What is backpropagation really doing? | Chapter 3, deep learning What is backpropagation really doing? | Chapter 3, deep learning begin-post-stats 3Blue1Brown • 410K views end-post-stats begin-duration 13:54 end-duration Math topics: _Theoretical_computer_science_##Theoretical computer science##_Recursion_##Recursion##_Artificial_intelligence_##Artificial intelligence##_Algorithm_##Algorithm##_Mathematical_optimization_##Mathematical optimization##_Mathematical_optimization_##Mathematical optimization##_Stochastic_gradient_descent_##Stochastic gradient descent##_Gradient_descent_##Gradient descent##_Calculus_##Calculus##_Maxima_and_minima_##Maxima and minima##_Calculus_##Calculus##_Euclidean_vector_##Euclidean vector Other topics: _Machine_learning_##Machine learning##_Machine_learning_##Machine learning##_Sigmoid_function_##Sigmoid function##_Loss_function_##Loss function##_Backpropagation_##Backpropagation##_Terminology_##Terminology##_Proportionality_(mathematics)_##Proportionality (mathematics)##_Terminology_##Terminology##_Neuron_##Neuron video-id: Ilg3gGewQ5U channel_3Blue1Brown_ So What Learning Calculus , Machine learning , Mathematical optimization , Terminology , Theoretical computer science Friday, January 12, 2018 Share Share