Recent questions tagged test-set / Ask Data Science

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548

548 views

How do I know which encoder to use to convert from categorical variables to numerical?

So say I have a column with categorical data like different styles of temperature: 'Lukewarm', 'Hot', 'Scalding', 'Cold', 'Frostbite',... etc.I know that we can use pd.ge...

Anas

150 points

asked Nov 28, 2021

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1 1 answer

2.9k

2.9k views

What is the difference between cross-validation and validation set?

I am confused about this figure. Is not this a cross-validation test or we have a fixed few examples for which it is tested while you also have various folds being tested...

tofighi

116k points

asked Jun 19, 2019

2 2 votes

1 1 answer

591

591 views

How do I know when it is appropriate to use stratified sampling?

cbarbisan

180 points

asked Feb 19, 2019

1 1 vote

0 0 answers

1.1k

1.1k views

What are Training set, Validation set, Test set, and Gold set in supervised and unsupervised machine learning?

interview

1.4k points

asked Oct 8, 2018