有效估計量 的英文怎麼說

中文拼音 [yǒuxiàogūjìliáng]
有效估計量 英文
efficiency estimate
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 估 : 估構詞成分。
  • 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...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 有效 : effective; valid; efficacious
  • 計量 : calculate; estimate; meterage; metering; batching; measure
  1. Through the inspecting, the author selected three methods of eradiate noise ' s feature extraction. the methods include the pedigree, e - filter, fractal. in those methods, the pedigree is based on frequency field, the e - filter is based on the energy field and the fractal is based on time field

    本文作者經過考察，採用了三種前期研究中較為有效的水下目標特徵提取方法? ?基於功率譜估計的線譜特徵提取方法、基於小波分析的不同頻段內能量特徵提取方法和基於水聲信號分維特性的特徵提取方法。
  2. Abstract : since the multiple failures situation is not uncommon in the clinical medicine, we explore the use of proportional odds model to the multivariate interval - censored data. the approach is based on the conditional logistic regression, which prevents the complications in the existence of nuisance parameters. the estimation of parameters is obtained by the newton - raphson algorithm. the sandwith estimator for the covariance is made according to the situation where there is correlation in the score statistic. simulations are also presented to assess the accuracy of the procedure

    文摘:探索比例優勢模型在臨床醫學中常見的多結局區間截斷數據中的應用.用條件的邏輯回歸方法避免討厭參數的估計，用牛頓-拉普森演算法估計回歸系數，用"夾心方差"估計量作為參數方差的估計.通過隨機模型檢驗模型應用的有效性
  3. Then we present a toa / tdoa data fusion model based on mathematical statistics for radiolocation in cellular network, and fuse toa / tdoa measurements through a best linear fusion method and a mobile position based dynamic location algorithm, which shows good performance of robustness and accuracy

    然後，從數理統計的角度出發，構造了一個toa和tdoa進行位置估計的數據融合模型。主要利用一種最佳線性融合策略和基於移動臺位置的動態定位演算法對toa和tdoa測量數據進行融合，有效的提高了演算法可靠性和準確度。
  4. The paper introduces the risk analysis and evaluation method of engineering investment based on fuzzy mathematics and a new way of calculating steelyard weight. the new way of calculating steelyard weight remedies the limit of the common way and reduces the time of calculating. the paper keeps the principle of synthesizing the way of the qualitative analysis and quantitative analysis

    文章介紹了基於模糊理論和一種新的權重系數計算方法對工程項目投資進行風險分析和評估，這種新的權重系數計算方法彌補了常規方法的局限性，並大大地減少了計算量，遵循定性分析與定量分析相結合的原理，將模糊理論與這種新的權重系數計算方法有效的結合在一起。
  5. Only by a combination of pedagogical theories and teaching expertise with the merits of new technology, could the teacher design effective teaching strategies that take into consideration all the aspects of the classroom teaching, e. g. the types of media, the size and difficulty of information, as well as the topicality, feasibility and evaluation of the tasks

    教師只有把自身的理論知識和教學經驗及新技術的優勢相結合，控制好媒體類型、信息量及難度、任務主題、有效性及評估等課內外、教與學的每一個環節，才能設計出最佳的教學策略。
  6. The eso compensated by model provides the estimate of the unmeasured system ' s state and the real time action of the unknown disturbances, then improves the performance of the system

    具有模型補償功能的擴張狀態觀測器可以獲得系統的狀態估計和未知外擾的實時作用量，使系統性能得到有效補償。
  7. Based on the correct evaluation of the means and covariance of the measurement error in cartesian coordinate system, the algorithm processes the radar measurements sequentially, and the linearization of measurement equation is no longer neccessary

    作者推導了有測速數據時的去偏轉換卡爾曼濾波演算法。此演算法估計精度和計算效率比以前的方法有較大改善，對測量方程不做近似處理。
  8. ( 5 ) parameterization of infrared satellite cloud imagery and its application in rainfall predication obvious correlation exist between the probability of rain and parameterization estimate such as average brightness temperature ( tb ), brightness temperature variance ( f ), equivalent cloudage ( cn ), brightness temperature area index ( al - the first a5 - the fifth grade, a6 - the sixth grade )

    （ 5 ）衛星雲圖參數化及在降雨預測中的應用紅外衛星雲圖參數化估計值，與局地降雨過程的發生、發展具有較為密切的關系。相關較密切的參數有平均亮溫、亮溫方差、等效雲量、亮溫面積指數（ 1級、 5級、 6級） 。
  9. During the instantaneous frequency estimation of lfm, there exists some error in the edge, so in the dissertation, a fitting method is proposed to modify it. from the computer simulation, the following result is obtained : for cw, the method based on cwt is most effective, and with the snr rising, the error curve of it is more and more closer to crb. for lfm, the method based on wvd gives the best result, and the effects of cwt and stft are similar for multi - component signal, compared to stft and wvd, cwt is a better choice

    通過模擬發現，在單頻回波的瞬時頻率估計中，基於cwt的方法最為有效，隨著信噪比的提高，其均方誤差曲線越來越接近克拉美?羅界；在線性調頻回波的瞬時頻率估計中， wvd法得到的效果最好，而cwt與stft法的估計效果比較接近；在多分量信號的瞬時頻率估計中，相對于stft和wvd法， cwt法是一個更好的選擇。
  10. Tricepstrum equalization algorithm ( btea ) and super - exponential ( se ) algorithm based on block data estimation is studied, and these algorithms use hos explicitly. their performance, such as estimation variance and bias, is analyzed. a kind of sparse cross cumulant and sparse equalizer is proposed to simplify the se algorithm, and the simulating results show efficient reduction in complication

    ?研究了幾種直接使用高階統計量的演算法，包括基於數據段估計的倒三譜演算法和超指數演算法，分析了演算法的估計方差和偏差等性能；由於超指數演算法計算量較大，不利於實時均衡，利用水聲通道的稀疏性，提出了一種基於稀疏互四階累積量和稀疏權的演算法，有效降低了超指數演算法的計算量。
  11. Forty - three undergraduates are included in the training group, who are pre - tested, after - tested and in follow - up survey with diflerenlial loneliness scale, interaction anxiousness scale, texas social behavior inventory and beck depression inventory. forty - two undergraduates are included in the control group, who are pre - tested and in follow - up survey with the same scales. the results suggested that ( 1 ) group guiding is an effective and practical method to improve the undergraduates " emotional state and emotion adjustment ability ; ( 2 ) group guiding with a series of psychological training courses has significant effects in improving emotional state and emotion adjustment ability for a short term and a long term ; ( 3 ) interaction anxiousness scale, texas social behavior inventory and beck depression inventory " are good scales in evaluating emotional state. ; ( 4 ) the series of psychological training courses still need further developing and improving

    採用訓練組與控制組對照，訓練組前測、后測、追蹤和控制組前測、追蹤的時間序列設計，通過設計一套有關情緒的心理訓練課程，對43名大學生分組進行心理訓練，結果發現： 1 ）團體心理指導是改善大學生情緒狀態和提升情緒調節能力的一條可行而有效的途徑，且值得嘗試和推廣； 2 ）情緒團體心理指導訓練對改善大學生情緒狀態和提升情緒調節能力具有良好的短期效果和長期效果； 3 ）交往焦慮量表、德克薩斯社會行為問卷、 beck抑鬱問卷是良好的情緒評估的客觀量化指標； 4 ）情緒訓練課程有待于進一步發展與完善。
  12. Therefore this paper proposes the delay equalization algorithm which can both guarantee the qos of high priority traffic and effectively reduce the delay of ubr traffic in broadband satellite network. it is based on the prediction and equalization the delay of vbr or abr traffic so that the saved slots can be allocated to ubr traffic. the approach of dynamic alternation slots between vbr and ubr traffic can improve the mean tdma frame utilization while reducing the delay of ubr traffic

    因此本文在基於流量估計的資源調度演算法基礎上，提出了一種在寬帶衛星網路下能夠保證高級別類業務qos ，同時又能夠有效地降低ubr業務時延的時延均衡（ delayequalization ）調度演算法，它是基於對vbr或abr業務時延的預測，均衡時延的方法，保證vbr或者abr業務qos的同時，將節省的時隙分配給ubr業務。
  13. Aiming at regression analysis of prediction variable with error, this paper discusses the estimation of regression of coefficient, and a method is given

    林業科學試驗的預測模型中往往帶有測量誤差，此時回歸系數的估計不具有無偏性。為解決這一問題，從合理安排試驗的角度，給出了一個有效的解決辦法。
  14. Acoustic intensity detection can efficiently estimate objective direction, and frequence partition, beam revolving and vector equations can differentiate multi - object

    聲強檢測可以有效地進行目標方位估計，利用頻帶劃分、旋轉波束、矢量方程組可以在一定程度上有效地解決多目標干擾的問題。
  15. New developments in decision theory, artificial theory and dynamic analysis method are applied to evaluation the possible projects. the main contents in this paper are included as follows : first, has improved an format reasoning method based on multiple attribute utility model and knowledgebase theory ; second, has proposed complex utility model by improving the theory of multiple attribute utility ; third, has presented a kind of weapon intelligent decision support system, based on the complex utility model and developed with com / dcom criterion ; forth, this paper also has build the dynamic simulation model for long - rang multiple tube rocket launcher system, and the tire dynamic model has applied in the rocket launcher system dynamic simulation model ; fifth, through building the rocket - launcher contact model, this paper has analyzed the dynamic forces between the rocket and launcher ; finally, this paper has build the evaluation model of the project about improving existing rocket launcher to the launcher that using canister, and get the conclusion through using the widss. the studies in this paper not only proposed scientific warrant to the choice of projects in this pre - studied national defense task about improving existing rocket launcher to the launcher that using canister, but also can give other studied tasks with decision supported

    主要內容包括：在總結決策分析與專家系統規則庫技術的基礎上，提出了融決策分析與專家系統規則庫技術於一體的形式化推理機制，該機制能有效的將定量計算和定性知識融為一體，將規范的決策分析解題過程與專家系統特有的演化推理方法有機結合起來；在多屬性效用理論的基礎上，建立了一般形式的復式效用模型，並實用化了全相關乘式效用模型，提供了較完善的通用建模、分析和解釋功能：引入了com dcom組件技術，開發了基於組件的widss系統，該系統基於形式化推理機制，易於擴展，能夠面向多種決策問題，具有較強的通用性；建立了遠程多管火箭炮全炮動力學模擬模型，將充氣輪胎動力學模型、輪胎和路面的相互作用模型運用於多管火箭炮動力學模擬計算中；利用碰撞接觸理論，對火箭彈在定向器管內的運動受力情況進行了模擬計算；建立了遠程多管火箭炮箱式發射改進方案模型，並利用動力學模擬計算結果在widss系統中進行了方案性能評估。
  16. The paper demonstrates the whole plan of the propagation model application software. with the delphi software, an application software including the function of the realtime calculating path loss value is compiled completely. the paper analyses the planning theory of the td - scdma network. its main aspects include the backbone of the network, the link budget report, the budget of the effective distance, the analyse of the link interference and the analyse of the system capacity

    論證了td - scdma傳播模型應用軟體整體方案，利用delphi軟體編寫了具有校正功能和實時計算傳播衰耗值功能（與gps系統配合）的應用軟體。論文從理論的角度分析了td - scdma網路的規劃理論，主要從網路拓撲結構、上下行鏈路功率平衡預算報告、有效通信距離的估算、上下形鏈路干擾的分析和系統最大容量分析五個方面進行了論述。
  17. To evaluate maximum and minimum stocks and have effective stocks. to carry out spot checks

    估計最大和最小庫存量，確定有效庫存量。執行現場檢查。
  18. First, the standard errors computed under the assumptionthat the error term is independent identical distribution will be biased. second, theassumption of independence is unlikely to satisfied. in the panel data analysis modelwith hierarchical structure, hierarchical effects, nested effects, time effects are seted. then the dissertation deduced parameter estimation and hypothesis test statistic andits probability distribution and analyze the hierarchical panel data set : eastern china, central china and western china are the top level, and the prc ’ s province, cities, and autonomous regions are bottom level

    然後針對目前面板數據分析過程中存在的兩方面問題，即一方面在利用面板數據模型進行分析時，標準誤差的計算是基於誤差項相互獨立並且同分佈的假設，如果誤差項是相關的將會造成估計有偏的後果;另一方面關于獨立性這一假設本身就難以滿足;提出多層嵌套面板數據模型，設定了層效應、嵌套效應以及時間效應參數，研究了多層嵌套模型的參數估計量和假設檢驗統計量及其分佈。
  19. But according to the concluding process of dd model, actually the residuals from dd model regression, are only the proxies of the estimations errors of current accruals. but total accruals contain current accruals and non - current accruals, so if we directly use the proxies of current accruals as the proxies of total accruals, is it correct ? jones model is usually used to calculate the abnormal accruals reflecting the extent to which the management manipulate the earnings, but the management intent to manipulate is unobservable and likely idiosyncratic and sporadic

    但從理論上分析，由於利用dd模型回歸計算殘差過程中未考慮非流動性應計，因此該殘差中未能含有非流動性應計的錯誤信息，可能會使該指標在計量盈餘質量時產生一定的噪音;對于瓊斯模型，其更多地反映的是基於管理者有一定意圖的盈餘管理，而不能有效地計量無意圖的評估錯誤，因此使用該指標也可能會在計量盈餘質量時產生一定的誤差。
  20. We say that ols estimators are asymptotically efficient among a certain class of estimators under the gauss - markov assumptions

    我們說在高斯-馬爾可夫假定下ols估計量是漸近有效的估計量。
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