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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.1
- 수록면
- 56 - 64 (9page)
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In recent years, imbalanced data is one of the most important and frequent issue for quality control in industrial field. As an example, defect rate has been drastically reduced thanks to highly developed technology and quality management, so that only few defective data can be obtained from production process. Therefore, quality classification should be performed under the condition that one class (defective dataset) is even smaller than the other class (good dataset). However, traditional multi-class classification methods are not appropriate to deal with such an imbalanced dataset, since they classify data from the difference between one class and the others that can hardly be found in imbalanced datasets. Thus, one-class classification that thoroughly learns patterns of target class is more suitable for imbalanced dataset since it only focuses on data in a target class. So far, several one-class classification methods such as one-class support vector machine, neural network and decision tree there have been suggested. One-class support vector machine and neural network can guarantee good classification rate, and decision tree can provide a set of rules that can be clearly interpreted. However, the classifiers obtained from the former two methods consist of complex mathematical functions and cannot be easily understood by users. In case of decision tree, the criterion for rule generation is ambiguous. Therefore, as an alternative, a new one-class classifier using hyper-rectangles was proposed, which performs precise classification compared to other methods and generates rules clearly understood by users as well. In this paper, we suggest an approach for improving the limitations of those previous one-class classification algorithms. Specifically, the suggested approach produces more improved one-class classifier using hyper-rectangles generated by using Gaussian function. The performance of the suggested algorithm is verified by a numerical experiment, which uses several datasets in UCI machine learning repository.
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참고문헌 (18)
참고문헌 신청
Asuncion, A. / 0000 / UCI machine learning repository
Baehrens, D. / 2010 / How to explain individual classification decisions / The Journal of Machine Learning Research 11:1803~1831
Barakat, N. / 2010 / Rule extraction from support vector machines : a review / Neurocomputing 74(1-3):178~190
Cortes, C. / 1995 / Support-vector networks / Machine Learning 20(3):273~297
De Comite, F. / 1999 / Positive and unlabeled examples help learning / Proceedings of International Conference on Algorithmic Learning Theory :219~230
Baehrens, D. / 2010 / How to explain individual classification decisions / The Journal of Machine Learning Research 11:1803~1831
Barakat, N. / 2010 / Rule extraction from support vector machines : a review / Neurocomputing 74(1-3):178~190
Cortes, C. / 1995 / Support-vector networks / Machine Learning 20(3):273~297
De Comite, F. / 1999 / Positive and unlabeled examples help learning / Proceedings of International Conference on Algorithmic Learning Theory :219~230
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