Search Results for author: Yuan-Chin Ivan Chang

Found 5 papers, 0 papers with code

Determination of class-specific variables in nonparametric multiple-class classification

no code implementations7 May 2022 Wan-Ping Nicole Chen, Yuan-Chin Ivan Chang

In this paper, we propose a probability-based nonparametric multiple-class classification method, and integrate it with the ability of identifying high impact variables for individual class such that we can have more information about its classification rule and the character of each class as well.

Classification Decision Making +1

Active learning for binary classification with variable selection

no code implementations29 Jan 2019 Zhanfeng Wang, Yumi Kwon, Yuan-Chin Ivan Chang

For a classification problem, this means that the essential label information may not be readily obtainable, in the data set in hands, and an extra labeling procedure is required such that we can have enough label information to be used for constructing a classification model.

Active Learning Binary Classification +3

Fast Multi-Class Probabilistic Classifier by Sparse Non-parametric Density Estimation

no code implementations4 Jan 2019 Wan-Ping Nicole Chen, Yuan-Chin Ivan Chang

Variable selection is a common way to increase the ability of model interpretation and is popularly used with some parametric classification models.

Classification Density Estimation +2

Distributed sequential method for analyzing massive data

no code implementations22 Dec 2018 Zhanfeng Wang, Yuan-Chin Ivan Chang

To analyse a very large data set containing lengthy variables, we adopt a sequential estimation idea and propose a parallel divide-and-conquer method.

Greedy Active Learning Algorithm for Logistic Regression Models

no code implementations1 Feb 2018 Hsiang-Ling Hsu, Yuan-Chin Ivan Chang, Ray-Bing Chen

Our numerical results show that the proposed procedure has competitive performance, with smaller training size and a more compact model, comparing with that of the classifier trained with all variables and a full data set.

Active Learning Binary Classification +4

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