4 papers
Adaptive Change Point Inference for High Dimensional Time Series with Temporal Dependence
Xiaoyi Wang, Jixuan Liu, Long Feng
This paper investigates change point inference in high-dimensional time series. We begin by introducing a max--norm based test procedure, which demonstrates strong performance…
Tensor Elliptical Graphic Model
Jixuan Liu, Zhengke Lu, Le Zhou +2
We address the problem of robust estimation of sparse high dimensional tensor elliptical graphical model. Most of the research focus on tensor graphical model under normality. To e…
Spatial-Sign based High dimensional Change Point Inference
Jixuan Liu, Long Feng, Liuhua Peng +1
High-dimensional changepoint inference, adaptable to diverse alternative scenarios, has attracted significant attention in recent years. In this paper, we propose an adaptive and r…
TUNE: Algorithm-Agnostic Inference after Changepoint Detection
Yinxu Jia, Jixuan Liu, Guanghui Wang +2
In multiple changepoint analysis, assessing the uncertainty of detected changepoints is crucial for enhancing detection reliability -- a topic that has garnered significant attenti…