Interview questions

Run EDA and train models while preventing overfitting

Companies: Imc

Scale and Normalize: When to Use Each Method?

Companies: Boston Consulting Group

Select the better $5 promo-targeting model

Companies: Uber

Self-Attention: Implementation, Complexity, and Efficient Variants

Companies: Meta

ML Coding · Transformers & Attention

Simulate and Compare Multi-Armed Bandit Strategies

Companies: Wayfair

Probability · Sequential & Adaptive Testing

Solve a constrained problem using KKT conditions

Companies: Imc

Solve Dice Probability and Matrix Questions

Companies: Hudson River Trading

Solve Probability and Statistics Questions

Companies: Squarepoint

Probability · Regression & Statistical Modeling

Staffing an AI Project and Handling Personal Identifiers in LLM Training Data

Companies: Microsoft

AI Product Management · Privacy & Compliance

Test whether samples follow a binomial distribution

Companies: JPMorgan

Train a byte-pair tokenizer with reserved tokens

Learn a bounded vocabulary and ordered byte-pair merges while reserving supplied special tokens.

General practice

Train and improve a scikit-learn binary classifier

Companies: Perplexity

Model Evaluation · Supervised Learning

Train GradientBoostingClassifier with 5-Fold Cross-Validation

Companies: Boston Consulting Group

Train with imbalanced sampled data

Companies: LinkedIn

Transformer Complexity, Inference Optimization, GQA and FlashAttention

Companies: LinkedIn

LLM Inference & Serving · Transformers & Attention

Tune classifier and compute key metrics

Companies: Cvs Health

Model Evaluation · Supervised Learning

Tune fraud threshold under review capacity and costs

Companies: Meta

Understand Bias-Variance Trade-off and Regularization Techniques

Companies: Spokeo

Use a Fitted Line to Predict a Future Data Point

Companies: Amazon

Model Evaluation · Regression & Statistical Modeling

Using, Evaluating and Adapting a Pretrained Large Language Model

Companies: Wells Fargo

Fine-Tuning & Alignment Techniques · LLM Applications

Validate and monitor ranking model end-to-end

Companies: Expedia

Validate Features That Predict User Retention

Companies: Mixpanel

Feature Engineering · Model Evaluation