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Fast MLE Computation for the Dirichlet Multinomial
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Given a collection of categorical data, we want to find the parameters of a Dirichlet distribution which maximizes the likelihood of that data. Newton's method is typically used for this purpose but current implementations require reading through the entire dataset on each iteration. In this paper, we propose a modification which requires only a single pass through the dataset and substantially decreases running time. Furthermore we analyze both theoretically and empirically the performance of the proposed algorithm, and provide an open source implementation.
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High dimensional statistical inference: theoretical development to data analytics
This chapter surveys asymptotic, projection-based, and discrete-model approaches for high-dimensional mean testing, covariance inference, and count data analysis.
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