Báo cáo khoa học: "A Computational Semantics for Natural Language" ppt

... grammar. [n our view, a computational semantics ['or a natural language has three essential components: 172 a. a system of conceptual representation for internal use as a computational medium ... A Computational Semantics for Natural Language Lewis G. Creary and Carl J. Pollard Hewlett-Packard Laboratories ... three different roles in the semantics of the Eng- lish noun cookie. e. There are computational processes in organisms for manipulating concepts e.g. methods for constructing com- plex concepts...

Báo cáo khoa học: "A LOGICAL SEMANTICS FOR NONMONOTONIC SORTS" pptx

... natural notion of consistency a set of formu- las is consistent if it is satisfiable. Testing a set of Kasper-Rounds formulas for consistency thus sim- ply reduces to finding a satisfier for ... would represent the information in Fig. 3 in terms of Kasper-Rounds default logic. The strict statements become normal KR formulas in W. For instance, the information for MIDDLE-VERBs (not ... these structures also be acyclic. For some systems O is defined only for sink nodes (PATR-II, for example). Fig. 1 shows a standard textual representation for a FS. We sometimes want to refer...

Báo cáo khoa học: "A Test Environment for Natural Language Understanding Systems" potx

... the system's performance on that application. The Parseval effort (Black (1991)) attempted to compare parsing performance across systems using the Treebank as a basis for comparison. Although ... have been used in natural language processing for a number of years (ATIS-3 (1991), MUC-6 (1995), Harman and Voorhees (1996)). Although these tests were originally designed for comparing different ... A Test Environment for Natural Language Understanding Systems Li Li, Deborah A. Dahl, Lewis M. Norton, Marcia C. Linebarger, Dongdong Chen Unisys Corporation 2476 Swedesford Road Malvern,...

Báo cáo khoa học: "A Functional Semantics of Natural Language Grammar" pot

... Generation Grammar, USC Information Sciences institute, Marina del Rey, CA 90291., Technical Report RR-8,3-113, 1983. 174 Inquiry Semantics: A Functional Semantics of Natural Language Grammar ... progress. With imposed control, information about how to satisfy the intention and plan is needed before the process is started. With active conformity, information is needed as the process ... responses. 1. information availability 2. information characterization 3. decomposition 4, linking (identification of related information) 5. mapping Some inquiries determine whether information...

Báo cáo khoa học: "A BIDIRECTIONAL MODEL FOR NATURAL LANGUAGE PROCESSING" pdf

... of bidirectional natural hmguage systems: ° systems that use uniform knowledge sources, but different processes • systems that use uniform knowledge sources as well as uniform processes 1 ... principle. But in some research areas uniform processing models have been developed that are based on formalisms which are well suited for uniform irepresentation and processing, e.g., ... knowledge representation for natural language 10 general". Currently, there exist only approximate solutions to this problem for example the use of canonical logical forms (cf. Shieber 88)....

Tài liệu Báo cáo khoa học: "A LOGICAL SEMANTICS FOR FEATURE STRUCTURES" pdf

... satisfiability problem for CNF formulas of propositional logic can be reduced to the consistency (or satisfia- bility) problem for formulas in FML. Thus, the consistency problem for formulas in FML ... to be a more appealing and natural notation for displaying linguistic descrip- tions, logical formulas provide a precise interpre- tation which can be useful for computational and mathematical ... Greek alpha- bet axe used to stand for arbitrary formulas in FML. The formulas NIL and TOP axe intended to convey gno information z and ~inconsistent in- formation s respectively. Thus, NIL...

Tài liệu Báo cáo khoa học: "A COMPUTATIONAL MECHANISM FOR PRONOMINAL REFERENCE" pot

... Association for Computational Linguistics: Proceedings of the Conference, Association for Computational Linguistics, Morristown, NJ, pp. 17-24. 271 A COMPUTATIONAL MECHANISM FOR PRONOMINAL ... Nouns", 26th Annual Meet- ing of the Association for Computational Linguis- tics: Proceedings of the Conference, Association for Computational Linguistics, Morristown, NJ, pp. 25 32. ... checked for minimality during a second. Since update-node is a general mechanism for adding or modifying information to a node on the basis of c-commanding constituents it is fairly straightforward...

Báo cáo khoa học: "A Computational Framework for Composition in Multiple Linguistic Domains" doc

... elvan@lcsl.metu.edu.tr Abstract We describe a computational framework for a grammar architecture in which dif- ferent linguistic domains such as morphol- ogy, syntax, and semantics are treated not as separate ... languages, affixes are attached to stems to form a word that may cor- respond to an entire phrase in a language like En- glish. For instance, in Turkish, word formation is based on suffixation of ... compositions such as [iyi [okumu~ 6ocuk]] or [[iyi okurnu~] ~ocuk] which yield ill-formed semantics for this utterance. As pointed out by Oehrle (1988), there is no rea- son to assume a...

Báo cáo khoa học: "A Compositional Semantics for Focusing Subjuncts" doc

... semantic object for the phrase. Proponents of com- positionM semantics argue that natural language it- self is for the most part compositional. In addition, using a composition semantics in semantic ... reading has a wider focus for the focusing sub- junct than the previous one. 2.2 Relevant propositions Our semantics employs a computational analogue of Rooth's p-sets for a frame representation. ... derived for the constituent, but lacking restrictive information associated with any focused components. 2.3 Two-part semantics In addition to p-sets, two semantic expressions are computed for...

Tài liệu Báo cáo khoa học: "A Pipeline Framework for Dependency Parsing" ppt

... allows that use of future information in ad-dition to past information. The pipeline model nat-urally allows access to all the past information.Algorithm 3 Pseudo code for the look ahead algo-rithm. ... ofcomputation in natural language processing for good reasons. It is based on the assumption thatsome decisions might be easier or more reliablethan others, and their outcomes, therefore, can becounted ... action for the pair; assignParent assigns a parent for thechild word based on the action; and deleteWorddeletes the child word in T at the focus once theaction is taken.Let t represents for...

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