{ "id": "1705.06881", "version": "v1", "published": "2017-05-19T07:44:57.000Z", "updated": "2017-05-19T07:44:57.000Z", "title": "Exact simulation of the first-passage time of diffusions", "authors": [ "Samuel Herrmann", "Cristina Zucca" ], "categories": [ "math.PR" ], "abstract": "Since diffusion processes arise in so many different fields, efficient tech-nics for the simulation of sample paths, like discretization schemes, represent crucial tools in applied probability. Such methods permit to obtain approximations of the first-passage times as a by-product. For efficiency reasons, it is particularly challenging to simulate directly this hitting time by avoiding to construct the whole paths. In the Brownian case, the distribution of the first-passage time is explicitly known and can be easily used for simulation purposes. The authors introduce a new rejection sampling algorithm which permits to perform an exact simulation of the first-passage time for general one-dimensional diffusion processes. The efficiency of the method, which is essentially based on Girsanov's transformation , is described through theoretical results and numerical examples.", "revisions": [ { "version": "v1", "updated": "2017-05-19T07:44:57.000Z" } ], "analyses": { "keywords": [ "first-passage time", "exact simulation", "general one-dimensional diffusion processes", "represent crucial tools", "diffusion processes arise" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }