نتایج جستجو برای: method of least squares

تعداد نتایج: 21271421  

2008
Tomonari Kitahara Takashi Tsuchiya

In this paper, we analyze the limiting behavior of the weighted least squares problem minx∈<n Pp i=1 kDi(Aix − bi)k2, where each Di is a positive definite diagonal matrix. We consider the situation where the magnitude of the weights are drastically different block-wisely so that max(D1) ≥ min(D1) À max(D2) ≥ min(D2) À max(D3) ≥ . . . À max(Dp−1) ≥ min(Dp−1)À max(Dp). Here max(·) and min(·) repr...

Journal: :Central European Journal of Operations Research 2008

2016
B. Narsing Rao Raghavendar Inguva

In this paper, a new formulation for power system state estimation is proposed. The formulation is based on regularized least squares method which uses the principle of Thikonov’s regularization to overcome the limitations of conventional state estimation methods. In this approach, the mathematical unfeasibility which results from the lack of measurements in case of ill-posed problems is elimin...

Journal: :INFORMS Transactions on Education 2000

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان 1392

in the area of vocabulary teaching and learning although much research has been done, only some of it has led to effective techniques of vocabulary teaching and many language learners still have problem learning vocabulary. the urge behind this study was to investigate three methods of teaching words. the first one was teaching words in context based on a traditional method of teaching that is,...

2012
Hong Kong Zhonghua Qiao Amiya Kumar Pani Eiichi Bannai C. T. Kelley Mingyu Xu Congpei An Dongwoo Sheen Graeme Fairweather Xiaojun Chen Yanping Lin Jie Shen Shuhuang Xiang

In this talk, starting with some earlier results, we propose and analyze an alternate approach of optimal L2error estimates for semidiscrete Galerkin approximations to a second order linear parabolic initial and boundary value problem with rough initial data. Our analysis is based on energy arguments without using parabolic duality. Further, it follows the spirit of the proof technique used for...

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