structured mass matrices
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- Dominant language
- C++
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Description
It'd be nice to have structured mass matrices so that we could have a mass matrix where there are structured zeros. The use case is when we think there are correlations in the posterior among some of the parameters that should go into the mass matrix. The particular use case motivating this is a model with a dozen or so parameters and then a whole lot of item-level parameters (what some people might call "random effects" if they wanted to annoy Andrew).
- linear algebra for structured mass matrices
- command-line options to specify structure
- integration with samplers
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by scoping the three areas listed in the issue: linear algebra for structured mass matrices, command-line options for specifying structure, and sampler integration. Define the supported structure and how completion will be validated across all three areas; the issue provides no files or tests to run.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- machine-learning
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 15/100