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Simple Search
Hits 1 – 12 of 12
1
BBN: Description of the PLUM System as Used for MUC-6
Weischedel, Ralph
;
Ayuso, Damaris
;
Bikel, Daniel
...
In: DTIC (1995)
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2
BBN: Description of the PLUM System as Used for MUC-5
Weischedel, Ralph
;
Ayuso, Damaris
;
Boisen, Sean
...
In: DTIC (1993)
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3
BBN's PLUM Probabilistic Language Understanding System
Weischedel, Ralph
;
Ayuso, Damaris
;
Boisen, Sean
...
In: DTIC (1993)
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4
A Practical Methodology for the Evaluation of Spoken Language Systems
Boisen, Sean
;
Bates, Madeleine
In: DTIC (1992)
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5
A New Approach to Text Understanding
Weischedel, Ralph
;
Ayuso, Damaris
;
Boisen, Sean
...
In: DTIC (1992)
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6
BBN: Description of the PLUM System as Used for MUC-4
Ayuso, Damaris
;
Boisen, Sean
;
Fox, Heidi
;
Gish, Herb
;
Ingria, Robert
;
Weischedel, Ralph
In: DTIC (1992)
Abstract:
Traditional approaches to the problem of extracting data from texts have emphasized hand-rafted linguistic knowledge. In contrast, BBN's PLUM system (Probabilistic Language Understanding Model) was developed as part of a DARPA-funded research effort on integrating probabilistic language models with more traditional linguistic techniques. Our research and development goals are * more rapid development of new applications, * the ability to train (and re-train) systems based on user markings of correct and incorrect output, * more accurate selection among interpretations when more than one is found, and * more robust partial interpretation when no complete interpretation can be found. A central assumption of our approach is that in processing unrestricted text for data extraction, a non-trivial amount of the text will not be understood. As a result, all components of PLUM are designed to operate on partially understood input, taking advantage of information when available, and not failing when information is unavailable. We had previously performed experiments on components of the system with texts from the Wall Street Journal, however, the MUC-3 task was the first end-to-end application of PLUM. Very little hand-tuning of knowledge bases was done for MUC-4; since MUC-3, the system architecture as depicted in figure 1 has remained essentially the same. In addition to participating in MUC-4, since MUC-3 we focused on porting to new domains and a new language, and on performing various experiments designed to control recall/precision tradeoffs. To support these goals, the preprocessing component and the fragment combiner were made declarative; the semantics component was generalized to use probabilities on word senses; we expanded our treatment of reference; we enlarged the set of system parameters at all levels; and we created a new probabilistic classifier for text relevance which filters discourse events. ; Presented at the Message Understanding Conference (4th) (MUC-4), held in McLean, VA on 16-18 June 1992. Pub. in the Proceedings of the Message Understanding Confeence (4th) (MUC-4), 1992. Paper M92-1024.
Keyword:
*INFORMATION RETRIEVAL
;
*KNOWLEDGE BASED SYSTEMS
;
*LANGUAGE TRANSLATION
;
*MATHEMATICAL MODELS
;
*MESSAGE UNDERSTANDING
;
*PROBABILISTIC LANGUAGE UNDERSTANDING MODELS
;
*TEXT PROCESSING
;
ACCURACY
;
COMPUTATIONAL LINGUISTICS
;
COMPUTER ARCHITECTURE
;
Cybernetics
;
DISCOURSE PROCESSING
;
FPP(FAST PARTIAL PARSER)
;
Information Science
;
Linguistics
;
MARKERS
;
MARKOV MODELS
;
MARKOV PROCESSES
;
PARSERS
;
PARTIAL UNDERSTANDING
;
PLUM(PROBABILISTIC LANGUAGE UNDERSTANDING MODEL)
;
PRECISION
;
PREPROCESSING
;
PROBABILITY
;
RECALL
;
SEMANTIC INTERPRETER
;
SEMANTICS
;
SYMPOSIA
;
TEMPLATES
;
TEXT CLASSIFIERS
;
TEXT RELEVANCE
;
WORD TAGGING
URL:
http://www.dtic.mil/docs/citations/ADA460888
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA460888
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7
BBN PLUM: MUC-4 Test Results and Analysis
Weischedel, Ralph
;
Ayuso, Damaris
;
Boisen, Sean
...
In: DTIC (1992)
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8
BBN PLUM: MUC-3 Test Results and Analysis
Weischedel, Ralph
;
Ayuso, Damaris
;
Boisen, Sean
...
In: DTIC (1991)
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9
BBN: Description of the PLUM System as Used for MUC-3
Weischedel, Ralph
;
Ayuso, Damaris
;
Boisen, Sean
...
In: DTIC (1991)
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10
Adaptive Natural Language Processing
Ayuso, Damaris
;
Boisen, Sean
;
Bobrow, Robert
...
In: DTIC AND NTIS (1991)
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11
The BBN Spoken Language System
Boisen, Sean
;
Chow, Yen-Lu
;
Haas, Andrww
...
In: DTIC (1989)
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12
Morphology as a computational problem
Dolan, William B.
(Mitarb.);
Emmorey, Karen
(Mitarb.);
Cornell, Thomas Longacre
(Mitarb.). - Los Angeles : Univ. of California, Dep. of Linguistics, 1988
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