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This is the branch where the Haskell Venture backend lives. While it is very far from feature-complete with respect to Lite or Puma, I think it's appropriate to stop hiding it on a branch. Among oth…
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## Please follow the guide below
- You will be asked some questions and requested to provide some information, please read them **carefully** and answer honestly
- Put an `x` into all the boxes [ ] re…
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Hello,
I have a model here that works fine with Hamiltonian Monte Carlo (when using guess_scaling or find_hessian) and Metropolis Hastings. When I attempt to run it with the No-U-Turn Sampler, or HMC …
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I have been experimenting with pymc3 and am pretty sure the current version of the NUTS sampler is broken. I am using the simple example problem in the docs, but with one of the priors changed (for si…
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**Issue**
- The accept/reject is fine for SHO but looks too low for QHO
- ∆H is far too high.
| Av. acceptance rate : `~87%` | Av. acceptance rate : `~58%` |
| :-: | :-: |
| Measured av. change in `e…
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I talked to Bob about comparing the ensemble samplers that are in https://github.com/stan-dev/stan/tree/feature/issue-362-ensemble-samplers to HMC but we're not sure what models to use for comparison.…
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Following the ideas in [Nonstandard Interpretations of Probabilistic Programs for Efficient Inference](http://www.stanford.edu/~ngoodman/papers/WGSS-NIPS11.pdf) we can implement Hamiltonian Monte Carl…
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Just collecting some initial brainstorming ideas on validation in advance of Monday's meeting:
## Validating the overall `MultiTargetDesign` sampler
### Comparing alchemical hydration free energies wi…
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#### Summary:
Systemic bug in Stan inference engine
#### Description:
As demonstrated in [C-K Hur, A. V. Nori, S. K. Rajamani, and S. Samuel, "A Provably Correct Sampler for Probabilistic Programs"]…
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I would like to put forward a proposal for participating in [Google Summer of Code 2015](https://www.google-melange.com/gsoc/homepage/google/gsoc2015) as a student under the possible mentorship of @ac…