52 citations · 60 across the 6 of their papers we have counts for
6 papers
Distribution-Free Multisample Test Based on Optimal Matching with Applications to Single Cell Genomics
Divyansh Agarwal, Somabha Mukherjee, Bhaswar Bikram Bhattacharya +1
In this paper we propose a nonparametric graphical test based on optimal matching, for assessing the equality of multiple unknown multivariate probability distributions. Our proced…
Scanning a Poisson Random Field for Local Signals
Nancy R. Zhang, Benjamin Yakir, Charlie L. Xia +1
The detection of local genomic signals using high-throughput DNA sequencing data can be cast as a problem of scanning a Poisson random field for local changes in the rate of the pr…
Graph-Based Change-Point Detection
Hao Chen, Nancy Zhang
We consider the testing and estimation of change-points -- locations where the distribution abruptly changes -- in a data sequence. A new approach, based on scan statistics utilizi…
Graph-Based Tests for Two-Sample Comparisons of Categorical Data
Hao Chen, Nancy R. Zhang
We study the problem of two-sample comparison with categorical data when the contingency table is sparsely populated. In modern applications, the number of categories is often comp…
Change-point model on nonhomogeneous Poisson processes with application in copy number profiling by next-generation DNA sequencing
Jeremy J. Shen, Nancy R. Zhang
We propose a flexible change-point model for inhomogeneous Poisson Processes, which arise naturally from next-generation DNA sequencing, and derive score and generalized likelihood…
Importance Sampling of Word Patterns in DNA and Protein Sequences
Hock Peng Chan, Nancy R. Zhang, Louis H. Y. Chen
Monte Carlo methods can provide accurate p-value estimates of word counting test statistics and are easy to implement. They are especially attractive when an asymptotic theory is a…