Computer systems analyst Interview Questions

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Gauss Surgical
Computer Vision/Machine Learning Software Engineer was asked...June 17, 2014

Why does one use MSE as a measure of quality. What is the scientific/mathematical reason for the same?

3 Answers

Mean-Square error is an error metric for measuring image or video quality it is popular video and image quality metric because the analysis and mathematics is easier with this L2-Norm metric. Most video and image quality experts will agree that MSE is not a very good measure of perceptual video and image quality. Less

The mathematical reasoning behind the MSE is as follows: For any real applications, noise in the readings or the labels is inevitable. We generally assume this noise follows Gaussian distribution and this holds perfectly well for most of the real applications. Considering 'e' follows gaussian distribution in y=f(x) + e and calculating the MLE, we get MSE which is also L2 distance. Note: Assuming some other noise distribution may lead to other MLE estimate which will not be MSE. Less

MSE is used for understanding the weight of the errors in any model. This helps us understand model accuracy in a way that is helpful when choosing different types of models. Check out more answers on InterviewQuery.com Less

How many computer desktop you can assemble in 1 day with out an Operating System?

8 Answers

30 to 50 unit no operating system if hardware is complete and ready to assemble

20 or 30

20 or 30

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SpaceX

"What is the size of an integer on a 32-bit system?"

8 Answers

2^32= 4 billionish ?

4 byte

4 bytes

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Maruti Suzuki

Oldest job expected

7 Answers

I am fresher

I am fresher

My oldest company is the best company but my goal is growth

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Xoriant

How would you scale your services?

5 Answers

12k

I would scale my services with the help of my husband .

I would scale my services I would convert education knowledge to technical knowledge sirthis is my first priority Less

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NASA

What thing about yourself other than experience and grades would make you a better candidate than the other people?

4 Answers

The two answers above suck. Don't say them if you get an interview.

This looks so good: bit.ly/faang100

i believe in work not in words

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Matterport

Given a 2D grid consisting of links and vacancies represented by a 2D array and assume you can move from either down (j,k)->(j+1,k) or to the right (j,k)->(j,k+1) unless there is a vacancy

4 Answers

Use recursion

No well defined. Is the problem to find the shortest path to the right side or bottom or shortest path to the a particular location or to connect the most locations or what? Less

given rectangle set (overlapped or not), calculate the overlapped areas. e.g., rect{ point upperleft; width, height; } Less

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Disney Parks

what is your best asset

4 Answers

organizational skills

By ability to think on my feet in a fast paced environment

Team player

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US Department of Defense

If ever did anything to harm U.S or not?

4 Answers

Not

No

No

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Google

How do cell phones work?

4 Answers

Today generation very fast and all are available on website, application so that's why phone works popular. There more popular on Google account in mobile accessing and all data metadata stored in Google cloud that why phone works. Less

Your the experts!! You'll know it better than me.

How would you sort a list of numbers?

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