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Lexical Ambiguity Resolution#R##N#Perspective from Psycholinguistics, Neuropsychology and Artificial Intelligence | 1988

Disambiguation in a Lexically Based Sentence Understanding System

Domenico Parisi; Cristiano Castelfranchi

Publisher Summary This chapter discusses a number of problems of disambiguation within a lexically-based model of sentence understanding system. Syntactic knowledge contributes to disambiguation through the disambiguation procedures. These procedures are carried by the lexical entries and applied to the preceding context and through the four well-formed principles that signal failures in syntactic garden path sentences. Encyclopedic knowledge operates through spreading activation and shortest path finding to select contextually appropriate readings of ambiguous words and to solve a number of additional problems of deep understanding. Currently the system is being revised to generate a more connectionist implementation with syntactic and encyclopedic knowledge represented in a more uniform way, in which understanding is obtained by an interaction of the two types of knowledge in a shared network. In the new implementation, disambiguation is brought about by following alternative paths in a parallel way, and waiting for both preceding and subsequent contexts, to send additional activation to one alternative and eliminate the others.


conference of the european chapter of the association for computational linguistics | 1985

GEMS: a model of sentence production

Domenico Parisi; Alessandra Giorgi

The paper describes GEMS, a system for Generating and Expressing the Meaning of Sentences, focussing on the generation task, i.e. how GEMS extracts a set of propositional units from a knowledge store that can be expressed with a well-formed sentence in a target language. GEMS is lexically distributed. After a central processor has selected the first unit(s) from the knowledge store and activated the corresponding lexical entry, the further construction of the sentences meaning is entrusted to the entries in the vocabulary. Examples of how GEMS constructs the meaning of a number of English sentence types are briefly described.


Archive | 1981

A goal analysis of some pragmatic aspects of language

Domenico Parisi; Cristiano Castelfranchi


Archive | 1976

Discourse as a hierarchy of goals

Domenico Parisi; Cristiano Castelfranchi


Archive | 1981

Answers, replies and reactions

Isabella Poggi; Cristiano Castelfranchi; Domenico Parisi


conference of the european chapter of the association for computational linguistics | 1983

WEDNESDAY: parsing flexible word order languages

Oliviero Stock; Cristiano Castelfranchi; Domenico Parisi


Archive | 1983

A procedure for constructin~ the meanin~ of sentences

Domenico Parisi; A. Di Giorgi


Archive | 2008

Le sette nane : una critica delle scienze dell'uomo e una proposta per un loro futuro migliore

Domenico Parisi; Cristiano Castelfranchi


international conference on computational linguistics | 1982

Free order languages: an experimental lexicon based parser

Cristiano Castelfranchi; Domenico Parisi; Oliviero Stock


Intelligence\/sigart Bulletin | 1982

Natural language project: Istituto di Psicologia, Roma, Italy

Cristiano Castelfranchi; Domenico Parisi; Oliviero Stock

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