{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,6,18]],"date-time":"2025-06-18T06:26:59Z","timestamp":1750228019991},"reference-count":16,"publisher":"Springer Science and Business Media LLC","issue":"3","license":[{"start":{"date-parts":[[2020,5,6]],"date-time":"2020-05-06T00:00:00Z","timestamp":1588723200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2020,5,6]],"date-time":"2020-05-06T00:00:00Z","timestamp":1588723200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"name":"Vienna University of Economics and Business"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Comput Stat"],"published-print":{"date-parts":[[2021,9]]},"abstract":"Abstract<\/jats:title>First-exit problems for the Brownian motion (W<\/jats:italic>(t<\/jats:italic>)) or general diffusion processes, have important applications. Given a boundary b<\/jats:italic>(t<\/jats:italic>), the distribution of the first-exit time $$\\tau $$<\/jats:tex-math>\n \u03c4<\/mml:mi>\n <\/mml:math><\/jats:alternatives><\/jats:inline-formula> has to be computed, in most cases numerically. In the inverse first-passage-time problems, the distribution of $$\\tau $$<\/jats:tex-math>\n \u03c4<\/mml:mi>\n <\/mml:math><\/jats:alternatives><\/jats:inline-formula> is given and the boundary b<\/jats:italic> has to be found. The boundary and the density of $$\\tau $$<\/jats:tex-math>\n \u03c4<\/mml:mi>\n <\/mml:math><\/jats:alternatives><\/jats:inline-formula> satisfy a Volterra integral equation. Again numerical methods approximate the solution b<\/jats:italic> for given distribution of $$\\tau $$<\/jats:tex-math>\n \u03c4<\/mml:mi>\n <\/mml:math><\/jats:alternatives><\/jats:inline-formula>. We propose and analyze estimators of b<\/jats:italic> for a given sample $$\\tau _1,\\ldots ,\\tau _n$$<\/jats:tex-math>\n \n \n \u03c4<\/mml:mi>\n 1<\/mml:mn>\n <\/mml:msub>\n ,<\/mml:mo>\n \u2026<\/mml:mo>\n ,<\/mml:mo>\n \n \u03c4<\/mml:mi>\n n<\/mml:mi>\n <\/mml:msub>\n <\/mml:mrow>\n <\/mml:math><\/jats:alternatives><\/jats:inline-formula> of first-exit times. The first estimator, the empirical estimator, is the solution of a stochastic version of the Volterra equation. We prove that it is strongly consistent and we derive an upper bound for its asymptotics convergence rate. Finally, this estimator is compared to a Bayesian estimator, which is based on an approximate likelihood function. Monte Carlo experiments suggests that the empirical estimator is simple, computationally manageable and outperforms the alternative procedure considered in this paper.\n<\/jats:p>","DOI":"10.1007\/s00180-020-00989-x","type":"journal-article","created":{"date-parts":[[2020,5,6]],"date-time":"2020-05-06T10:03:12Z","timestamp":1588759392000},"page":"1809-1820","update-policy":"http:\/\/dx.doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["On the empirical estimator of the boundary in inverse first-exit problems"],"prefix":"10.1007","volume":"36","author":[{"given":"Sercan","family":"G\u00fcr","sequence":"first","affiliation":[]},{"given":"Klaus","family":"P\u00f6tzelberger","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2020,5,6]]},"reference":[{"key":"989_CR1","first-page":"1","volume":"12","author":"M Abundo","year":"2015","unstructured":"Abundo M (2015) An overview on inverse first-passage-time problems for one-dimensional diffusion processes. 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