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SQL

2 years ago

Given a dataset, write a query to measure monthly retention.

Data Scientist

TikTok

Deliveroo

Mixpanel

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2 years ago

ML Knowledge

2 years ago

Can you explain the relationship between Gradient Descent and deep learning models? How does Gradient Descent contribute to the training process of deep learning models?

Data Scientist

TikTok

Booking.com

BetterUp

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2 years ago

Behavioral

2 years ago

When you held a lot of responsibility previously, how did you overcome a challenge?

Data ScientistBackend EngineerProduct ManagerSoftware Engineer

TikTok

MyGlamm

HubSpot

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2 years ago

ML Knowledge

2 years ago

How do dimensionality reduction techniques help to simplify complex data sets, and what are some common methods used in this process?

Data Scientist

TikTok

OpenDoor

Atlassian

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2 years ago

ML Knowledge

2 years ago

The AUC is a critical performance indicator for a model. Do you know how to calculate AUC for a given model?

Data Scientist

TikTok

Deloitte

Virta

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2 years ago

Statistics

2 years ago

What makes the standard error of the mean different from the standard error of the median?

Data Scientist

TikTok

Curve

Arm

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2 years ago

SQL

2 years ago

What differentiates SQL window functions from standard aggregation and joining techniques?

Data Scientist

TikTok

Stitch Fix

Quantcast

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2 years ago

Analytics CaseProduct Case

2 years ago

What factors do you think should be prioritized when implementing a 'people you may know' program to optimize the suggested friend feature?

Data Scientist

TikTok

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2 years ago

ML Knowledge

2 years ago

How do you weigh the pros and cons of different algorithms when selecting the most appropriate one for a specific machine learning task?

Data Scientist

TikTok

Springboard

Huawei

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2 years ago

Coding

2 years ago

How would you design an LRU cache to ensure that it efficiently stores and retrieves the most recently used items?

Data Scientist

TikTok

BuzzFeed

Samsara

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2 years ago

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