中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共6条,第1-6条 帮助

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Composite Estimating Equation Method for the Accelerated Failure Time Model with Length-biased Sampling Data 期刊论文  OAI收割
SCANDINAVIAN JOURNAL OF STATISTICS, 2016, 卷号: 43, 期号: 2, 页码: 396-415
作者:  
Qiu, Zhiping;  Qin, Jing;  Zhou, Yong
  |  收藏  |  浏览/下载:31/0  |  提交时间:2018/07/30
SAGA: sparse and geometry-aware non-negative matrix factorization through non-linear local embedding 期刊论文  OAI收割
MACHINE LEARNING, 2014, 卷号: 97, 期号: 1-2, 页码: 205-226
作者:  
Courty, Nicolas;  Gong, Xing;  Vandel, Jimmy;  Burger, Thomas
收藏  |  浏览/下载:33/0  |  提交时间:2015/09/18
Kernel Density Estimation, Kernel Methods, and Fast Learning in Large Data Sets 期刊论文  OAI收割
IEEE TRANSACTIONS ON CYBERNETICS, 2014, 卷号: 44, 期号: 1, 页码: 1-20
Wang, Shitong; Wang, Jun; Chung, Fu-lai
  |  收藏  |  浏览/下载:33/0  |  提交时间:2014/12/16
Error Analysis of Stochastic Gradient Descent Ranking 期刊论文  OAI收割
ieee transactions on cybernetics, 2013, 卷号: 43, 期号: 3, 页码: 898-909
作者:  
Chen, Hong;  Tang, Yi;  Li, Luoqing;  Yuan, Yuan;  Li, Xuelong
收藏  |  浏览/下载:46/0  |  提交时间:2015/06/03
A high-accuracy parameter estimation algorithm for jointless Frequency-shift track circuit (EI CONFERENCE) 会议论文  OAI收割
ISECS International Colloquium on Computing, Communication, Control, and Management, CCCM 2008, August 3, 2008 - August 4, 2008, Guangzhou, China
作者:  
Zheng X.
收藏  |  浏览/下载:30/0  |  提交时间:2013/03/25
FSK (Frequency Shift keying) signal  which has advantages of narrow-bandwidth  strong anti-interference ability  long transmission distance and so on  is used in jointless Frequency-shift track circuit to send different kinds of control signals. However  as FSK is non-linearly modulated  parameter estimation with high accuracy is hard to realize. Based on the spectrum analysis complement with time-frequency distribution  a highaccuracy FSK signal parameter estimation algorithm is put forward in this paper. According to the signal characteristics  under-sampling and ZFFT are used to improve the accuracy of spectrum analysis  and the base frequency resolution meets system requirement of 0.02Hz. Wigner-Ville distribution has an excellent time-frequency concentration while serious cross-term interference at the same time. Through the design of kernel function  the cross-terms are almost suppressed and the upper/down side frequency resolution meets the system requirement of 0.2Hz. The effectivities of all the methods mentioned above have been proved by MATLAB simulation  which pave a solid way for the development of high-accuracy FSK signal parameter estimation devices. 2008 IEEE.  
L-2-norm optimum interpolator for image reconstruction: applications in remote sensing image magnification 会议论文  OAI收割
Second Internation Conference on Image and Graphics, Pts 1 and 2, Bellingham
Tang, P; Zhu, CG
收藏  |  浏览/下载:20/0  |  提交时间:2014/12/07