A Weighted Block Dictionary Learning Algorithm for Classification
المؤلف
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2016، العدد 2016 (31 ديسمبر/كانون الأول 2016)، ص ص. 1-15، 15ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2016-08-23
دولة النشر
مصر
عدد الصفحات
15
التخصصات الرئيسية
الملخص EN
Discriminative dictionary learning, playing a critical role in sparse representation based classification, has led to state-of-the-art classification results.
Among the existing discriminative dictionary learning methods, two different approaches, shared dictionary and class-specific dictionary, which associate each dictionary atom to all classes or a single class, have been studied.
The shared dictionary is a compact method but with lack of discriminative information; the class-specific dictionary contains discriminative information but consists of redundant atoms among different class dictionaries.
To combine the advantages of both methods, we propose a new weighted block dictionary learning method.
This method introduces proto dictionary and class dictionary.
The proto dictionary is a base dictionary without label information.
The class dictionary is a class-specific dictionary, which is a weighted proto dictionary.
The weight value indicates the contribution of each proto dictionary block when constructing a class dictionary.
These weight values can be computed conveniently as they are designed to adapt sparse coefficients.
Different class dictionaries have different weight vectors but share the same proto dictionary, which results in higher discriminative power and lower redundancy.
Experimental results demonstrate that the proposed algorithm has better classification results compared with several dictionary learning algorithms.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Shi, Zhongrong. 2016. A Weighted Block Dictionary Learning Algorithm for Classification. Mathematical Problems in Engineering،Vol. 2016, no. 2016, pp.1-15.
https://search.emarefa.net/detail/BIM-1112092
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Shi, Zhongrong. A Weighted Block Dictionary Learning Algorithm for Classification. Mathematical Problems in Engineering No. 2016 (2016), pp.1-15.
https://search.emarefa.net/detail/BIM-1112092
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Shi, Zhongrong. A Weighted Block Dictionary Learning Algorithm for Classification. Mathematical Problems in Engineering. 2016. Vol. 2016, no. 2016, pp.1-15.
https://search.emarefa.net/detail/BIM-1112092
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1112092
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر