Comparing Logistic Regression, SVM, kNN for predicting follow-up in all Amnesty International Urgent Actions (not split by category, yet)
- Run once to generate ./data/amnesty_dtm.RData
- DTM of Urgent Actions
- 99% sparse: ~5165 Urgent Actions, with 3506 inputs from DTM
- 95% sparse (./data/amnesty_s95_dtm.RData): ~5165 Urgent Actions, with 653 inputs from DTM
- Compares:
- Logistic Regression w/ LASSO regularization via 10-fold X-valiation
- kNN (k = 5-50)
- SVM (linear,poly,radial) w/ cost = 1-10