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Re^3: polygon buffering algorithms

by Solo (Deacon)
on Feb 08, 2005 at 17:01 UTC ( [id://429129]=note: print w/replies, xml ) Need Help??


in reply to Re^2: polygon buffering algorithms
in thread polygon buffering algorithms

accuracy is not as important as reliability

I understand the difference between accuracy and precision, but could you please explain what you mean by accuracy vs. reliability? (Google is not as helpful here.)

Update: added links to definition

--Solo

--
You said you wanted to be around when I made a mistake; well, this could be it, sweetheart.

Replies are listed 'Best First'.
Re^4: polygon buffering algorithms
by punkish (Priest) on Feb 08, 2005 at 17:06 UTC
    accuracy vs. reliability
    Maybe I've gotten myself in hot water here. For me, accuracy refers to the closeness to the truth, for example as reflected by the number of digits after the decimal. More the digits after the decimal, the closer to the truth you might be. Reliability refers to consistency. It may not be very accurate, but it may be consistently good enough that you can make a decision based on it. For example, saying "go right at the split in the road" is as reliable as it can get, but has no concept of accuracy of measurement in it.

    But then, I hope no other monk pounces on me for saying the above as I may be spewing more than I have chewed.

    (for that matter, I myself don't understand the difference between 'accuracy' and 'precision', but that is neither here nor there for the problem in question).

      I added links above for correct definitions of accuracy and precision.

      So, you're saying it's ok if the algorithm's output is wrong, as long as it's consistently wrong for the same inputs?

        So, you're saying it's ok if the algorithm's output is wrong, as long as it's consistently wrong for the same inputs?

        Put that way, no, that is not what I am saying (although I knew it would come and bite me in my butt ;-)

        Otoh, I might be saying that _if_ the output is wrong, it would be nice to know that it is, and to know by how much it is.

        Other than that, of course, I would like it to be good, fast, cheap, free, in Perl, accurate, precise, reliable, concise, and free of carbs.

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