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A New Nearest Neighbor Classification Algorithm Based on Local Probability Centers
المؤلفون المشاركون
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2014، العدد 2014 (31 ديسمبر/كانون الأول 2014)، ص ص. 1-14، 14ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2014-02-09
دولة النشر
مصر
عدد الصفحات
14
التخصصات الرئيسية
الملخص EN
The nearest neighbor is one of the most popular classifiers, and it has been successfully used in pattern recognition and machine learning.
One drawback of kNN is that it performs poorly when class distributions are overlapping.
Recently, local probability center (LPC) algorithm is proposed to solve this problem; its main idea is giving weight to samples according to their posterior probability.
However, LPC performs poorly when the value of k is very small and the higher-dimensional datasets are used.
To deal with this problem, this paper suggests that the gradient of the posterior probability function can be estimated under sufficient assumption.
The theoretic property is beneficial to faithfully calculate the inner product of two vectors.
To increase the performance in high-dimensional datasets, the multidimensional Parzen window and Euler-Richardson method are utilized, and a new classifier based on local probability centers is developed in this paper.
Experimental results show that the proposed method yields stable performance with a wide range of k for usage, robust performance to overlapping issue, and good performance to dimensionality.
The proposed theorem can be applied to mathematical problems and other applications.
Furthermore, the proposed method is an attractive classifier because of its simplicity.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Li, I-Jing& Wu, Jiunn-Lin. 2014. A New Nearest Neighbor Classification Algorithm Based on Local Probability Centers. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-14.
https://search.emarefa.net/detail/BIM-463570
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Li, I-Jing& Wu, Jiunn-Lin. A New Nearest Neighbor Classification Algorithm Based on Local Probability Centers. Mathematical Problems in Engineering No. 2014 (2014), pp.1-14.
https://search.emarefa.net/detail/BIM-463570
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Li, I-Jing& Wu, Jiunn-Lin. A New Nearest Neighbor Classification Algorithm Based on Local Probability Centers. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-14.
https://search.emarefa.net/detail/BIM-463570
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-463570
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
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