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Rubens Zimbres
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Latest Activity

ajit jaokar liked Rubens Zimbres's blog post 24 Neural Network Adjustements
Tuesday
James Arrow liked Rubens Zimbres's blog post A Cheat Sheet on Probability
Jun 14
César de Pablo commented on Rubens Zimbres's blog post A Cheat Sheet on Probability
"Thanks for sharing. Please check if Total Probability is correct , whether your notation is inconsistent or you are missing the P(1st red), P(1st green) etc…"
May 22
sudhindra N Rao commented on Rubens Zimbres's blog post A Cheat Sheet on Probability
"Thanks for Sharing great P sheet"
May 22
Alejandro Ortiz liked Rubens Zimbres's blog post Matrix Multiplication in Neural Networks
Apr 25
Eduardo Vinas commented on Rubens Zimbres's blog post Neural Networks: The Backpropagation algorithm in a picture
"In the "Before" calculation, the last steps, g'(x)=g'(f(3)).10, why f(3)? We said that x=2, so, could it be the following instead? "g'(x)=g'(f(2)).10""
Apr 25
Erica Dretzka liked Rubens Zimbres's blog post 24 Neural Network Adjustements
Apr 25
Erica Dretzka liked Rubens Zimbres's blog post Neural Networks: The Backpropagation algorithm in a picture
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Profile Information

Short Bio
Senior Data Scientist at BOOST Machine Learning - Brazil
My Web Site Or LinkedIn Profile
http://https://br.linkedin.com/in/rubens-zimbres
Professional Status
Consultant
Years of Experience:
13
Your Company:
BOOST Machine Learning
Industry:
Consulting Management
Your Job Title:
Dr.
How did you find out about DataScienceCentral?
LinkedIn
Interests:
Finding a new position, Networking, New venture
What is your Favorite Data Mining or Analytical Website?
http://wolfram.com

Rubens Zimbres's Blog

A Cheat Sheet on Probability

Posted on November 21, 2016 at 2:28am 9 Comments

Neural Networks: The Backpropagation algorithm in a picture

Posted on November 19, 2016 at 9:30am 3 Comments

Here I present the backpropagation algorithm for a continuous target variable and no activation function in hidden layer: although simpler than the one used for the logistic cost function, it's a proficuous field for math lovers.

Matrix Multiplication in Neural Networks

Posted on November 16, 2016 at 11:00am 4 Comments

This post is the outcome of my studies in Neural Networks and a sketch for application of the Backpropagation algorithm. It's a binary classification task with N = 4 cases in a Neural Network with a single hidden layer. After the hidden layer and the output layer there are sigmoid activation functions. Different colors were used in the Matrices, same color as the Neural Network structure (bias, input, hidden, output) to make it easier to understand.…

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24 Neural Network Adjustements

Posted on October 27, 2016 at 7:30am 0 Comments

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At 9:50am on June 26, 2016, Syed Danish Ali said…

you are wlcome rubens . cheers! :) 

 
 
 

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