**Daily update | 29 March, 2022**

# StackExchange

#### PCA as a Cure for the Curse of Dimensionality

**Source:** stats**Views:** 120**Score:** 8**Tags:** machine-learning pca dimensionality-reduction overfitting

#### Why are GLMMs distinct from GLMs for Meta-analysis of study level data?

**Source:** stats**Views:** 28**Score:** 3**Tags:** meta-analysis poisson-regression meta-regression metafor

#### Do the principal values of higher moments exist for the Cauchy distribution?

**Source:** stats**Views:** 26**Score:** 2**Tags:** mathematical-statistics expected-value moments cauchy-distribution

#### Is it logical to combine cross-validation estimator like RidgeCV with cross_val_score in sklearn?

**Source:** stats**Views:** 13**Score:** 2**Tags:** machine-learning cross-validation scikit-learn estimators hyperparameter

#### What are the advantages and disadvantages of higher order neuron activation functions?

**Source:** stats**Views:** 10**Score:** 2**Tags:** neural-networks activation-function