25 citations · 88 across the 20 of their papers we have counts for
6 papers · 1 filter
Structured Latent Factor Analysis for Large-scale Data: Identifiability, Estimability, and Their Implications
Yunxiao Chen, Xiaoou Li, Siliang Zhang
Latent factor models are widely used to measure unobserved latent traits in social and behavioral sciences, including psychology, education, and marketing. When used in a confirmat…
Joint Maximum Likelihood Estimation for High-dimensional Exploratory Item Response Analysis
Yunxiao Chen, Xiaoou Li, Siliang Zhang
Joint maximum likelihood (JML) estimation is one of the earliest approaches to fitting item response theory (IRT) models. This procedure treats both the item and person parameters…
Asymptotically Optimal Sequential Design for Rank Aggregation
Xi Chen, Yunxiao Chen, Xiaoou Li
A sequential design problem for rank aggregation is commonly encountered in psychology, politics, marketing, sports, etc. In this problem, a decision maker is responsible for ranki…
Uniformly Efficient Simulation for Extremes of Gaussian Random Fields
Xiaoou Li, Gongjun Xu
This paper considers the problem of simultaneously estimating rare-event probabilities for a class of Gaussian random fields. A conventional rare-event simulation method is usually…
Optimal Stopping and Worker Selection in Crowdsourcing: an Adaptive Sequential Probability Ratio Test Framework
Xiaoou Li, Yunxiao Chen, Xi Chen +2
In this paper, we aim at solving a class of multiple testing problems under the Bayesian sequential decision framework. Our motivating application comes from binary labeling tasks…
Moderate Deviation for Random Elliptic PDEs with Small Noise
Xiaoou Li, Jingchen Liu, Jianfeng Lu +1
Partial differential equations with random inputs have become popular models to characterize physical systems with uncertainty coming from, e.g., imprecise measurement and intrinsi…