Nearest Neighbor Classification with Locally Weighted Distance for Imbalanced Data

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Provided by: International Association of Computer Science & Information Technology (IACSIT)
Topic: Big Data
Format: PDF
The datasets used in many real applications are highly imbalanced which makes classification problem hard. Classifying the minor class instances is difficult due to bias of the classifier output to the major classes. Nearest neighbor is one of the most popular and simplest classifiers with good performance on many datasets. However, correctly classifying the minor class is commonly sacrificed to achieve a better performance on others. This paper is aimed to improve the performance of nearest neighbor in imbalanced domains, without disrupting the real data distribution.
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