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  • Hidden markov models pdf

    Hidden markov models pdf
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    Model likelihood of a sequence of observations as a series of state transitions. FIGURE A left-to-right HMM commonly used in speech recognition. An HMM pretends HMMs. For instance, R t-1) +r +r +r -r r +r Royal Holloway Research Portal The Gaussian (or Normal) distribution is the most common (and easily analysed) continuous distribution It is also a reasonable model in many situations (the famous \bell curve) If a (scalar) variable has a Gaussian distribution, then it has a probability density function with this form: p(x j ; 2) = N (x; ; 2) = p An HMM is a \generative model, meaning that it models the joint probability p(Q;X) using a model of the way in which those data might have been generated.
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