Sobes.tech

Machine Learning / AI

How do you measure bias and variance of a model?

Middle
249

What is target encoding and what are its problems (overfitting, leakage)?

Middle — Senior
244

How to decide on the loss function for a model from a business and data perspective?

Middle
215

What optimizations does Spark perform?

Middle
195

Why is it not enough to just calculate the median on each worker and then combine?

Middle — Senior
193

What loss functions and metrics are best to use when forecasting demand for perishable goods?

Middle
191

What is a north star metric and proxy metrics?

Middle — Senior
189

What is ConvNeXt and why did it catch up with ViT in quality?

Junior — Senior
189

What is BERTScore and why is it better than BLEU for evaluation of generation?

Junior — Middle
183

How does boosting work and how is a boosting model built?

Middle
180

What are masked autoencoders (MAE) for CV?

Middle — Senior
180

What tasks does ML solve in agriculture (yield prediction)?

Senior
179

What is the decomposition of time series into trend and seasonality?

Middle
178
/4