[pdp-discuss] Turning off kwta in a leabra layer?

[Randall C. O'Reilly]

pat_q is just a threshold on the unit input value for computing what k should 
be -- in pseudocode:

if(unit->ext >= pat_q) pat_k++;

I don't have a script handy, but you just do something like this:

Layer* lay = network.layers.OutputLayerName; // insert your name here..
float trg_val = lay.units[0].targ;
float act_val = lay.units[0].act_m;
float err = trg_val - act_val;
float sq_err = err * err;

you can then stick the sq_err value (and/or err) in the stat vals of a 
ScriptStat -- you might find an example of this somewhere in the demos/leabra 
directory or in the projects from the textbook:

zcat projfile.proj.gz | grep ScriptStat

to find files with script stats.

- Randy

On Thursday 07 June 2007 13:43, Frank Leoné wrote:
> Thanks for the reply! Now I get the effect of the input inhibition settings
> and the way of calculating the error. I don't get what pat_q stands for
> though and I can't find a definition anywhere. Could you explain it to me?
>
> And do you have a script to calculate the error the right way? Would really
> be of great help if you had. Otherwise I'll just figure out how to do it
> myself.
>
> Thanks again,
>
> kind regards,
>
> Frank
>
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