Monday, July 1, 2013

1306.6664 (Matthew J. Graham et al.)

Using conditional entropy to identify periodicity    [PDF]

Matthew J. Graham, Andrew J. Drake, S. G. Djorgovski, Ashish A Mahabal, Ciro Donalek
This paper presents a new period finding method based on conditional entropy that is both efficient and accurate. We demonstrate its applicability on simulated and real data. We find that it has comparable performance to other information-based techniques with simulated data but is superior with real data, both for finding periods and just identifying periodic behaviour. In particular, it is robust against common aliasing issues found with other period-finding algorithms.
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