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By W. John Hutchins, Harold L. Somers

The interpretation of international language texts via pcs was once one of many first initiatives that the pioneers of computing and synthetic intelligence set themselves. desktop translation is back turning into a big box of study and improvement because the desire for translations of technical and advertisement documentation is starting to be well past the skill of the interpretation occupation. this can be the 1st textbook of laptop translation, offering a whole direction on either common computing device translation structures features and the computational linguistic foundations of the sphere. computer Translation assumes no earlier wisdom of the sector and offers the fundamental heritage info to the linguistic and computational foundations of the topic. it really is a useful textual content for college students of computational linguistics, synthetic intelligence, average language processing, and data technological know-how.

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Rules apply to the grammatical categories. g. noun phrase, subordinate clause, sentence. Syntactic description also recognises subcategories or grammatically significant subdivisions of the categories, as mentioned in the previous section. Linguists find it useful to distinguish major and minor categories. The major categories are the ones with large membership: nouns, verbs, adjectives. These are sometimes called open class categories, because new members are continually being added to the set (by making new derivations or compounds).

In fact, the dependency notion of governorship can be incorporated into a phrase structure grammar by singling out in each rule one of the daughters as being the governor. ) The precedence relationship obviously corresponds to the idea of sequence mentioned earlier. In a phrase structure grammar, syntactic functions can be defined in terms of dominance and precedence. For example, ‘subject’ might be defined as being the NP dominated by S and preceding a VP, while ‘object’ is a NP dominated by VP and preceded by a verb.

For example, in order to account for a passive verb form, as in sentence (30) it would be necessary to add further phrase structure rules (31). (30) This book was written by the old professor. (31a) VP → Vpass (PP) (31b) Vpass → aux pastpart where Vpass represents a passive verb form, consisting typically of an auxiliary (was) and a past participle (written). But by having apparently independent sets of rules, it is difficult to make explicit the special relationship between active sentences and their passive counterparts.

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