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Elementsofai

Elementsofai.com is an online course about AI and this community is for the participants of the course to discuss.

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# Chapter 1
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# Chapter 2
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# Chapter 3
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# Chapter 4
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# Chapter 5
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# Chapter 6
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exercise 20

it is very demotivating to get an answer wrong when the picture is not clear and neither resembling the internet images; although the hint in the exercise makes you think the answer should be different, the image tells you otherwise when compared to those on the internet; or you…

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Happy or not

I did the optional exercise. My answer was 0 0 0 0 0 0 0 0 0 0 …

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% of correct answers are not updated

I have completed exercise 20 and scored 4/4 but my correct answers is at 59% as it was same before completing the exercise 20. And i have refreshed more than 5 times...but still it shows 59%

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I haven't recieved any reviews

I answered exercise 15, I don't have any reviews yet, and I think I was marked as spam. How long do I have to wait until I know what happened?

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Happy or not task in Chapter 5.

I have achived not only 6/8 for both happy and sad faces, but also 6/8 happy and 7/8 sad faces. Is the second one a better result, or we should just complete the task for 6/8 both? What do you think?

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Pixel faces

I am not sure if the final task in chapter 5 require you to get exactly 6/8 smiley and sad faces or if it is ok to do better in one. I got 7/8 and 6/8.

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Sigmoid Graph

Can Sigmoid Outputs be actually 0 or 1, as the graphic imply , or are they in the likes of Logarithmic graphs , which in this case of Sigmoid, the values of 0 or 1 are never achieved but the function can get infinitely "closer" to those values?

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Graphs

Am a bit confused with the output for the three different functions,I found that the sigmoid and the step function are giving zero identity output for -5 and -2.5? Am i write saying so?

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Recommended Revision of Exercise 20...

The cellular morphology of a neuron is a topic that is not strange to me, so I answered this diagram based on what I know. Although I believed to have my answers correct, they were graded differently. I'm writing this post to raise awareness of this issue. The answers are: D, B,…

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In Advanced neural network techniques we able to recognise which image is fake…

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