中国科学院机构知识库网格
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浏览/检索结果: 共8条,第1-8条 帮助

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稠密向量实体检索模型的二值化提速压缩 期刊论文  OAI收割
模式识别与人工智能, 2023, 卷号: 36, 期号: 1, 页码: 60
作者:  
王苑铮;  范意兴;  陈薇;  张儒清;  郭嘉丰
  |  收藏  |  浏览/下载:18/0  |  提交时间:2024/05/20
A composite nonparametric product limit approach for estimating the distribution of survival times under length-biased and right-censored data 期刊论文  OAI收割
STATISTICS AND ITS INTERFACE, 2020, 卷号: 13, 期号: 2, 页码: 221-235
作者:  
Fan, Shuqin;  Zhao, Wei;  Wan, Alan T. K.;  Zhou, Yong
  |  收藏  |  浏览/下载:22/0  |  提交时间:2020/05/24
Variational study of U(1) and SU(2) lattice gauge theories with Gaussian states in 1+1 dimensions 期刊论文  OAI收割
PHYSICAL REVIEW D, 2018, 卷号: 98, 期号: 3, 页码: 34505
作者:  
Shi, T;  Sala, P;  Cirac, JI;  Demler, E;  Banuls, MC
  |  收藏  |  浏览/下载:40/0  |  提交时间:2018/12/27
Directional multiscale edge detection using the contourlet transform (EI CONFERENCE) 会议论文  OAI收割
2010 IEEE International Conference on Advanced Computer Control, ICACC 2010, March 27, 2010 - March 29, 2010, 445 Hoes Lane - P.O.Box 1331, Piscataway, NJ 08855-1331, United States
作者:  
Jin L.-X.;  Han S.-L.;  Zhang R.-F.
收藏  |  浏览/下载:43/0  |  提交时间:2013/03/25
Wavelet multiresolution analysis allows us to detect edges at different scales  also to obtain other important aspects of the extracted edges. However  due to the usual two-dimensional tensor product  wavelet transform is not optimal for representing images. The main problem in edge detection using wavelet transform is that it can only capture point-singularities  and the extracted edges are not continuous. In order to solve that problem  we propose a new image edge detection method based on the contourlet transform. The directional multiresolution representation Contourlet takes advantages of the intrinsic geometrical structure of images  and is appropriate for the analysis of the image edges. Using the modulus maxima detection  an image edge detection method based on contourlet transform is proposed. To suppress the image noise effect on edge detection  the scale multiplication in contourlet domain is also proposed. Through real images experiments  the proposed edge detection method's performance for the extracted edges is analyzed and compared with other two edge detection methods. The experiment result proves that the proposed edge detection method improves over wavelet-based techniques and Canny detector  and also works well for noisy images. 2010 IEEE.  
Surface Corrugation in Rotational and Diffractive Scattering of O(2) from LiF (001) 期刊论文  OAI收割
Communications in Theoretical Physics, 2010, 卷号: 54, 期号: 6, 页码: 1112-1120
K. Xu; X. R. Chen; D. Q. Wei; Q. Q. Gou
收藏  |  浏览/下载:16/0  |  提交时间:2012/04/13
A kernel-type estimator of a quantile function under randomly truncated data 期刊论文  OAI收割
ACTA MATHEMATICA SCIENTIA, 2006, 卷号: 26, 期号: 4, 页码: 585-594
作者:  
Zhou Yong;  Wu Gofu;  Li Daoji
  |  收藏  |  浏览/下载:21/0  |  提交时间:2018/07/30
Survival function and density estimation for truncated dependent data 期刊论文  OAI收割
STATISTICS & PROBABILITY LETTERS, 2001, 卷号: 52, 期号: 1, 页码: 47-57
作者:  
Sun, LQ;  Zhou, X
  |  收藏  |  浏览/下载:14/0  |  提交时间:2018/07/30
A strong representation of the product-limit estimator for left truncated and right censored data 期刊论文  OAI收割
JOURNAL OF MULTIVARIATE ANALYSIS, 1999, 卷号: 69, 期号: 2, 页码: 261-280
作者:  
Zhou, Y;  Yip, PSF
  |  收藏  |  浏览/下载:20/0  |  提交时间:2018/07/30