Alternatively, a Fixed Area Plot of 500 m or a combined Angle Count Sampling method with a basal area factor of 4 m/ha and a 200 m Fixed Area Plot may be considered.doi:10.1016/j.tfp.2023.100419Mathias LeiterH. HasenauerTrees, Forests and People
Systematic sampling(系统抽样)是每隔一定间隔从总体中抽取样本,题干中“every nth item is selected from a population”符合系统抽样的特点。Simple random sampling(简单随机抽样)是随机抽取样本;Stratified sampling(分层抽样)是将总体分成若干层,再从各层中抽取样本;Cluster sampling(整群抽样)是将总体分成若干群,再...
In a large-scale survey, which sampling method is most suitable when the population is heterogeneous? A. Simple random sampling B. Stratified sampling C. Cluster sampling D. Systematic sampling 相关知识点: 试题来源: 解析 B。本题考查抽样方法的选择。简单随机抽样(A 选项)适用于总体较小且同质的...
We trained Longformer using undersampling due to technical constraints, and compared it to BERT and CNN also trained with this method. Fig. 1: Simplified diagrams of the language models used in this work. a The bag-of-words model counts word occurrences in a document, which is then used ...
Hence, the contributions of the work are as follows: SN Computer Science • Since the explanations based on a single machine learning model using a specific explanation method can be biased over that model/method, a novel framework is proposed to provide a model-agnostic explanation utilising ...
Which of the following is a method of probability sampling?? Systematic samplingSimple random samplingStratified samplingAll of the above are methods of probability sampling.相关知识点: 试题来源: 解析 All of the above are methods of probability sampling....
Sampling:Sampling refers to the process where elements are selected to represent the whole population. There are two main types of sampling that are researcher can use and they include: Probability sampling. Non-probability sampling.Answer and Explanation: ...
In the method section, we will further explicate how we put this scheme into practice by using it for building content analytical categories and combining the results of this content analysis with network analysis. Method A study that tries to assess the extent of harmful and helpful depictions ...
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Although statistical sampling of a free energy surface can address reactivity in complex interfaces, several unique challenges arise which strongly limit the quality of results that can be achieved: (I) When using DFT-based potential energies, the system size and simulation time are limited to ...