Classification task with strong class imbalance: which metrics are good, which are bad?
Middle
160
Machine Learning / AI
3628
0
In what order are SQL operators executed in a query?
Middle
160
What metrics did you use to evaluate system quality and how did you achieve a 40% improvement?
Middle+
160
What is the advantage of ROC-AUC compared to F1 and Precision?
Middle
160
What is the difference between the apply and map methods in Pandas?
Middle
160
Is a list a mutable data type in Python?
Middle
160
Pre-Layer Norm vs Post-Layer Norm — what is the difference and why is it important for training stability?
Senior
160
How was validation conducted?
Middle
160
Where and what needs to be stored to ensure fault tolerance in auto-call rejection tasks?
Middle
160
How to extract text from scans?
Middle
160
Tell us about Batch Normalization: what it is and why it is needed?
Middle+
160
How can you achieve a strictly structured response model, for example in JSON?
Senior
160
What metrics were used to measure retrievability (which dataset and tool)?
Middle+
160
What did you most enjoy: building models or working with data?
Middle
160
Rate your English separately for reading/writing and speaking according to CEFR levels.
Senior
160
How to train a model? Seq-to-seq is expensive, and there are many hyperparameters. How to do it?
Senior
160
Write a short paragraph for self-presentation, highlighting that recommendation systems are very similar to RAG - retrieval, reranking, architectural similarities, and so on, so I can remember and explain.
Senior
160
How do you consider the situation when a funny answer has many likes but is not correct?
Middle
160
Is the total experience of 3 years 2 months documented?
Middle
160
Did I understand correctly: we have a ranker with an average score from the content ranker based on content filling, with user and block features, and we took positive — what exactly?
Senior
160