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• 地理科学与资源研究所 [3]
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• OAI收割 [11]

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• 期刊论文 [6]
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浏览/检索结果: 共11条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 A graded proportion method of training sample selection for updating conventional soil maps 期刊论文  OAI收割 GEODERMA, 2020, 卷号: 357, 页码: 9 作者:  Liu, Xueqi;  Zhu, A-Xing;  Yang, Lin;  Pei, Tao;  Liu, Junzhi   |  收藏  |  浏览/下载：35/0  |  提交时间：2020/05/19 Training sample selection method  Data mining model  Update conventional soil map  Soil-environmental relationships   A graded proportion method of training sample selection for updating conventional soil maps 期刊论文  OAI收割 GEODERMA, 2020, 卷号: 357, 页码: 9 作者:  Liu, Xueqi;  Zhu, A-Xing;  Yang, Lin;  Pei, Tao;  Liu, Junzhi   |  收藏  |  浏览/下载：17/0  |  提交时间：2020/05/19 Training sample selection method  Data mining model  Update conventional soil map  Soil-environmental relationships   Data point selection for weighted least square fitting of cavity decay time constant 期刊论文  OAI收割 CHINESE PHYSICS B, 2016, 卷号: 25, 期号: 1 作者:  He, Xing;  Yan, Hu;  Dong, Li-Zhi;  Yang, Ping;  Xu, Bing 收藏  |  浏览/下载：17/0  |  提交时间：2016/06/27 cavity ring-down  decay time extraction  weighted least square method  data point selection   无监督高光谱图像解混方法研究 学位论文  OAI收割 工学博士, 中国科学院自动化研究所: 中国科学院大学, 2015 作者:  朱飞云 收藏  |  浏览/下载：118/0  |  提交时间：2015/09/02 无监督高光谱解混  结构稀疏学习  数据引导稀疏学习  鲁棒学习  大规模子集选择  增广拉格朗日方法  Unsupervised Hyperspectral Unmixing (UHU)  Structured Sparse Learning  Data guided Sparse Learning  Robust Learning  Large Scale Sbuset Selection  Augmented Lagrangian Method (ALM)   Tree-based ensemble methods and their applications in analytical chemistry 期刊论文  OAI收割 trac-trends in analytical chemistry, 2012, 卷号: 40, 页码: 158-167 作者:  Cao, Dong-Sheng;  Xu, Qing-Song;  Zhang, Liang-Xiao;  Huang, Jian-Hua;  Liang, Yi-Zeng 收藏  |  浏览/下载：34/0  |  提交时间：2015/11/09 Chemometrics  Classification and regression tree (CART)  Cluster analysis  Complex data  Ensemble algorithm  Kernel method  Outlier detection  Pattern analysis  Tree-based ensemble  Variable selection   An auto-focus algorithm of fast search based on combining rough and fine adjustment (EI CONFERENCE) 会议论文  OAI收割 3rd international Conference on Manufacturing Science and Engineering, ICMSE 2012, March 27, 2012 - March 29, 2012, Xiamen, China 作者:  Zhang S.;  Zhang Y. 收藏  |  浏览/下载：28/0  |  提交时间：2013/03/25 A coarse and fine combined fast search and auto-focusing algorithm was suggested in this paper. This method can automatically search and find the focal plane by evaluating the image definition. The Krisch operator based edge energy function was used as the big-step coarse focusing  and then the wavelet transform based image definition evaluation function  which is sensitivity to the variation in image definition  was used to realize the small-step fine focusing in a narrow range. The un-uniform sampling function of the focusing area selection used in this method greatly reduces the workload and the required time for the data processing. The experimental results indicate that this algorithm can satisfy the requirement of the optical measure equipment for the image focusing. (2012) Trans Tech Publications.   Support Vector Machines with L-1 penalty for detecting gene-gene interactions 期刊论文  OAI收割 INTERNATIONAL JOURNAL OF DATA MINING AND BIOINFORMATICS, 2012, 卷号: 6, 期号: 5, 页码: 463-470 作者:  Shen, Yuanyuan;  Liu, Zhe;  Ott, Jurg 收藏  |  浏览/下载：32/0  |  提交时间：2015/09/09 genome-wide association study  human complex disease  gene-gene interaction  SVM  support vector machine  model selection  L-1 penalty  two-stage method  data mining  bioinformatics   交互式口语翻译方法及相关问题研究 学位论文  OAI收割 工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2010 作者:  刘鹏 收藏  |  浏览/下载：62/0  |  提交时间：2015/09/02 口语翻译  交互式翻译  未登录词  未登录短语  数据选择方法  spoken language translation  interactive translation  out-of-vocabulary  unknown phrase  data selection method   Modulation transfer function in seeker camera limits resulting from missile flutter caused by aerodynamic force (EI CONFERENCE) 会议论文  OAI收割 2010 2nd International Conference on Industrial Mechatronics and Automation, ICIMA 2010, May 30, 2010 - May 31, 2010, Wuhan, China 作者:  Zhang X.;  Zhang X.;  Zhang X. 收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25 The imaging quality of seeker in flight mode has been evaluated through analyzing the effects of missile flutter on optical modulation transfer function (MTF) of the optical system. Firstly the data of transverse vibration has been processed to eliminate the trend term caused by the trajectory  then obtained the displacement with two times trapezoidal integration. For the side rotation  the high frequency noise interference in the data has been filtered by using five-point moving average method. Took this model as the quivering rule between the object and the image  and then analyzed the effects of the transverse vibration and the side rotation on imaging quality through MTF. By calculation  the r.m.s value of the image motion caused by missile transverse vibration is 0.026mm  and the side rotation angle is 0.0044 . Through the establishment of two modulation transfer functions (MTF) of image random vibration and linear vibration  the results show that the image quality had declined  and the effect of transverse vibration on image quality is obvious. Through improving the rigidity of the missile and selection of small focal length optical system and shorten the time of exposure can improve the imaging quality of the seeker. 2010 IEEE.   Multi-scale digital terrain analysis and feature selection for digital soil mapping SCI/SSCI论文  OAI收割 2010 Behrens T.; Zhu A. X.; Schmidt K.; Scholten T. 收藏  |  浏览/下载：32/0  |  提交时间：2012/06/08 Multi-scale digital terrain analysis  Feature selection  Spatial data  mining  Digital soil mapping  ANOVA  Principal components analysis  Random subsets  Decision trees  scale-dependent correlation  random subspace method  dem resolution  fuzzy-logic  map scale  model  landscapes  areas  silty  size