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To an extremely sensible problem of finding the
maximum likelihood estimates in a specific mixture regression model
such as the Weibull-power-law type regression model, the EM algorithm,
as well as other optimization techniques, is applied to find the
solution. Although some combination of several optimization techniques
is found to be useful, the EM algorithm worked poorly.
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Newton-Raphson, simplex method, power-law,
Weibull distribution,
Weibull-power-law, EM algorithm
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