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Trinary tools for continuously valued binary classifiers

delete2022-06-01
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M
Michael Gleicher *
X
Xinyi Yu
Y
Yuheng Chen
DOI:10.1016/j.visinf.2022.04.002delete
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Abstract

Abstract

En 中文
Classification methods for binary (yes/no) tasks often produce a continuously valued score. Machine learning practitioners must perform model selection, calibration, discretization, performance assessment, tuning, and fairness assessment. Such tasks involve examining classifier results, typically using summary statistics and manual examination of details. In this paper, we provide an interactive visualization approach to support such continuously-valued classifier examination tasks. Our approach addresses the three phases of these tasks: calibration, operating point selection, and examination. We enhance standard views and introduce task-specific views so that they can be integrated into a multiview coordination (MVC) system. We build on an existing comparison-based approach, extending it to continuous classifiers by treating the continuous values as trinary (positive, unsure, negative) even if the classifier will not ultimately use the 3-way classification. We provide use cases that demonstrate how our approach enables machine learning practitioners to accomplish key tasks. (C) 2022 The Authors. Published by Elsevier B.V. on behalf of Zhejiang University and Zhejiang University Press Co. Ltd.
Keywords:
CLASSIFICATION
PERFORMANCE
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Journal

Visual Informatics cover
Visual Informatics
IF:
3.9
Papers:
237
Citations:
628

Organization

University of Wisconsin System cover
University of Wisconsin System
Scholars:
6.7W
Papers: 5.8W
Citations: 382