Cross Validated

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Answer a question more than 60 days later with score of 5 or more. This badge can be awarded multiple times.
Awarded 4944 times.
Free statistical textbooks
Awarded yesterday
What is the relationship between event and random variable?
Awarded 2 days ago
"Deep learning removes the need for feature engineering"?
Awarded Mar 29 at 13:28
Collapsibility: Odds Ratios versus Risk Ratios
Awarded Mar 29 at 10:31
How to normalize highly volatile time series?
Awarded Mar 28 at 22:19
What is the equation for random forest?
Awarded Mar 28 at 15:55
Why do we deseasonalize data?
Awarded Mar 27 at 11:41
Correlation Coefficient vs Coefficient of Determination
Awarded Mar 27 at 5:41
How to simulate random effects models?
Awarded Mar 26 at 19:11
How to simulate random effects models?
Awarded Mar 26 at 19:11
What does it mean to take the expectation with respect to a probability distribution?
Awarded Mar 25 at 15:40
Using a gaussian kernel in SVM. How exactly is this then written as a dot product?
Awarded Mar 25 at 4:11
Use ACF and PACF for irregular time series?
Awarded Mar 25 at 4:11
Naive SE vs Time Series SE: which statistics should I report after Bayesian estimation?
Awarded Mar 24 at 23:55
Bias Variance tradeoff in neural networks
Awarded Mar 22 at 20:15
Sum of autoregressive processes?
Awarded Mar 19 at 12:00
The Fishing Problem
Awarded Mar 17 at 19:07
Is it possible to accumulate a set of statistics that describes a large number of samples such that I can then produce a boxplot?
Awarded Mar 17 at 17:33
Algorithm to dynamically monitor quantiles
Awarded Mar 17 at 17:33
Why maximum likelihood and not expected likelihood?
Awarded Mar 16 at 12:16
Should I use the cross validation score or the test score to evaluate a machine learning model?
Awarded Mar 16 at 3:34
The variance-covariance matrix of the least squares parameter estimation
Awarded Mar 15 at 11:11
Is more data really always better in machine learning?
Awarded Mar 15 at 4:03
Is more data really always better in machine learning?
Awarded Mar 15 at 4:03
Is more data really always better in machine learning?
Awarded Mar 15 at 4:03
Calculate uncertainty of linear regression slope based on data uncertainty
Awarded Mar 13 at 23:45
How to derive variance-covariance matrix of coefficients in linear regression
Awarded Mar 12 at 14:27
Why (mathematically) is the parametric bootstrap usually better than the empirical one?
Awarded Mar 12 at 7:07
What are the differences between stochastic and fixed regressors in linear regression model?
Awarded Mar 11 at 22:47
In the most basic sense, what is marginal likelihood?
Awarded Mar 10 at 13:25
ARMA vs ARIMA Models
Awarded Mar 9 at 23:16
Convergence in probability vs. almost sure convergence
Awarded Mar 9 at 21:33
Choosing clusters for k-means: the 1 cluster case
Awarded Mar 9 at 20:42
Adding two (or more) means and calculating the new standard deviation
Awarded Mar 9 at 14:17
Small/Medium/Large Cramér's V effect size tables available for degrees of freedom > 5?
Awarded Mar 9 at 0:41
Sensibility and specificity with inconclusive cases (non binary problem)
Awarded Mar 7 at 12:56
What is the proper way to estimate the CDF for a distribution from samples taken from that distribution?
Awarded Mar 5 at 4:08
Is the EM-algorithm the same thing that variational inference in LDA?
Awarded Mar 4 at 15:40
Strictly positive response in regression: what should my "default" model be?
Awarded Mar 3 at 18:47
What is the reason behind the name "adonis" (for permutational MANOVA)?
Awarded Mar 3 at 15:27
Survival analysis in R with left-truncated data
Awarded Mar 3 at 14:16
What does "20/ln(2)" mean in logistic regression?
Awarded Mar 3 at 11:00
Is there always a maximizer for any MLE problem?
Awarded Mar 3 at 1:06
Understanding maximum likelihood estimation
Awarded Mar 2 at 12:01
Cause of a high condition number in a python statsmodels regression?
Awarded Mar 1 at 22:31
How to determine the confidence of a neural network prediction?
Awarded Mar 1 at 8:50
Where is dropout placed in the original transformer?
Awarded Feb 28 at 17:01
Mahalanobis distance distribution of multivariate normally distributed points
Awarded Feb 26 at 23:37
What is a “center loss”?
Awarded Feb 26 at 14:33
Effect of smoking on lung cancer incidence with time-weighted pack-years
Awarded Feb 26 at 2:55
Why is the validation accuracy fluctuating?
Awarded Feb 25 at 9:11
Should logistic regression models generated with and without cross validation in the caret.train function in R be the same?
Awarded Feb 23 at 20:35
What is the difference between linear regression on y with x and x with y?
Awarded Feb 23 at 14:01
When is a biased estimator preferable to unbiased one?
Awarded Feb 23 at 4:52
What is the difference between off-policy and on-policy learning?
Awarded Feb 22 at 13:48
I've heard that ratios or inverses of random variables often are problematic, in not having expectations. Why is that?
Awarded Feb 21 at 13:31
Posterior variance reduction
Awarded Feb 20 at 12:56
Simulating the impact of non-IID data on a model
Awarded Feb 20 at 7:17
Statistical test to compare two ratios from two independent models
Awarded Feb 19 at 19:22
Why exactly is the observed Fisher information used?
Awarded Feb 19 at 18:19
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