Academy of Mathematics and Systems Science, CAS
Colloquia & Seminars

Speaker:	Prof. Ning Hao，The University of Arizona
Inviter:	谢和虎研究员
Title:	A super scalable algorithm for short segment detection
Time & Venue:	2019.6.10 15:00-16:00 Z305
Abstract:	In many applications such as copy number variant detection, the goal is to identify short segments on which the observations have different means or medians from the background. Those segments are usually short and hidden in a long sequence, and hence are very challenging to find. In this talk, we will introduce a super scalable short segment detection algorithm. This nonparametric method clusters the locations where the observations exceed a threshold for segment detection. It is computationally efficient and does not rely on Gaussian noise assumption. Moreover, we propose a framework to assign significance levels for detected segments. We demonstrate the advantages of our proposed method by theoretical, simulation, and real data studies. This talk is based on a work joint with Yue Niu, Feifei Xiao and Heping Zhang.