隨機效用模型 的英文怎麼說

中文拼音 [suíjīxiàoyòngmóxíng]
隨機效用模型 英文
random utility model
  • 隨 : Ⅰ動詞1 （跟; 跟隨） follow 2 （順從） comply with; adapt to 3 （任憑; 由著） let （sb do as he li...
  • 機 : machineengine
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 用 : Ⅰ動詞1 （使用） use; employ; apply 2 （多用於否定: 需要） need 3 （敬辭: 吃; 喝） eat; drink Ⅱ名...
  • 模 : 模名詞1. （模子） mould; pattern; matrix 2. （姓氏） a surname
  • 隨機 : random stochasticrandom
  • 效用 : effectiveness; efficacy; efficiency; utility; usefulness; avail
  • 模型 : 1 （仿製實物） model; pattern 2 （制砂型的工具） mould; pattern3 （模子） model set; mould patter...
  1. At first, this paper analyzes the factors of water - sand influencing water level of yellow river and the feasibility just using the factors of water - sand to study water level, and collects the corresponding data ; secondly, because there are strong nonlinear relation in the corresponding data, by meticulous theory analysis, this paper integrates basic nonlinear analysis method, theory of random analysis, method of least squares and so on. it puts forward a method which can get the high accuracy simulation of the data, perfects the multi - factor analysis of variable ( over three factors ) of the statistic ; thirdly, it applies the method to the approximation of corresponding water level process which belong to the capacity of sand of middle - high and middle - low, and get the high - accuracy simulation about the typical nonlinear relation ; at last, this paper definitudes the main influence mode that the capacity of sand. it mainly unite with other factors to work on the water level in the yellow river lower reaches ; mor eover, this paper analyzes the difficult point and the direction of improvement to realize the accuracy forecasting of the flood level of erodible - bed channel

    首先，系統分析了影響黃河水位的水沙因素，及僅用水沙因素有效研究水位的可行性，並按變量對應思想採集它們的相應數據；其次，由於相應水位過程數據中含極強的非線性關系，本論文經細致的理論分析，將基本的非線性分析方法、統計建模方法、隨機分析理論、最小均方誤差原則等等數學理論及方法有機揉合，提出了能有效實現這類數據高精度擬合的分層篩選法，並改進了統計學中多因子（三個以上）方差分析法；再次，將這一方法用於黃河中高及中低含沙類洪水相應水位過程的擬合，實現了這一典型非線性關系的高精度擬合，各年汛期上下游相應洪水位過程的擬合誤差都較小；最後，明確黃河下游含沙量對水位的主要影響方式，即含沙量主要是與其它因素聯合對水位作用；另外分析了要實現變動河床洪水位過程準確預報的困難所在及改進方向。
  2. From the model study of the fractal random rough surface, we acquire one dimensional ? two dimensional fractal random rough surface model with fractal theory ; 2. the calculation of the scattering field of light ; the establishment of the scattering light ’ intensity model, and the number calculation of the intensity distribute ; 3. the study on the laser radar cross section of one - dimensional fractal rough surface target ; and the number calculation of the scattering intensity of two - dimensional fractal the rough surface target ; 4. through shadowing effect, we analysis light scattering characteristic of fractal rough surface

    本論文利用分形理論得到一維?二維分形隨機粗糙表面模型，研究光在一維?二維分形粗糙表面的光散射特性，主要從以下四個方面分析: 1 .自仿射分形隨機粗糙表面模型探討，採用分形理論得到一維?二維分形隨機粗糙表面模型; 2 .分形粗糙表面散射光場的計算和粗糙表面散射光強角分佈的模型建立和數值計算; 3 .一維分形粗糙表面目標的激光雷達後向散射截面lrcs研究和二維分形粗糙表面目標散射強度數值計算; 4 .引入遮蔽效應分析分形粗糙表面光散射特性。
  3. 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
  4. With the development of the network and the multi - processor system, the research, simulation and the impemeni of the system - level fault diagnosis which is the very important means to increase the reliability of the system, are becoming more and more important. on the system - leve1 fault diagnosis, based on the group theory of system - level fault diagnosis that has been put forward by pro f zhang, the paper constructs newly the theory bases, improves on the matrix method, reinforces and consummates group arithmetic of all kinds of test mode, for the first time, analyses and discusses the equation solution of all kinds of models, so al1 the consistent fault patterns ( cfp ) could be found, straightly and high efficiently, even if the sufficient and necessary condition of t - diagnosable is dissatisfied and the complexity of system - level fault diagnosis is greatly decreased, especialy in strong t - diagnosabl6 system. last the simulation system ' s function has been extended and the application hotspot and the development trend have been disscussed

    本人在張大方教授等人提出的基於集團的系統級故障診斷的理論基礎上，重新構建了系統級故障診斷的理論基礎，定義了系統級故障診斷測試模型的三值表示；改進了系統級故障診斷的矩陣方法，重新定義了測試矩陣、鄰接矩陣、結點對、結點對的相連運算、極大準集團和斜加矩陣，由此能直觀、簡便地生成集團和極大獨立點集；補充和完善了各類測試模型的系統級故障診斷的集團演算法，通過定義集團測試邊和絕對故障集，簡化了集團診斷圖，由此能較易地找到所有的相容故障模式，即使不滿足t -可診斷性，大大減少了系統級故障診斷的復雜度，尤其是對強t -可診斷系統；首次分析探討了各類測試模型的方程解決，由此從另一角度能系統地、高效率地求出所有的相容故障模式（ cfp ） ：擴充了系統級故障診斷模擬系統的功能，快速、直觀和隨機地模擬實驗運行環境，進行清晰和正確的診斷，同時提供大量的實驗數據用於理論研究，優化演算法和設計。
  5. The bouc - wen differential equation model is used in modeling the hysteretic characteristics of these components. the pem ( pseudo excitation method ) combined with the elm ( equivalent linearization method ) is used to analyze the non - linear random vibration of such structures

    採用bouc - wen等提出的微分方程模型描述進入非線性構件的滯變特性，運用虛擬激勵法結合等效線性化進行結構非線性隨機振動分析。
  6. Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively

    本文對大圓環直線感應電機進行了深入細致研究，內容包括： （ 1 ）本文採用有限長行波面電流作用於有限長鐵芯上的模型，引用了氣隙磁場一維解，研究了單層繞組磁場，奇數極半填槽雙層繞組在採用整距和短距時磁場的分析、比較，簡單介紹了二維解； （ 2 ）用有限元軟體ansoft對大圓環直線感應電機空載氣隙磁場進行了靜態分析，並分析了結果； （ 3 ）用軟體進行了額定電壓下的瞬態分析，得到了轉矩，位移，轉速隨時間變化曲線圖，利用單極性霍爾元件測定轉速並與軟體計算結果進行了比較，採用等效電路法計算了堵轉時的最大電磁力並做實驗進行了驗證，由實驗測得了三相電流波形，並與計算結果進行了比較，對其不對稱性進行了定性分析。
  7. Finally, the thesis developed 3d animation flight simulation platform for helicopter using opengl in visual c + +. and the 3d terrain and helicopter model are constructed. the simulation of two typical maneuver ( s maneuver flight and bopup - bopdown ) and terrain following shows that the fight control system of attack helicopter is improved by the realistic optical impact

    本文最後在vc環境下用opengl開發了直升機三維動畫模擬平臺，構造了三維地形和直升機模型，模擬了直升機做蛇形機動、急躍升急躍降、地形跟隨等機動飛行，通過逼真的視覺效果驗證了飛控系統的正確性。
  8. Focused on the technique, interaction and result of visualization, the system for transitional state visualization is put forward, which effectively promotes the transfer, analysis and synthesis course of transitional information with better visualizability, figurativeness and maneuverability. the main work of this dissertation is as follows : the main characteristics of transitional state, such as fuzziness, randomness, fractal and chaos, are concluded. based on the combination of the fuzzy mathematics, stochastic process, fractal and chaotic theory, the feature description model of transitional state is put forward to make itself the foundation of following visualization methods and applications

    論文的主要工作包括：系統地提出了過渡狀態的特徵刻畫模型，概括了過渡狀態的模糊性、隨機性以及分形性與混沌性等主要特性，結合模糊數學理論、隨機過程理論以及分形理論與混沌理論等，以過渡率、過渡集合等作為特徵刻畫模型的主要內容，以過渡映射作為特徵刻畫的形成過程，有效地描述了過渡特徵的漸變過程，為可視化方法與應用的具體實現奠定了理論基礎。
  9. Hust - caid ( computer aided industry design system developed by harbin university of science and technology ) is a parametric modeling design system based on feature. this system describes entities based on mixed model of boundary representation 、 csg tree and feature description tree ( fdt ), in which the design of solid model and feature - editing can be completed with rebuilding csg tree and feature description tree. but, in the feature modeling, with the number of features increasing, the design model becomes more and more complex. the efficiency of designing is decreased

    Hust - caid （哈爾濱理工大學計算機輔助工業造型設計系統）是一種基於特徵的參數化造型設計系統。該系統在基於b - rep 、 csg樹和特徵描述樹（ fdt ）的混合模型基礎之上，利用重用csg樹與特徵描述樹的技術，來完成實體模型的設計與編輯工作。但在特徵造型過程中，隨著造型體數目的增加，設計模型將變得越來越復雜，由此導致了系統設計效率的降低。
  10. The thesis comprehensively deliberates stochastic and fuzzy character of controlling the cost of engineering construction ; it takes quantitative analysis as the dominant factor, takes qualitative analysis as the secondary factor, establishes an comprehensive system of controlling the cost, and make various theories, the basic principles and the methods of engineering maths in the analysis and calculation of controlling the cost of engineering construction, such as effect theory, fuzzy maths, value engineering, grey system and system simulation. it also establishes the simple and effective practical model. on the basis of practical example, it puts forwards the train of thought and method to controls the cost of engineering construction in the different stage

    本論文綜合考慮了工程造價控制的隨機性和模糊性，以定量分析為主，定性分析為輔，構造了造價控制的綜合體系，將效用理論、模糊數學、價值工程、灰色系統、計算機模擬等多種理論及工程數學的基本原理和方法應用到工程項目造價控制的分析和計算中，建立了簡便而有效的實用模型，並結合工程實例，提出來了不同階段工程造價控制的思路和方法，針對不同的情況，綜合應用定性與定量的控制方法，消除了以往工程項目造價控制只停留于項目實施階段的缺陷，提高了量化研究的水平和準確性，為政府建設管理部門進行科學管理及各建設參與單位今後進一步改進自身的項目造價管理工作提供了寶貴的理論依據。
  11. With the material dynamic constitutive equation including damage and the effect of stain rate the predictable formula about ballistic limit velocity of fiber composite target. secondly based on the damage feature about ceramic / fiber composite target caused by impact load, analysis model about defense performance of ceramic / composite material target is formed and the predictable formula about ballistic limit velocity is also given. lastly using the reflection and projectile theory of stress wave the paper discusses the design of ceramic / composite material target, optimizes the design of double layer ceramic / composite targets, gains optimal coefficient under certain area density and discusses the variety relationship of area density and thickness with optimal coefficient u nder some ballistic limit velocity 3

    首先，分析了纖維類正交鋪層復合靶板在沖擊載荷作用下的損傷破壞機理，結合包含損傷和應變率效應的材料動態本構方程，建立了纖維復合材料板彈道極限速度的預測公式；其次，根據陶瓷/纖維材料復合靶板在沖擊載荷下的破壞特點，建立了陶瓷/復合材料靶板抗彈性能分析模型，給出了彈道極限速度預測公式；最後，利用應力波反射和透射理論討論了陶瓷/復合材料靶板的設計問題，對雙層陶瓷復合靶板的優化設計進行了分析，給出了在一定面密度下的最佳優化系數，討論了一定彈道極限速度下的面密度和厚度隨優化系數的變化關系。
  12. Certain discrepancy remain between the simulation results and the experiment results, not only caused by the turbulent model, but also by the simplification of the inlet boundary condition and the mesh generation. modeling gas - particles interaction flows is complex. in this thesis, gas - phase transport equations coupled with the gas - particle interaction are derived based on the dsm turbulent models to handle the interaction of momentum and kinetic energy of turbulence between the gas and particles

    分離器內的固體顆粒運動採用涉及湍流擴散影響的隨機軌道模型和確定軌道模型，同時在湍流模型中加入了顆粒影響的源項，在流場計算的基礎上，模擬了不同直徑的顆粒在分離器內的運動規律及顆粒分離效率，並同理論和實驗得到的數據進行了比較。
  13. ( 4 ) according to analysis of water resources characteristics of the dam system, following conclusions are obtained : amount of yearly available water resources of the dam system presents uncertainty ; water resources utilization by the dam system should focus on fully utilization of rainfall, runoff and flood ; meanwhile, water resources exploration of the dam system should reach the objective of maximum economic benefit in years ; a modeling system for water resources utilization and exploration by the dam system is established on the basis of reasonable investment and above objectives

    對壩系水資源的特點進行了深入研究，得出以下結論：壩系水資源年可利用量具有較大的隨機性；開發利用壩系水資源就是充分利用降雨和徑流洪水；壩系水資源開發應以多年經濟效益總體期望值最大為目標。同時引入了最佳水資源投入量的概念，並建立了壩系水資源開發利用模型。
  14. Design : the medline and the cochrane library databases were searched for studies conducted from 1966 through 2005. relative risks were pooled by using an inverse - variance weighted random effects model

    設計：搜索medline和冠心病圖書館數據庫中從1966年到2005年的研究，採用一種反變量加權的隨機效應模型計算相對危險度。
  15. 1. upon brief reviewing current mathematical and physical models and mechanisms for electrorheological effect, the theoretical analysis of the dielectric relaxation of electrorheological fluids and the frequency - inducing characteristics for electrorheological effect are conducted. based on statistical thermodynamic analysis and osmotic pressure calculating of an electrorheological fluid complex system, phenomenological theory is adopted to evaluated phase reparation characteristics. thus critical factors corresponding to experimental results are introduced

    在簡要評述現有電流變效應模型及機理的基礎上，按非均勻介質對雙相復合懸浮液的電流變效應進行理論分析，研究了電流變效應頻率誘導特性；基於復合系統滲透壓的計算，採用統計熱力學唯象理論，討論了電流變效應的相分離特徵，獲得了與實驗吻合的臨界參數；首次將定向滲流模型應用於電流變體臨界體積濃度的分析，得出一個描述電流變流體特徵而不隨外加電場變化的臨界體積百分數為0 . 37 。
  16. In this paper, a new utility function is put forward to evaluate the value of traveling time based on random utility model, which includes passenger ' s income besides cost and time

    在隨機效用函數理論的基礎上對旅客的時間價值進行了深入研究，提出了一種新的效用函數的構建方法和模型參數標定演算法，其不僅考慮了傳統的旅行費用和旅行時間，而且進一步考慮了旅客收入這一因素。
  17. Employing the random walk model, the white - noise models and nonlinear models to test the weak efficient market of china " s capital market, this essay find that china " s capital market hasn " t reached the lowest efficient market

    本研究採用隨機遊走模型（ therandomwalkmodel ） 、白噪聲過程模型（ thewhite - noisemodels ）和非線性模型（ nonlinearmodels ）對我國資本市場進行弱型有效市場檢驗，結果表明，迄今為止我國資本市場還沒有達到最低層次的有效市場狀態。
  18. The essay analyzes the passenger ' s preference among multiple transportation modes, and establishes reasonable configuration model and algorithm for passenger transport structure in integrated transport system based on the random utility theory and analytical hierarchy process

    摘要分析在多種交通方式存在情況下乘客的交通選擇行為，並基於隨機效用理論和層次分析法構造了綜合運輸體系下客運結構合理配置模型及演算法。
  19. For power control of listening users, forward power control method are introduced based on full, multichannel, filtered report, and collision method etc. the full report method has redundancy report information, and its real - time performance is bad, multichannel report is introduced to improve the real - time performance, and filtered report is introduced to eliminate the redundancy information, finally the collision method introduced can not only get higher real - time performance but also diminish the redundancy information ; 2. in order to meet the requirements of making the dynamic simulation of trunking group system, the ms ’ s random move equation is brought forward, the simulation of ms ’ s distribution is done and the integrated channel model are presented ; 3. the smart predicative model of power control is introduced to overcome the delay and track the change of the complicated network, with this model, the power control ‘ s performance is greatly improved

    全匯報方法存在冗餘的匯報信息，而且實時性較差，為了改善實時性提出了多通道的匯報方式，為了改善冗餘匯報而提出了篩選法，最後介紹的碰撞法在減少冗餘信息的同時又提高了實時性;二、為了集群功率控制動態模擬的需要，提出了移動臺的隨機運動方程，進行了有關移動臺的分佈模擬，建立了綜合的通道模型;三、希望克服延時和跟蹤復雜網路環境變化，提出了功率控制的智能預測模型，通過智能預測模型可以改善功率控制的性能，著重介紹了採用神經網路的方法實現智能預測的通用模型，從而跟蹤復雜多變的無線環境，諸如慢衰落及快衰落（包括多徑衰落、多普勒效應所引起的衰落）等網路特徵，達到預測功率需求;四、採用二級正交碼和智能天線（空分多址）的方法進行組內用戶的識別，改進功率控制效果;五、話權用戶的前向和反向功率控制方法;六、對引入gota的cdma系統提出了復合容量表示方法，並作容量分析，探討有關gota系統的qos問題。
  20. Linear mixed model is a kind of linear models, which includes both fixed effects and random effects. it is frequently used in biology, medicine, economics, determining, sampling designs and quality control procedures, and so on

    線性混合模型是既包含固定效應又包含隨機效應的一類線性模型，它被頻繁的應用於生物、醫學、經濟、抽樣設計和質量控制等過程。
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