Speech Perception by Unknown

Author:Unknown
Language: eng
Format: epub
ISBN: 9783030815424
Publisher: Springer International Publishing

Because entropy is a sum over weighted surprisal values, it is also measured in bits. It will assume the highest value when there are a large number of possible outcomes X each of which has equal probability, and the lowest value when one outcome is much more probable than its competitors. For the example word “trombone” as shown in Fig. 5.3a, entropy is highest at the first phoneme because there are many possible lexical items that begin with /t/ at onset. However, at the final /m/, entropy reaches zero because that is the phoneme that uniquely identifies that lexical item from all others – “trombone” (and its morphological family) is the only word with those first four phonemes.

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