Abstract
Since the k-nearest neighbor (kNN) classification is a simple and effective classification approach, it is well known in the data classification. However, improving performance of the classifier is still attractive to cope with the high accuracy processing. A tolerant rough set is considered as a basis of the classification of data. The data classification is realized by applying the kNN with distance function. To improve the classification accuracy, a distance function with weights is considered. Then, weights of the function are optimized by the genetic algorithm. After the learning of training data, an unknown data is classified by the kNN with distance function. To improve further the performance of the kNN classifier, a relearning method is proposed. The proposed relearning method shows a higher generalization accuracy when compared to the basic kNN with distance function and other conventional learning algorithms. Experiments have been conducted on some benchmark datasets from the UCI Machine Learning Repository.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Bay, S.D.: Combining Nearest Neighbor Classifiers Through Multiple Feature Subsets. Intelligent Data Analysis 3(3), 191–209 (1999)
Bao, Y., Ishii, N.: Combining Multiple k-Nearest Neighbor Classifiers for Text Classification by Reducts. In: Lange, S., Satoh, K., Smith, C.H. (eds.) DS 2002. LNCS (LNAI), vol. 2534, pp. 340–347. Springer, Heidelberg (2002)
Ishii, N., Muai, T., Yamada, T., Bao, Y.: Classification by Weighting, Similarity and kNN. In: Corchado, E., Yin, H., Botti, V., Fyfe, C. (eds.) IDEAL 2006. LNCS, vol. 4224, pp. 57–64. Springer, Heidelberg (2006)
Cover, T.M., Hart, P.E.: Nearest Neighbor Pattern Classification. IEEE Transactions on Information Theory 13(1), 21–27 (1967)
Wilson, D.R., Martinez, T.R.: An Integrated Instance-based Learning Algorithm. Computational Intelligence 16(1), 1–28 (2000)
Merz, C.J., Murphy, P.M.: UCI Repository of Machine Learning Databases. Irvine, CA (1998), http://www.ics.uci.edu/~mlearn/MLRepository.html
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2009 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Ishii, N., Hoki, Y., Okada, Y., Bao, Y. (2009). Nearest Neighbor Classification by Relearning. In: Corchado, E., Yin, H. (eds) Intelligent Data Engineering and Automated Learning - IDEAL 2009. IDEAL 2009. Lecture Notes in Computer Science, vol 5788. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-04394-9_6
Download citation
DOI: https://doi.org/10.1007/978-3-642-04394-9_6
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-04393-2
Online ISBN: 978-3-642-04394-9
eBook Packages: Computer ScienceComputer Science (R0)