Data Science Stack Exchange is a question and answer site for Data science professionals, Machine Learning specialists, and those interested in learning more about the field. It only takes a minute to sign up.

Sign up to join this community

Anybody can ask a question

Anybody can answer

The best answers are voted up and rise to the top

Explore our Questions

Ask Question

more tags

Active Hot Week Month

0

votes

1

answer

27

views

Feature relevance in PCA + kmeans algorythm

machine-learning scikit-learn clustering feature-selection pca

modified 1 hour ago Community♦ 1

0

votes

1

answer

10

views

How to explain MAE/MSE at each node of decision tree for regression in sklearn python?

machine-learning python scikit-learn random-forest decision-trees

modified 1 hour ago Erwan 9,311

1

vote

2

answers

45

views

Loss function in GradientBoostingRegressor

machine-learning scikit-learn loss-function terminology gbm

modified 10 hours ago desertnaut 1,019

1

vote

0

answers

16

views

How to control for Co-variate shift in test data set compared to train data for regression task?

machine-learning scikit-learn regression preprocessing

modified 10 hours ago desertnaut 1,019

14

votes

3

answers

15k

views

When to use Standard Scaler and when Normalizer?

python scikit-learn data-cleaning normalization

modified 13 hours ago Esmailian 6,904

0

votes

0

answers

12

views

Multiclass ROC Curve using DecisionTreeClassifier

python scikit-learn decision-trees multiclass-classification

asked 19 hours ago JimBelushi2 103

1

vote

1

answer

18

views

Random selection of variables in each run of python sklearn decision tree (regressio )

scikit-learn regression decision-trees cart

answered yesterday Erwan 9,311

0

votes

1

answer

41

views

Multiclass classification dataset with many features producing bad accuracy of predictions

python scikit-learn nlp predictive-modeling multiclass-classification

modified yesterday Community♦ 1

3

votes

0

answers

1k

views

why the accuracy of LDA model is always changing and also is high

scikit-learn svm multiclass-classification topic-model lda

modified yesterday user106469 1

6

votes

5

answers

17k

views

issue with oneHotEncoding

python scikit-learn preprocessing

modified yesterday Konqui 1,003

0

votes

1

answer

274

views

How to fix “Expected sequence or array-like”

python scikit-learn accuracy

modified yesterday Community♦ 1

4

votes

1

answer

104

views

Why you shouldn't upsample before cross validation

python scikit-learn cross-validation class-imbalance smote

modified 2 days ago desertnaut 1,019

0

votes

1

answer

40

views

Any cluster algo can cluster time series datasets based on variation ratio(or quantity)?

machine-learning scikit-learn clustering

modified Oct 21 at 0:00 Community♦ 1

0

votes

1

answer

337

views

Error in SimpleImputer

python scikit-learn

modified Oct 20 at 19:05 Community♦ 1

Browse more Questions

Data Science Stack Exchange works best with JavaScript enabled