搜索筛选:
搜索耗时0.3142秒,为你在为你在102,285,761篇论文里面共找到 24 篇相符的论文内容
类      型:
[期刊论文] 作者:Yan-Xia Zhang Yong-heng Zhao, 来源:中国天文和天体物理学报:英文版 年份:2003
The sizes of astronomical surveys in different wavebands are increas-ing rapidly. Therefore, automatic classification of objects is becoming ever moreimportant....
[期刊论文] 作者:Yan-Xia Zhang Yong-Heng Zhao, 来源:中国天文和天体物理学报:英文版 年份:2007
We compare the performance of Bayesian Belief Networks (BBN), Multilayer Perception (MLP) networks and Alternating Decision Trees (ADtree) on separating quasars...
[期刊论文] 作者:ZHANG Yan-xia,ZHANG Xue-feng, 来源:数学季刊:英文版 年份:2010
在权利明确的 SturmLiouville problems.In 的特征值之中有著名不平等这份报纸,我们与分开并且联合的边界条件学习左明确的常规自我伴随 Sturm-Liouville 问题。为任何固定方...
[期刊论文] 作者:Yan-Xia Zhang,Yong-Heng Zhao, 来源:天体物理学报 年份:2004
The sizes of astronomical surveys in different wavebands are increas-ing rapidly. Therefore, automatic classification of objects is becoming ever moreimportant....
[期刊论文] 作者:ZHANG Yan-xia,ZHANG Jian-rong,, 来源:中华医学杂志(英文版) 年份:2013
Background Mycophenolate mofetil (MMF) has been used to prevent transplant rejection for many years and has been shown to have protective effects against renal...
[期刊论文] 作者:Yan-Xia Zhang,Jing-Yi Zhang,Xi, 来源:天文和天体物理学研究:英文版 年份:2019
Based on the SDSS and SDSS-WISE quasar datasets, we put forward two schemes to estimate the photometric redshifts of quasars. Our schemes are based on the idea...
[期刊论文] 作者:Dan Gao,Yan-Xia Zhang,Yong-Hen, 来源:中国天文和天体物理学报:英文版 年份:2009
我们介绍了为多波长数据分类调用随机的森林的一个决定树方法。数据从不同数据库被采用,包括 Sloan 数字天空调查(SDSS ) 数据版本五, USNO,第一并且 ROSAT。我们然后与样品从恒...
[期刊论文] 作者:Li-Li Li,Yan-Xia Zhang,Yong-He, 来源:中国天文和天体物理学报:英文版 年份:2007
We calculate photometricredshifts from the Sloan Digital Sky SurveyData Release 2 (SDSS DR2) Galaxy Sample using artificial neural networks (ANNs). Different in...
[期刊论文] 作者:Dan Wang,Yan-Xia Zhang,Chao Li, 来源:中国天文和天体物理学报:英文版 年份:2008
我们调查二个火车集合方法:支持向量机器(SVM ) 和为有从 Sloan 数字天空调查数据的数据库的数据的光度计的红移动评价的核回归(KR ) 释放 5 和二微米所有天空调查。我们为不...
[期刊论文] 作者:Bo Han,Yan-Xia Zhang,Shou-Bo Z, 来源:天文和天体物理学研究:英文版 年份:2016
With the application of advanced astronomical technologies, equipments and methods all over the world, astronomical observations cover the range from radio, inf...
[期刊论文] 作者:ZHANG Yan-xia,ZHANG Jian-rong,WANG Zhi-gang, 来源:中华医学杂志英文版 年份:2013
[期刊论文] 作者:Xin Kang,Shi-Yuan He,Yan-Xia Zhang, 来源:天文和天体物理学研究 年份:2021
Spectrum denoising is an important procedure for large-scale spectroscopical surveys.This work proposes a novel stellar spectrum denoising method based on deep Bayesian modeling.The construction of our model includes a prior distribution fo......
[期刊论文] 作者:冯赵建,ZHAO Yan-xia,ZHANG Xiao-fe, 来源:华北理工大学学报(社会科学版) 年份:2017
“大众创新,万众创业”的新常态下,高校创业教育与创业训练的联动性不足,制约着高校创新创业型人才培养的进程.理工科高校应充分解读目前的社会形势,把握目前的态势发展,嵌入...
[期刊论文] 作者:Yan-Xia Zhang,Bing Xia,Yan Zhou,Li-Sheng Ding,Shu-Lin Peng,, 来源:Chinese Chemical Letters 年份:2013
Two new cyclic diarylheptanoids named ostryopsitrienol(1) and ostryopsitriol(2),together with six known compounds,were isolated from the stems of endemic medici...
[会议论文] 作者:Zhao-jun Li,Chun-song Kang,Yan-xia Zhang,Ji-ping Xue,Kai-ling Shi, 来源:The 23rd Great Wall International Congress of Cardiology Asi 年份:2012
[会议论文] 作者:Xuan Wang,Chun-Miao Zhang,Ying Wang,Yan-Xia Zhang,Xiu-Ya Xing, 来源:2016第十二届亚太介入放射学大会 年份:2016
Liver cancer is one of the main malignant tumors cause serious damage to peoples health,and common in some Asian and African region tumors in our country,with primary liver cancer,and in Europe and Am...
[期刊论文] 作者:Li Hui,Shang Yan-Xia,Zhang Zao-Di,Wang Ze-Song,Zhang Rui,Fu De-Jun, 来源:中国物理B(英文版) 年份:2015
[期刊论文] 作者:Bo Han,Li-Na Qiao,Jing-Lin Chen,Xian-Da Zhang,Yan-Xia Zhang,Yong-Heng Zhao, 来源:天文和天体物理学研究 年份:2021
We combine K-nearest neighbors (KNN) with a genetic algorithm (GA) for photometric redshift estimation of quasars,short for GeneticKNN,which is a weighted KNN a...
[会议论文] 作者:Zhao-jun Li,Chun-song Kang,Yan-xia Zhang,Ji-ping Xue,Kai-ling Shi,Chun-song Kang, 来源:The 23rd Great Wall International Congress of Cardiology Asi 年份:2012
[期刊论文] 作者:Wang Qiu-ju,Liu Feng,Gao Pan,Gao Zhong-chao,Chang Ben-chao,Liu Yan-xia,Zhang Li-li,, 来源:Journal of Northeast Agricultural University(English Edition 年份:2015
Five rice varieties were planted to determine the variation of the yield and quality traits in five different regions in a cold area of China. The results showe...
相关搜索: