7 papers · 1 filter
Anytime-Valid Distribution Shift Detection via Predictive Rank Martingales
Qi Kuang, Yin Xia
Many sequential distribution shift detectors update a growing reference set with incoming observations. After a change, this update contaminates the reference set with post-change…
Gaussian Differentially Private -values: Construction, Threshold Calibration, and Multiple Testing
Qi Kuang, Bowen Gang, Yin Xia
This paper develops a framework for differentially private -values under Gaussian differential privacy (-GDP). We characterize the canonical noise mechanism, establishing tha…
SCORE: A Unified Framework for Overshoot Refund in Online FDR Control
Qi Kuang, Bowen Gang, Yin Xia
We propose a unified framework to enhance the power of online multiple hypothesis testing procedures based on -values. While -value-based methods offer robust online False Di…
Active Hypothesis Testing under Computational Budgets with Applications to GWAS and LLM
Qi Kuang, Bowen Gang, Yin Xia
In large-scale hypothesis testing, computing exact -values or -values is often resource-intensive, creating a need for budget-aware inferential methods. We propose a general…
Data-light Uncertainty Set Merging with Admissibility
Shenghao Qin, Jianliang He, Qi Kuang +2
This article introduces a Synthetics, Aggregation, and Test inversion (SAT) approach for merging diverse and potentially dependent uncertainty sets into a single unified set. The p…
Alteration Detection of Tensor Dependence Structure via Sparsity-Exploited Reranking Algorithm
Li Ma, Shenghao Qin, Yin Xia
Tensor-valued data arise frequently from a wide variety of scientific applications, and many among them can be translated into an alteration detection problem of tensor dependence…