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Novice entry depth learning | 3-6: optimizer optimizers
2022-07-06 00:41:00 【Classmate K】
- Running environment :python3
- author :K Students
- Select columns :《 Deep learning 100 example 》
- From column :《 Novice introduction and deep learning 》
- Recommendation column :《Matplotlib course 》
- 🧿 Excellent column :《Python introduction 100 topic 》
The optimizer is in the process of deep learning back propagation , Guide the loss function ( Objective function ) The parameters of are updated in the correct direction and the appropriate size , Make the updated parameters let the loss function ( Objective function ) The value keeps approaching the global minimum .
I wrote a lot of things , But I feel that talking too much will be counterproductive ,
The choice of model optimization algorithm is directly related to the performance of the final model . Sometimes it doesn't work , It's not necessarily about features or model design , It's probably the problem of optimizing the algorithm .
Deep learning optimization algorithm has probably experienced SGD -> SGDM -> NAG ->Adagrad -> A
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