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What role does collaborative filtering play in machine learning algorithms?

Siemens

Expedia

McAfee

2 years ago

ML Knowledge

Could you differentiate between bagging and boosting, and how they affect bias and variance in supervised learning?

Siemens

Benchling

Soundcloud

2 years ago

Coding

What's the best way to find the longest substring that doesn't contain any repeated characters?

Siemens

Productboard

Chegg

2 years ago

ML Knowledge

Could you give me some concrete examples of where overfitting and underfitting are problematic in real-world situations? What are the repercussions for the accuracy and performance of models?

Siemens

Fitbit

Zillow

2 years ago

Build a payment scheduling system for Siemens

Machine Learning EngineerSoftware EngineerTechnical Program ManagerSite Reliability Engineering Manager

Siemens

GameStop

Marqeta

2 years ago

Design a system for managing a distributed cron job scheduler.

Siemens

2 years ago

Coding

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.

Siemens

2 years ago

Design a system for real-time processing of user behavior data.

Siemens

2 years ago

Coding

Please provide the code for flipping a binary tree in the language of your choice.

Siemens

GoCardless

Tinder

2 years ago

Design a food delivery system like DoorDash.

Siemens