User olooney

43 votes

Industry vs Kaggle challenges. Is collecting more observations and having access to more variables more important than fancy modelling?

answered Jul 10, 2018 at 13:41

20 votes

Accepted

What must someone know in statistics and machine learning?

self-study careers

answered Apr 11, 2019 at 0:37

18 votes

Accepted

What is the name for the average of the largest and the smallest values in a given data set?

terminology mean range

answered Jul 18, 2019 at 23:16

17 votes

Is studentized residuals v/s standardized residuals in lm model

r regression residuals terminology

answered Dec 14, 2018 at 0:10

9 votes

Accepted

Derivative of the loss function w.r.t to X for the backpropagation

deep-learning backpropagation

answered Jan 16, 2019 at 22:43

9 votes

Accepted

Intuitively, how does the wild bootstrap work?

regression bootstrap intuition

answered May 16, 2019 at 16:08

8 votes

Accepted

Are the errors in this formulation of the simple linear regression model random variables?

regression random-variable assumptions

answered Jul 15, 2019 at 17:12

8 votes

Accepted

How to optimize MAPE in regression algorithms

regression machine-learning mse metric mape

answered Jul 16, 2019 at 0:55

8 votes

Accepted

Why is computing ridge regression with a Cholesky decomposition much quicker than using SVD?

regression ridge-regression svd scipy cholesky-decomposition

answered Mar 11, 2019 at 19:52

7 votes

What is the probability that $X<Y$ given $\min(X,Y)$?

probability normal-distribution conditional-probability

answered Jul 7, 2018 at 2:40

7 votes

Can confidence interval of positive values be negative?

hypothesis-testing confidence-interval

answered Jul 18, 2018 at 20:20

5 votes

Accepted

Alternatives to minimizing loss in regression

regression error

answered Jul 30, 2019 at 17:52

4 votes

Coefficient of determination $R^{2}$ for each variable in multiple regression

multiple-regression regression-coefficients r-squared

answered Jun 11, 2019 at 17:51

4 votes

Best practice for normalizing output in regression

regression neural-networks normalization

answered Jul 11, 2018 at 12:08

4 votes

Accepted

MLE of $f(x\vert\theta)=1/\theta$, $x_1 , \cdots , x_n \sim U(0,\theta) \;\;, \theta>0$,

maximum-likelihood likelihood uniform-distribution

answered Feb 9, 2019 at 16:24

4 votes

Why is chi-squared / z-test used for a/b testing in marketing?

statistical-significance mathematical-statistics marketing

answered May 2, 2019 at 16:35

3 votes

What does the pmf of a discrete random variable look like if it can take on the value $\infty$?

mathematical-statistics random-variable measure-theory

answered Apr 16, 2019 at 21:19

3 votes

Accepted

How to find out if there is any real pattern in the data set?

regression machine-learning hypothesis-testing independence

answered Apr 16, 2019 at 21:39

3 votes

Is it possible to calculate F-value for a neural network regression model?

regression neural-networks nonlinear-regression validation f-test

answered Feb 9, 2019 at 7:09

3 votes

Same results from bayesian and frequentist hypothesis testing? References needed

hypothesis-testing bayesian references frequentist

answered Nov 6, 2017 at 15:09

3 votes

Does it make sense to run DBSCAN on the output from t-SNE?

clustering tsne dbscan

answered Jun 15, 2018 at 1:14

3 votes

Accepted

Paired data comparison: regression or paired t-test?

regression t-test paired-data

answered Jun 20, 2018 at 11:32

3 votes

Covariance versus correlation: which is a "deeper" or more "structural" property of the data?

correlation covariance intuition philosophical

answered Jul 1, 2018 at 22:27

3 votes

Accepted

Which model for feature importances?

feature-selection lasso cart

answered Sep 13, 2018 at 22:47

3 votes

Does SVM perform poorly with too few observations

machine-learning svm e1071

answered Apr 3, 2020 at 16:51

3 votes

Applying TF/IDF to non-text data?

classification references ordinal-data discrete-data tf-idf

answered Jul 11, 2019 at 14:44

2 votes

Accepted

Very basic question about task

classification python accuracy

answered Aug 21, 2019 at 15:35

2 votes

Accepted

How to present results of 2 binary experiments?

data-visualization binomial-distribution binary-data

answered Sep 19, 2018 at 19:35

2 votes

Moment generating function between 2 variables

moment-generating-function

answered Nov 9, 2018 at 22:41

2 votes

Additive Or Multiplicative Time Series Model?

mathematical-statistics

answered Jun 30, 2018 at 0:20

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60 Answers

Industry vs Kaggle challenges. Is collecting more observations and having access to more variables more important than fancy modelling?

What must someone know in statistics and machine learning?

What is the name for the average of the largest and the smallest values in a given data set?

Is studentized residuals v/s standardized residuals in lm model

Derivative of the loss function w.r.t to X for the backpropagation

Intuitively, how does the wild bootstrap work?

Are the errors in this formulation of the simple linear regression model random variables?

How to optimize MAPE in regression algorithms

Why is computing ridge regression with a Cholesky decomposition much quicker than using SVD?

What is the probability that $X<Y$ given $\min(X,Y)$?

Can confidence interval of positive values be negative?

Alternatives to minimizing loss in regression

Coefficient of determination $R^{2}$ for each variable in multiple regression

Best practice for normalizing output in regression

MLE of $f(x\vert\theta)=1/\theta$, $x_1 , \cdots , x_n \sim U(0,\theta) \;\;, \theta>0$,

Why is chi-squared / z-test used for a/b testing in marketing?

What does the pmf of a discrete random variable look like if it can take on the value $\infty$?

How to find out if there is any real pattern in the data set?

Is it possible to calculate F-value for a neural network regression model?

Same results from bayesian and frequentist hypothesis testing? References needed

Does it make sense to run DBSCAN on the output from t-SNE?

Paired data comparison: regression or paired t-test?

Covariance versus correlation: which is a "deeper" or more "structural" property of the data?

Which model for feature importances?

Does SVM perform poorly with too few observations

Applying TF/IDF to non-text data?

Very basic question about task

How to present results of 2 binary experiments?

Moment generating function between 2 variables

Additive Or Multiplicative Time Series Model?