[ACT-R-users] what does negative decay mean?
Gunzelmann, Glenn F Civ USAF AFMC 711 HPW/RHAC
Glenn.Gunzelmann at wpafb.af.mil
Tue Jan 15 10:59:20 EST 2013
We have used higher values for the decay parameter to represent degraded
learning under conditions of fatigue:
http://actr.psy.cmu.edu/publications/pubinfo.php?id=914
-Glenn
-----Original Message-----
From: act-r-users-bounces at act-r.psy.cmu.edu
[mailto:act-r-users-bounces at act-r.psy.cmu.edu] On Behalf Of Cleotilde
Gonzalez
Sent: Tuesday, January 15, 2013 9:41 AM
To: Niels Taatgen
Cc: act-r-users at act-r.psy.cmu.edu
Subject: Re: [ACT-R-users] what does negative decay mean?
thanks a lot for the reference!
From: Niels Taatgen [mailto:n.a.taatgen at rug.nl]
Sent: Tuesday, January 15, 2013 9:26 AM
To: Cleotilde Gonzalez
Cc: act-r-users at act-r.psy.cmu.edu
Subject: Re: [ACT-R-users] what does negative decay mean?
Negative decay would be.... Incubation? Consolidation? It would mean the
activation would increase instead of decrease.
More realistically, I and others have experimented with values in the
0.2-0.3 range when dealing with models of multiday experiments. Jon Fincham
and John Anderson wrote a paper about it:
http://act-r.psy.cmu.edu/publications/pubinfo.php?id=133
On Jan 15, 2013, at 3:05 PM, Cleotilde Gonzalez <coty at cmu.edu> wrote:
ACT-R friends,
During explorations of the decay parameter in the ACT-R activation
equation, we have wondered if any body has ever used a negative value or
even zero, or even something different from the .5 default value. What
would a negative value of decay mean? just curiosity, I don't think we are
going to go that far :-)
Coty
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Niels Taatgen - Professor
University of Groningen, Artificial Intelligence
web: http://www.ai.rug.nl/~niels email: n.a.taatgen at rug.nl
Telephone: +31 50 3636435 Office: Bernouilliborg 322
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