...rix factorization, weighted approximation, Bregman divergence, multiplicative [gap=295]关键词：非负矩阵分解，加权逼近，布雷格曼分歧，乘 ...
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global weighted approximation 整体加权逼近
weighted Lp approximation 加权Lp逼近
weighted density approximation 加权近似密度泛函方法 ; 加权密度近似 ; 权重密度近似
weighted optimal approximation 加权最佳逼近
weighted residuals approximation 加权残数法
weighted simultaneous approximation 带权同时逼近
Weighted approximation by a class of linear combinations of Bernstein type operators;
给出了一类多元线性正算子线性组合在一致逼近意义下的特征刻划。
It used the moving least square approximation as a trial function, and used the weighted function of the moving least square approximation as a test function of the weighted residual method.
这种方法采用移动最小二乘函数来近似解变量，并且采用移动最小二乘近似函数的权函数作为加权残值法的权函数。
U. s. Pat. No. 6,894,627 proposes a solution where the successive approximation converter is provided with a second sub-array of binary weighted bits.
美国专利6,894,627提出了一种解决方案，其中，向逐次近似转换器提供二进制加权位的第二子阵列。
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