You have finished creating your own image recognition network, understood back-propagation and the basics of Tensorflow, and still you hear about the amazing things being done with deep learning such as self-driving cars and gaming software that beats world champions in their
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Reinforcement Learning with Tensorflow – Q Learning
What is the Cross entropy function
In machine learning we use a lot the Cross entropy function, It is commonly used as a target function that we want to do optimizations. We will define the following variables before we define the function: Y – the true
Read moreFirst steps with TensorFlow using Python
Some background…. TensorFlow by Google is one of the hottest libraries for machine learning out there. It uses a graph for mathematical computation where the nodes are mathematical operations and the edges are the data arrays which are multidimensional called Tensors.
Read moreSoftmax Function in Python
The Softmax function The Softmax function is usually used in classification problems such as neural networks and multinomial logistic regression, this is just generalisation of the logistic function: f(x) = 1/(1 + e^(-k(z-z0))) The output of the Softmax is used as
Read moreHand writinen digits recognition with Random Forest in Python
In my last post I went over Decision trees and Random forest algorithms. In this post we will code a full real example of recognising written digits and trying to predict what digit is in a new image. As we said
Read moreDecision Trees and Random Forest using Python
Decision Trees Decisions Trees are classified as “supervise learning”, which means that someone needs to guide the machine what was the outcome for the current data sample it’s currently reviewing, for example: did the user buy or pass in our website? did
Read moreMachine learning guide – Logistic Regression in Python
Logistic Regression in Python In our last post we implemented a linear regression. Now it`s time to move on to a more commonly used regression that most of the leading companies uses for daily decision making. By taking a large dataset and simply saying Yes
Read moreMachine learning guide – linear regression using python
Linear regression using Python In my last post I started talking about the phrase Machine learning. What does it mean, what types of machine learning concepts exists. It`s time to drill down and start with a basic algorithm – linear
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