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ML CaseML Knowledge

2 years ago

Walk me through a Monte Carlo simulation to estimate Pi.

Data ScientistMachine Learning Engineer

Walmart

Grafana Labs

Chewy

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2 years ago

ML Knowledge

2 years ago

How does the assumption of error in linear regression influence the accuracy of our models, and what does it entail?

Data Scientist

Walmart

DeliveryHero

Datadog

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2 years ago

ML System Design

2 years ago

How would you go about designing the architecture for Bing's image search?

Data Scientist

Walmart

Transferwise

Etsy

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2 years ago

Coding

2 years ago

How can a Python function be written to apply a markdown percentage to certain streams of songs?

Data Scientist

Walmart

ZocDoc

Avito

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2 years ago

SQL

2 years ago

What are SQL window functions? Explain aggregation and joins.

Data Scientist

Walmart

Stitch Fix

Quantcast

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2 years ago

Behavioral

2 years ago

I am interested in hearing about a process you learned or better developed at your previous job that you feel will be useful at your future position at Walmart

Data Scientist

Walmart

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2 years ago

ML Knowledge

3 years ago

In data science, precision and recall are considered important metrics for model evaluation. Can you explain the concept of these two metrics and discuss some factors that can affect their reliability?

Data Scientist

Walmart

Benchling

Broadcom

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3 years ago

Behavioral

3 years ago

Please tell me about a time when you were challenged while in public.

Data ScientistData Science ManagerML Engineering ManagerData Engineering Manager

Walmart

Orange

Nubank

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3 years ago

ML Knowledge

3 years ago

What role does dimensionality reduction play in Machine Learning, and what approaches do practitioners typically take when working with high-dimensional data?

Data Scientist

Walmart

Viber

Mixpanel

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3 years ago

ML Knowledge

3 years ago

How do you make sure that your anomaly detection system can handle data sets with a wide variety of variables and dimensions?

Data Scientist

Walmart

Teradata

ASML

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3 years ago

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