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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/39478
標題: | 投影Barzilai-Borwein法求解非負矩陣分解 Projected Barzilai-Borwein Methods for Non-negative Matrix Factorization |
作者: | Chen-Tse Tsai 蔡鎮澤 |
指導教授: | 林智仁 |
關鍵字: | 非負矩陣分解,Barzilai-Borwein法,梯度下降法, Non-negative matrix factorization,Barzilai-Borwein method,projected gradient method., |
出版年 : | 2011 |
學位: | 碩士 |
摘要: | Non-negative matrix factorization (NMF) is a useful dimension reduction tech- nique. Currently, the most effective way to minimize NMF optimization problems is by alternatively solving non-negative least square sub-problems. Some recent stud- ies have shown that projected Barzilai-Borwein methods are very efficient for solving each sub-problem. In this thesis, we study variants of the projected Barzilai-Borwein methods and discuss some useful implementation techniques. We provide an efficient implementation to succeed our popular NMF code via a projected gradient method. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/39478 |
全文授權: | 有償授權 |
顯示於系所單位: | 資訊工程學系 |
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