Only 2 outputs in NN

#1

I am trying my first Edge Impulse ML task. I’m looking to distinguish left and right. I have only generated about 40 samples/utterance of left and right. I’ve added noise and unknown as per the tutorial video. All seems fine until I get to the NN. It only shows two outputs. Am I doing something wrong? The data is very seriously unbalanced but that is not my concern now. I’m simply trying to learn the mechanics of using Edge Impulse.

#2

what do you mean it only shows 2 outputs?

#3

Hi @StAugustine,

Did you create the NN classifier when you had only 2 classes in your dataset by chance? If you added new classes later on, just remove/add the NN classifier again and it should work.

Aurelien

#4

he said “looking to distinguish left and right” so it seems to be a binary classifier to me. Or there is also the possibility of neither left nor right?

#5

There are also the noise and unknown classes in the dataset.

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#6

Hi Aurel:

Yes, I had created the NN classifier when I only had the left and right categories. I will do as you suggest and try it. Much thanks.

Bob

#7

Hi Edge7:
I had added the noise and unknown categories. I will revisit the NN definition by deleting and adding back as Aurelien suggested.
Bob

#8

Aurel, your suggestion was right on. Thanks.
Bob

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