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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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How can I color-label the cluster data after GMM is fitted?

I am trying to do some labelling on cluster data following GMMs but haven't found a way to do it. Let me explain: I have some x,y data pairs into a X=30000x2 array. In reality the array contains the data from different sources (known) and each…
Nik_ol
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How to use Gaussian Mixture Model for clustering?

I have been using k-Means for clustering a data into 2 classes. However, now, I would like to use a different approach and use Gaussian Mixture Model for Clustering the data into 2 classes. I have gone through Scikit-Learn documentation, and other…
JChat
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Including time dependency in gaussian mixture model/expectation–maximization model?

I'm working on a time series dataset and therefore while fitting the GaussianMixture() function from the scikit-learn package, I need to make each feature(timestamp) dependent. However, I don't find a parameter to customize the covariance matrix…
Cocoa Wang
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Plot the estimated Gaussian components from GMM on histogram

I have some 1-D data that is retrieved from two normal distributions. My goal is to estimate the two different gaussian components. plt.hist(my_data, bins=100, edgecolor= 'white' normed=False) I use a GMM (Gaussian Mixture model). clf =…
Anab
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Grayscale image segmentation using GMM

I am looking for functions to perform segmentation of noisy medical images (grayscale) with GMM (Gaussian Mixture Models). I have found in MATLAB: gm = gmdistribution(mu,sigma) idx = cluster(gm,X) given X, my grayscale image. How would you define…
SheppLogan
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Sidekit. What is feature_list in sidekit.EM_split()?

I am new to using sidekit for speaker recognition, I encountered a problem where I need to use "feature_list".feature_list=ubm_list but what's in feature list?It says it contains list of feature files to train a GMM with. But what is suppose to be…
Tolu
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Gaussian Mixture Countour Plots for 3-D data

How to plot Gaussian Mixture contour fits for 3 dimensional data? I cannot figure out how to transform Z. Obtain a projection of the fitted mixture of normal distributions on each plane, i.e. x-y, x-z, and y-z. This is the exact question which i…
Nihar Dharia
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Tensorflow MixtureSameFamily and gaussian mixture model

I am really new to Tensorflow as well as gaussian mixture model. I have recently used tensorflow.contrib.distribution.MixtureSameFamily class for predicting probability density function which is derived from gaussian mixture of 4 components. When I…
Clara Rhyu
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Efficient Gaussian mixture evaluation

I'd like to (efficiently) evaluate a Gaussian mixture model (GMM) over an (n,d) list of datapoints, given the GMM parameters ($\pi_k, \mu_k, \Sigma_k$). I can't find a way to do this using standard sklearn or scipy packages. EDIT: assume there is n…
stevemo
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Error: System is computationally singular -> Using pgmm for System GMM regression

by short: I'm trying to do a GMM Estimation by using the "pgmm" package in R. Reason for that is to research the impact of Corruption on Public debt. When I'm trying to regress the whole thing, I get "system is computationally singular" as an…
O'Neil Murray
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scikit-learn deprecated GMM.eval() replacement

The eval() method under sklearn.mixture.GMM from the scikit-learn version 0.11 is deprecated. Is there a similar method or a workaround in the newest version 0.19.2 ?
SuperKogito
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number of instruments GMM estimator in R

I have one question, maybe very simple. In Stata in dynamic panel data model (GMM estimator) you recieve a "number of instruments". In turn, in R you recieve AR test, sargan test but the "number of instruments" is nor displayed. How to obtain number…
lucas79
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gmm estimation error

In estimating GMM with more than one independent variables, The codes are do_gmm <- function(X) { DE <- X[, "DE"] rmrf_local <- X[, "rmrf_local"] SMB_L <- X[,"SMB_L"] h <- cbind(as.numeric(DE,rmrf_local,SMB_L)) …
Enrico Dace
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How to submit MFCCs to the input algorithm?

I want to train the GMM with the help of MFCC. I have 588 audio files (wav, if it's important). After extracting the features, I get a set of 588 two-dimensional arrays (13x?). Each file has a different number of columns. And how to submit MFCCs to…
reednessfox
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use GMM and EM algorithm for image segmentation java

I tried to find some good definition that will give me an idea about how can I implement the EM algorithm for image segmentation but I found nothing, I have also searched in other programming language as python, matlab, ... but all exemple I find…
Walid Bousseta
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