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Title: Morphology, analogy and machine translation
Author: Pirrelli, Vito
ISNI:       0000 0001 3491 8897
Awarding Body: University of Salford
Current Institution: University of Salford
Date of Award: 1993
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The following straightforward questions: "What domain of linguistic knowledge is dealt with in this work?", "How are these phenomena approached from a formal standpoint?" and "What for?". They thus define the three main axes around which the present interdisciplinary investigation revolves: main topic, methodology and intended purpose or range of application. Topic apart, methodology and purpose are strongly interconnected, in much the same way as the form of an object is related to its function. So, the present research is orientated towards the representation of morphological phenomena as rather abstract formal linguistic objects, that are expected to function as a kind of exchange format aimed at interfacing two or more languages in a "transfer-based" Machine Translation System. As to the nature and content of these representations, many alternative proposals, put forward in both theoretical and computational linguistic circles, are carefully considered and extensively discussed. In particular, I take advantage of insights coming from "Word and Paradigm Morphology" and "Functional Grammar". In the end, an original computational framework is presented in somewhat detail, that crucially hinges on the notion of linguistic Analogy, as an effective, formal procedure for extending linguistic generalizations from known cases to unknown ones. Within this framework the set of morphological rules and the Lexicon are not implemented as separate grammatical compartments, as in most computational models I know of, but they are really part and parcel of the same self-modelling network of lexical redundancies. This move makes the whole computational machinery efficient and cost-effective, while providing a convenient and elegant solution to a number of non-trivial theoretical paradoxes raised in the relevant literature. Such a model has already been subjected to the test of a computational implementation, and some results of its application to aspects of Italian Morphology are detailed in the final part of this work.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Linguistics