| 文本分类器性能评估指标 |
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| 引用本文： | 宋枫溪,高林.文本分类器性能评估指标[J].计算机工程,2004,30(13):107-109,127. |
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| 作者姓名： | 宋枫溪 高林 |
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| 作者单位： | 1. 炮兵学院1系,合肥,230031;南京理工大学计算机系,南京,210094
2. 南京理工大学计算机系,南京,210094 |
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| 摘 要： | 讨论了用传统性能评估指标(精度和错误率)评估文本分类器时面临的困难，分析了目前几种常用的文本分类器性能评估指标：查全率-查准率曲线、AUROC、Fi值以及BEP值的优点与不足，并提出了两种新的可用于文本分类器的性能评估指标。
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| 关 键 词： | 文本分类 性能评估 BEP值 ROC曲线 |
| 文章编号： | 1000-3428(2004)13-0107-03 |
Performance Evaluation Metric for Text Classifiers |
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| SONG Fengxi,GAO Lin.Performance Evaluation Metric for Text Classifiers[J].Computer Engineering,2004,30(13):107-109,127. |
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| Authors: | SONG Fengxi GAO Lin |
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| Affiliation: | SONG Fengxi,GAO Lin 1,2 2 |
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| Abstract: | Afterdiscussing on the deficiency of accuracy and error rate as performance metrics for text categorization problems, this paper analyzes the strength and shortcoming of recall-precision curve, area under the ROC curve, F1value and break-even point, which are the most prevailing performance metrics for text classifiers, and proposes two kinds of new performance metric for text classifier. |
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| Keywords: | Text categorization Performance evaluation Breaks-even point Receiver operating characteristic curve |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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