Speech and Language Processing: An Introduction to Natural Language Processing, Computational Linguistics, and Speech RecognitionFor undergraduate or advanced undergraduate courses in Classical Natural Language Processing, Statistical Natural Language Processing, Speech Recognition, Computational Linguistics, and Human Language Processing.
An explosion of Web-based language techniques, merging of distinct fields, availability of phone-based dialogue systems, and much more make this an exciting time in speech and language processing. The first of its kind to thoroughly cover language technology - at all levels and with all modern technologies - this text takes an empirical approach to the subject, based on applying statistical and other machine-learning algorithms to large corporations. The authors cover areas that traditionally are taught in different courses, to describe a unified vision of speech and language processing. Emphasis is on practical applications and scientific evaluation. An accompanying Website contains teaching materials for instructors, with pointers to language processing resources on the Web. The Second Edition offers a significant amount of new and extended material.
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... function Logistic regression ln = = ply truex ) 1 - p ( y = true | x ) . = w⋅f ( 6.56 ) Now both the left and right hand lie between -∞ and ∞ . This function on the left ( the log of the odds ) is known as the logit function : logit ...
... function ( the function that gives logistic regression its name ) . The general form of the logistic func- tion is 1 1+ ex ( 6.65 ) The logistic function maps values from -∞ and ∞ to lie between 0 and 1. Again , we can express P ( y ...
... function Gaussian mixture model GMM Gaussian Normal distribution Mean Variance EM training of continuous input parameters to the next section , when we introduce Gaussians . 9.4.2 Gaussian PDFs Vector quantization has the advantages of ...
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Speech and Language Processing: An Introduction to Natural Language ... Daniel Jurafsky,James H. Martin No preview available - 2009 |