How to Win a Data Science Competition

Metrics

ByAdmin July 11, 2021

week – 3 Metrics >>> How to Win a Data Science Competition Learn from Top Kagglers

y_pred = [0, 0, 0, 1]

y_pred = [0.4, 0.5, 0.5, 0.6]

y_pred = [0.5, 0.5, 0.5, 0.5]

Any behavior is possible.

The correlation was also lowered.

The correlation did not change.

The correlation became larger.

0.30, 0.05, 0.25, 0.40

Optimization loss is always different to target metric.

Optimization loss is always the same as target metric.

Optimization loss can different to target metric.

Optimization loss can be the same as target metric.

If the best M1 score is attained at iteration N, then the best M2 score is always attained before N-th iteration.

If the best M1 score is attained at iteration N, then the best M2 score is always attained after N-th iteration.

If the best M1 score is attained at iteration N, then the best M2 score is always attained also at the iteration N.

There is no definite relation between the best iterations for M1 score and M2 score.

How to Win a Data Science Competition

Data leakages
ByAdmin July 11, 2021

Week – 2 Data leakages >>> How to Win a Data Science Competition Learn from Top Kagglers 1. Suppose that you have a credit scoring task, where you have to…

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How to Win a Data Science Competition

Exploratory data analysis
ByAdmin July 10, 2021

Week – 2 Exploratory data analysis >>> How to Win a Data Science Competition Learn from Top Kagglers 1. Suppose we are given a data set with features XX, YY,…

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How to Win a Data Science Competition

Feature preprocessing and generation with respect to models
ByAdmin July 10, 2021

Week – 1 Feature preprocessing and generation with respect to models 1. Suppose we have a feature with all the values between 0 and 1 except few outliers larger than…

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How to Win a Data Science Competition

Feature extraction from text and images
ByAdmin July 10, 2021

Week – 1 Feature extraction from text and images >>> How to Win a Data Science Competition: Learn from Top Kagglers 1. Select true statements about n-grams 2 points N-grams…

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How to Win a Data Science Competition

Graded quiz of How to Win a Data Science Competition
ByAdmin July 11, 2021

Week – 4 Graded quiz How to Win a Data Science Competition Learn from Top Kagglers 1. Which hyperparameters are first to tune in sklearn’s RandomForest? 1 point n_estimators, max_depth,…

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How to Win a Data Science Competition

Mean encodings
ByAdmin July 11, 2021July 11, 2021

Week – 3 Mean encodings >>> How to Win a Data Science Competition: Learn from Top Kagglers 1. What can be an indicator of usefulness of mean encodings? 1 point…

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week – 3 Metrics >>> How to Win a Data Science Competition Learn from Top Kagglers

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