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1
Program Composition
In: DTIC AND NTIS (1994)
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2
Research in Knowledge Delivery
In: DTIC AND NTIS (1989)
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3
Knowledge Delivery Research.
In: DTIC AND NTIS (1986)
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4
Prerequisites for Deriving Formal Specifications from Natural Language Requirements.
In: DTIC AND NTIS (1983)
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5
Design of a System That Understands Informal Specifications.
In: DTIC AND NTIS (1983)
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6
Knowledge Representation and Natural-Language Semantics.
In: DTIC AND NTIS (1983)
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7
Mapping between Semantic Representations Using Horn Clauses.
In: DTIC AND NTIS (1983)
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8
File Searching Problems in Logic Programming Systems.
In: DTIC AND NTIS (1983)
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9
Two Discourse Generators. A Grammar and a Lexicon for a Text-Production System.
In: DTIC AND NTIS (1982)
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10
Functional Semantics.
In: DTIC AND NTIS (1982)
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11
The Anatomy of a Systemic Choice.
In: DTIC AND NTIS (1982)
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12
Flexible Parsing
In: DTIC AND NTIS (1981)
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13
Prerequisites to Deriving Formal Specifications from Natural Language Requirements.
In: DTIC AND NTIS (1981)
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14
Maximal Objects and the Semantics of Universal Relation Databases.
In: DTIC AND NTIS (1981)
Abstract: The universal relation concept is intended to provide the database user with a simplified model in which he can compose queries without regard to the underlying structure of the relations in the database. Frequently, the lossless join criterion provides the query interpreter with the clue needed to interpret the query as the user intended. However, some examples exist where interpretation by the lossless join rule runs contrary to our intuition. To handle some of these cases, we propose a concept called maximal objects, which modifies the universal relation concept in exactly those situations where it appears to go awry-when the underlying relational structure has 'cycles'. We offer examples of how the maximal object concept provides intuitively correct interpretations. We also consider how one might construct maximal objects mechanically from purely syntactic structural information-the relation schemes and functional dependencies about the database. (Author) ; Sponsored in part by Grant NSF-IST80-21358.
Keyword: *DATA BASES; *INTERROGATION; *USER NEEDS; ALGORITHMS; Linguistics; Lossless join rule; MODELS; OPTIMIZATION; PE61102F; Query interpretation; SEMANTICS; SIMPLIFICATION; SYNTAX; Universal relation databases; UTILIZATION; WUAFOSR2304A2
URL: http://www.dtic.mil/docs/citations/ADA113024
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA113024
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15
An Algebraic Structure Theory of Rule Sets. I. A Formalization of Both Production Systems and Decision Tables.
In: DTIC AND NTIS (1981)
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16
Prerequisites to Deriving Formal Specifications from Natural Language Requirements.
In: DTIC AND NTIS (1980)
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17
Computer as Author -- Results and Prospects.
In: DTIC AND NTIS (1980)
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18
Translation of Phrase Structured Programming Languages.
In: DTIC AND NTIS (1979)
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19
Acoustic/Linguistic Aspects of Automatic Speech Recognition.
In: DTIC AND NTIS (1979)
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20
Acoustic/Linguistic Aspects of Automatic Speech Recognition.
In: DTIC AND NTIS (1978)
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