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Re: combinations of pid algorithms [message #13490 is a reply to message #13489] Wed, 16 May 2012 15:36 Go to previous messageGo to previous message
StefanoSpataro is currently offline  StefanoSpataro
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Registered: June 2005
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From: *to.infn.it
Dmitry Khaneft wrote on Wed, 16 May 2012 15:31


the first case gives me less events compare to the second one. It seems very strange for me. I would expect that by adding new algorithms I should be getting less rather then more events.



Why? If you multiply your initial pdf with another pdf, you will obtain a different probability distribution. I cannot see a direct correlation of drop in efficiency with increasing number of algorithms.

 
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