multistage sampling 中文意思是什麼

multistage sampling 解釋
多層選樣法,多段選樣法
  • multistage : adj. 1. 多級(式)的。2. 分階段進行的。
  • sampling : n. 1. 取樣(品),取標(本)〈指行動或程序〉。2. 樣品,標本。3. 剽竊拼湊歌曲。
  1. In accordance with the problem that the fcm algorithm is quite time - consuming for search out cluster cancroids and may not be suitable for on - line modeling and control. this dissertation proposed an improved fuzzy identification method based multistage random sampling fuzzy c - means clustering algorithm ( mrfcm ). it has higher approximate precision and the cpu time has slowed down sharply compared with the common fuzzy

    Johnyen和liangwang介紹了幾種應用於模糊模型的信息優化準則,本論文在此基礎上對統計信息準則進行一些改進,並與快速模糊聚類和正交最小二乘方法結合,提高了模型的辨識精度和泛化能力。
  2. Multistage sampling in forest inventory is not restricted to fixed-area sampling units.

    森林資源清查中,多階抽樣並不局限於固定面積的抽樣單元。
  3. Recommended by china disabled persons ' federation, the survey is carried out through delamination, isometry, probability and multistage sampling, 734 nationwide counties ( cities, districts ) and 5980 subdistricts is taken out, almost 2. 6 million people, 2 of the national population, is referred

    中國殘聯介紹,這次殘疾人抽樣調查採用分層、等距、概率比例、多階段抽樣方法,從全國范圍內抽取了734個縣(市、區) 5980個調查小區,設計樣本量近260萬人,佔全國總人口的2 。
  4. To have a clear idea about the admission of master ' s degree program, we conducted a survey of its present status in hunan province. the method of multistage sampling was adopted in the survey. totally, 692 peoples in seven universities, such as nanhua university, took part in the survey

    為了較全面地了解我國碩士研究生招生現況,本研究採用多階段混合抽樣方法,在湖南省隨機抽取了南華大學等7所高校,以692名在校人員為調查對象,調查與分析湖南省碩士招生情況。
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