive the system is in its extraction of relevant information. Precision is the number of answers the system got right divided by the number of answers the system gave. It measures the system's accuracy. The system SRI used for these evaluations is called TACITUS. TACITUS is a system for interpreting natural language texts that has been under development since 1985. It has a preprocessor and postprocessor currently tailored to the MUC-3 application. It performs a syntactic analysis of the sentences in the text, using a fairly complete grammar of English, producing a logical form in first-order predicate calculus. Pragmatics problems are solved by abductive inference in a pragmatics, or interpretation, component. ; Sponsored in part by DARPA.
Keyword:
*ABDUCTIVE INTERPRETATION
;
*INFORMATION PROCESSING
;
*NATURAL LANGUAGE
;
*SYNTACTIC ANALYSIS
;
*TACITUS SYSTEM
;
*TEXT PROCESSING
;
*TEXT UNDERSTANDING SYSTEMS
;
Computer Programming and Software
;
DATA BASES
;
EXTRACTION
;
GRAMMARS
;
Information Science
;
Linguistics
;
PARSING
;
PRAGMATICS
;
PRECISION
;
RECALL
;
SYNTAX
URL:
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA461049
http://www.dtic.mil/docs/citations/ADA461049
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6
Robust Processing of Real-World Natural-Language Texts
Hobbs, Jerry R.
;
Appelt, Douglas E.
;
Bear, John
...
In: DTIC AND NTIS (1991)
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7
The interaction of language & the world
Appelt, Douglas E.
(Mitarb.);
Dahl, Deborah A.
(Mitarb.);
Kronfeld, Amichai
(Mitarb.)...
In:
Theoretical issues in natural language processing. - Hillsdale, N.J. [u.a.] : Erlbaum
(1989), 148-169
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8
Pragmatic aspects
Hovy, Eduard H.
(Mitarb.);
Jameson, Anthony
(Mitarb.);
McCoy, Kathleen F.
(Mitarb.)...
In:
Natural language generation. - Dordrecht [u.a.] : Nijhoff
(1987), 1-81
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9
Sammelaufnahme (Collective entry)
Shaw, David Elliot
(Mitarb.);
Grosz, Barbara J.
(Mitarb.);
Appelt, Douglas E.
(Mitarb.)...
In:
Artificial intelligence. - Amsterdam : Elsevier
32 (1987) 2, 151-280
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10
Systems
Green, Bert F.
(Mitarb.);
Wolf, Alice K.
(Mitarb.);
Chomsky, Carol
(Mitarb.)...
In:
Readings in natural language processing. - Los Altos, Calif. : Morgan Kaufmann
(1986), 539-657
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11
Generation
McKeown, Kathleen R.
(Mitarb.);
Appelt, Douglas E.
(Mitarb.);
MacDonald, David D.
(Mitarb.)
In:
Readings in natural language processing. - Los Altos, Calif. : Morgan Kaufmann
(1986), 475-537
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12
TEAM: An Experiment in the Design of Transportable Natural-Language Interfaces
Grosz, Barbara J.
;
Appelt, Douglas E.
;
Martin, Paul
...
In: DTIC (1986)
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13
Planning English referring expressions
Appelt, Douglas E.
In:
Artificial intelligence. - Amsterdam : Elsevier
26 (1985) 1, 1-33
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14
Natural language and speech
Appelt, Douglas E.
(Mitarb.);
Birnbaum, Lawrence
(Mitarb.);
Allen, James F.
(Mitarb.)...
In:
AAAI-82 (American Association for Artificial Intelligence - 1982). - Los Altos, Cal. : William Kaufmann, Inc.
(1982), 59-110
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15
Planning Natural-Language Utterances to Satisfy Multiple Goals
Appelt, Douglas E.
In: DTIC (1982)
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