Linear Approximation of F-Measure for the Performance Evaluation of Classification Algorithms on Imbalanced Data Sets

研究成果: Article同行評審

1 引文 斯高帕斯(Scopus)

摘要

Accuracy is a popular measure for evaluating the performance of classification algorithms tested on ordinary data sets. When a data set is imbalanced, F-measure will be a better choice than accuracy for this purpose. Since F-measure is calculated as the harmonic mean of recall and precision, it is difficult to find the sampling distribution of F-measure for evaluating classification algorithms. Since the values of recall and precision are dependent, their joint distribution is assumed to follow a bivariate normal distribution in this study. When the evaluation method is k-fold cross validation, a linear approximation approach is proposed to derive the sampling distribution of F-measure. This approach is used to design methods for comparing the performance of two classification algorithms tested on single or multiple imbalanced data sets. The methods are tested on ten imbalanced data sets to demonstrate their effectiveness. The weight of recall provided by this linear approximation approach can help us to analyze the characteristics of classification algorithms.

原文English
頁(從 - 到)753-763
頁數11
期刊IEEE Transactions on Knowledge and Data Engineering
34
發行號2
DOIs
出版狀態Published - 2022 2月 1

All Science Journal Classification (ASJC) codes

  • 資訊系統
  • 電腦科學應用
  • 計算機理論與數學

指紋

深入研究「Linear Approximation of F-Measure for the Performance Evaluation of Classification Algorithms on Imbalanced Data Sets」主題。共同形成了獨特的指紋。

引用此