~/talk

Deep Learning for QSAR

Talkat PyData London 2016 · 2016-05-06..05-08· [machine-learning, python]
links:none on file
slides:none on file

Claims that deep learning is state of the art for QSAR and cites Kaggle Merck and Tox21 wins and then shows a reproducible pipeline: data pulled with sqlalchemy and pandas, features extracted with RDKit as circular (Morgan) fingerprints, models trained with Theano and Keras using batch normalization, Adam and L1 regularization. Dataset is ~250k compounds, ~500k activities across ~710 proteins with <1% density; uses multitask outputs, implements sparse multitask masking for regression, outperforms logistic regression, predicts caffeine—adenosine affinity, but overfits and hits GPU limits.

AI-written summary · about

  1. 0:00Introduction
  2. 3:21What is deep learning
  3. 7:46Deep learning for QSAR
  4. 10:19Feature learning in molecules
  5. 12:14QSAR data challenges
  6. 15:52Cleaning sparse QSAR datasets
  7. 17:41Circular fingerprints
  8. 19:07Model architecture
  9. 20:54Model optimization
  10. 22:20Training hardware struggles
  11. 23:24Model performance metrics
  12. 24:36Testing on caffeine
  13. 25:39Model predictions with maps
  14. 28:03Regression models for QSAR
  15. 29:27Sparse multitask regression
  16. 30:54Deep vs traditional methods
  17. 31:37Transfer learning for QSAR
  18. 32:43Answering audience questions on model layers
  19. 35:05Feature representations evolution
  20. 36:19Active learning strategies
  21. 37:44Chemical structures in 2D
  22. 39:08Future directions
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