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Estimation of the probability a Brownian bridge crosses a concave boundary

Posted on:2011-03-07Degree:M.AType:Thesis
University:East Carolina UniversityCandidate:Yang, FanFull Text:PDF
GTID:2440390002955184Subject:Statistics
Abstract/Summary:
This thesis studies a new method to estimate the probability that a Brownian bridge crosses a concave boundary. We show that a Brownian bridge crosses a concave boundary if and only if its least concave majorant crosses said concave boundary. As such, we can equivalently simulate the least concave majorant of a Brownian bridge in order to estimate the probability that a Brownian bridge crosses a concave boundary.;We apply these theoretical results to the problem of estimating joint confidence intervals for a true CDF at every point. We compare this method to a traditional method for estimating joint confidence intervals for the true CDF at every point which is based upon the limiting distribution of what is often called the Kolmogorov-Smirnov distance, the sup-norm distance between the empirical and true CDFs. We indicate the disadvantages of the traditional approach and demonstrate how our approach addresses these weaknesses.
Keywords/Search Tags:Brownian bridge crosses, Concave boundary, True CDF, Probability, Estimating joint confidence intervals
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