tensorflow / tensorflow/probability

Functionality for composite distributions

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Description

I am trying to write up a TensorFlow distribution for the composite lognormal-Pareto model introduced here: https://www.tandfonline.com/doi/abs/10.1080/03461230601110447?journalCode=sact20

Is there a general recipe for writing up new distributions? In particular, I'm having trouble writing the sample() method.

Any help/advice will be appreciated!

Edit: There's a public R package for such distributions as documented here.

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
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Research direction

Start by reviewing the composite lognormal-Pareto model in the linked paper and the referenced R package, then inspect the project's existing distribution implementations and their sample() methods. Done means the requested distribution approach is defined clearly enough to implement, with a documented recipe or a working distribution contribution.

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Assessment

Domain
machine-learning
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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