Implements the Universal Background Model (UBM) training
Algorithms have at least one input and one output. All algorithm endpoints are organized in groups. Groups are used by the platform to indicate which inputs and outputs are synchronized together. The first group is automatically synchronized with the channel defined by the block in which the algorithm is deployed.
Parameters allow users to change the configuration of an algorithm when scheduling an experiment
The code for this algorithm in Python
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For a Gaussian Mixture Models (GMM), this algorithm implements the Universal Background Model (UBM) training described in the paper: Reynolds, Douglas A., Thomas F. Quatieri, and Robert B. Dunn. "Speaker verification using adapted Gaussian mixture models." Digital signal processing 10.1 (2000): 19-41.
First, this algorithm estimates the means, diagonal covariance matrix and the weights of each gaussian component using the KMeans clustering. After only the means are re-estimated using the Maximum Likelihood estimator.
This algorithm relies on the Bob library.
The following parameters are configurable: