Computer support specialist 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 Less

US Patent and Trademark Office

How do you think you would respond if, initially, you worked hard on a task and yet your superiors repeatedly asked you to redo and rewrite, would you be frustrated by this?

83 Answers

On the same boat. I haven't heard back from Dallas neither. Did your status on USAjobs change with your tentative offer? Less

I neither declined nor accepted the offer, as I have not heard back from USPTO. Hope to go back into the review and change that setting on the post. I understand the 10 week cycle and the expectation of getting back to candidates within two weeks, but I was specifically told otherwise for this round. And I would accept this job if I'm selected. Less

Congrats on the interview. I had an interview on 12/7 too, for ChemEng in Alexandria. SPE I spoke with had said that I would hear back in two weeks; not sure if it's different depending on the job announcement/TC you applied to. Anyone else interview this week in Alexandria? Less

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Dollar General

Why did I want to work for the company.

25 Answers

And I like to helping people

Because I have heard positive things about this company and would like to contribute to it. Less

Because I have bills

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Tata Consultancy Services

My strengths and weaknesses

9 Answers

My strength is Positive attitude and my weakness is i feel uncomfortable until finish my work Less

My strength is my confidence and my weakness is feel uncomfortable until finish my work Less

My strength is positive attitude and thinking and weakness is when I feel lonleyness Less

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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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"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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Reliance Industries

this is moet important that the company must take some decesion to gave chance to talented student.

7 Answers

compony can gave chance

First of all it's most not Moet if you are looking for a talented people there are about 1.3 billion people living in India who are smart and better to think and give different ideas and no mention hard working Less


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How would you code up a custom rectangle detector?

5 Answers

Hi... Could you plz explain what is a custom rectangle detector...I hav my interview with Amazon on monday ... plz help Less

First 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. Less

I would scan the image with a basic edge detection mask. Then I would scan to count the number of lines, keeping track of end points in pairs. Cases such as curves would also be found in this step and returned as not a rectangle. An analysis of basic trig with the points could then be performed in order to determine if the points form a rectangle. Once a rectangle is confirmed then you could use those points to display on the image the recognized rectangle. Or do whatever the reason for finding the rectangle was. Less

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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:

i believe in work not in words

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