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Coding

3 years ago

Given preorder and inorder traversal of a tree, construct the binary tree.

Data Scientist

OpenDoor

eBay

Samsung

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3 years ago

ML Knowledge

3 years ago

What do you think about the usefulness of Time Series Forecasting in predicting trends and patterns in data over a period of time?

Data Scientist

OpenDoor

Careem

GoCardless

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3 years ago

Behavioral

3 years ago

How do you distinguish yourself from others?

Data ScientistML Engineering ManagerData Science ManagerData Engineering Manager

OpenDoor

OfferUp

eToro

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3 years ago

ML Knowledge

3 years ago

How does gradient boost work in the field of machine learning?

Data Scientist

OpenDoor

Hitachi

Grubhub

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3 years ago

Behavioral

3 years ago

The most memorable challenge you've faced in the past?

Data ScientistEngineering ManagerUX DesignerUX Researcher

OpenDoor

Rivigo

Panasonic

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3 years ago

Analytics Case

3 years ago

Characters A, B, C, D are linked such that A is linked to B, A is linked to C, C is linked to D, and B is linked to D. Can these four characters be separated into two sets such that the graph is bipartite?

Data Scientist

OpenDoor

Postmates

HubSpot

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3 years ago

Product Case

3 years ago

What metrics would you want to use to measure user engagement in a new video chat feature?

Data Scientist

OpenDoor

Yandex

Blend

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3 years ago

Behavioral

3 years ago

Describe a time when you disagreed with your manager.

Data ScientistData Engineering ManagerEngineering ManagerUX Designer

OpenDoor

Pepperfry

Huawei

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3 years ago

Analytics Case

3 years ago

Can you describe your process for evaluating the magnitude of fake news on Facebook and its impact on public discourse?

Data Scientist

OpenDoor

Wish

Amazon

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3 years ago

Statistics

3 years ago

What are some common methods for detecting and dealing with multicollinearity?

Data Scientist

OpenDoor

Stitch Fix

NetEase

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3 years ago

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

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