統計估計值 的英文怎麼說

中文拼音 [tǒngjìgūjìzhí]
統計估計值 英文
statistic estimated value
  • 統 : Ⅰ名詞1 （事物間連續的關系） interconnected system 2 （衣服等的筒狀部分） any tube shaped part of ...
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 估 : 估構詞成分。
  • 統計 : 1 （對有關數據的搜集、整理、計算和分析） statistics; census; numerical statement; vital statistic...
  • 估計 : estimate; evaluate; take stock of; size up; calculate; appraise; reckon; estimation; forecast
  1. And then facing the problem of the channel estimation of the adaptive modulation system, we conclude out the channel estimation algorithms on maximum likelihood ( ml ) estimation and maximum a posteriori ( map ) estimation under the condition of flat fading channel and selective fading channel in detail. to meet flat fading channel, we simulate the relationship of the ratio between the error covariance in map estimation and ml estimation and pilot symbol message length. the conclusion can be drawn from these results

    接著，對自適應調制系統中的通道估計問題難點，詳細推導了平衰落通道條件下和選擇性衰落通道條件下最大似然（ ml ）估計和最大后驗概率（ map ）估計演算法，針對平衰落通道，我們模擬了map估計和ml估計的方差與導頻符號長度的關系，模擬結果表明，錯誤方差受多譜勒頻率的變化影響最大，並且對實際的自適應調制系統，導頻符號長度的取值超過20個符號長度時， map通道估計明顯優于ml通道估計。
  2. Third, this dissertation analyzes the complicacy of result size estimation problem for xml structure based query optimization compared to its counterpart in traditionally relational database, and proposes a full - featured result size estimation algorithm for xml query, sxm. for simple path expression query, this dissertation proposes a dynamic synopsis model for xml data based on the concept of f - stable and b - stable, xmap. for complicated path expression query, this dissertation adopts an improved bifocal sampling method for result size estimation

    第三，分析了xml結構化查詢優化中的查詢代價估計問題與傳統關系型數據庫中的查詢代價估計問題的區別，提出了一套完整的xml結構化查詢代價估計體系sxm ，包括對簡單路徑表達進行查詢代價估計的動態xml數據統計模型xmap ，對復雜路徑表達進行查詢代價估計的雙焦點例舉法，以及對值匹配條件進行查詢代價估計的基於小波的多維直方圖方法，並能將多種查詢表達的查詢代價估計結果結合在一起，以給出一個完整的xpath查詢的代價估計。
  3. In the presented method, the point estimations of the model parameters, aandb in the new model, are given by the least square method. the confidence interval for the parameter b is given as well. an engineering illustration is used to compare the result of the presented method with those of amsaa - bise model and duane model

    該模型充分考慮了增長過程中的各種可得信息，採用非參數方法得到多臺系統在各同步停止試驗時刻的可靠度，並利用最小二乘法擬合求得該模型中參數a ， b的點估計值，以及b的置信限。
  4. Through matlab simulations, this improved algorithm can not only achieve the same resolution ability as the conventional music algorithm in ideal conditions, but also acquire the resolution ability and estimation precision that music algorithm can ’ t obtain in the nonideal condition of so - called signal eigenvalue leakage

    通過matlab模擬，該改進方法不僅可以在理想情況下取得和傳統music演算法一樣的分辨力，而且在所謂的信號特徵值泄露的非理想情況下可以取得傳統music演算法不能達到的分辨力和估計精度，同時一定程度上減小了運算量。
  5. In this paper, two major types, the natural vegetation and crop vegetation in luota are studied. we can gain the different distributive area by remote sensing technology, in accordance with conifer forest, broadleaf forest, thick shrub forest, shrub forest, herbs shrub forest, herbs naked rock and crop vegetation. the valuation of the output of standing trees, water conserbancy, soil conserbation to control erosion and purify the air is the main basis which is used to value the functions of the forest ecosystem of the conifer forest and broadleaf forest of luotathe result reveal that the total ecological function value of the forest which area is 1388. 8 hm2 is estimated up to 18. 36 million yuan per annum. the synthetic valuation system of luota vegetation is put forward by the valuation of per hm2 in evergreen - deciduous forest, conifer forest, conifer and broadleaf forest, broadleaf forest, scatteredtree - shrub forest, coppice - shrub forest, herbs shrub forest, econamic crop and cereal crops. the plant resources is valued according to the ornamental and green plant. lumber trees and medical plant. ornamental plant includes hosta plantaginea. lilium brownii van viridulum, spiraea cantomiensis and so on. lumber tuees includes zzzelkova schneideriana, emmenopterys henryi, catalpa fargesii and so on

    本文把洛塔現存植被分為自然植被與栽培植被兩大類進行研究，通過遙感技術對現存植被按針葉林、闊葉林、密灌、灌叢、草灌、荒草裸巖、農作物植被等類型進行分佈面積的統計，在此基礎上，以林產品價值、涵養水源價值、保護土壤價值和凈化空氣價值作為估算的主要參考依據，對已成林的針葉林與闊葉林進行森林生態系統的價值估算，得出面積為1388 . 8hm ~ 2的針葉闊葉林的森林生態價值為1836 . 37萬元，參照這一生態價值量，把洛塔植被按常綠落葉林、針葉林、針闊混交林、闊葉林、疏林?灌叢、矮灌叢、荒草灌叢、經濟作物和糧食作物，以每hm ~ 2的價值量提出了洛塔植被的綜合價值體系。
  6. First, the us import statistics has ignored entrepot trade and value added from entrepot trade to over - estimate its imports from china

    第一，美方的進口統計，因忽視轉口和轉口增加值而高估了從中國的進口。
  7. So we consider five financial indexes includes stock b / p, e / p, current stock size, current stock stru and financial levge by the international tradition, then descriptive statistical test method and cross section statistical test method proved that b / p and current stock size have marked effect on the securities yield besides coefficient b. in the third chapter, the article fut forward a risk factor model, estimates yield sequences of every risk factor by weight regression, and then estimates each risk factor coefficient of different stock by time sequence regression, at last we can reckon the portfolio risk o2p and yield rp which consists n stocks

    結合國際慣例，文章考慮了股票的凈值市價比（ b p ） ，市盈率倒數（ e p ） ，流通規模（ size ） ，流通比例（ stru ）和財務杠桿（ levge ）等五個財務指標，應用描述性統計檢驗和橫截面統計檢驗等多種方法，結果表明，除系數以外，凈值市價比（ b p ）和流通規模（ size ）對證券收益率部有重要的影響。在論文的第三章，提出了一個基於多因素的風險因子模型，並用加權回歸和時間序列回歸等方法估計出了不同證券的各風險因子系數（類似於單指數模型中的系數） ，據此，即可衡量出一個包括n只股票的組合的風險_ p ~ 2和收益率r _ p 。
  8. In order to improve the efficiency of classification based on feature matching, the method of azimuth estimation from sar image is studied. a method of target ' s azimuth estimation from sar image using peak featur e based on linear regression is proposed, besides goodish estimation accuracy and high computation efficiency, it can also provide the confidence interval of the estimation, which can meet the need of model - based sar atr system that uses feature very well

    為了提高基於特徵匹配的saratr系統的分類效率，論文進一步研究了sar圖像目標方位角估計方法，提出了一種利用峰值特徵基於線性回歸的sar目標方位角估計方法，該方法除了具有計算速度快、估計精度較高的特點之外，還能在估計方位角的同時，給出該估計的置信區間，從而能更好地滿足利用特徵基於模型saratr系統的需要。
  9. In other words, an estimate is a specific observed value of a statistic.

    就是說，估計值是指統計量的一個具體觀察值。
  10. In general, by utilizing observing instrument, estimates of systemvariable are obtained ; and the minimal energy control system principle isused to control the supply pressure so as to attain the goal of economizedconstant pressue water supply

    概括地說，就是應用觀測器，得到了狀態變量的估計值，並按最小能量系統控制規律控制供水k力，達到了恆壓供水的目的。
  11. This inverse filter can consider the efficacious bandwidth of signal tested and the character of measurement system synchronously so we can acquire the estimating value of signal tested and the error is little

    這種反濾波器兼顧被測信號的有效帶寬和測試系統的特性，能夠得到被測信號誤差很小的估計值。
  12. The unbiased predicted value or estimated value of gene main effects and gene treatment interaction can be used as precursor to clustering to make sure the inputs are statistically meaningful and of biological interest

    對基因主效應的無偏估計值和基因與處理互作效應的無偏預測值進行聚類可以獲得具有統計學和生物學意義的結果。
  13. These two models were used jointly to obtain some metricable characteristics of the process, including information on organization of standard software process, such as software scope, labor consumption and cost estimation. the aim of this combination is not only to perform statistics and metric after the process, but also to do estimation analyses when the program was established. thus, management and control of the process can be achieved

    在獲取過程的一些可度量特徵，如與組織標準軟體過程的使用有關的信息：軟體規模、工作量、成本的估計值時，考慮將這兩種模型結合使用，從而真正達到管理和控制的目的，不僅在事後進行統計和度量，而且在制定計劃時對要度量的軟體進行預估分析，有利於軟體過程評估； 3
  14. Then, took least squares estimator of test data as preliminary estimate, applied versatile maximum likelihood estimate method to treat test data, obtained the estimators of electrical connectors reliability characteristic values

    並以試驗數據的最小二乘估計值為初始值，應用極大似然估計方法對試驗數據進行統計處理，得出了電連接器可靠性特徵值的估計值。
  15. The real - time accurate parameters are then transferred to the stochastic optimal controller by the self - learning system to control the attitude of satellites

    學習系統將干擾白噪聲參數的精確估計值傳送至隨機最優控制器以獲得精度優良的控制效果，通過模擬研究表明了方法的有效性。
  16. The new system uses short base - line to avoid the long base - line phase illegibility to get the signal arrive angle with higher precision, then use the phase differences without illegibility and the arriving angle to detected the emitter ' s range

    該系統首先通過短基線測角，去除長基線接收機相位模糊，進而獲得更高精度的波達角度；然後通過無模糊的相位差側量值和波達角度估計值確定信號源與觀測站之間的距離。
  17. According to this characteristics, some new estimators have to be considered. leverage measurements were introduced into power system from factor space in 1996, which are crucial to estimations

    杠桿量測量是九十年代之後才從因素空間中引入到電力系統中的，由於它對整個因素空間中的估計值有決定性影響，因此對此進行研究很有必要。
  18. In addition, all the var methods focus on the central observations or, in other words, on returns under normal market conditions. however, var is a risk measure that relates solely to the tails of the distribution

    另外，所有的傳統var估計方法都是集中在位於分佈中部的觀測值，即正常條件下的回報，但尾部才是var計算中所最關心的。
  19. The escalation threshold should only be considered as an approximate value, because any locks required by internal operations count toward that threshold

    升級閾值應僅視為估計值，這是因為內部操作所請求的鎖都已計入閾值統計中。
  20. The complex system reliability mean and variance can be obtained based on component reliability information and the condition that the complex system can be decomposed into series or parallel systems

    在獲得單元可靠性的均值和方差的基礎上，利用系統可以分解為單一的串聯或並聯關系，通過逐步綜合獲得復雜系統的可靠性均值和方差估計值。
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