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Questions tagged [gmm]

For questions about Gaussian mixture models (GMMs).

For questions about Gaussian mixture models (GMMs).

199 questions
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Speaker Recognition System using Python

I'm trying to make a Speaker recognition (not speech but speaker) system using Python. I've extracted mfcc features of both train audio file and test audio file and have made a gmm model for each. I'm not sure how to compare the models to compute a…
Tilak Sharma
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How can I sample the different components of a GMM distribution?

I have clustered my data (12000, 3) using sklearn Gaussian mixture model algorithm (GMM). I have 3 clusters. Each point of my data represents a molecular structure. I would like to know how could I sampled each cluster. I have tried with the…
Rachael
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Issue with using statsmodels.sandbox.regression.gmm.GMM

I wanna estimate interest rate process using gmm. So, I referenced a this code. https://github.com/josef-pkt/misc/blob/master/notebooks/ex_gmm_gamma.ipynb and following is my code. import numpy as np import pandas as pd from…
파워뿡뿡이
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GMM/EM on time series cluster

According to a paper, it is supposed to work. But as a learner of scikit-learn package.. I do not see how. All the sample codes cluster by ellipses or circles as here. I would really like to know how to cluster the following plot by different…
dia
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Gaussian Mixture Model gives negative value scores

I am trying to train multiple GMM model with different training words. Then I am trying to test my models with an unseen testing word, I am getting negative values. Any idea what I am doing wrong? from python_speech_features import mfcc from…
user42967
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Python for testing of wav files using UBM

While using scipy.stats.multivariate_normal how can I use a diagonal covariance matrix of dimension 128 * 39 using python. I am implementing UBM and need some information about testing of a sound wav file given I have adapted parameters.
varnika miglani
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How do you find the classification/category attribute that is fitted by GaussianMixture from SkLearn

I have a data with a series of gene expression. I am trying to locate the bimodal distribution and the classification of samples under one or the other fitted Gaussian Distribution. How would you find the classification attribute from the fitted…
Jeff The Liu
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Classification using GMM:how to use GMM for classification after doing the pca

Using Matlab, I have a one Healthy data and 7 Faulty data which are composed of 9 variables and after PCA on my healthy data I have got 3 PCs. Now when I'm projecting the faulty data on the PCs I get overlapping between healthy and faulty data. Now…
user624918
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multi dimensional fit with gaussian mixture model

I found out that it is possible to fit a gaussian mixture model to a 1-dimensional signal with sklearn (e.g. a histogram, see fist image) with sklearn.mixture.GaussianMixture (see here) I now would like to fit a gaussian mixture model in 2…
Oliver Wilken
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Gaussian mixture model sampling from specified cluster python

I have a piece of code given below that generates gaussian distribution and samples data from it: input = pd.read_csv("..\\data\\input.txt", sep=",", header=None).values gmm = GMM(n_components=5).fit(input) sampled = gmm.sample(input.shape[0],…
user3104352
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Anistropic points clustering

The K-means method cannot deal with anistropic points. The DBSCAN and Gaussian Mixture model seems that they can work with this according to scikit-learn. I have tried to use both approaches, but they are not working for my dataset. DBSCAN I used…
trumee
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Why is Log Likelihood strangely when using MFCC and Delta Coefficients

I am working on a project that requires extracting MFCC features from an audio stream. The project consists primarily of classification, although in the interest of expanding our dataset I am working on a detection algorithm to isolate the parts of…
Jason Housman
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Multiclass classification using Gaussian Mixture Models with scikit learn

I am trying to use sklearn.mixture.GaussianMixture for classification of pixels in an hyper-spectral image. There are 15 classes (1-15). I tried using the method http://scikit-learn.org/stable/auto_examples/mixture/plot_gmm_covariances.html. In here…
Nikhil Makkar
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Building GMM using SIDEKIT 1.2

I have a 2 dimensional data in the form of a text file. I have to build a GMM based on this data using Sidekit 1.2. Which function should I use to estimate the parameters of the Gaussian model (Mean, covariance matrix, weighted average etc.) Can you…
KD97
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Fail to fill matrix with results

I would like to estimate the parameter 'r' using GMM, based on a rolling data set [1:2567],[2:2568]... and so on. Finally, the results are to be filled in a matrix. I had already tested the core codes as follows, which yield valid answers. …
LINDA HWUNG
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