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ML Knowledge
a year ago
What characterizes a DMatrix in the XGBoost framework, and how does this differ from other data formats in gradient boosting methods?
Data ScientistMachine Learning Engineer
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AT&T

Prezi Logo

Prezi

Rivian Logo

Rivian

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a year ago
Behavioral
a year ago
Tell us about a time when you made a big mistake at work.
Data ScientistEngineering ManagerUX DesignerUX Researcher
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AT&T

Ledger Logo

Ledger

Naspers Logo

Naspers

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a year ago
Behavioral
a year ago
Describe an occasion when you took ownership
Data ScientistData Engineering ManagerML Engineering ManagerEngineering Manager
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AT&T

Soundhound Logo

Soundhound

Orange Logo

Orange

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a year ago
Behavioral
a year ago
What is your most memorable challenge from your past experiences?
Data ScientistSoftware EngineerBackend EngineerProduct Manager
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AT&T

NCR Logo

NCR

Doubtnut Logo

Doubtnut

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a year ago
Behavioral
a year ago
Which was your most creative idea?
Data ScientistEngineering ManagerUX DesignerUX Researcher
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AT&T

E*TRADE Logo

E*TRADE

Square Logo

Square

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a year ago
SQL
a year ago
How would you form a SQL query to locate all rows with names starting with 'H'?
Data Scientist
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AT&T

Robinhood Logo

Robinhood

Groupon Logo

Groupon

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a year ago
Coding
a year ago
How would you write a function that calculates the number of mines adjacent to each cell in a minesweeper board?
Data ScientistMachine Learning Engineer
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AT&T

DataRobot Logo

DataRobot

Zoox Logo

Zoox

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a year ago
ML Knowledge
a year ago
Explain the differences between neural networks and support vector machines and provide examples of circumstances that are best suited for each technique.
Data Scientist
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AT&T

Mollie Logo

Mollie

Hootsuite Logo

Hootsuite

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a year ago
ML Knowledge
a year ago
What are the key steps you take when performing ETL? How do you prioritize these steps?
Data Scientist
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AT&T

Electronic Arts Logo

Electronic Arts

Adobe Logo

Adobe

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a year ago
Behavioral
a year ago
Share a story about your failure at work.
Data ScientistData Engineering ManagerML Engineering ManagerEngineering Manager
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AT&T

Bolt Logo

Bolt

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Quizlet

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a year ago

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

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