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SQL
7 months ago
How can we calculate the average transaction value for customers who have made more than 10 purchases in the last 90 days?
Data Scientist
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ByteDance

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Deliveroo

Patreon Logo

Patreon

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7 months ago
ML Knowledge
7 months ago
Regarding the vanishing gradient issue, which activation function—ReLU or sigmoid—is preferable?
Data ScientistMachine Learning Engineer
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ByteDance

DigitalOcean Logo

DigitalOcean

Faire Logo

Faire

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7 months ago
Statistics
7 months ago
What are type I and type II errors, and how do they differ in the context of hypothesis testing? In terms of severity, which error do you think is the worst?
Data Scientist
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ByteDance

Scribd Logo

Scribd

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DataRobot

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7 months ago
SQL
7 months ago
How will the database store details about each track, including the title, artist, album, release date, and cover art?
Data Scientist
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ByteDance

Discord Logo

Discord

DigitalOcean Logo

DigitalOcean

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7 months ago
Statistics
7 months ago
Can you describe some of the factors that might have led to the disparity in outcomes between the two groups in an A/B test?
Data Scientist
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ByteDance

Dollar Shave Club Logo

Dollar Shave Club

Rivian Logo

Rivian

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7 months ago
ML Knowledge
7 months ago
Why is DBSCAN considered a density-based clustering algorithm?
Data Scientist
ByteDance Logo

ByteDance

Mozilla Logo

Mozilla

Fitbit Logo

Fitbit

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7 months ago
ML Knowledge
7 months ago
Why does SGD converge differently than gradient descent, and what advantages does this present?
Data Scientist
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ByteDance

Zillow Logo

Zillow

Mimecast Logo

Mimecast

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7 months ago
ML Knowledge
8 months ago
In data science, precision and recall are considered important metrics for model evaluation. Can you explain the concept of these two metrics and discuss some factors that can affect their reliability?
Data Scientist
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ByteDance

Benchling Logo

Benchling

Broadcom Logo

Broadcom

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8 months ago
Statistics
9 months ago
Could you break down the idea of regression for an executive without a statistical foundation?
Data Scientist
ByteDance Logo

ByteDance

Snowflake Logo

Snowflake

Dollar Shave Club Logo

Dollar Shave Club

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9 months ago
Analytics Case
10 months ago
How do you incorporate uncertainty into your predictions of a user's lifetime value?
Data Scientist
ByteDance Logo

ByteDance

Mozilla Logo

Mozilla

Twilio Logo

Twilio

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10 months ago

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Metrics and Experimentation
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ML / Modeling
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ByteDance

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Behavioral

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*All interview questions are submitted by recent ByteDance Data Scientist candidates, labelled and categorized by Prepfully, and then published after being verified by Data Scientists at ByteDance.

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