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Ryan Bressler

I'm a Software Engineer with a background in math and statistics working in computational biology, data analysis and visualizations. I'm particularly interested in graph analysis and methods like Random Forests that work well on noisy, large, wide heterogeneous data sets common in biology.

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20 Improve classification with many categorical variables Apr 25 '14
14 How to deal with a skewed class in binary classification having many features? Dec 27 '14
11 Is there any value in dimensionality reduction of a data set where all variables are approximately orthogonal? Dec 24 '14
11 If Manhattan distance always performs better on a dataset…what does it mean? Jan 17 '15
10 When to use Gini impurity and when to use information gain? Dec 23 '14
10 Hierarchical clustering of correlation matrix Apr 24 '14
7 Weighting more recent data in Random Forest model Mar 30 '14
6 Finding interactions using randomForest Mar 28 '14
6 How to estimate confidence level for SVM or Random Forest? Apr 23 '14
4 Imbalanced training dataset and Random Forest regression model Mar 28 '14
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