How to organize data storage considering data from multiple sources: backend databases, clickstream, CRM, and communications?
Middle
236
Machine Learning / AI
3597
0
223
What is Named Entity Recognition (NER)? What annotation is most commonly used (BIO, BIOES)?
219
219
What types of indexes exist?
Middle
211
Design an auto-tagging system for products by photo on a marketplace.
208
202
What are the data delivery speed requirements: real-time or batch?
Middle
200
What are sequence-based recommendations (SASRec, BERT4Rec)?
Middle — Senior
197
How to use Airflow for orchestrating ETL processes?
Middle
196
193
Why do transformers have multiple attention heads? What do they learn in practice?
Middle — Senior
187
Have you worked with Great Expectations and dbt tests for data quality verification?
Middle
187
Will the data be standardized and unified before loading into the warehouse?
Middle
186
Why choose the Kimball's star schema over the Operational Business Table (OBT)?
Middle
183
What is matrix factorization in recommendations (SVD, ALS)?
Middle — Senior
183
180
What is Feast and what are its components (offline/online store)?
Middle — Senior
178
What is a cure model?
Senior
178
How to monitor data upload completeness?
Middle
177