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ML Knowledge
6 months ago
Why tf-idf is considered better than other techniques to determine the relevance of a document based on search queries?
Data Scientist

Walmart

Faire

Ola

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6 months ago
ML Knowledge
6 months ago
Can you talk about the complexities involved in training deep neural networks with an extensive number of layers?
Data Scientist

Walmart

Google Logo

Google

Avito Logo

Avito

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6 months ago
Behavioral
6 months ago
Why do you feel Walmart is the right fit for you?
Data Scientist

Walmart

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6 months ago
Coding
6 months ago
Implement a function that returns the nth Fibonacci number using recursion.
Data Scientist

Walmart

EPAM Systems Logo

EPAM Systems

SwiftKey Logo

SwiftKey

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6 months ago
Statistics
6 months ago
How would you define type I and type II errors in the realm hypothesis testing? And which mistake do you think is the more serious of the two?
Data Scientist

Walmart

Scribd Logo

Scribd

DataRobot Logo

DataRobot

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6 months ago
ML Knowledge
7 months ago
How do the objectives of k-means and k-nearest neighbors differ in data analysis?
Data Scientist

Walmart

Mozilla Logo

Mozilla

Palantir Technologies Logo

Palantir Technologies

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7 months ago
Behavioral
7 months ago
Why do you want to join Walmart?
Data Scientist

Walmart

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7 months ago
Behavioral
7 months ago
Tell me about a time you were proved wrong
Data ScientistEngineering ManagerUX DesignerUX Researcher

Walmart

nCino Logo

nCino

Grab Logo

Grab

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7 months ago
SQL
7 months ago
What is the average amount of transactions for customers who have recently made more than 10 purchases in the last 90 days?
Data Scientist

Walmart

Deliveroo Logo

Deliveroo

Patreon Logo

Patreon

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7 months ago
SQL
7 months ago
Let's say we have 6 columns of data. How would you compare the data of the first 3 columns with those of the last 3?
Data Scientist

Walmart

Brex Logo

Brex

Whatsapp Logo

Whatsapp

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7 months ago

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

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