Logistic Regression and the Perceptron Algorithm: A friendly introduction
Serrano.Academy
@serranoacademyAbout
Welcome to Serrano.Academy! I'm Luis Serrano and I love demystifying concepts, capturing their essence, and sharing these videos with you. I prefer illustrations, analogies, and cartoons, rather than formulas (although we don't shy away from the math when needed). The topics I have are machine learning, mathematics (probability and statistics), but I'm open to many others. If you have any topics you'd like to suggest, feel free to add them in the comments or drop me a line! For more information, check out http://serrano.academy. And also check out my book! Grokking Machine Learning http://manning.com/books/grokking-machine-learning (40% discount code: serranoyt)
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For a code implementation, check out these repos: https://github.com/luisguiserrano/manning/tree/master/Chapter_5_Perceptron_Algorithm https://github.com/luisguiserrano/manning/tree/master/Chapter_6_Logistic_Regression Announcement: New Book by Luis Serrano! Grokking Machine Learning. bit.ly/grokkingML 40% discount code: serranoyt An introduction to logistic regression and the perceptron algorithm that requires very little math (no calculus or linear algebra), only a visual mind. 0:00 Introduction 0:08 Series of 3 videos 0:41 E-mail spam classifier 7:19 Classification goal: split data 11:36 How to move a line 12:21 Rotating and translating 18:47 Perceptron Trick 23:20 Correctly and incorrectly classified points 24:20 Positive and negative regions 27:18 Perceptron Error 29:40 Gradient Descent 34:36 A friendly introduction to deep learning and neural networks 37:48 Activation function (sigmoid) 38:31 Log-Loss Error 41:37 Perceptron Algorithm 42:45 Logistic regression algorithm 44:48 Thank you!
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