“finite mixture model”的概念、定义、翻译、参考文献-科学参考

finite mixture model

Statistics

In a finite mixture model the distribution of the random variable X has a known form (e.g. normal distribution), but the values of the parameters of the distribution are not known. Instead, it is known that the vector of the parameters takes one of the values θ₁, θ₂,⋯, θ_m with associated probabilities w₁, w₂,⋯, w_m. If, for a continuous random variable, the probability density function of the kth of the possible distributions is denoted by f(x, θ_k), then the finite mixture distribution of X is given by $finite mixture model$ An equivalent result holds for a discrete random variable.

单词	finite mixture model
释义	finite mixture model Statistics In a finite mixture model the distribution of the random variable X has a known form (e.g. normal distribution), but the values of the parameters of the distribution are not known. Instead, it is known that the vector of the parameters takes one of the values θ₁, θ₂,⋯, θ_m with associated probabilities w₁, w₂,⋯, w_m. If, for a continuous random variable, the probability density function of the kth of the possible distributions is denoted by f(x, θ_k), then the finite mixture distribution of X is given by $finite mixture model$ An equivalent result holds for a discrete random variable.
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