Or you could just load'pacman' and replace httpget by httpget_jpacman_ .
Jan-Pieter
On Sun, 5 Jun 2022, 05:57 Raul Miller, <rauldmil...@gmail.com> wrote:
> To run this script under jqt, add to the top:
>
> {{
> if.0>nc<'httpget' do.
> require'web/gethttp'
> httpget=:{{
> (gethttp y) fwrite '~temp',(}.~ i:&'/')y
> }}
> EMPTY
> end.
> }}_
>
> --
> Raul
>
> On Sat, Jun 4, 2022 at 4:42 PM Jan-Pieter Jacobs
> <janpieter.jac...@gmail.com> wrote:
> >
> > I had some fun putting J Playground through its paces and wrote the
> > following neural network demo:
> >
> >
> https://jsoftware.github.io/j-playground/bin/html2#url=https://gist.githubusercontent.com/jpjacobs/6ff68c07bf764ad886e097ffbd19f5f0/raw/52b0563a7daa76df7fa57a3743da45ca0755f1a7/nn.ijs
> >
> > It dowloads the CSV and DSV packages and the Spirals dataset, normalises
> > the data and applies some random jitter.
> > The neural network can be given any number of layers of any size (of
> > course, respecting the input layer to be of size 2 and the output layer
> of
> > size 3,as there are 2 input dimensions and 3 labels, one-hot encoded),
> e.g.
> > net=: nn 2 15 8 3
> > It is trained with stochastic gradient descent and backpropagation with
> > quadratic loss, using e.g. 5000 100 0.1 sgd__net spl =: splitdata data ,.
> > labels
> > When finished, it outputs some stats and some nice pictures of the data
> and
> > classification borders, using report__net spl.
> >
> > I was **very** impressed to see it run (entire script with 5000 training
> > epochs, and visualisation) without going out of memory in under 35 secs
> on
> > my mid-range phone… just wow.
> >
> > Some things I noted with respect to the playground:
> > - I had to patch the enclength_jzlib_ verb to allow bigger viewmat
> pictures
> > (see at the bottom of the script).
> > - It's a pity the text output is blocked until all calculations are done,
> > as this renders it impossible to give status updates. Is there a trick
> like
> > in JQt (wd 'msgs') to overcome this?
> > - Maybe related: plots and text output do not keep their relative output
> > positions, which I think would be desirable when trying to make a
> coherent
> > example.
> > - The plot quality is not great yet, while I saw j901 on iPadOS seems to
> > get vector graphics from plot. As the Playground would be the showcase of
> > J, it would be great if it could also include crisp graphics.
> > - Lastly, I noted some strange scrolling glitches after running the
> script
> > in chrome on Windows (didn't try elsewhere): when scrolling up the
> terminal
> > output would jump back down from time to time.
> >
> > Any suggestions for improvement are of course welcome, though I kept the
> > features minimal to avoid making it too lengthy. To my taste, the report
> > function is for instance a bit too wordy, but necessary to show some
> > interesting graphs. If one were really ambitious, it could be turned into
> > something like: http://playground.tensorflow.org/ ( open source, by the
> > way).
> >
> > I hope you have fun tinkering with the neural network!
> > Best regards
> > Jan-Pieter
> > ----------------------------------------------------------------------
> > For information about J forums see http://www.jsoftware.com/forums.htm
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>
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