[astro] Re: bug in likelihood estimation

[Travis Desell]

The application we've compiled and made available on BOINC ourselves.

Malik Magdon-Ismail wrote:
> Hi,
>
> What is a stock application?
>
> -Malik
>
> -------------------------------------------------------------------------- 
>
> Have Faith in Probability
>
> Malik Magdon-Ismail
> Associate Professor of Computer Science
> Rensselaer Polytechnic Institute (RPI)
>
>  Office: Rm 312 Lally           mail:   Rm 207, Lally Building,
>  email:  magdon at cs.rpi.edu              CS Department, RPI,
>  tel:    518-276-4857                   110 8th Street,
>  fax:    518-276-4033                   Troy, NY 12180-3590.
>  web:    http://www.cs.rpi.edu/~magdon
>  key:    http://www.cs.rpi.edu/~magdon/MalikMagdon-Ismail.PublicKey.asc
> -------------------------------------------------------------------------- 
>
>
> On Tue, 20 Jan 2009, Travis Desell wrote:
>
>> I've been analyzing the data coming in from our stock applications 
>> and it looks like there's some kind of bug in the likelihood 
>> calculation.  Here are plots of points along the direction generated 
>> by the hessian for stripes 79, 82 and 86:
>>
>> files with _darwin are points only from os/x clients,  _linux is 
>> linux clients, and _stock is linux/windows/os x.  As you can see 
>> they're all having the same issue. It almost seems like two distinct 
>> lines are being made.
>>
>> Does anyone have any idea what might be causing this?  Again, these 
>> are points only coming from our stock application, so it's not a 
>> matter of a bad application being out there.  I have a feeling this 
>> is what's throwing off the hessian calculation.
>>
>> -- 
>> ---------------------------------------------------------------------------------------------------------- 
>>
>> Travis Desell
>> <deselt @ cs.rpi.edu>
>> 1-518-878-7424
>> Worldwide Computing Laboratory ( http://wcl.cs.rpi.edu/ )
>> MilkyWay at Home ( http://milkyway.cs.rpi.edu/ )
>> Rensselaer Polytechnic Institute, 110 8th Street, Troy NY 12180, USA
>> ---------------------------------------------------------------------------------------------------------- 
>>
>
>

-- 
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Travis Desell
<deselt @ cs.rpi.edu>
1-518-878-7424
Worldwide Computing Laboratory ( http://wcl.cs.rpi.edu/ )
MilkyWay at Home ( http://milkyway.cs.rpi.edu/ )
Rensselaer Polytechnic Institute, 110 8th Street, Troy NY 12180, USA
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