Mixture models form an important class of models for unsupervised learning, allowing data points to be assigned labels based on their values. However, standard mixture models procedures do not deal well with rare components. For example, pause times in student essays have di↵erent lengths depend-ing on what cognitive processes a student engages in during the pause. However, in-stances of student planning (and hence very long pauses) are rare, and thus it is dif-ficult to estimate those parameters from a single student’s essays. A hierarchical mix-ture model eliminates some of those prob-lems, by pooling data across several of the higher level units (in the example students) to estimate parameters of the mixture com-ponents. One way to estim...
Hierarchical linear and generalized linear models can be fit using Gibbs samplers and Metropolis alg...
Sequence analysis is being more and more widely used for the analysis of social sequences and other ...
<div><p>Mixtures of linear mixed models (MLMMs) are useful for clustering grouped data and can be es...
Abstract There are many hierarchical clustering algorithms available, but theselack a firm statistic...
Longitudinal and repeated measurement data commonly arise in many scientific researchareas. Traditio...
Abstract: We address the problem of model comparison and model mixing in time series using the appro...
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Comp...
Mixture-of-experts models, or mixture models, are a divide-and-conquer learning method derived from ...
In the big data era, data are typically collected at massive scales and often carry complex structur...
come an important Bayesian nonparametric model for grouped data, such as document collections. The H...
In simulation modeling and analysis, there are two situations where there is uncertainty about the n...
In a society which produces and consumes an ever increasing amount of information, methods which can...
Within the field of data clustering, methods are commonly referred to as either 'distance-based' or ...
When working with model-based classifications, finite mixture models are utilized to describe the di...
Mixture models have been around for over 150 years, and they are found in many branches of statistic...
Hierarchical linear and generalized linear models can be fit using Gibbs samplers and Metropolis alg...
Sequence analysis is being more and more widely used for the analysis of social sequences and other ...
<div><p>Mixtures of linear mixed models (MLMMs) are useful for clustering grouped data and can be es...
Abstract There are many hierarchical clustering algorithms available, but theselack a firm statistic...
Longitudinal and repeated measurement data commonly arise in many scientific researchareas. Traditio...
Abstract: We address the problem of model comparison and model mixing in time series using the appro...
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Comp...
Mixture-of-experts models, or mixture models, are a divide-and-conquer learning method derived from ...
In the big data era, data are typically collected at massive scales and often carry complex structur...
come an important Bayesian nonparametric model for grouped data, such as document collections. The H...
In simulation modeling and analysis, there are two situations where there is uncertainty about the n...
In a society which produces and consumes an ever increasing amount of information, methods which can...
Within the field of data clustering, methods are commonly referred to as either 'distance-based' or ...
When working with model-based classifications, finite mixture models are utilized to describe the di...
Mixture models have been around for over 150 years, and they are found in many branches of statistic...
Hierarchical linear and generalized linear models can be fit using Gibbs samplers and Metropolis alg...
Sequence analysis is being more and more widely used for the analysis of social sequences and other ...
<div><p>Mixtures of linear mixed models (MLMMs) are useful for clustering grouped data and can be es...