mj-will/nessai: v0.4.0

Summary

This release adds a new mode for computing the latent likelihood contour updates various default values to use the new mode (including some defaults for GWFlowProposal). It also includes a few general improvements and minor features.

Constant volume mode is an option in FlowProposal that fixes the volume of the latent contour based on the number of dimensions in the latent space and the value of volume_fraction. This is the same as fixing the radius of the latent contour.

This significantly improves results for problems where the posterior distribution "rails" against the prior bound and makes results less sensitive to the configuration of the normalising flow. This combined with updated default values means that nessai is more consistent out-of-the-box with no configuration.

Bilby

Constant volume mode is not supported in the current release of bilby . A PR with an update to the interface for nessai is in-progress and should be available in the next release of bilby.

• Add constant volume mode by @mj-will in https://github.com/mj-will/nessai/pull/125
• Update defaults by @mj-will in https://github.com/mj-will/nessai/pull/126
• Errors for 1d models by @mj-will in https://github.com/mj-will/nessai/pull/121
• Add periodic reparameterisation by @mj-will in https://github.com/mj-will/nessai/pull/127
• Propagate logger by @mj-will in https://github.com/mj-will/nessai/pull/128
• Use GW reparameterisations by default by @mj-will in https://github.com/mj-will/nessai/pull/129
• Update GW defaults by @mj-will in https://github.com/mj-will/nessai/pull/130

Full Changelog: https://github.com/mj-will/nessai/compare/v0.3.3...v0.4.0