中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共5条，第1-5条

帮助

条数/页：排序方式：
	Accounting for access costs in validation of soil maps: A comparison of design-based sampling strategies 期刊论文 OAI收割 GEODERMA, 2018, 卷号: 315, 页码: 160-169 作者: Yang, Lin; Brus, Dick J.; Zhu, A-Xing; Li, Xinming; Shi, Jingjing \| 收藏 \| 浏览/下载：43/0 \| 提交时间：2019/05/30 Probability sampling Sampling with probabilities-proportional-to-size Stratified random sampling Optimal stratification Digital soil mapping Mean squared error
	Accounting for access costs in validation of soil maps: A comparison of design-based sampling strategies 期刊论文 OAI收割 GEODERMA, 2018, 卷号: 315, 页码: 160-169 作者: Yang, Lin; Brus, Dick J.; Zhu, A-Xing; Li, Xinming; Shi, Jingjing \| 收藏 \| 浏览/下载：21/0 \| 提交时间：2019/05/30 Probability sampling Sampling with probabilities-proportional-to-size Stratified random sampling Optimal stratification Digital soil mapping Mean squared error
	An index tracking model with stratified sampling and optimal allocation 期刊论文 OAI收割 APPLIED STOCHASTIC MODELS IN BUSINESS AND INDUSTRY, 2018, 卷号: 34, 期号: 2, 页码: 144-157 作者: Wang, Meihua; Xu, Fengmin; Dai, Yu-Hong \| 收藏 \| 浏览/下载：27/0 \| 提交时间：2018/07/30 index tracking out-of-sample performance stratified sampling stratified hybrid genetic algorithm s-rar crossover
	Monitoring ungulates in Central Asia: current constraints and future potential 期刊论文 OAI收割 Oryx, 2011, 卷号: 45, 期号: 1, 页码: 38-49 Navinder J. Singha; E.J. Milner-Gullanda 收藏 \| 浏览/下载：24/0 \| 提交时间：2013/08/20 Central Asia confidence intervals cost participatory monitoring saiga sampling effort stratified random sampling ungulate
	A stratified sampling model in spherical feature inspection using coordinate measuring machines 期刊论文 OAI收割 STATISTICS & PROBABILITY LETTERS, 2001, 卷号: 51, 期号: 1, 页码: 25-34 作者: Fang, KT; Wang, SG; Wei, G \| 收藏 \| 浏览/下载：24/0 \| 提交时间：2018/07/30 stratified sampling coordinate measuring machine computer aided design linear model random effect