How to generate MODULUS for RSA using openssl?
If you use openssl RSA API to encrypt/decrypt/sign/verify, you will need a MODULUS, which is part of a RSA public key. To generate a MODULUS, first you need to generate […]
Softmax and cross entropy
Softmax is unlike other activation functions such as tanh and sigmoid, which take one number as input and output one number. Softmax activation function takes several numbers as input and […]
How to download the MNIST images?
MNIST dataset is a frequently used image dataset for neuron network and deep learning study. How to download the MNIST dataset? import tensorflow as tf (X_train, y_train), (X_test, y_test) = […]
Tensorflow TensorArray
tf.TensorArray is a class, not a function. You can use tf.TensorArray to construct a TensorArray operation: ta = tf.TensorArray(dtype=tf.float32, size=2) Here, the tensorarray contains 2 tensors. How to get […]
Attributes of tensorflow operations
Consider the following example: a=tf.constant([[1,2,3],[4,5,6]],shape=(2,3),name=”a”) b=a+1 It will produce the following graph: We can see a constant tensorflow operation has two attributes: dtype is the type of the elements stored […]
How is tensorflow while_loop implemented?
Consider the following example: i = tf.get_variable(“i”, dtype=tf.int32, shape=[], initializer=tf.ones_initializer()) n = tf.constant(10) def cond(a, n): return a< n def body(a, n): a = a + 2 return a, n […]
Learn Hands-On Machine Learning with Scikit-Learn and TensorFlow-Chapter 14
A RNN(Recurrent Neural Network) layer is composed of a set of recurrent neurons. The output of each recurrent neuron is dependent not only on the input vector but also the […]
Learn Hands-On Machine Learning with Scikit-Learn and TensorFlow-Chapter 13
It is interesting to know the fact that some visual neurons reacts to only part of the region we can see(so called local receptive field). This is contrary to institution […]
Learn Hands-On Machine Learning with Scikit-Learn and TensorFlow-Chapter 12
Cuda and CuDNN. CuDNN is based on CUDA. install tensorflow for GPU: pip install tensorflow-gpu set the environment variable CUDA_VISIBLE_DEVICES=3,2 then run a tensorflow program to let the tensorflow program […]
Learn Hands-On Machine Learning with Scikit-Learn and TensorFlow-Chapter 11
To understand the content of this chapter, we need to review the concept about gradient and gradient descent. Gradient descent algorithm was introduced in chapter 4. In that chapter, a […]