کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6938838 1449966 2018 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An approach to supervised distance metric learning based on difference of convex functions programming
ترجمه فارسی عنوان
یک روش برای نظارت بر یادگیری متریک فاصله بر اساس تفاوت برنامه نویسی توابع محدب
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر چشم انداز کامپیوتر و تشخیص الگو
چکیده انگلیسی
Distance metric learning has motivated a great deal of research over the last years due to its robustness for many pattern recognition problems. In this paper, we develop a supervised distance metric learning method that aims to improve the performance of nearest-neighbor classification. Our method is inspired by the large-margin principle, resulting in an objective function based on a sum of margin violations to be minimized. Due to the use of the ramp loss function, the corresponding objective function is nonconvex, making it more challenging. To overcome this limitation, we formulate our distance metric learning problem as an instance of difference of convex functions (DC) programming. This allows us to design a more robust method than when using standard optimization techniques. The effectiveness of this method is empirically demonstrated through extensive experiments on several standard benchmark data sets.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Pattern Recognition - Volume 81, September 2018, Pages 562-574
نویسندگان
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