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Contribution Details

Type Journal Article
Scope Discipline-based scholarship
Title Quantile Estimation with Adaptive Importance Sampling
Organization Unit
Authors
  • Markus Leippold
  • Daniel Egloff
Item Subtype Original Work
Refereed Yes
Status Published in final form
Language
  • English
Journal Title Annals of Statistics
Publisher Institute of Mathematical Statistics
Geographical Reach international
ISSN 0090-5364
Volume 38
Number 2
Page Range 1244 - 1278
Date 2010
Abstract Text We introduce new quantile estimators with adaptive importance sampling. The adaptive estimators are based on weighted samples that are neither independent nor identically distributed. Using a new law of iterated logarithm for martingales, we prove the convergence of the adaptive quantile estimators for general distributions with nonunique quantiles, thereby extending the work of Feldman and Tucker. We illustrate the algorithm with an example from credit portfolio risk analysis.
Digital Object Identifier 10.1214/09-AOS745
Other Identification Number merlin-id:450
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