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By Hinrich Schütze

This quantity is worried with how ambiguity and ambiguity answer are realized, that's, with the purchase of different representations of ambiguous linguistic varieties and the data worthy for choosing between them in context. Schütze concentrates on how the purchase of ambiguity is feasible in precept and demonstrates that individual different types of algorithms and studying architectures (such as unsupervised clustering and neural networks) can be successful on the job. 3 different types of lexical ambiguity are handled: ambiguity in syntactic categorisation, semantic categorisation, and verbal subcategorisation. the amount offers 3 various types of ambiguity acquisition: Tag area, notice area, and Subcat Learner, and addresses the significance of ambiguity in linguistic illustration and its relevance for linguistic innateness.

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66 38282 + 19528 (number of correct assignments divided by total number of assignments). 35 Strictly speaking, van Rijsbergen defines the measure E, from which F can be derived as F = 1 — E. 42 / AMBIGUITY RESOLUTION IN LANGUAGE LEARNING (number of correct assignments to a ADN class divided by total number of tokens of tag ADN). 46 The evaluation procedure just described only evaluates accuracy, not discrimination. (In particular, if n clusters are created, where n is the number of tokens, then accuracy would be 100%.

Condition (2) is the heart of semantic bootstrapping: semantic properties are crucial in linking the internal symbol to the SYNTACTIC CATEGORIZATION / 21 outside world. Examples of salient semantic properties are reference to physical objects by nouns and reference to physical actions by verbs (1984:39). Condition (3) ensures that the symbol is actually used with one of its semantic properties in adult-to-child speech. , grammar-internal knowledge). It is unclear whether the first type of knowledge is necessary.

These examples demonstrate the importance of representing generalizations about left and right context separately. 3 Induction Based on Word Type Only The two context vectors of a word characterize the distribution of neighboring words to its left and right. The concatenation of left and right context vector can therefore serve as a representation of a word's distributional behavior (Finch and Chater, 1992; Schiitze, 1993). Concatenated vectors for all 47,025 words (surface forms) in the Brown corpus were formed.

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