leemengtw

def create_placeholders(n_H0, n_W0, n_C0, n_y):
    """
    Creates the placeholders for the tensorflow session.
    
    Arguments:
    n_H0 -- scalar, height of an input image
    n_W0 -- scalar, width of an input image
    n_C0 -- scalar, number of channels of the input
    n_y -- scalar, number of classes
        

leemengtw

def conv_forward(A_prev, W, b, hparameters):
    """
    Implements the forward propagation for a convolution function
    
    Arguments:
    A_prev -- output activations of the previous layer, numpy array of shape (m, n_H_prev, n_W_prev, n_C_prev)
    W -- Weights, numpy array of shape (f, f, n_C_prev, n_C)
    b -- Biases, numpy array of shape (1, 1, 1, n_C)
    hparameters -- python dictionary containing "stride" and "pad"
        

leemengtw

def conv_single_step(a_slice_prev, W, b):
    """
    Apply one filter defined by parameters W on a single slice (a_slice_prev) of the output activation 
    of the previous layer.
    
    Arguments:
    a_slice_prev -- slice of input data of shape (f, f, n_C_prev)
    W -- Weight parameters contained in a window - matrix of shape (f, f, n_C_prev)
    b -- Bias parameters contained in a window - matrix of shape (1, 1, 1)
    

leemengtw

import numpy as np
def zero_pad(X, pad):
    """
    Pad with zeros all images of the dataset X. The padding is applied to the height and width of an image, 
    as illustrated in Figure 1.
    
    Argument:
    X -- python numpy array of shape (m, n_H, n_W, n_C) representing a batch of m images
    pad -- integer, amount of padding around each image on vertical and horizontal dimensions
    

leemengtw

leemengtw

cp -a /source/. /dest/

References
- https://askubuntu.com/questions/86822/how-can-i-copy-the-contents-of-a-folder-to-another-folder-in-a-different-directo

leemengtw

一開始下載的conda package可能是比較舊的版本, 記得更新 Conda 像是pip 一樣可以管理lib, 不過不限於python lib, 也能裝非python lib, 另外numpy, scikit等lib 是使用pre-compiled 的 MKL 版本, 更快. 而且也可以管理虛擬環境, 就像是pyenv

Package download

update conda

$conda upgrade conda

leemengtw

References
- https://stackoverflow.com/questions/2389361/undo-a-git-merge-that-hasnt-been-pushed-yet

$git reset --hard commit_sha

leemengtw

References
- https://stackoverflow.com/questions/1376718/is-it-possible-to-retrieve-your-source-code-from-heroku

$heroku login
$heroku git:clone -a YOUR_APP_NAME
$ cd YOUR_APP_NAME

$git add .
$ git commit -am "make it better"
$ git push heroku master

leemengtw

References
-  https://stackoverflow.com/questions/2971550/how-to-push-different-local-git-branches-to-heroku-master

git push heroku heroku-deploy-with-aws-setting:master