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B1412
Title: Nonparametric multiple change-point estimation for analyzing large Hi-C data matrices Authors:  Laure Sansonnet - AgroParisTech / INRA (France) [presenting]
Abstract: A novel nonparametric approach is proposed for estimating the location of block boundaries (change-points) of non-overlapping blocks in a random symmetric matrix which consists of random variables whose distribution changes from block to block. Our change-point location estimators are based on nonparametric homogeneity tests for matrices. We first provide some theoretical results for these tests. Then, we prove the consistency of our change-point location estimators. Some numerical experiments are also provided in order to support our claims. Finally, our approach is applied to Hi-C data which are used in molecular biology to study the influence of chromosomal conformation on cell function.