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gmm

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philastrophist
philastrophist commented Jan 14, 2019

In performing some tests of pygmmis I have found that varying the cutoff argument drastically changes the end result of fitting even with split-and-merge turned on (and exhaustive).

My understanding of EM is that the responsibilities r_ik are calculated for all data and all components. Why then, does pygmmis use a cutoff to fit only to those data in the neighbourhood of each component? A

Lyrics-to-audio-alignement system. Based on Machine Learning Algorithms: Hidden Markov Models with Viterbi forced alignment. The alignment is explicitly aware of durations of musical notes. The phonetic model are classified with MLP Deep Neural Network.

  • Updated Mar 9, 2020
  • Python

Feature reduction projections and classifier models are learned by training dataset and applied to classify testing dataset. A few approaches of feature reduction have been compared in this paper: principle component analysis (PCA), linear discriminant analysis (LDA) and their kernel methods (KPCA,KLDA). Correspondingly, a few approaches of classification algorithm are implemented: Support Vector Machine (SVM), Gaussian Quadratic Maximum Likelihood and K-nearest neighbors (KNN) and Gaussian Mixture Model(GMM).

  • Updated Jun 20, 2018
  • MATLAB

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