Hi - I could not understand how the UNITS=3 in this for Layer 1. Given there is only one example of 2 features (200 Celcius, 17min)

How does one set UNITS count? What is the logic

Hi - I could not understand how the UNITS=3 in this for Layer 1. Given there is only one example of 2 features (200 Celcius, 17min)

How does one set UNITS count? What is the logic

What is the time mark for your question in the lecture?

Any update ?

Not yet, I do not have access to the lectures at the moment since Coursera updated their Terms of Use.

@Zerxes24, the “units” parameter refers to the number of units (nodes) in the layer. So, in this case, we’ve chosen to have 3 nodes in layer 1. This is represented by the 3 circles in the diagram for layer 1

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What is happening here is that first we are initialisation a single example that is x(200,17) which is then taken as input by 3 separate logistic regression units. The 3 units in the layer are 3 separate logistic regression models and they have their own weights and biases. I guess u got confused thinking that the number of inputs should be equal to the number of units in the next later.

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