~/talk

A Guide to Modern Hyperparameters Turning Algorithms

Talkat PyData Los Angeles 2019 · 2019-12-03..12-05· [machine-learning]
links:none on file
slides:none on file

Covers concrete methods and results: compares grid/random/Bayesian search, shows HyperBand/ASHA early-stops bad trials and reports running 20+ samples with 4–8 concurrent trials on 16 GPUs across 2 nodes, describes Population Based Training copies weights and mutates hyperparameters and cites nontrivial gains over published NLP/GAN/RL baselines, and demos Tune integrated with Ray and Hyperopt that scales across nodes with Ray, logs TensorBoard, and combines BO with early-stopping for faster, resource-efficient tuning.

AI-written summary · about

  1. 0:00Hyperparameter tuning intro
  2. 1:57Why hyperparameters matter
  3. 3:24Key tuning techniques
  4. 4:05Grid search strengths and limitations
  5. 5:30Random search benefits
  6. 6:12Bayesian optimization explained
  7. 9:44Hyperband early stopping
  8. 12:08Population-based training
  9. 15:21Ray Tune library intro
  10. 18:13Demo setup with Ray Tune
  11. 23:31Random search with Ray Tune
  12. 24:57HyperOpt + Ray Tune
  13. 27:13Async Hyperband scheduling
  14. 29:09Q&A preprocessing/tuning
  15. 30:35Q&A population mutations
  16. 32:27Q&A score smoothness
  17. 34:33Q&A export best params
  18. 35:46Q&A scaling depth
  19. 37:12Q&A validation sets
  20. 37:53Closing remarks
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