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Questions tagged [infinite-mixture-model]

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2
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1answer
75 views

Clarifying Dirichlet Process Mixture Probability Terms

Suppose I have a Dirichlet Process Mixture model defined as follows: $\alpha \sim G(a,b)\\ \pi|\alpha \sim \text{Dir}(\alpha)\\ z|\pi \sim \text{Cat}(\pi)\\ $ where $G$ is just a standard Gamma ...
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0answers
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Any connections between mixed model and mixture of experts model?

Given data $<y_i, X_i>$ for $i \in \{1, 2, 3, \dots n\}$ ($n$ samples), and we are interested in knowning the relationship between $y$ and $X$. In the simplest manner, we can solve for $\beta$ ...
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0answers
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Estimation of arbitrary density on the real line with infinte Gaussian mixtures

In his Introduction to this paper, Ferguson says that we can model an arbitrary density f(x) on the real line as the mixture of a countable number of normal distributions in the form: $f(x) = \sum_1^{...
2
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1answer
208 views

Check on intuition behind infinite mixture models for clustering

I'm trying to better understand the intuition and practical application of infinite mixture models (Dirichlet Process) and finite mixture models. For example, say I have a data set on which I run a ...