[pdp-discuss] Leabra: learning continous values over time?

[Randall C. O'Reilly]

Frank -- did you try setting the value to something very far above or below 
the min/max values??  that should make the gaussian bubble somewhere else and 
leave only the tail in the active units, i.e., mostly off.  if that doesn't 
work it is only because of a range check in the code, which I'm sure you 
could quickly locate & disable by searching in the scalarvallayerspec code in 
leabra.cc for expressions involving that max or min value..

- Randy

On Thursday 01 March 2007 05:23, Frank Leoné wrote:
> Hello all,
>
> Everything is working quite well and I am learning all the time, but still
> the 'problem' of  temporary switching off scalValar layers remains. More
> exactly: I want to be able to turn off the scalValar layers for all
> timesteps except the first.
>
> I tried two things uptill now: I tried to lesion the layer, depending on
> the timestep, using:
>
> if(.processes[8].tick.val==1).networks[0].layers[0].lesion=false; else
> ..networks[0].layers[0].lesion=true;
>
> In a loop-process in the sequence process.
>
> The second way I tried is to set the input to inactive, again depending on
> the timestep:
>
> if(.processes[8].tick.val==1).environments[0].event_specs[0].patterns[1].ty
>pe=1; else .environments[0].event_specs[0].patterns[0].type=0;
>
> and also in a loop-process in the sequence process.
>
> The scripts do work, but the don't solve my problem. The first seems to
> keep sending the last seen signal, the second probably needs an 'update all
> events' action.
>
> And I do need the option, so I'm happy to hear you are planning to put it
> in the new version. Until then, is it possible to fix it using scripts(or
> an other way, except clamping the complete pattern)? I hope someone can
> help me, thanks a lot in advance!
>
> kind regards,
>
> Frank
>
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