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ML Knowledge
10 months ago
What can you tell me about the role of cross-validation in machine learning, and why is it necessary?
Machine Learning Engineer

Zoox

Meetup

AppDynamics

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10 months ago
ML Knowledge
a year ago
How might you utilize a confusion matrix and an ROC curve in assessing the performance of a predictive model, and what distinguishes them?
Machine Learning EngineerData Scientist

Zoox

Udacity Logo

Udacity

Splunk Logo

Splunk

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a year ago
System Design
a year ago
Create a real-time system for processing natural language queries.
Machine Learning Engineer

Zoox

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a year ago
Coding
a year ago

Best Time to Buy and Sell Stock

You have access to an array where each element represents the price of a specific stock on a given day. Your objective is to maximize profit by selecting one day to purchase the stock and a different, future day to sell it. Determine and return the maximum profit achievable. If it's impossible to generate a profit, return 0.

Input: prices = [9,3,8,2,7,5]

Output: 5

Explanation: Purchase on day 2 (price = 3) and sell on day 5 (price = 7) for a profit of 7 - 3 = 4.

Machine Learning Engineer

Zoox

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a year ago
Coding
a year ago
Could you produce 1000 data points in R with a normal distribution, defined mean, and variance, analyze the dataset summary, and plot its density? Also, show how to do this in a Python environment on Codility.
Machine Learning Engineer

Zoox

Peek Logo

Peek

Bloomberg Logo

Bloomberg

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a year ago
Coding
a year ago
How can a binary tree be reconstructed from its given preorder and inorder traversal results?
Machine Learning Engineer

Zoox

Rovio Logo

Rovio

Hewlett Packard Logo

Hewlett Packard

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a year ago
ML Knowledge
a year ago
How do the K-means algorithm and the Expectation-Maximization (EM) algorithm contrast with each other?
Machine Learning Engineer

Zoox

ZocDoc Logo

ZocDoc

Audible Logo

Audible

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a year ago
System Design
a year ago
Build a distributed system for managing data versioning.
Machine Learning Engineer

Zoox

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a year ago
ML Knowledge
a year ago
What machine learning model have you found intriguing, and can you describe its operation?
Machine Learning EngineerData Scientist

Zoox

BuzzFeed Logo

BuzzFeed

Andela Logo

Andela

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a year ago
System Design
a year ago
Design a language translation platform that works in real-time.
Machine Learning Engineer

Zoox

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a year ago

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