model accuracy 中文意思是什麼

model accuracy 解釋
模型精確度
  • model : n 1 模型,雛型;原型;設計圖;模範;(畫家、雕刻家的)模特兒;樣板。2 典型,模範。3 (女服裝店僱...
  • accuracy : n. 正確,準確(度);精確。 firing accuracy 命中率。 with accuracy 正確地。
  1. And the deficiencies are pointed out in present researches, such as highway capacity, level - of - service, influence factor of road alignments, etc. from these, it has confirmed that the thesis should be studied from rational analysis, quantitative analysis of level - of - service, impact on capacity of road alignments, setting - up simulation model, etc. the high - accuracy gps dynamic data acquisition appearance is proposed to be used for the first time to carry on the experiment of overtaking on two - lane highways, and experiment scheme is designed according to the driver ' s perceive to judge each overtaking course. based on the experiment data, it can get two important parameters of acceptant gap ? the critical gap of overtakable time headway and returnable time headway through data processing, which can offer the strong support to the research of two - lane highway capacity with qualitative and quantitative analysis. besides, the experiment methods is provided to observe overtaking ratio and to measure the

    研究中首次提出了運用高精度gps動態數據採集儀對雙車道公路上的超車行為進行觀測,設計了根據駕駛員感受度來衡量超車過程的實驗方案,並通過後期數據處理得到了超車過程中兩個重要的可接受間隙參數-可超車車頭時距和可回車車頭時距的臨界間隙值,為定性和定量分析雙車道公路通行能力提供有力的數據支持;同時,還提出了觀測超車率的實驗方法以及測量加速度干擾的實驗方案,統一了計算加速度干擾的時間統計間隔,為雙車道公路的服務水平量化研究奠定基礎;最後還簡單介紹了駕駛員問卷調查法和模擬程序中模型參數標定和驗證的數據採集方法。
  2. In this paper, ackerman steering linkage of double - wishbone suspension is taken as the study object, choosing the splitting joint and steering lever joint to carry out the design of optimization the mathematics models are established based on the multi - body system dynamics, applying its analysis method of kinematics to study the mechanism kinetic principles owing to more spatial factors considered, and calling off many hypotheses affecting the accuracy, compared with the traditional methods, the models are better to reflect the realistic motion principles, the results are more exact and applicable moreover, the force analysis is applied to the conduct mechanism the analysis method of dynamics in the multi - body dynamics is applied to study the forces applied on every component, working out the constraint reaction force of up and down ball joints, and developing the current computation program in the end, produce the upper wishbone geometry model in the ansys software package, meshing and carrying out the fea, testifying if the intensity of the wishbone meet with the requirements

    本文以雙橫臂獨立懸架的轉向傳動機構作為研究對象,選擇對斷開點和節臂球銷的位置進行優化設計,在此基礎上建立了基於多體系統動力學的導向機構和轉向傳動機構的數學模型,運用該學科的運動學分析方法研究機構的運動規律,編制了通用優化設計軟體。由於考慮了更多的空間因素,取消許多影響準確性的假設,因此建立的數學模型與傳統的方法相比更能反映實際運動規律,得到的優化結果也更加精確實用。此外,本文還針對導向機構進行受力分析,在建立該機構的空間動力學模型后,運用多體動力學中的動力學分析方法研究各個桿件的受力,計算出上下球鉸的約束反力,並開發出了相應的通用計算程序。
  3. It is superior to traditional multiple regression ' s calculating model and gp in model ' s astringency and predict accuracy

    該模型在收斂性能及預測準確率等方面優于基於傳統的多元回歸方法及gp方法的信用風險評估模型。
  4. The results of test demostrate both estimation and accuracy of solving model achieved satisfactory degree, so that the ballistic trajectory problem can be solved without the firing table

    測試結果表明,彈道綜合系數的估計比較準確,而解算模型在精度與實時性上均達到滿意的程度,具有高度通用化的特點,並且使彈道問題的解算可以完全脫離射表進行。
  5. Based on past researches on interpersonal perception and d. c funder ' s realistic accuracy model, this research examined the characteristics of interpersonal perception in internet chatting, including accuracy of interpersonal perception ( self - other agreement ), meta - accuracy, moderators of accuracy and meta - accuracy, the differences among self - ratings, other - ratings and metaperception, and moderators of likability. 84 undergraduate and graduate students interacted in internet by oicq one to one for thirty minutes, then completed a self - edit internet chatting questionaire including ratings on cattell ' s 16 personality traits and so on. the results showed that : ( 1 ) in internet chatting, perceivers were able to judge targets ' s some personality traits with some extent accuracy

    本研究在過去人際知覺研究的基礎上,以funder的現實的精確性模型為主要的理論依據,以84位在校大學生和研究生為被試,以卡特爾的16種人格特質為人格評價特質,採用自編的網上聊天的調查問卷以及人格特質特徵的評價量表,考察了網際網路網上聊天中的人際知覺的特點,其中主要包括網上聊天的人際知覺的精確性、元精確性、影響精確性和元精確性的因素(性別、與性別相關的刻板印象、知覺者和知覺對象的人格特點、網上聊天內容的真實程度、特質的可觀察性、社會期望值以及只憑言語內容來推斷某種特質的難易程度) 、自評和他評以及元知覺間的相互差異、影響聊天者受喜歡程度的因素。
  6. The definition of model fitness considers fully the accuracy and complicacy factors, and can get a trade - off identification solution

    關于模型適應度的定義,綜合考慮了精確性和復雜性因素,能夠獲取一種比較折中的辨識結果。
  7. Second, more feature points are extracted for advanced registration based on projective transformation. compared with the ordinary method, our method has a better robust feature with higher accuracy, it also has a fully automatic feature so it need little human intervention in the whole process. the image segmentation, feature extraction, feature correspondency, and transformation model of multi - modality medical image registration are also studied in this paper

    本研究的創新之處:針對rf和fa視網膜圖像的特點,提出了新的血管細化的新方案;在特徵點提取方面,提出了「三輪定心」這種新的特徵點提取方法;提出了由「粗配」到「細配」的混合配準方法;力矩主軸法用於圖像配準參數的估計及對應性尺度參數范圍的定值。
  8. An algorithm based on grey model to predict idle period for dpm is proposed in order to improve the accuracy of predicted results

    摘要為提高空閑預測的準確性,提出基於灰色模型的空閑預測演算法。
  9. A highly efficient numerical algorithm by using multi - grid method ( mgm ) is introduced to solve the three dimensional field distribution in the present paper. formulae of the restriction and prolongation in mgm computation is deduced, and a 3d program of mgm is accomplished, which can solve the field distributions in electron optical systems for various electrostatic lenses. the 3d field distribution in an electrostatic concentric spherical model is tested with mgm algorithm and an algorithm based on finite difference method ( fdm ) respectively. comparing these two results in view of computational efficiency and computational accuracy, it appears that mgm is superior to fdm in solving electrostatic field distribution for the electron optics problem. this paper shows that the 3d field computation using mgm greatly improves the computational efficiency of field distributions in electron optical systems and shortens the computational time

    本文將一種高效率的數值計算方法? ?多重網格法引入三維靜電場分佈的計算,多重網格法利用限制和延拓可迅速求得滿足精度要求的場分佈.研究了求解各種靜電透鏡電子光學系統三維場分佈的多重網格法程序,驗算了靜電同心球模型的三維場分佈.通過與目前在場計算中常用的有限差分法進行比較,可以看出多重網格法的計算效率和計算精度優于有限差分法.本文表明利用多重網格法計算三維場大大提高了場分佈的計算效率,縮短了計算時間,因此為后續計算打下了良好的基礎
  10. In order to assess the rationality and accuracy of the revised fhwa model, it was used under various road traffic conditions. the actual results were compared with the results obtained from the revised model

    為了檢驗fhwa修正模式的合理性和準確性,把這修正後的模式應用到其他高速公路在不同狀況下與實測結果的比較以及修正前模式的比較。
  11. By using both the prediction model from transportation ministry and the fhwa models, the prediction results were analyzed for high ways at different sections, different design speeds, detection points, traffic volumes, distances, heights, and at various other road conditions. the prediction results and the actual results were compared and the accuracy of prediction were assessed

    本文通過比較分析了fhwa預測模式和交通部預測模式在高速公路不同監測路段、設計時速、測點、車流量、距離、高差、地面狀況條件下的預測結果,並對預測結果和實測結果進行預測精度和變化趨勢的比較研究。
  12. Proceed from the angle of enhancing the backing off grinding accuracy of the special shaped convex curved rake surface, and in accordance with the enveloping theory of differential geometry and the designing model of new configured carbide gear shaper cutters, the mathematical model for backing - off and grinding the special shaped convex curved rake surface of the new configured gear shaper cutters was derived

    從提高新構形硬質合金插齒刀異形凸曲前刀面鏟磨精度的角度出發,根據微分幾何的包絡理論及新構形硬質合金插齒刀設計模型,推導出鏟磨新構形插齒刀異形凸曲前刀面的數學模型。
  13. 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。
  14. To accurately predict forming limit, a criterion to reflect material performance in essence was indispensable besides increasing the fea model accuracy

    為了準確地預測成形極限,除了提高有限元模擬精度外,應找到一種本質地反映材料性能的韌性斷裂準則。
  15. As a result, the mdl principle can attain higher model accuracy while the model complexity is lowest

    因而, mdl準則可以確保用最低的模型復雜性達到高的模型精確度。
  16. By exploiting feedback adjustment, the proposed algorithm requires less model accuracy, together with decreased computation and fastened speed

    該演算法實現了模型的在線反饋校正,對模型的精度要求不高,且運算量較小,速度較快。
  17. Wavelet neural - networks is used to compensate inverse error of dynamic inversion controller brought by error of model accuracy in this dissertation

    本文針對由於模型精度所引起的動態逆控制器的逆誤差,採用小波神經網路來實現補償。
  18. According to the absolute value of correlation coefficient, the degree of correlation between input and output variables can be estimated and selected or not, which not only increases the neural network mathematical model accuracy, but also reduces the complexity

    通過其相關系數絕對值的大小來判斷該輸入量與輸出量的相關程度,進而對其進行取捨。該方法不僅可以提高神經網路數學模型的準確度,而且還有效的減小模型的復雜性。
  19. The primary works and innovations of this paper include but not limited to : ( 1 ) considering the nonlinear, time - varying and uncertain characteristics of networks, a new active queue management ( aqm ) algorithm, i. e. nnpc - aqm was proposed based on predictive control theory, which requires less model accuracy. in order to realize fast control, a predictor was constructed using two - layer linear neural network to predict the future queue length, and a controller was composed using two layers of nonlinear neural network to optimize the next control volume, i. e. drop probability

    本文研究的主要內容及創新點如下: ( 1 )針對網路的非線性、時滯、不確定特點,結合預測控制理論提出一種新型主動隊列管理( aqm )策略nnpc - aqm ,該演算法基於單值預測控制思想,為了實現快速控制,採用兩層神經網路構造預測器,估計未來時刻隊列長度;採用兩層非線性神經網路組成控制器,實現對下一步丟棄概率的優化。
  20. Although the research of industrial robotic manipulators and their control algorithms has had a long history, it ' s difficult to apply many algorithms to real plants because of the high non - linearity, high coupling, time variation of the system, problem in model accuracy, computation consumption and equipment costs

    工業機械手及其控制演算法研究已經有了幾十年的歷史。但是由於工業機械手是一個高度非線性、強耦合、時變的系統,模型精度問題、龐大的計算量和設備成本成為了很多理論演算法投入生產實踐應用的「瓶頸」 。
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