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Fast Fisher Matrices and Lazy Likelihoods (1007.4820v3)
Published 27 Jul 2010 in gr-qc and astro-ph.HE
Abstract: Theoretical studies in gravitational wave astronomy often require the calculation of Fisher Information Matrices and Likelihood functions, which in a direct approach entail the costly step of computing gravitational waveforms. Here I describe an alternative technique that sidesteps the need to compute full waveforms, resulting in significant computational savings. I describe how related techniques can be used to speed up Bayesian inference applied to real gravitational wave data.