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11/17/2022
A Generalized Latent Factor Model Approach to Mixed-data Matrix Completion with Entrywise Consistency
Matrix completion is a class of machine learning methods that concerns t...
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06/16/2022
Optimal Parallel Sequential Change Detection under Generalized Performance Measures
This paper considers the detection of change points in parallel data str...
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08/19/2021
Item Response Theory – A Statistical Framework for Educational and Psychological Measurement
Item response theory (IRT) has become one of the most popular statistica...
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10/05/2020
Determining the Number of Factors in High-dimensional Generalised Latent Factor Models
As a generalisation of the classical linear factor model, generalised la...
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08/23/2020
Item Quality Control in Educational Testing: Change Point Model, Compound Risk, and Sequential Detection
In standardized educational testing, test items are reused in multiple t...
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09/12/2019
Compound Sequential Change Point Detection in Multiple Data Streams
We consider sequential change point detection in multiple data streams, ...
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07/19/2019
A Note on Exploratory Item Factor Analysis by Singular Value Decomposition
In this note, we revisit a singular value decomposition (SVD) based algo...
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05/21/2019
Asymptotic Analysis for Extreme Eigenvalues of Principal Minors of Random Matrices
Consider a standard white Wishart matrix with parameters n and p. Motiva...
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10/12/2018
Spherical Regression under Mismatch Corruption with Application to Automated Knowledge Translation
Motivated by a series of applications in data integration, language tran...
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12/24/2017
Structured Latent Factor Analysis for Large-scale Data: Identifiability, Estimability, and Their Implications
Latent factor models are widely used to measure unobserved latent traits...
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12/19/2017