2013-09-25

search and hyperparameters

In a last-minute clutch play on a low-research day, Foreman-Mackey showed me that our ability to detect exoplanet transits in the lightcurves of stochastically varying stars depends in a non-trivial way on the hyperparameters of the Gaussian Process we use to model the unocculted star. We are hoping we can tune to the most-sensitive-for-search hyperparameters before searching, and only switch back to being agnostic about the hyperparameters at the post-search characterization stage.

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