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793 algorithm engineer interview questions shared by candidates

The English exam was easy, just a bunch of MCQs and two small paragraphs. The technical exam was 3 problem solving exam that must be finished in 3 hours. In my opinion it was an easy exam but I was a bit clumsy, so I didn't have the chance to even read the third question. So be prepare to be short in time.
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Algorithm Engineer

Interviewed at Valeo

3.8★
May 22, 2019

The English exam was easy, just a bunch of MCQs and two small paragraphs. The technical exam was 3 problem solving exam that must be finished in 3 hours. In my opinion it was an easy exam but I was a bit clumsy, so I didn't have the chance to even read the third question. So be prepare to be short in time.

Program was already %99 complete. The function took a sentence in the form of a string as input. It then gets the first character of the string and you need to return "digit" if the first character was a number, "Upper" if it's a capital, or "Lower" if it's a lowercase letter. They already had everything already coded besides the 3 conditions to check for in the if/else statements.
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Algorithm Engineer

Interviewed at Hudson River Trading

4.1★
Jan 6, 2021

Program was already %99 complete. The function took a sentence in the form of a string as input. It then gets the first character of the string and you need to return "digit" if the first character was a number, "Upper" if it's a capital, or "Lower" if it's a lowercase letter. They already had everything already coded besides the 3 conditions to check for in the if/else statements.

What is the difference between mean and median filter? If you apply a moving average filter to a signal what would happen to the signal standard deviation? What is the difference between logistic regression and a single layer single unit neural network? What is the difference with FIR and IIR?
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Algorithm Engineer

Interviewed at Apple

4.1★
Feb 25, 2018

What is the difference between mean and median filter? If you apply a moving average filter to a signal what would happen to the signal standard deviation? What is the difference between logistic regression and a single layer single unit neural network? What is the difference with FIR and IIR?

Given a binary image with a single unfilled circle, try to find an efficient algorithm for finding it's radius and center. Follow-up: now assume the circle has a small degree of noise, how would you estimate the radius and center efficiently?
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Cameras Algorithm Engineer

Interviewed at Intel Corporation

3.9★
Feb 12, 2017

Given a binary image with a single unfilled circle, try to find an efficient algorithm for finding it's radius and center. Follow-up: now assume the circle has a small degree of noise, how would you estimate the radius and center efficiently?

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