Explain what the following code segment does, and when someone would use this segment in a real application (included a lengthy discussion about performance metrics)
Applied Scientist Interview Questions
1,159 applied scientist interview questions shared by candidates
Questions about AB Testing and churn predictions.
- Longest substring in a string - What is knowledge distillation ? - Large language models - Multi-task models
🔹 1. Conceptual Questions (Beginner–Intermediate) ❓ Supervised vs. Unsupervised learning What is the difference between supervised and unsupervised learning? Give examples of real-world problems for each. ❓ Model Understanding What is overfitting and underfitting? How do you prevent overfitting? What is the bias-variance trade-off? What are precision, recall, F1-score, and when do you prefer one over another? ❓ Algorithms How does a decision tree work? What is the difference between logistic regression and linear regression? How does K-nearest neighbors (KNN) work? What is regularization (L1 vs. L2)? 🔹 2. Intermediate to Advanced Topics ❓ Ensemble Methods How does random forest work? What is gradient boosting (e.g., XGBoost, LightGBM)? Difference between bagging and boosting? ❓ Neural Networks What is backpropagation? What are activation functions and why are they important? Difference between CNNs and RNNs. What is dropout, and why is it used? ❓ Optimization What are common optimizers in deep learning? How does stochastic gradient descent (SGD) differ from batch gradient descent?
Given that we have a machine learning model that performs well locally but when deployed to users doesn't what could possible be the cause of this
alot on resume and theory on concepts covered in resume
Having a list of words and a string, produce a list of words that can be constructed from the string using its characters while keeping the order.
How to find the least common ancestor of two nodes in a binary tree
Mainly a discussion related to the projects I've tackled recently and ML questions came up in the process.
How do you manage stakeholders on a similar level to you versus more senior stakeholders?
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