miloharper / simple-neural-network Goto Github PK

Hi
Thank you for sharing this code.

A note: For this to work in Python3 users need to

1. replace the print with print('the text or value in the code)
2. replace xrange with range
   https://stackoverflow.com/questions/15014310/why-is-there-no-xrange-function-in-python3

Viktor

I do not quite understand is that we are not getting enough correct answers to call it much of an accomplishment . . . Take this last line in the code:

output = neural_network.think(np.array([1, 0, 0]))

This is the resulting output for each corresponding input :
Input Output
0 [0, 0, 0] --> [ 0.5]
1 [1, 0, 0] --> [ 0.99993704]
2 [0, 1, 0] --> [ 0.44822538]
3 [1, 1, 0] --> [ 0.9999225]
4 [0, 0, 1] --> [ 0.009664]
5 [1, 0, 1] --> [ 0.99358931]
6 [0, 1, 1] --> [ 0.00786466]
7 [1, 1, 1] --> [ 0.99211997]

This is for the XOR function:
INPUT OUTPUT
A B A XOR B
0 0 0
0 1 1
1 0 1
1 1 0

So we need to consider . . . . are we XORing all three values or just the first two values. . . . but nevertheless, when we plug in 1, 0, 0 we get the outcome 0.99993704, . . (1), and that is correct, however, look at all the other values! 0, 2, 3, 4, 5, 6 would be wrong, using the first two or all three, and I am not sure why we would bother with the rest if only the first two digits matter. This is pretty serious,
given that only 1 and 7 give a correct answer . . .

Hi, how do I know if the result is 0 or 1 for each sample? Should I compare think method result

I am trying python and this for the first time. I installed python 2.7 and when I run the command "python main.py" I get "No module name NumPy" error

I m new to this, but just copied full code in python 3.6 and got error xrange not defined is there any input file or something needed other than just coping code down and executing?

Hello guys

I’m getting this soon as I run

except ImportError:
        msg = """Error importing numpy: you should not try to import numpy from
        its source directory; please exit the numpy source tree, and relaunch
        your python interpreter from there."""
        raise ImportError(msg)``

Can some one give a light
Thanks