Flow matching for atmospheric retrieval of exoplanets: Where reliability meets adaptive noise levels

Open Access

Table 1

Estimate of the Bayesian log-evidence (log Z), the ESS, and the sampling efficiency (ε) on the benchmark spectrum (with and without noise) for the different methods.

(a) Without noise

Method	log Z	ESS	ε
FMPE-IS	401.843 ± 0.002	199 761.8	19.1%
NPE-IS	401.832 ± 0.003	121 856.5	11.6%
`MultiNest`	407.182 ± 0.080	30 540	_–
`nautilus`	401.844 ± 0.010	10 004.4	3.1%

(b) With noise

Method	log Z	ESS	ε

FMPE-IS	198.798 ± 0.003	111 010.8	10.6%
NPE-IS	198.792 ± 0.004	52 724.3	5.0%
`MultiNest`	203.235 ± 0.083	32 311	—
`nautilus`	198.737 ± 0.010	10 002.9	3.2%

Notes. MultiNest does not return a value for ε. Therefore, we simply report the default number of equal-weighted posterior samples as its ESS. The evidence here is the one without IS; with IS, the log Z estimates are slightly closer to the other methods.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.