244 citations · 1.5k across the 146 of their papers we have counts for
Showing 2015 · astro-ph.COShow all
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astro-ph.CO2015★ 244 cited
Parameter inference with estimated covariance matrices
Elena Sellentin, Alan F. Heavens
When inferring parameters from a Gaussian-distributed data set by computing a likelihood, a covariance matrix is needed that describes the data errors and their correlations. If th…
astro-ph.CO2015★ 31 cited
A fast, always positive definite and normalizable approximation of non-Gaussian likelihoods
Elena Sellentin
In this paper we extent the previously published DALI-approximation for likelihoods to cases in which the parameter dependency is in the covariance matrix. The approximation recove…
astro-ph.CO2015★ 10 cited
Non-Gaussian forecasts of weak lensing with and without priors
Elena Sellentin, Björn Malte Schäfer
Assuming a Euclid-like weak lensing data set, we compare different methods of dealing with its inherent parameter degeneracies. Including priors into a data analysis can mask the i…