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ML Knowledge
2 years ago
What does log loss indicate in predictive modeling?
Data ScientistMachine Learning Engineer

OpenDoor

Datadog

DocuSign

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2 years ago
SQL
2 years ago
Suppose we have a dataset of (date, duration) tuples. How would you filter by a specific time period and then generate summary statistics, including the average duration and rolling sum, for each date within that time period?
Data Scientist

OpenDoor

Samsara Logo

Samsara

GitLab Logo

GitLab

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2 years ago
Statistics
2 years ago
Assuming you are randomly drawing values each day from a normally distributed variable with a mean of 0 and a standard deviation of 1, what is the expected number of days it would take for you to draw a value greater than 2?
Data Scientist

OpenDoor

NVIDIA Logo

NVIDIA

Comcast Logo

Comcast

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2 years ago
ML Knowledge
2 years ago
What are the benefits and drawbacks of incorporating decision trees into a machine learning model?
Data Scientist

OpenDoor

Robinhood Logo

Robinhood

Audible Logo

Audible

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2 years ago
Behavioral
2 years ago
Give a brief description of your work experience
Data ScientistProgram ManagerFrontend EngineerFull Stack Software Engineer

OpenDoor

Epic Games Logo

Epic Games

New Relic Logo

New Relic

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2 years ago
ML Knowledge
2 years ago
How would you explain the difference between linear and logistic regression to a novice?
Data Scientist

OpenDoor

Robinhood Logo

Robinhood

WorldRemit Logo

WorldRemit

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2 years ago
ML Knowledge
2 years ago
Could you walk us through the benefits of using LSTM in machine learning and how it differs from other deep learning models? Additionally, can you share any experiences you've had working with LSTM?
Data Scientist

OpenDoor

Lyft Logo

Lyft

Brex Logo

Brex

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2 years ago
Coding
2 years ago
Write a code to generate independent and identically distributed (i.i.d.) draws from a given distribution X given that we only have access to a random number generator.
Data Scientist

OpenDoor

ClassPass Logo

ClassPass

HubSpot Logo

HubSpot

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2 years ago
SQL
2 years ago
How do you draft a SQL query to extract rows where the name field starts with 'H'?
Data Scientist

OpenDoor

American Express Logo

American Express

Zendesk Logo

Zendesk

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2 years ago
Behavioral
2 years ago
In the role of OpenDoor Data Scientist, what would be the biggest challenge you think you would face?
Data Scientist

OpenDoor

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2 years ago

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