Re: presenting training data multiple random times

["Randall C. O'Reilly" <oreilly@psych.colorado.edu>]

On Wednesday 09 June 2004 01:11 pm, Gert Westermann wrote:
> I'm a bit stuck with this problem: I have a set of e.g., 100 training
> items. I want to present each item for a random number of times (e.g.,
> between 1 and max_times), such that one item is randomly chosen and
> then presented for a random number of events (weight updates), then
> another item is chosen and presented for a random number of events and
> so on.
>
> Would this best be done with an Interactive Epoch, Interactive
> ScriptEnv, Sequence, or in an entirely different manner? I'm rather
> new to PDP++ so any help would be greatly appreciated.

A FreqEnv will do this if you present the events in the same order every time 
(ie. EpochProc order = SEQUENTIAL).  You could just call 
environment->events.Permute(); in a script to permute the order of events 
each epoch (put the above line in a ScriptProcess located in 
EpochProcess.final_procs).  Read about FreqEnv in the manual.  Cheers,

- Randy