random sampling method 中文意思是什麼

random sampling method 解釋
隨機采樣法
  • random : n 〈罕用語〉胡亂行為，偶然的[隨便的]行動[過程]。adj 1 任意的，胡亂的，隨便的；（話等）信口亂說的...
  • 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。
  • method : n 1 方法，方式；順序。2 （思想、言談上的）條理，規律，秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  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. Besides, this paper adopts the random finite element method, uses geometric and physical mechanical parameters that are relevant to lining weight of surrounding rock, coefficient of lateral pressure, height or buried depth of vertical loading, elastic resistance coefficients of surrounding rock, elastic modulus of support structure, unit weight of concrete, thickness of the structure as well as torsional strength and compression strength of concrete and etc., as random variables, applies the monte - carlo method to sampling by computer, preliminarily evaluates the reliability of bearing capacity and stability of molded concrete lining of the xuefeng mountain tunnel, and obtains the related displacement of the lining, mean value and variance of internal force, and computed the reliability index of lining structures

    此外，本文採用隨機有限元方法，將圍巖容重、側壓力系數、垂直荷載高度或埋深、圍巖的彈性抗力系數、支護結構的彈性模量、混凝土容重、結構的厚度以及混凝土的抗扭與抗壓強度等與襯砌結構有關的幾何與物理力學參數作為隨機變量，應用蒙特卡洛理論進行計算機隨機取樣，對雪峰山隧道模注混凝土襯砌的承載力與穩定性的可靠度進行了初步評估，得出了襯砌的相關位移與內力的均值和方差，並計算出了相應的襯砌結構可靠指標。
  3. Influence of the sampling method of signal with uniform random fluctuation frequency on spectrum analysis

    頻率均勻隨機波動信號采樣方式對譜分析的影響
  4. Methods : random cluster sampling method was used. 2763 subjects were studied with a self - reported questionnaire

    方法：採用整群隨機抽樣方法，對2763名學生通過自填問卷的方式進行了調查。
  5. In order to study the awareness, treatment and control rates andthe risk factors of hypertension in qingdao rural residents, a cluster random sampling method was used

    為了調查青島農村居民高血壓的患病率、知曉率、服藥率、控制率及其影響因素，採用整群隨機抽樣法，對7個村的18歲以上居民進行血壓測量及相關因素調查。
  6. 1809 people of rural and urban huizhou, whose ages were from 20 ~ 59, were tested for 5 physique indexes with the method of random sampling

    摘要採取隨機抽樣法對年齡為20 ~ 59歲的惠州市城鄉1809人進行了5項形態指標測試，提供了群眾體質健康比較數據。
  7. Sampling methods for common distributing random numbers and the samples of random fields are proposed. combining the monte - carlo simulation technique with the one - dimensional discretization finite element method, the monte carlo - finite element method for stochastic analysis and the reliability computation of thin - walled box girders are proposed in this thesis

    建立了幾種常用分佈隨機數以及隨機場隨機樣本的產生方法；將蒙特卡羅數值模擬與薄壁箱梁一維離散有限元法相結合，提出了薄壁箱梁隨機分析和可靠度計算的蒙特卡羅有限元法。
  8. We propose a chaos - based generation of the random ppm - ps signals, design and implement a generator of the ppm - ps signals. we introduce an if sampling technique and simulate the performances of digital demodulation techniques of using hilbert filters, sine filters, bessel filters and poly - phase filters. the poly - phase filtering method can achieve the higher mirror - frequency rejection ratio by using the low order filters

    介紹了中頻采樣技術，並對希爾伯特濾波法、辛格內插函數修正、貝賽爾函數插值法及多相濾波法等數字解調演算法進行了計算機模擬和性能比較，指出多相濾波法能以較低的階數實現較高的鏡頻抑制比。
  9. The survey, using a random telephone sampling method, interviewed 512 adults from all walks of hong kong society to discover how people use chinese and western medicine, their perceptions and preferences for each type of medicine and how these perceptions and preferences might be affected by the introduction of the cmps registration system

    此項電話調查採用隨機抽樣方式進行，共訪問了五百一十二名來自本港社會各階層的成年人士，目的是探討市民如何使用中藥及西藥對中西醫藥的看法和取向，以及實施中醫注冊制度后會否影響他們對中西醫藥的看法。
  10. The data for the study is taken from the answers to questionnaires dispatched to the teachers and students under study. the statistical method used is simple random sampling. the sample size is 223 junior - secondary students ( 119 males and 104 females ) and 27 teachers ( 11 males and 16 females )

    女生104人） ，及教師共27人（男教師11人，女教師16人） ，以隨機抽樣方式進行問卷調查，並利用spss10 . 0作為分析工具，採用因素分析、 f檢驗、卡方分析、兩兩相關等方法對問卷資料進行了統計分析。
  11. Analyzed the signal of 3 - d spatio - temporal sampling in spatio - temporal domain and frequency domain, according as the base principle of sampling, adopted more - dots - marked method, gained random spatio - temporal sampling matrix of digital video signal, it proved that arithmetic is accurate and efficiency

    在時空域和頻域上分析三維采樣的數字視頻流信號，以采樣矩陣方法為依據，採用多點標定方法，得到任意數字視頻流的時空采樣矩陣。計算機模擬實驗證明了該方法的正確性和可行性。
  12. The questionnaires were given to rafters, in siaokuluan and lao - nong river, and non - random sampling method is used. 292 effective questionnaires were collected by siaokuluan river, 325 by lao - nong river

    本研究采問卷調查的方式，對象為參與花蓮秀姑巒溪及高雄?濃溪泛舟之遊客，並於兩條溪流泛舟終點采便利取樣方式進行調查，時間從2005年8月至9月于周休二日假日時實施。
  13. The study used a stratified random sampling method to look at 2159 junior high school students from 22 schools of 6 counties of northern taiwan, as well as 475 inmates of juvenile correctional institutions ; thus there were a total of 2634 samples

    在幫派入侵校園部分，樣本反映出校內常有幫派分子活動，少數學生反應受到幫派學生的侵害，約有11 %的學生指出，恐懼校內外幫派分子之侵擾。
  14. According to the hierarchical random sampling method, we select three areas which are jinan, taian and dezhou. in order to know the morality present situation, then some teachers and students were chosen among the 49 the senior middle schools in jinan, 35 ones in taian and 30 ones in dezhou as research objects

    利用分層隨機抽樣的方法從高、中、低三個層次抽出濟南、泰安、德州三個地區，然後再從濟南市49所高中、泰安的35所高中、德州的30所高中中分別隨機分別抽出兩所高中（分重點和非重點）的體育教師、學生為研究對象，依此來了解山東省體育教師的道德現狀。
  15. Research of self - adaptive random double sampling method on the high - speed network traffic measure

    高速網路流量測量的自適應隨機雙抽樣方法研究
  16. Empirical likelihood method under stratified random sampling using auxiliary information and the information in the strata population size

    在分層抽樣下有效利用輔助信息及含于層總體大小中的信息的經驗似然方法
  17. The author discussed the four steps model and provided the ameliorative method of the logit model and the solution of the fictitious public traffic routes. firstly, the author discussed the result of survey of residents trip, concluded the primary character of residents trip and put forward the method of stratified random sampling plan on that.

    預測時採用了一種比較流行的「四階段模型法」 ，針對「四階段模型法」的出行分佈、交通分配子系統展開了深入的討論，提出了針對重慶山城交通特點的「改進的logit型的隨機路徑選擇模型」和「虛擬公交線路演算法」 。
  18. System applies a page - based sampling method in which a random set of pages from the table is chosen for the sample, and all the rows on those pages are returned as the sample subset

    System應用基於頁的抽樣方法，即從表中選擇一組隨機頁作為樣本，這些頁上的所有行作為樣本子集返回。
  19. The algorithm divides the data into groups by sampling the training data, initializing to a number of random points, and then running several iterations of the microsoft clustering algorithm using the expectation maximization clustering method

    該演算法可以對定型數據采樣，初始化為一些隨機點，然後使用expectation maximization （ em ）聚類分析方法運行幾次microsoft聚類分析演算法迭代，以此將數據分組。由於
  20. Method three thousand and eighty - sevedn beijing citizens from various areas were selected by using stratified random sampling and were surveyed by the questionnaires

    方法採用多階段分層隨機抽樣的方法，應用自行設計的調查表，調查不同地區的北京市民，共回收有效問卷3087份。
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