[PDP-discuss] Using input layer for both input and target?

[Randall C. O'Reilly]

Yep, this should be possible -- I played around with it a while ago.  Set the 
phase_order to either:

    MINUS_PLUS_NOTHING,		// auto-encoder version with final 'nothing' minus 
phase
    PLUS_NOTHING,		// just the auto-encoder (no initial minus phase)

I haven't tested it recently so I can't guarantee it clears out the external 
inputs in the NOTHING phase properly, but it did at one point..

- Randy

On Monday 05 February 2007 04:26, Frank Leoné wrote:
> Dear all,
>
> If I understand the recirculation algorithm, which is encapsulated in
> Leabra, correctly it should be possible to use in the input layer as target
> layer. Is this correct? And can this also be done using PDP++ and Leabra?
>
> To clarify it a bit: I want to be able to use only an input and hidden
> layer, reciprocical connected. At timestep 0, the input is fet in. At all
> other timesteps no input is given, though the network should remember the
> old input in the activations of the hidden and send it back to the
> inputlayer. So after the first timestep, I want to only present the old
> input as target to the input layer.
>
> Thanks in advance!
>
> with kind regards,
>
> Frank
>
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