Alexey Burnakov's user avatar
Alexey Burnakov's user avatar
Alexey Burnakov's user avatar
Alexey Burnakov
  • Member for 7 years, 6 months
  • Last seen more than a week ago
  • Moscow, Russia
31 votes
Accepted

Mathematical differences between GBM, XGBoost, LightGBM, CatBoost?

22 votes

Why is this prediction of time series "pretty poor"?

8 votes
Accepted

Multiple metrics in keras - why and when might we want to use it?

7 votes
Accepted

Why do we use ANOVA and linear regression together?

5 votes

A chart of daily cases of COVID-19 in a Russian region looks suspiciously level to me - is this so from the statistics viewpoint?

4 votes

What does it mean L1 loss is not differentiable?

4 votes

Dealing with results from thousands of regression models

4 votes

Minimum Training size for simple neural net

4 votes

The Myth of Long-Horizon Predictability

4 votes

How to measure dispersion in word frequency data?

4 votes
Accepted

No lags outside confidence bands. How to build ARIMA in this case?

3 votes
Accepted

How is Information Gain Biased?

3 votes
Accepted

R lm covariance matrix manual calculation: failure

3 votes
Accepted

Question about bootstrap and confidence intervals

3 votes
Accepted

Adaptive Lasso for Time Series : R package?

2 votes

What is a data scientist?

2 votes

LSTM NN produces "shifted" forecast (low quality result)

2 votes

Why does XGBoost have a learning rate?

2 votes
Accepted

What could be the causes of weights not changing during backpropagation?

2 votes
Accepted

What is a correct implementation of the moving average model

2 votes

Why does modelling t-SNE 2D coordinates with a neural network fail to produce a perfect fit?

2 votes

Time Series Forecasting Workflow

2 votes

What are the Advantages of R over Python in Statistics?

2 votes

Too high statistical significance on random data

2 votes
Accepted

Best Practice for choosing hyperparameters for stacking/majority voting

2 votes

Choosing best time series model at run time for multiple time series

2 votes

Correlation between two binary time series

2 votes
Accepted

what is strong correlation?

2 votes

Time Series Analysis - ARIMA

1 vote

Linear regression to answer causal questions