Sobes.tech

Machine Learning / AI

Tell me more about FAISS: how is the index structured, how is it deployed, and how does the end-to-end system work?

Senior
164

Tell me about the vacancy.

Senior
162

Why does the function return 0 when there is only one class in the sample?

Senior
161

Tell me, how does a reranker work — did you go into details or use it as a ready-made engineering brick?

Senior
159

How interesting would it be to delve into recommendation systems?

Senior
157

How is a two-level and double-headed recommender system organized and why is it needed?

Senior
157

Please tell us why you are currently looking for a job.

Senior
154

How did you choose the model for embeddings? Were there document filtering and reranking stages?

Senior
153

How do we deal with the fact that the old display policy may not be optimal, even when using propensity — propensity here won't help much?

Senior
153

Can you explain how off-policy evaluation works (for example, IPS or Double Robust) that you mentioned?

Senior
153

Explain briefly how the Double Robust approach differs from IPS — what is added and what makes it more robust and resilient?

Senior
151

Can you tell more? (about RAG system protection against hallucinations)

Senior
151

Can you explain in simple terms the difference between Recall and MRR?

Senior
151

Regarding the target minus one — how would this work theoretically in boosting? Suppose we have positive and negative, if we set the target for positive to 10 instead of one — will it change anything?

Senior
151

I don't understand why we can't do everything online — what are the real limitations here? Why is pre-calculation needed?

Senior
151

It seemed to us that in the middle of the interview you used an assistant when answering the theoretical question about LangGraph. Is that true or not?

Senior
151

Explain why a two-tower network helps solve the first level ceiling problem — how exactly does it do that?

Senior
150

What is collaborative filtering?

Senior
150

(After clarification from the interviewer) How to now formulate the task and approach, considering that item recommendations already exist, and you need to arrange blocks on the main page without content duplication?

Senior
150

Let's compare DAU, RPS, and QPS: if we have 10 million DAU and each user logs in 4 times a day, what will be the RPS and QPS?

Senior
149
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