4 papers
Practical Boundary Degeneracy and Reverse-Martingale Limits in Sequential Binary Models
Yuan-chin Ivan Chang
A run of all failures, a run of all successes, or complete separation in a logistic regression each tempts the analyst to declare a probability of exactly zero or one. The central…
Additive Logistic Models as Interpretable Likelihood-Ratio Scores for AUC-Based Classification
Yuan-chin Ivan Chang
Classification is a common statistical task in many areas. In order to ameliorate the performance of the existing methods, there are always some new classification procedures propo…
Optimal Stopping in Sequential Clinical Prediction
Hui-Mean Foo, Yuan-chin Ivan Chang
Most clinical prediction studies are developed from retrospective cohorts and reported as if all patient information were observed at once. In practice, clinicians face a more cons…
A Survey: Potential Dimensionality Reduction Methods
Yuan-chin Ivan Chang
Dimensionality reduction is a fundamental technique in machine learning and data analysis, enabling efficient representation and visualization of high-dimensional data. This paper…