math - calculating the confidence intervals between two approaches -


i'm trying has mentioned in "vsumm" article.
there 5 approaches want compare results mine. compare of them in table calculating cus(a) i.e mean accuracy rate , cus(e) i.e mean error rate each of them.(it's video summarization problem , each approaches has got summeries 50 videos. summeries has been compared 5 user summeries , cus(a) , cus(e) calculated these reults)
should calculate confidence intervals(with confidence of 98%) of each of approaches mine
surf web , find long articles confidence intervals did not understand thing!?
should do?

finally find answer:
calculating confidence intervals between approach , other approaches should have results of algorithm , approaches sure. can calculate mean of these data , standard deviation. use confidence intervals formula:
(amean-bmean) +/- z(1-a/2)*sqrt((stda^2/n1)+(stdb^2/n2) stda standard deviation of n1 number of data in first group amean=the mean value of first group, i.e mean of results of first approach


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