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ML Knowledge

6 months ago

In cases where one class is much more prevalent than the other in binary classification, what measures do you put in place to overcome this imbalance?

Data Scientist

Lyft

Qualtrics

Akamai

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6 months ago

Behavioral

6 months ago

Have you received any difficult feedback and how have you handled it?

Data ScientistData Science ManagerEngineering ManagerUX Designer

Palantir Technologies

Spotify

Uber

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6 months ago

SQL

6 months ago

What approach would you take in SQL to find unique conversation events within a database?

Data Scientist

Microsoft

Fitbit

Digit

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6 months ago

ML Knowledge

6 months ago

How would you measure the effectiveness of a clustering model if the labels are available beforehand?

Data Scientist

Square

Verizon

Oracle

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6 months ago

Behavioral

6 months ago

Give us an example of a big mistake you made at work.

Data ScientistEngineering ManagerUX DesignerUX Researcher

Uber

Google

TikTok

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6 months ago

Behavioral

6 months ago

Tell me about a time when you had several competing priorities. What did you do?

Data ScientistBackend EngineerProduct ManagerNetwork Engineer

Palo Alto Networks

Meta

Spotify

Calm

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6 months ago

SQL

6 months ago

When it comes to performance, do you think subqueries or joins are more efficient?

Data Scientist

ServiceNow

Prezi

HelloFresh

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6 months ago

Behavioral

6 months ago

When have you gone an extra mile for a project or endeavor?

Data ScientistML Engineering ManagerData Engineering ManagerData Science Manager

Snap

Square

Uber

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6 months ago

ML Knowledge

6 months ago

There are several ways to optimize hyperparameters in a machine learning model. How would you compare and contrast grid search CV and random search CV for this task?

Data Scientist

Amazon

Swiggy

Shutterstock

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6 months ago

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^*All interview questions are submitted by recent Data Scientist candidates, labelled and categorized by Prepfully, and then published after verification by current and ex-Data Scientist employees.