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Multi-level sampling

Open yannikschaelte opened this issue 6 years ago • 3 comments

Allow to use surrogate models in non-final iterations, and only the full, expensive, model in the last iteration. This will make things more efficient. What to do? One way that would suffice would be to make the model simulation time-aware (pass t to .sample). There might also be some more handy alternatives.

yannikschaelte avatar Sep 26 '19 10:09 yannikschaelte

This reference may be of interest: "Multifidelity Approximate Bayesian Computation with Sequential Monte Carlo Parameter Sampling" https://arxiv.org/abs/2001.06256

ljschumacher avatar Aug 11 '20 11:08 ljschumacher

Hi @ljschumacher . Thanks, this is exactly one of the ways we had in mind :smile:. Are you interested in using such a method?

yannikschaelte avatar Aug 11 '20 11:08 yannikschaelte

Yes, I would be. We have a use case where a faster deterministic model may help speed up inference for the full stochastic one

On 11 Aug 2020, at 12:43, Yannik Schälte [email protected] wrote:

Hi @ljschumacher https://github.com/ljschumacher . Thanks, this is exactly one of the ways we had in mind 😄. Are you interested in using such a method?

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ljschumacher avatar Aug 12 '20 10:08 ljschumacher