Authors: Christian Röver, Chris Messenger, Reinhard Prix
Date: 15 Mar 2011
Abstract: While gravitational waves have not yet been measured directly, data analysis from detection experiments commonly includes an upper limit statement. Such upper limits may be derived via a frequentist or Bayesian approach; the theoretical implications are very different, and on the technical side, one notable difference is that one case requires maximization of the likelihood function over parameter space, while the other requires integration. Using a simple example (detection of a sinusoidal signal in white Gaussian noise), we investigate the differences in performance and interpretation, and the effect of the "trials factor", or "look-elsewhere effect".
© M. Vallisneri 2012 — last modified on 2010/01/29
Tantum in modicis, quantum in maximis