Hi All; I have completed the Quiz wsg72 format on my Profile and push the SUBMIT bottom: it is already ok so, or I have to send quiz page to some address? Many thanks! Best.

Gianluca Argentini - Italy

Hi,

I have a probably convolution or correlation layer type question.

Imagine a bay window with 3 panes. In front of these window panes from a good distance are lamps positioned that the emitted light is perpendicular to the particular window pane. These light rays are converging on the back wall of the room in a small area. The question is, if someone makes an image of the light on the wall can a neural network separate where portions of the lights were coming from? Lamps are the same and they are from the same distance from their particular window pane.

My guess is is that somehow the different directions - 45, 90, 135 degrees - has to be picked out, but how?

my chat is disabled, so I cannot interact in the class. Can you fix it, please?

Yet in the webinar it appears that students are interacting with the lecturer. This perhaps means that the webinar is recorded and not live?

I am having a little trouble with the Machine Learning Basics notebook with regards to the option def for the ColorFunction - when I run the code the output is all red - when I change the option to one of the builtin options such as "AuroraColors" the output looks good - I am wondering about where or how the def was defined. I think I am missing something simple. Thanks

That's happened to me too :). The definition for dcf is indeed hidden in a closed cell somewhere in that notebook. Here's the definition itself:

dcf = Blend[System`PlotThemeDump`$ThemeDefaultMatrix, #1] &

This is grabbing one of the default color schemes—the one used for MatrixPlot, for example—and making it available for your use. (It's also converting it from a scheme with discrete colors into a continuous one.)

Happy to hear it!!

Hi Gerald! Sorry for the late reply; something seems funky with my notification settings for this thread.

Like NetBlockPlot3D, this is a custom resource that either Stephen or the blog team created for one of his blogs, so there's no real documentation that you can grab. However: I've added a notebook to the downloads folder where I pull out the colors/color functions used in the notebook that should be instructive!

I'll also include it here.

Hi Jon! Totally fair to ask questions beyond the scope of the course—especially if you kindly indicate that you're aware that you're doing that ;).

My understanding is that (currently!) CoreML can be used when running a neural net (or using a built-in function that uses neural nets "transparently" to the end user), but it can't be used when training a neural net.

I can't say that I'm aware of MLX, but a quick look through some internal information seems to indicate that it is in use in at least some places!

Looking forward to this Study Group next week! We have a great group signed up, but seats are still available. Sign up here.