The alpha-EM algorithm: surrogate likelihood maximization using alpha-logarithmic information measures

  title={The alpha-EM algorithm: surrogate likelihood maximization using alpha-logarithmic information measures},
  author={Yasuo Matsuyama},
  journal={IEEE Trans. Information Theory},
A new likelihood maximization algorithm called the -EM algorithm ( -Expectation–Maximization algorithm) is presented. This algorithm outperforms the traditional or logarithmic EM algorithm in terms of convergence speed for an appropriate range of the design parameter . The log-EM algorithm is a special case corresponding to = 1. The main idea behind the -EM algorithm is to search for an effective surrogate function or a minorizer for the maximization of the observed data’s likelihood ratio. The… CONTINUE READING
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