Each feature is generated by a mixture of Gaussian distributions, with the following likelihood given the estimated GMM mixture weights, means, and standard deviations : (20).
Observed bags of words can be generated by choosing mixture coefficients for topics followed by a generation of words according to: pick a topic from which to generate, then pick a word from that topic.
Specifically, this method assumes that data are generated by a mixture of probability distributions, either Poisson or Negative Binomial, and defines a likelihood function of the mixture models representing each gene.
A more structural view of how fluctuations around trend-growth are determined is to suppose that the data are generated by a mixture process.
We consider the training cepstral vectors (and the testing source vectors) to be generated by a mixture with component pdf as described in (1).
In addition, the granitoids generated by a mixture of mantle-derived and mature crust-derived components have high potential for skarn Fe (Cu) deposits.
Foam flooding using foam generated by a mixture of gas (nitrogen, natural gas or other gases) and foaming agents as an oil displacement medium (Pang 2010; Chen et al. 2010; Li et al. 2010).
HFS is a procedure whose underlying premise is that the data has been generated by a mixture model much like the specification of the Markov switching model presented above.
The reason for this is that the source cepstral vectors are assumed to be generated by the mixture pdf derived during training and the dimensionality of the training and particular source cepstral vectors should be the same.
If instead one focuses on the rates of growth in economic activity, so that the data can be reasonably thought of as being stationary, an alternative way to conceive of cyclical phenomena is to speculate that the data are generated by a mixture process whose alternating pattern is driven by a hidden-Markov process.
