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ML KnowledgeStatistics

a year ago

Explain Principal Component Analysis. What are its disadvantages?

Data ScientistMachine Learning Engineer

Optimizely

Shutterstock

Improbable

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a year ago

ML Knowledge

a year ago

Can you elucidate the significance of log loss in model performance metrics?

Data ScientistMachine Learning Engineer

Optimizely

Datadog

DocuSign

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a year ago

Coding

a year ago

Write a function to find the maximum element in a list of integers using binary search.

Data ScientistMachine Learning Engineer

Optimizely

Rubrik

Disney

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a year ago

Statistics

a year ago

Please show how to create a Bernoulli distributed matrix in Python, with each matrix element divided by the column sum.

Data Scientist

Optimizely

Patreon

Google

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a year ago

SQL

a year ago

How would you optimize a slow-running SQL query?

Data Scientist

Optimizely

Twitch

Grafana Labs

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a year ago

Behavioral

a year ago

In what way would you improve Optimizely?

Data Scientist

Optimizely

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a year ago

Statistics

a year ago

How would you explain the concept of regression to a non-statistical professional?

Data Scientist

Optimizely

Snowflake

Dollar Shave Club

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a year ago

Behavioral

a year ago

When have you made a decision that didn't turn out the way you expected? What did you learn from that experience?

Data ScientistData Science ManagerEngineering ManagerUX Designer

Optimizely

Trackmaven

Okta

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a year ago

ML CaseML Knowledge

a year ago

Is the R-square measure sufficient for linear regression analysis? What if the r-square value is low, does this mean that the fit is not good enough?

Data Scientist

Optimizely

Bloomberg

HubSpot

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a year ago

Behavioral

a year ago

Describe a time when you assisted a colleague with his work. What happened as a result?

Data ScientistFull Stack Software EngineerProduction EngineerFrontend Engineer

Optimizely

Palantir Technologies

Rebel Foods

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a year ago

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

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