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SQL
a year ago
Given a dataset, write a query to measure monthly retention.
Data Scientist

Zalora

Twitch

Improbable

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a year ago
Behavioral
a year ago
Could you tell us your top 3 strengths and how they align with Zalora?
Data Scientist

Zalora

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a year ago
Behavioral
a year ago
Tell me about an instance when you were proved wrong.
Data ScientistProgram ManagerEngineering ManagerUX Designer

Zalora

Postman Logo

Postman

Gemalto Logo

Gemalto

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a year ago
Coding
a year ago
Can you devise an algorithm that finds all possible triplets in an input array whose sum adds up to a specified target value?
Data Scientist

Zalora

Citrix Logo

Citrix

Airbnb Logo

Airbnb

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a year ago
Statistics
a year ago
How would you go about synthesizing 1000 normally distributed data points with mean x and variance y, summarizing the dataset, and plotting the density?
Data Scientist

Zalora

BuzzFeed Logo

BuzzFeed

ASML Logo

ASML

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a year ago
Statistics
a year ago
For a square grid filled with numbers, what path from the top-left to the bottom-right, moving only down or right, results in the largest sum?
Data Scientist

Zalora

AppDynamics Logo

AppDynamics

Nutanix Logo

Nutanix

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a year ago
ML Knowledge
a year ago
What is an ROC curve plot? What's the difference between bagging and boosting?
Data ScientistMachine Learning Engineer

Zalora

Taboola Logo

Taboola

Stitch Fix Logo

Stitch Fix

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a year ago
ML Knowledge
a year ago
For neural networks, is the vanishing gradient concern more frequent towards the network's input or its output?
Data Scientist

Zalora

Skyscanner Logo

Skyscanner

Zomato Logo

Zomato

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a year ago
ML Knowledge
a year ago
How do bagging and boosting techniques differ from each other in machine learning, and in what ways do they impact the bias and variance of models?
Data Scientist

Zalora

Airtable Logo

Airtable

Meta Logo

Meta

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a year ago
Coding
a year ago
Could you create a function that employs binary search to locate the maximum integer in a list?
Data ScientistMachine Learning Engineer

Zalora

Amazon Web Services Logo

Amazon Web Services

N26 Logo

N26

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a year ago

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

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