Download e-book for iPad: An Introduction to Machine Translation by W. John Hutchins, Harold L. Somers

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By W. John Hutchins, Harold L. Somers

ISBN-10: 012362830X

ISBN-13: 9780123628305

The interpretation of overseas language texts by means of desktops was once one of many first initiatives that the pioneers of computing and synthetic intelligence set themselves. computing device translation is back turning into a tremendous box of analysis and improvement because the desire for translations of technical and advertisement documentation is growing to be well past the ability of the interpretation occupation. this can be the 1st textbook of computer translation, delivering a whole direction on either basic computing device translation structures features and the computational linguistic foundations of the sphere. laptop Translation assumes no prior wisdom of the sector and gives the fundamental historical past info to the linguistic and computational foundations of the topic. it truly is a useful textual content for college kids of computational linguistics, synthetic intelligence, usual language processing, and knowledge technological know-how.

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3 Feature-based representations In several sections above we have mentioned additional features — syntactic and semantic — which play a part in linguistic representation. In general, features can be represented as attributes with corresponding values, and as such are often called ‘attribute-value pairs’. Features can be used to represent almost everything we have discussed so far: ‘category’ can be an attribute with values such as ‘noun’, ‘verb’, ‘noun phrase’, etc; grammatical features such as ‘gender’, ‘number’, ‘tense’ are all possible attributes, with the expected range of values; ‘surface function’ might have values such as ‘subject’, ‘modifier’ and so on, while there might be a parallel attribute ‘deep function’, with the same range of values.

The head or ‘governor’ of the whole sentence is the main verb. We can indicate sequence in a dependency tree by convention: either by attaching significance to the ordering of branches or by labelling the branches with information from which the sequence can be derived. The first approach is illustrated in (19b) where the branches are ordered left-to-right in a sequence which corresponds to English word order. However, in this case we need also some general and specific rules to know where the governor fits in the sequence.

In the following decade MT research took place largely outside the United States, in Canada and in Western Europe, and virtually ignored by the scientific community. American activity had concentrated on English translations of Russian scientific and technical materials. In Canada and Europe the needs were quite different: the Canadian bicultural policy created a demand for English-French (and to a less extent French-English) translation beyond the capacity of the market, and the European Economic Community (as it was then known) was demanding translations of scientific, technical, administrative and legal documentation from and into all the Community languages.

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An Introduction to Machine Translation by W. John Hutchins, Harold L. Somers

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