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GeorgeOfTheRF

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70 How to get correlation between two categorical variable and a categorical variable and continuous variable? Aug 3 '14
17 How to predict probabilities in xgboost? Sep 8 '15
9 How to use Cohen's Kappa as the evaluation metric in GridSearchCV in Scikit Learn? Sep 11 '15
8 Why is finite precision a problem in machine learning? Dec 8 '15
4 What does SpatialDropout1D() do to output of Embedding() in Keras? Sep 20 '18
3 Which accuracy metric of a ML classifier can maximize map@K of a recommender system for an unbalanced dataset? Sep 2 '15
2 What is a suitable loss function and evaluation metric for a classification model with large number of unbalanced target classes? Nov 9 '18
2 Why is each successive tree in GBM fit on the negative gradient of the loss function? Feb 21 '16
1 What exactly is the “hyperbolic” tanh function used in the context of activation functions? Mar 6 '18
1 What does GlobalMaxPooling1D() do to output of LSTM unit in Keras? Sep 19 '18

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