~/talk

Using Support Vector Machines in Scikit Learn to discover genetic aetiologies

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

Support vector machines implemented with scikit-learn + Pandas + Joblib process features from single SNPs up to functional gene‑sets and fail to improve classification AUC (≈0.6–0.7) over the conventional polygenic risk score, but do produce interpretable coefficients: repeated train/test splits show a consistent high weight on the FMRP gene set signal. The workflow uses randomized search CV + pipelines with scaling, explores ~5,000 sub‑threshold SNPs, and simulation experiments show kernels detect pairwise interactions that linear models miss.

AI-written summary · about

  1. 0:00Schizophrenia genomics intro
  2. 1:55Genetic complexity explained
  3. 4:02Genome-wide association studies in psychiatry
  4. 7:13Polygenic scores vs ML
  5. 8:41Support Vector Machines fundamentals
  6. 10:44Linear SVM limits and kernel trick
  7. 12:10Feature selection for SVM
  8. 14:16Parameter tuning in scikit-learn
  9. 16:24Results and performance
  10. 19:57Gene set analysis with pandas
  11. 22:00Interpreting SVM coefficients
  12. 25:11Conclusions and future
  13. 30:48Q&A
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