The numpy-cnn from elefhead

numpy-cnn's People

Contributors

Stargazers

Watchers

numpy-cnn's Issues

can not run

Hello! When I run cnn.py, I received error as following:
FileNotFoundError: [Errno 2] No such file or directory: './data/data_batch_1'

could you please check it?

Clarification about the implementation

I've seen that in flatten.py you are transposing the input after flattening and reshaping with np.reshape(Z.shape[0], -1).
If this is the output from the previous layer:

array([[[[-18.0992297 ,   4.02661879, -26.38740113],
         [  4.1076395 ,   5.11381946,  -1.99698891],
         [  3.52465515,  12.75818289,  -1.3031802 ]]],


       [[[ -6.1276822 ,  -0.63462835,   0.65559075],
         [  0.09962715,   3.65460836,   7.24738437],
         [-21.24060198,  -0.21378359, -21.09988605]]],


       [[[-34.73760556,   4.71261136,  23.10390976],
         [ -7.06577993,  15.1269017 ,   6.36696882],
         [-31.18436636,  -5.41256305,  25.87760449]]],


       [[[ 12.32376955, -23.15656867,  -2.30117432],
         [  4.28086566,   6.55903427, -17.02264095],
         [-18.28691051, -16.67304131,  16.4118617 ]]]])
# a.shape = (4, 1, 3, 3) --> feature_maps, depth, height, width

than the output of the Flatten layer will be:

array([[-18.0992297 ,  -6.1276822 , -34.73760556,  12.32376955],
       [  4.02661879,  -0.63462835,   4.71261136, -23.15656867],
       [-26.38740113,   0.65559075,  23.10390976,  -2.30117432],
       [  4.1076395 ,   0.09962715,  -7.06577993,   4.28086566],
       [  5.11381946,   3.65460836,  15.1269017 ,   6.55903427],
       [ -1.99698891,   7.24738437,   6.36696882, -17.02264095],
       [  3.52465515, -21.24060198, -31.18436636, -18.28691051],
       [ 12.75818289,  -0.21378359,  -5.41256305, -16.67304131],
       [ -1.3031802 , -21.09988605,  25.87760449,  16.4118617 ]])
# a.shape == (4, 9)

It isn't flattened. What didn't I understand? Why not just returning Z.flatten()?
Thanks!

Problem with 'valid' padding

I've looked at the code and in layers/convolution.py line 156:

dA[i, :, :, :] = da_pad[pad_h: -pad_h, pad_w: -pad_w, :]

If you use 'valid' padding then pad_w and pad_h would be 0 which will put an empty array in dA.

dA[i, :, :, :] = da_pad[0: -0, 0: -0, :]

Recommend Projects

React

A declarative, efficient, and flexible JavaScript library for building user interfaces.

Vue.js

🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

Typescript

TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

TensorFlow

An Open Source Machine Learning Framework for Everyone

Django

The Web framework for perfectionists with deadlines.

Laravel

A PHP framework for web artisans

D3

Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Recommend Topics

javascript

JavaScript (JS) is a lightweight interpreted programming language with first-class functions.

web

Some thing interesting about web. New door for the world.

server

A server is a program made to process requests and deliver data to clients.

Machine learning

Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.

Visualization

Some thing interesting about visualization, use data art

Game

Some thing interesting about game, make everyone happy.

Recommend Org

Facebook

We are working to build community through open source technology. NB: members must have two-factor auth.

Microsoft

Open source projects and samples from Microsoft.

Google

Google ❤️ Open Source for everyone.

Alibaba

Alibaba Open Source for everyone

D3

Data-Driven Documents codes.

Tencent

China tencent open source team.

elefhead / numpy-cnn Goto Github PK