Computer Interview Questions | Glassdoor

# Computer Interview Questions

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Computer interview questions shared by candidates

## Top Interview Questions

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### Computer Vision/Machine Learning Software Engineer at Gauss Surgical was asked...

Jun 17, 2014
 Why does one use MSE as a measure of quality. What is the scientific/mathematical reason for the same?2 AnswersMean-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.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.

### Software Development Engineer (Computer Vision) at Amazon was asked...

Nov 22, 2012
 How would you code up a custom rectangle detector?4 AnswersI suggested something about matching intersecting hough lines.Hi... Could you plz explain what is a custom rectangle detector...I hav my interview with Amazon on monday ... plz helpBy a custom rectangle detector I mean how would you write your own function to detect rectangles. Your input would be the pixel data and your outputs would be something like the x,y locations of the rectangles.Show More ResponsesFirst of all, hough transformation can be used. just parametrize the representation for rectangle, but the parameter space is 4D. Second, line detection, followed by checking corner degree. In practice, I would use opencv's coutour fitting function to fit for quadrilateral, then check the angle. This works quite well.

### Computer Programming at Pyramid Solutions was asked...

Dec 16, 2010
 What is your favorite technical acronym?2 AnswersThis question just caught me very off-guard. I was not expecting a question like this at all, and thus had no semblance of an answer prepared.WYSIWYG

Dec 7, 2012
 What are the three different types of graphics card interfaces.2 AnswersI think this question is actually looking for VGA, DVI, or HDMI.AGP, PCI, PCI-E

### Computer Sales at Fry's Electronics was asked...

Jun 30, 2009
 What is SLI?2 AnswersIt stands for scanable like interface. its nvidias solution for connecting two or more gpus togetherEric, that's SCALABLE link interface ... but you got the gist of it right.

Apr 5, 2009
 If you could work in any department in the store, which would you choose?1 AnswerGeek Squad. They ask this question because, if there are open positions, they are supposed to offer you a job in that department. So, if you're not satisfied with the position you chose, let them know.

Apr 5, 2009
 Before the interviews, you will be given several acronyms to remember for the interviews.1 AnswerBest Buy thrives on acronyms. Every motto has a silly acronym. Be prepared to jog your memory.

### Computer Tech at Drive DeVilbiss Healthcare was asked...

Jul 5, 2012
 Can I use a wrench?1 AnswerI guess

### Computer Operator at Fiserv was asked...

Aug 22, 2012
 do you have a criminal history1 Answerno