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204.5.10 Local vs. Global Minimum

In previous post we built a Neural Network model and found the accuracy of the model.

In this post we will go further into the algorithm again and understand a simple concept of Local and Global Minima. This helps us build a neural network model which works best for us.

Local vs. Global Minimum

  • The neural network might give different results with different start weights.
  • The algorithm tries to find the local minima rather than global minima.
  • There can be many local minima’s, which means there can be many solutions to neural network problem
  • We need to perform the validation checks before choosing the final model.
Images above are visual representation of the local and global minima.

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