指數時間函數 的英文怎麼說

中文拼音 [zhǐshǔshíjiānhánshǔ]
指數時間函數 英文
exponential time function
  • 指 : 指構詞成分。
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 間 : 間Ⅰ名詞1 （中間） between; among 2 （一定的空間或時間里） with a definite time or space 3 （一間...
  • 函 : 名詞1. [書面語] （匣; 封套） case; envelope 2. （信件） letter 3. （姓氏） a surname
  • 指數 : 1. [經] （比數） index number; index 2. [數學] exponent
  • 時間 : time; hour; 北京時間十九點整19 hours beijing time; 上課時間school hours; 時間與空間 time and spac...
  • 函數 : [數學] function函數計算機 function computer; 函數計算器 function calculator; 函數運算 functional operation
  1. One is the evt - based var model ( including gev model and gpd model ), the other is the quantile regression var model. secondly, i evaluate predictive performance of a selection of var models for chinese stock market data. these var models include riskmetrics method, historical simulation, monte carlo method, and the three recent models based on quantile regression and extreme value theory

    本文首先重點探討了極值分佈var模型（包括廣義極值分佈和廣義帕雷托分佈兩個模型）和分位數回歸var模型；然後在此基礎上將六個var模型（包括上述三種模型、歷史模擬法、 riskmetrics方法以及蒙特卡洛法）實證應用於估計上證指數、上證180 、深證成指、深證綜指95 var和99 var ；同時採用區間預測法、損失函數法和符號檢驗法對這些var模型進行了選擇評估。
  2. According to the least twin multiplication to calculating the sensitivity index in several water production functions. thus, the writer obtains the fitted the value of the sensitivity index and the varied rule. at the same time, the writer puts forward a new method named rag a ( real coding based accelerating genetic algorithm ) and combines raga with dpsa to calculating the best irrigation system under the non - sufficient irrigation of well irrigation rice in sanjiang plain

    根據《隨機水文學》理論中的時間序列分析法，建立了適合三江平原井灌水稻需水量預報的非平穩時序隨機模型；通過分析降雨隨機特性，選定季節性時序隨機模型，建立了適合三江平原井灌水稻降雨預報的月平均降雨模型；根據最小二乘法，計算出幾種常用水分生產函數中的敏感指數及敏感系數，進而得到三江平原適宜採用的水分生產函數漠型及模型中敏感指數的變化規律；本文提出遺傳動態規劃法（ raga ? dp ） ，即採用改進的基於實數編碼的加速遺傳演算法（ realcodingbasedacceleratinggeneticalgorithm ，簡稱raga ）與動態規劃法（ dpsa ）相結合，推求非充分灌溉條件下三江平原井灌水稻的最優灌溉制度。
  3. In the chapter two we discussed that the server would first use speed - 1 to serve customers when the system entered the busy state from the empty state, but when the server found the number of customers in the system exceeded the thresh - n during serving, after finishing the service of current customer it would use speed - 2 to serve the next customer till there is no customer. by the method of supplementary variable, l - transition and constructing vector markov, we attained the distribution of the queue length, the distribution of wait - time, the distribution of stay - time, the utility and etc. in the last part of this chapter, we discussed the optimal n * for thresh n which minimizing the cost function and we illustrate the cost function behaves for various parameter selections by a numerical study

    在本文第二章討論了當系統從空閑進入忙期時是服務臺以速度1進行服務，但一旦對某顧客服務完畢時如發現系統中的顧客數超過n值時就以速度2服務后續顧客直到系統變空的可修排隊系統，通過構造各種向量馬氏過程和吸收向量馬氏過程，獲得了瞬態、穩態隊長分佈、等待時間分佈、逗留時間分佈、更新周期分佈等一系列排隊指標以及可用度、可靠度等一些可靠性指標，在本章最後又從系統如何更好節省費用角度出發討論了門限n的最優取值問題，並利用mathematic軟體對費用函數進行了數值模擬。
  4. In this article, firstly the background of the textile trade conflicts within sino - us or sino - euro are introduced, thus learn that how to discern and dodge the foreign trade risks, how to choose the appropriate investment projects have already become one of the most important questions for exporting companies on foreign trade affairs well - known as high investment and high risk. so the main text makes a risk analysis qualitatively and quantitatively on a textile - exporting trading company from three angles of statistic 、 game theory and portfolio theory, which is the main content that we studied. firstly, the statistic article adopts data of the transaction closing price of the textile clothing index in shenzhen stock exchange at the end of each quarter as well as several other kinds of data reflecting the macro - economic changes, performs an empirical analysis of these data according to the theory of co - integration test 、 granger cause test and impulse response function of time series in economitric, and learn that the impact to ti is more obvious by the economic index reflecting local commodity price level and economic prosperity degree home and abroad, as well as the impact degree and the time lag degree, and knows the macro - economic risks faced by textile business enterprises ; after that by the game theory angle we analyze exactly the managing risks faced by one textile export corporation named beauty. from the game expansion chart the system arrangement between censor ways by exportation goal countries and exporting strategies by the exporting enterprises has been analyzed. involving the benefit assignment between them both the limited rounds and infinite rounds negotiations of cooperation games have been studied, and then country responsibility and the enterprise managing risks on foreign trade affairs and so on have been analyzed exactly ; in order to realize the investment multiplication in the certain degree to disperse the risk, the

    本文首先介紹了中美、中歐紡織品貿易爭端的來龍去脈，由此可知在涉外貿易這種以高投入、高風險著稱的行業里，如何甄別和規避外貿風險、如何選擇合適的投資項目已經成為外貿企業的首要問題。因此，正文分別從統計學、博弈論和投資組合三種角度對涉外紡織品貿易公司風險進行了定性和定量的分析，這也是本文的主要研究內容。首先，統計學篇選取了深圳證券交易所行業分類指數?紡織服裝指數（ ti ）每一季度末的交易收盤價和若干種反映宏觀經濟變化的指標，利用計量經濟學中時間序列的協整檢驗、 granger因果檢驗和脈沖反應函數等理論做實證分析，從而得知反映國內物價水平和國內外經濟景氣程度的經濟指標對紡織板塊上市值的沖擊比較明顯，且可知沖擊程度和時滯度，進而分析出涉外紡織企業所面臨的宏觀經濟風險;接著，從博弈論的角度具體分析一家紡織品出口公司（ beauty ）的外貿活動所面臨的各種經營風險，該篇從博弈擴展圖入手，分析了出口目的國審查方式與本企業出口策略之間的制度安排;並圍繞雙方的利益分配，研究了有限回合和無限回合合作談判博弈，然後具體論述了國家責任和企業涉外經營風險等問題;在一定程度上為了實現投資多元化來分散風險的目的，投資組合篇從經典的markowitz模型著手，在一些特定條件的限制下，給出了一個相應的投資組合模型。
  5. Based on the fact of generating the synthetic data using poisson distribution function and exponential distribution function, the performance of hy algorithm and the comparison among hy algorithm, apriori algorithm and dhp algorithm is experimented. these experiments include the one that compares the execution time using variant synthetic data and variant minimum supports, and the scale - up one that compares the execution time using variant transaction number and variant item number in synthetic data. finally the results of the experiments are analysed

    在構造基於泊松分佈函數和指數分佈函數的合西南交通大學碩士研究生學位論文第iii頁成數據的基礎上，對hy演算法的性能及其與apriori演算法和dhp演算法的比較進行了實驗，這些實驗包括針對不同的合成數據和不同的最小支持度，對各演算法的執行時間進行比較的實驗以及針對合成數據的不同的事務數和不同的項數對各演算法的執行時間進行比較的規模實驗，並對實驗結果進行了分析，反映出hy演算法具有良好的性能。
  6. Based on many references, a evaluating function is proposed with performance index of hall call waiting time ( hwt ), people number in a car, energy consuming. the statistic approximation algorithm for hwt is introduced, based on the analysis of elevator traffic state, the calculation of traveling distance and stop number is explained in detail in the thesis. according to the characteristics of the elevator, a group of elevator teaching signals are constructed, by which the weight coefficients are trained according to the widrow - hoff rule

    本文在借鑒了大量的文獻基礎上，提出以平均等候時間、轎廂人數、能源消耗為性能指標的評價函數；詳細介紹了乘客待梯時間hwt的統計近似演算法；基於對電梯交通狀況的分析，對停層次數和運行距離這兩個重要參數的計算進行了詳盡的介紹；依據電梯運行特性參數，構造一組電梯運行教師信號，並採用神經網路的widrow - hoff學習規則訓練權系數。
  7. Considering the time of trip proving to be overall evaluation merit on traffic impact area, using the experience of the road impedance function, the article puts forward a method based on time using for evaluating traffic impact area, namely t - tia, and provides a new method which can be applied to evaluate traffic impact area effectively

    本文選用出行時間作為綜合評價交通影響范圍指標，在分析出行時間的基礎上，通過借鑒城市時間路阻函數，提出了基於時間的交通影響分析的方法t - tia ，從而確定了交通影響范圍量化的新方法。在對等時線的特點進行分析之後，本文採用其作為基於時間的交影響范圍量化方法的評價形式。
  8. A method of fuzzy optimization design based on genetic algorithm is presented as a new method of parameter optimization design for dc double closed loop speed adjusting system. the method covers three steps. firstly, speed overshoot rate and settling time are chosen as performance indice according to the demand of engineering. these indice are normalized by using fuzzy membership function and then weighted to form objective function of optimization model of the system. secondly, the dynamic response curve of the system with corresponding parameters and peoformance indice are obtained by computerized numerical calculation and simulation. finally, parameters of engineering design are expanded as searching space ; and parameters of speed regulator and current regulator are taken as genes in chromosome. these genes in searching space are optimized to get best solution by way of genetic algorithm. as shown by experimental results, the parameters designed by this method are capable of significantly improving performance indice of the system, which proves that it is a practical and effective method

    提出一種基於遺傳演算法的直流雙閉環調速系統參數優化設計方法.根據工程技術的要求，選用速度超調量和過渡時間作為參數優化性能指標.將該指標用模糊隸屬度函數歸一化，再加權平均形成系統優化模型的目標函數.採用計算機數值計算方法，通過模擬獲得系統對應參數的動態響應曲線及其性能指標.最後以工程設計的參數為搜索范圍，以速度調節器和電流調節器的參數為染色體中的基因，通過遺傳演算法在搜索范圍中優化這些基因，獲得優化解.實驗結果表明，所設計的參數能使系統性能指標有顯著提高
  9. In this paper, systemic theoretic analysis of the relationship of stock structure and operating performance is progressed, based on this, theoretic study and demonstration analysis organic fall together, and the neural networks model that can reflect their relationship total and systemic is established. the input variable of the model can reflect the panorama of stock structure, also, it can embodiment other influence factor of company performance. the evaluation target system that can reflect the operating condition of listed companies completely, impersonality and truly is advanced, at the same time, the best result weights confirm method is brought forward, thereby, the fuzzy integrate evaluations method is improved

    本文對股權結構與經營績效之間的關系作了系統的理論分析，並在此基礎上，將理論研究和實證分析有機地結合起來，建立了一個能全面、系統地反映它們之間關系的神經網路模型：該模型的輸入變量在反映股權結構全貌的同時又體現了公司績效的其它影響因素；提出了可以全面、客觀、真實地反映上市公司經營狀況的評價指標體系，同時提出了最佳結果權重確定法，從而改進了模糊綜合評價方法，並利用改進的模糊綜合評價法求出公司經營績效的綜合量化值作為神經網路的期望輸出；改進了神經網路模型的演算法，使其在樣本數據相對較少的條件下也能很好地在性態上模擬被逼近函數。
  10. To avoid high frequency oscillation in the course of autopilot design, damping coefficient value was treated as a constraint, the rise time was taken as objective, and the other performance criteria were taken as constraints, then the robustness design problem was solved by multi - objective optimization method

    摘要在導彈控制系統設計過程中，考慮了自動駕駛儀的高頻振蕩問題，將其轉化為系統的一個約束條件，同時把上升時間轉化為目標函數，其他設計指標視為約束條件，採用有約束多目標優化的方法解決了系統魯棒性設計問題。
  11. At the same time, the formulas on reliability, mean time to failure and availability, mean time between failure etc were deduced respectively based on the distribution density function and markov state - transition diagram

    同時依據分佈密度函數和馬爾可夫模型的數學理論分別推導了兩種系統的可靠度、平均故障前時間和可用度、平均故障間隔時間等指標的計算公式，為軟體內核程序的開發奠定了理論基礎。
  12. Linear utility function, non - linear utility junction, and randomly distributed parameter utility function were all specified to find the effect of utility function specification on the updating of model

    效用函數指定除一般常用的線性模式外，另建立旅行服務水準變數為非線性與旅行時間變數之參數為常態分配之效用函數，來探討效用函數指定對模式更新之影響。
  13. Based on the analysis and research on the instruction system, this paper designs and realizes the interpretation system for instructions, and also the functions which compute program running time

    在對指令系統分析和研究的基礎上，設計和實現了指令的解釋執行系統。並設計和實現計算程序執行時間的函數。
  14. In light of the measure way of fluid static pressure falling in proportion, the explicit function method of solving exponent by power function was simply and conveniently acquired through recording fluid flowing times

    文章採用流體靜壓頭下降成比例的測量方法，記錄其流動時間，簡便地解決了冪函數求解指數的顯函數方法。
  15. We find that the cosmic scale factor has the form of exponent inflation if the cosmological constant contributes to the positive material density, and the factor is composite function of cosine if the cosmological constant contributes to the negative material, furthermore, we gain the new formality of the pressure and the temperature in the procedure of cosmological evolution

    首次發現當宇宙學常數對物質密度的貢獻大於零時有指數復合函數的型得一般暴漲，當宇宙學常數對密度的貢獻小於零時宇宙有餘弦形式的演化。通過對宇宙中壓強和溫度的計算，得到新的壓強表達式和暴漲宇宙模型中溫度隨時間演化的表達式。
  16. In the second methodology, parameterized matrices are taken as the weighting matrices of the quadratic performance index. due to the existence of the relationship between parameterized matrices and control forces, the parameterized coefficients of the weighting matrices can be regarded as the control parameters, and they are taken as one part of the synthesis design variables. since the experimental conditions can not meet the requirement of acoustic measuring, a method based on experiment and simulation analysis is developed

    在第二種方法中，以參數化矩陣作為二次型性能指標中的權矩陣，由於參數化權矩陣與機構控制力之間存在的對應關系，可以將權矩陣的參數化系數作為控制系統參數，與結構設計參數一起同時作為獨立的設計變量，對目標函數進行優化分析。
  17. In these methods, relativity degree solution is the method in which an ideal solution is established, the relativity degrees of evaluated solutions and the ideal solution are compared and orders are marshaled at last. affiliation degree solution is the solution in which ideal solution and ill - ideal solution are established, affiliate degrees between evaluated solutions and ideal solution are resolved by establishing a goal function and then orders of all solutions are marshaled according to measurements of affiliation degrees. gross profit solution is the solution in which both ideal solution and ill - ideal solution are considered, the differences between evaluated solutions and them a re measured according to n - dimension euclidean distance, and then gross profits are calculated

    其中關聯度法是首先確立一個理想方案，然後比較待評估方案與理想方案的關聯度，最後根據其大小對各待評估方案進行排序；優屬度法是首先確立理想方案和負理想方案，然後把各待評方案與理想方案和負理想方案的優屬度為權建立一個目標函數，進而求出各待評方案與理想方案的優屬度，最後根據優屬度的大小對各方案進行排序；總效用法的思想是同武漢理工大學碩士學位論文時考慮理想解與負理想解二者作為參照基準，並採用n維歐幾里德距離來度量任意可行解（被評估方案）與理想方案及負理想方案之間的差異，然後指導兩個差異結合在一起計算被評估方案的總效用，評估的原則是總效用越大越好;嫡本是物理學中的概念，在信息理論中被借用來作為度量權重的一種方法，但也可用來評估各方案的優劣，其評估原則是嫡值越大越好。
  18. Discussion on characteristics of time function of statistical index in scientific research evaluation system

    科學研究評價體系中若干統計指標時間函數屬性的探討
  19. Aiming at product development process, three detail problems are analyzed and investigated deeply, namely a method for the choice of product development project, risk analysis in the concurrent product development process, and the policy of market entry. firstly, a new integrated method for the choice of product development project is presented ， integrating absolute concentration curves and analytic network process. the paper establishes a model for the choice of product development project including network subsystem, emphasizes the product portfolio management, especially the relativity of the presented product and the new product

    針對產品開發項目的選擇方法提出了一種綜合評判方法，集成絕對優勢曲線方法和網路分析法，建立具有網路子系統的產品開發項目評價選擇系統模型，著重考慮了新產品與現有產品的相關性；在產品并行開發中的風險分析方面，以分析兩階段并行開發的時間函數和成本函數為基礎，建立時間風險和成本風險模型，以兩者的加權和為目標函數；在產品投放市場策略方面，從分析投放時機和投放市場的規模選擇入手，建立了綜合投放策略模型，提出四種投放策略分別適用於四種類型的企業，並且指出市場投放策略要兼顧投放后的應對策略，包括資源供給問題和后繼產品開發問題。
  20. The dictionary is keyed off a namespace, and each entry references a function to be invoked when a request in the corresponding namespace is received

    字典的主鍵是名稱空間，每個條目指向一個函數，當接收到與函數相對應的名稱空間里的請求時就調用這個函數。
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