decision variable 中文意思是什麼
decision variable
解釋
決策變量-
But my focus was specially laid on the decision - making of investment under uncertainty and with competition, i first. extend the basic model of dixit & pindyck ' s by allowing the relevant parameter to be a random variable, then proposed an numerical example to show how to solve this model, i gave the algorithm and did the comparative static analysis, finally i developed a model of duopoly under uncertainty, considering the competition between the firms explicitly, using roa, i calculated the two firm ' s values respectively when they take different roles - to be leader or follower, and then checked the possible equilibriums
本文的重點是考察在同時存在不確定性和競爭的情況下，如何用實物期權的理論估算投資項目的價值，為此，文中發展了兩個模型，第一個模型是對dixit & pindyck的模型的擴展，它通過一個相關的隨機變量來考察競爭對項目價值的影響，但沒有考慮企業間的相互博弈，文中給出了一個例子詳細地說明了該模型的求解並做了敏感性分析；第二個模型是一個不確定情況下的雙寡頭模型，文中給出了用實物期權方法計算的兩企業在處于領導者和跟隨者兩種不同境況時的價值，並將企業間的相互博弈考慮在內，考察了可能的均衡狀態。 -
A rate - dependent damage evolution modified zwt nonlinear constitutive ralation is adopted, an object function of least square was established according to the experimental results. the searching space of each decision variable was foreordained with conventional optimizing method, and all parameters in zwt model for solidified pf resin were determined with generic algorithms
基於實驗曲線構建了最小二乘形式的目標函數，並採用傳統優化方法輔助設計了各個決策變量的搜索空間，進而用遺傳演算法確定了損傷型zwt非線性粘彈性本構關系中的材料參數。 -
This paper brings forward one new method in the selection of supply chains cooperators : hierarch variable weight priority - degree evaluation method, it aims to solve some problem that which can not be solved with normal power integration methods, such as it can ' t take the demand of equilibrium and inspiritment into account, and it usually contraventions the principia that decision factors can not substitute each other
摘要針對企業在選擇供應鏈合作夥伴時，常權綜合方法難以體現決策者對決策因素的均衡性要求和激勵性要求，以及常權綜合方法常常違背決策因素間不可替代性的弊病，提出了一種基於可拓理論和變權理論的新方法層次變權優度評價法。 -
This paper researches the basic statistical rule of oil - gas dynamic system from the systematic theory, combining with the common characteristic and structure characteristic of oil - gas dynamic system, taking the design requirement of oil field development programming into consideration, by using of functional simulation principle ( including nn method, differential simulation method ) and historical data of oil field, establishes the in - out conjunctional relationship of dynamic index of oil field development, and researches the two level index prediction of development dynamic with both oil field and oil production plant on the basis of the in - out conjunctional relationship. furthermore, this paper analyzes the " decision - making variable ", " object " and " restriction terms " by the optimization theory and set up several optimal models which compose the oil field development programming, it is following : optimization model of the production composing ( solving the optimal composing of each subentry production and cor responding cost, workload, including the onshore thin oil production, the heavy oil thermal process production, tertiary oil recovery production, and the offshore production ) ; optimization model of measure production structure ( determining the optimal composing of each measure production and measure workload, which is composed of fracture, acidulation, capital repair and so on ) ; optimization model of the production distraction ( optimal distribution of the whole oil field production to each oil production plant ) and the integrated development programming model of oil field
本文從系統理論出發研究油氣動態系統基本統計規律，結合油氣動態系統的一般特點，結構特點，兼顧油田開發規劃設計的要求，利用功能模擬原理（含神經網路方法、微分模擬方法） ，依據油田歷史數據，建立了油田開發動態指標間的輸入輸出關聯關系，並在此輸入輸出關聯關系的基礎上研究了油田及採油廠兩級的開發動態指標預測，同時利用最優化原理，在分析「決策變量」 、 「目標」及「約束條件」的基礎上建立了多個構成油田開發規劃的「優化模型」 ，這些優化模型包括：產量構成優化模型（解決陸上稀油產量、稠油熱采產量、三次採油產量、海上產量及對應的成本、工作量的最優構成問題） ；措施產量結構優化模型（解決壓裂、酸化、大修等各項措施產量及措施工作量的最優構成問題） ；產量分配優化模型（將油田的產量最優地分配到各採油廠）以及油田綜合開發規劃模型。 -
A study of correlation between first - mover advantage and decision variable in oligopoly
關于寡頭壟斷模型中先動優勢的決策變量相關性研究 -
Aim at ubiquitous parallel multi - reservoir structure in our country ' s basin, the universal objective function including coefficient bi embodying a spatial significance difference at different flood control points and variable ai denoting a selection of scheduling mode is established, which provide a valid intervenor interface for flood control consultation decision. according to the real - time requirement, a model of reservoir storage allocation is proposed, which embody basic idea of phasic compensation. passing the dynamic correction to cut down the disadvantageous influence that indetermination result in on the certain degree, joining together the step alternation solving method, this model can maximally consider bias of decision makers, ensure the rationality and practicability of the solutions
針對我國流域中普遍存在的並聯庫群結構，論文提出包含不同防洪點重要性的系數_ i和選擇調度模式的變量_ i的通用目標函數，為防洪會商決策，提供了有效的人工干預介面，根據實時性要求提出動態分配防洪庫容的庫容分配方法，體現了相機補償的基本思想，通過動態修正在一定程度上可以削減不確定性造成的不利影響，結合分步迭代求解技術，能最大限度體現決策者的偏好，保障解的合理性和可操作性。 -
It fulfilled the transforming from point data to polygon data and created the field soil nutrient spatial distribution graphics using the different kinds of interpolation ways. it integrated soil test nutrition data, object yield obtained by historical crop yields of past years, fertilization model and expert knowledge to realize intelligent decision and make field fertilizer prescription. with the card ataflash, the prescription made by the system can be imported into the control computer of variable - rate fertilizer machinery and direct variable - rate controller to implement variable - rate fertilization
系統實現了以下主要功能：應用不同的插值方法實現點狀信息向面狀信息的轉化，生成農田土壤養分空間分布圖；以土壤采樣測試分析數據作為土壤背景養分，並根據歷史產量及其他信息分析確定施肥所要達到的目標產量，通過集成施肥模型和專家知識實現智能決策，生成田間定位施肥處方；然後用ataflash卡導入到變量施肥機械控制計算機上，指導其田間變量作業。 -
The dynamic plan, which is a basic way of math, has great scope for using in optimization regulation. it decomposes a complicated problem into a series of simple problem which contain one variable and agree with the decision having many stages about reservoir ' s optimization regulation
動態規劃法是最優化技術中適用范圍最廣的基本數學方法，它是把一個包含多變量的復雜問題分解成一系列各自只包含一個變量的簡單問題，適合於水庫興利調度的多階段決策。 -
When the paper uses the optimization regulation, it divides the management time into " t " stages according to ten days to make up the decision having many stages of the reservoir ' s optimization regulation, and it takes the reservoir ' s retain quantity of water or retain status of water and confiscated quantity of water a s condition variable, takes the water quantity of drawing off or quantity of electricity as decision variable. when the confiscated quantity of water can be known or be forecasted in every stage during the period of management, that is to say the confiscated water process can adopt the determined process, we can make up determine dynamic plan model with many stages and take the minimal lacking water as objective function
在動態規劃方法中把水庫的整個調度期，按句劃分為t個時段，以水庫的蓄水量s或蓄水位z和入庫水量q作為狀態變量，以水庫放水量q或電站出力n或發電量e作為決策變量，構成一個多階段決策過程，當計劃調度期內各時段的入庫徑流量已知或可以預報，即入庫徑流過程可以採用確定性徑流過程時，分別按缺水量d最小作為目標函數建立多階段確定性動態規劃數學模型。 -
The characteristic of h. 264 standard can be concluded mainly into three aspects. it is more practicable, more adaptive to ip net and mobile system and it improves the key components of coding structure based on hybrid video coding framework. for example, it adds coding mode decision, multi frame prediction, context - based adaptive variable length coding ( cavlc ), 4x4 integer transform, loopfilter, etc. the improvement in performance leads to higher computational complexity in the new standard
H . 264的技術特點可以歸納為三個方面，一是注重實用；二是注重對移動和ip網路的適應；三是在混合編碼器的基本框架下，對其主要關鍵部件都做了重大改進，如多模式運動估計、幀內預測、多幀預測、基於內容的變長編碼、 4 4二維整數變換等。 -
According to the work condition of one 1450 five - stand tandem cold mill, reduction distribution as decision variable, the penalty function was established, in which rolling pressure distribution ratio was as objective function and the constraint condition of reduction distribution was as penalty term
根據某1450五機架冷連軋機生產工況，以壓下量分配為自變量，以軋制力成比例分配為目標函數，將壓下量分配的約束條件作為懲罰項，建立懲罰函數。 -
The thesis consist of six chapters and based on the way of propose the question, analysis, then get the solution. it discussed and recognized what the ship transportation cost was in chapter one ; studied the environment and growing trend of the cost in chapter two ; fully discussed and demonstrated the voyage variable costs and controlling method, proposed a mathematic decision model of fuel supplying and get through the validation, proposed the concept of risking cost and addressing many controlling measures to it in chapter three ; discussed a certain running costs, proposed and validated a mathematic model of condition - based maintenance, and put forward many practical controlling method of running costs such as crew payment, repairs, spare parts, stores and lub oils in chapter four ; combining a case of monthly running cost budget and verification, performed a useful learning on running cost budget, forecast and verification in chapter five ; finally fully studied the method of cost - calculating and benefit - analyzing of time chartering container ships on a proposed route
第一章主要討論並認清什麼是船舶運輸成本；第二章研究了船舶運輸成本的生存環境和生長趨勢；第三章詳細論述並論證了航次變動成本的控制措施，提出了燃油補給方案的決策模型並給出了模型的驗證過程，提出了航次風險成本的概念並論述了若干航次風險成本的控制措施；第四章對船舶營運成本中的船員費用、維修保養費用、備件、潤物料費用等幾個主要的可控性較高的成本進行了細致的分析並分別討論了相應的控制措施，提出了基於狀態維修決策的數學模型並論證了模型的正確性及具體解算步驟，對于備件、潤物料的控制堅持以科學的預算為前提，以申領、接收、使用、盤存為控制環節，切實做到理論與實踐的密切結合；第五章結合營運成本的預核算的案例，對船舶運輸營運成本的預算及核算進行了有益的探討；第六章結合具體案例對期租班輪的成本測算與效益分析方法進行了細致的研究。 -
( 6 ) the reservoir operation function is established utilizing the optimal dispatching results. the state variable and decision variable of the operation function is discussed, and the stepwise regression method is used to derive the operation function. because of the nonlinear features of the function have n ' t been reflected in traditional regression methods, the back - propagation neural network model is introduced to establish the operation function
（ 6 ）利用水庫優化調度結果建立水庫調度函數，在分析水庫調度函數各特徵量的基礎上，介紹了用逐步回歸方法建立水庫調度函數的具體過程，考慮到傳統回歸方法未能反映調度函數的非線性特性，引入bp神經網路模型求解模型，建立水庫調度函數。 -
It is this research that overcomes the difficult problems which variable factors in system design are many and researches about their coupling property are few with using engineering - organism - economy united theory, which horticulture facility types are too many, standardization low and dimension diverse with delamination strategy, and which reasoning in decision - making subsystem is hard because rules are uncertain with using uncertain reasoning with weight
本研究運用工程?生物?經濟一體化的理論，解決了系統設計中變量因子多而雜、且相互耦合研究少的難題；運用分層策略，解決了園藝設施類型多、標準化程度低、數量大小參差不齊的難題；在決策分系統中，利用加權的不確定推理，解決了因規則的不確定性而帶來得推理機制的難題。 -
Co value and fog value is the input variable of fuzzy system, pass through fuzzy, fuzzy rules, fuzzy inference and fuzzy decision - making, a fuzzy control table that can be used directly in ventilation control program is gotten
採用一氧化碳濃度和煙霧濃度作為模糊系統的輸入變量，經過模糊化、模糊控制規則的確定、模糊推理、模糊判決四個步驟，最終確定出可以直接用於通風控制編程使用的模糊控製表。 -
The financial reporting information is the important component of capital market information, and is the alternative variable of external users ’ economic decision
財務報告信息是資本市場信息的重要組成部分，是外部利益相關者經濟決策的替代變量。 -
The technic which i use to elicit the coefficient of the prediction variable is that i firstly compute the dependance of condition attribute and decision attribute, then work out the importance of condition property ( financial index ), finally unify this importance and get the coefficient of prediction variable
通過計算條件屬性和決策屬性的依賴度來確定條件屬性的重要程度，對其進行歸一化處理后即得到預測變量的權系數，進而確定綜合預測模型。 -
According to the principle i. e. the investor obtains only the expected minimum benefit when npv is zero, based on the analysis of various factors effecting the cash flow of gas investment, the parameters related with the reserves are expressed as the function of reserve scale, and the mathematical model is developed to determine the gas minimum economic resources taking the resources as a variable and given npv is zero, which pro vides a decision making method for gas exploration invest merit
根據投資凈現值為零時投資者只獲得最低期望收益的原理，在分析影響天然氣投資現金流量各因素的基礎上，將與儲量相關的參數表示為儲量規模的函數，並以儲量規模作為變數通過令凈現值為零得到確定天然氣最低經濟儲量規模的數學模型，從而為天然氣勘探投資提供一種決策方法。 -
The virtual mission area concept was advanced to transform the constraints of three dimensions to those of two dimensions to decrease the decision - variable complexities
通過引入虛任務區概念，將三維約束降為二維約束，有效地降低了決策變量的復雜性。 -
Through analyzing decision variable of receiver, the f - pe method can increase autocorrelation of desire user ' s spreading sequence, and improve the ber performance
對接收機判決變量輸出分析表明，該演算法能有效增加關心用戶的解擴濾波相關峰值，對誤碼率性能有很好的改善。
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