کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
535337 870341 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Kernel Reference Discriminant Analysis
ترجمه فارسی عنوان
تجزیه و تحلیل محرک مرجع هسته؟
کلمات کلیدی
تجزیه و تحلیل محرک هسته، رگرسیون طیفی هسته، نمایندگی کلاس بهینه
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر چشم انداز کامپیوتر و تشخیص الگو
چکیده انگلیسی

Linear Discriminant Analysis (LDA) and its nonlinear version Kernel Discriminant Analysis (KDA) are well-known and widely used techniques for supervised feature extraction and dimensionality reduction. They determine an optimal discriminant space for (non)linear data projection based on certain assumptions, e.g. on using normal distributions (either on the input or in the kernel space) for each class and employing class representation by the corresponding class mean vectors. However, there might be other vectors that can be used for classes representation, in order to increase class discrimination in the resulted feature space. In this paper, we propose an optimization scheme aiming at the optimal class representation, in terms of Fisher ratio maximization, for nonlinear data projection. Compared to the standard approach, the proposed optimization scheme increases class discrimination in the reduced-dimensionality feature space and achieves higher classification rates in publicly available data sets.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Pattern Recognition Letters - Volume 49, 1 November 2014, Pages 85–91
نویسندگان
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