این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Iranian Journal of Fuzzy Systems، جلد ۱۷، شماره ۴، صفحات ۸۵-۱۰۴
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Refining membership degrees obtained from fuzzy C-means by re-fuzzification
چکیده انگلیسی مقاله Fuzzy C-mean (FCM) is the most well-known and widely-used fuzzy clustering algorithm. However, one of the weaknesses of the FCM is the way it assigns membership degrees to data which is based on the distance to the cluster centers. Unfortunately, the membership degrees are determined without considering the shape and density of the clusters. In this paper, we propose an algorithm which takes the FCM clustering results and re-fuzzifies them by taking into account the shape and density of the clusters. The algorithm first defuzzifies the FCM clustering results. Then the crisp result is fuzzified again. Re-fuzzification in our algorithm has some advantages. The main advantage is that the fuzzy membership degrees of data points are obtained based on the shape and density of clusters. Adding the ability to eliminate noise and outlier data is the other advantage of our algorithm. Finally, our proposed re-fuzzification algorithm can slightly improve the FCM clustering quality, because the data points change their clusters according to similarity to the shape and density of their respective clusters. These advantages are supported by simulations on real and synthetic datasets.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله M. Javadian |
Department of Computer Engineering, Faculty of Information Technology, Kermanshah University of Technology, Kermanshah, Iran

R. Vaziri |
Islamic Azad University Central Tehran Branch, Tehran, Iran

S. Haghzad Klidbary |
Department of Computer Engineering, Faculty of Engineering, University of Zanjan, Zanjan, Iran

A. Malekzadeh |
Department of Computer Science and Statistics, Faculty of Mathematics, K.N. Toosi University of Technology, Tehran, Iran

نشانی اینترنتی http://ijfs.usb.ac.ir/article_5408_7b1b6695ca9181bf2c0a10bec6c836af.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/448/article-448-2427135.pdf
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات