遞歸模型 的英文怎麼說

中文拼音 [dìguīmóxíng]
遞歸模型 英文
recursive model
  • 遞 : Ⅰ動詞（傳送;傳遞） hand over; pass; give Ⅱ副詞（順著次序） in the proper order; successively
  • 歸 : Ⅰ動詞1 （返回） return; go back to 2 （還給; 歸還） return sth to; give back to 3 （趨向或集中於...
  • 模 : 模名詞1. （模子） mould; pattern; matrix 2. （姓氏） a surname
  • 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. We first present a number of desiderata for an xml - based query language, and based on this criterion, we introduce the syntax of a simple core ian - guage for semistructured data and then describe four extensions that have resulted in working prototypes. second, we present the algorithm for computing the result of a regular expression on data graph with cycles, the first - order interpretation of querying language for semistructured data, and explore structural recursion and bisimulation in semistructured data and propose an efficient and systematic way to computing a bisimulation between the two graphs. we also proposed and implemented a web querying system with database features

    基於這些準則，對一個簡單的半結構數據查詢核心語言的語法提出了兩方面擴充；給出了計算數據圖中正規表達式的演算法；對半結構數據查詢語言的一階邏輯描述、結構遞歸和數據圖的雙態模擬（ bisimulation ）等問題進行了研究，提出了一種判定數據圖的bisimulation演算法；在xml數據查詢語言研究的基礎上，設計並實現了一種具有數據庫查詢特性的web查詢系統原型。
  2. Thus this paper puts forward the dynamic time series period analysis and prediction model. it combines the basic principle of the stepwise regression period analysis to the multiplayer - transfer method. it can not only effectively select every latent period of a time series, but also take advantage of the selected latent periods to make a long - term prediction

    因此本文提出了動態時間序列周期分析預測模型，它是將多層遞階方法與逐步回歸周期分析的基本原理相結合，使之既可以有效地選取時間序列的各個隱含周期，也可以利用所選取的隱含周期作較長的時間預測。
  3. Two block time - recursive algorithms are developed for the efficient and fast computation of the 1 - d rdgt coefficients and for the fast reconstruction of the original signal from the coefficients in both the critical sampling case and the oversampling case. the two algorithms are implemented respectively by a unified parallel lattice structure. and the computational complexity analysis and comparison show that the proposed algorithms provide a more efficient and faster method for the computation of the discrete gabor transforms

    首先論證了一維rdgt系數求解演算法和由變換系數重建原信號演算法，不論是在臨界抽樣條件下還是在過抽樣條件下，都同樣具有塊時間遞歸特性，並提出了相應的塊時間遞歸演算法及其并行格型結構實現方法，計算機模擬驗證了并行格型結構實現的可行性，計算復雜性分析與比較也說明了rdgt塊時間遞歸演算法的并行格型結構在計算時間方面所具有的高速和高效性能。
  4. Neural network control is an important mode of intelligent control, and it is widely used in branches of control science, first, the architecture and the learning rule ( error back propagation algorithm ) of multiplayered neural network which is widely used in control system are presentedo especially, the paper refers to the architecture of diagonal recurrent neural network and its learning algorithm - - - - - recurrent prediction error algorithm because of its faster convergence with low computing costo next, before introducing the neural network control to the double close loop dc driver system, the controllers of current and velocity loop are designed using engineering design approach after analysis of the system, simulation models of the system are created

    神經網路控制是智能控制的重要方式之一，它廣泛應用於自動控制學科各個領域。本文首先敘述了控制系統中常用的多層前饋網路結構及演算法（ bp演算法） ，特別提及了能夠較好描述系統動態性能的對角遞歸神經網路和在用遞推預報誤差演算法訓練drnn時取得了較快的收斂速度。其次，應用工程方法分析設計了tf - 1350糖分離機的電流、轉速雙閉環直流調速系統的控制器，作為引入神經網路控制的設計基礎，並建立了系統的模擬模型。
  5. Thus chaos theory is, very generally, the study of forever changing complex systems based on mathematical concepts of recursion, whether in the form of a recursive process or a set of differential equations modeling a physical system

    通常混沌理論是研究建立在數學遞歸概念基礎的上永遠改變復雜系統，無論以回歸過程形式或建立微分方程物理系統模型。
  6. Based on the pilot studies on the evaluation index system and the method of sustainable development on loess plateau, this paper has designed the structure frame of the index system including three types of index including one advanced comprehensive index - the comprehensive index of sustainable development, five basic indexes and thirty element indexes, the analytic hierarchy process which can be used to calculate the sustainable development index weight supported by entropy technology. the model can be used to evaluate the sustainable development of loess plateau comprehensively integrated by mathematical method such as compositive appraisement method of hierarchy multilayer 、 main component analytical method 、 regression analytical method and so on. pilot study on the index system has been carried out on the leoss plateau of the northern shaanxi, and the results is promising

    通過對黃土高原可持續發展評價指標體系和方法的初步研究，設計出了包括1個高級綜合指標- -可持續發展綜合指數、人口狀況等5個基本指標和人口自然增長率等30個元素指標的層次性指標體系結構框架，熵技術支持下確定可持續發展指標權重的層次分析法，以及由遞階多層次綜合評價、主成份分析和回歸分析等數學方法所集成的可持續發展全面綜合評價模型，並以陜北黃土高原為例進行了具體的應用分析與評價。
  7. Accuracy of ptfs is evaluated by the root of the mean squared difference ( rmsd ). last, we compared measuring values with estimation values of regression method and bp model. the evaluating results indicate that ptfs developed by regression method or bp model satisfy to use to the education, research and production practice for keerqin sandy land

    最後對統計回歸模擬模型和dp神經網路模型進行了對比評價分析，對比分析結果表明，用兩種模型建立土壤傳遞函數（ ptfs ）的預測效果都比較理想，均可應用於科爾沁沙地的教學、科研和生產實踐中。
  8. Secondly in enterprise valuation cost method should proceed with book value of the financial statement, regard market value as adjusting orientation and reduce application range of cost method. when income method is adopted, four principles should be paid attention to : a : stage - by - stage income model should be used which is made by early stage income current value added by later stage income increase. b : net profit and net cash flow should be the majority of income volume

    其次為：企業價值評估採用成本法應從財務報表的賬面價值入手、以市場價值為調整目標、減少成本法的應用范圍；採用收益法應以前期收益現值加後期收益額遞增的分階段收益模型，收益額以凈利潤、現金凈流量為主，收益預測以企業未來發展潛力分析為前提的銷售收入預測為主導，折現率堅持不低於無風險報酬率等四項原則，系數以回歸方程的測算為主；市場法中參照物企業選取應以同行業企業為基準、擴大數據來源，注重評估比率可靠性驗證、利用多種比率的配合等。
  9. 3, 4, 5 and ? 6 of this chapter deal respectively with the transient distribution of the queue length of these four queueing systems. such results are obtained as follows : under the condition of the interarrival times distributions and service times distributions of these queueing models which have density function, their transient distribution of the queue length can be represented as an integral, and the integrated term of this integral can be recursively obtained

    在這一章的誇3 、芬4 、縣5和號6中，分別針對這四個排隊模型，討論了瞬時隊長的分佈，最終得到了以下的結果:在這幾個模型的到達間隔分佈和服務時間分佈均具有密度函數的條件下，它們的瞬時隊長分佈可以表示為一個積分，該積分的被積項可以遞歸地求取。
  10. The thesis summarizes the basic theories of price discrimination, expatiated on the multi - class differential pricing method and dynamic differential pricing theory ; concludes the factors that have impacts on tickets - price, analyses and classfies the factors ; brings forward a canonical method of market segmentation, introduces the process of market segmentation based on the model of gray relative level, discusses the idiographic measure of ticket - price control ; improves the academic achievements of former scholars, puts forward a model of multi - class dynamic differential pricing for the air passenger transport, which is based on the maximum revenue for the airline industry, and gives a approximate arithmetic of the model, then showes the application of the model and its feasibility on increasing airline industry ’ s revenue by 25 models

    在對民航定價的國內外研究現狀進行綜述的基礎上，從經濟學角度介紹差別定價的基本理論，闡述民航客運的多等級差別定價理論和動態差別定價理論;對民航票價的影響因素進行分類說明;作為多等級定價的基礎，提出市場細分的標準和方法，用灰色關聯度模型解決航空旅客市場細分問題，並提出票價控制的具體措施;引入一種旅客到達頻率預測的統計方法，以航空公司收益最大化為目標，建立基於多等級定價基礎上的動態差別定價模型，即多等級動態差別定價模型，給出模型的遞歸演算法，通過對動態差別定價模型的運行結果進行分析，建立模型的一種近似模型，並且用25個簡單算例說明模型的用法以及在提高航空公司收益方面的可行性。
  11. The first one is based on the offset surface of subdivision model. through mapping the original mesh node by node, the offset surface is generated. it can get the interference free tool - path directly from the offset surface without complex interference check and process

    然後實現了兩種精加工刀具軌跡生成方法，一種是基於等距面的截平面法，通過點對點法向映射的方法生成遞歸分割曲面模型法向等距面，由該等距面生成無干涉刀具軌跡。
  12. This thesis presents methods to generate tool - path for the rough machining and finish machining of subdivision surfaces

    實現了遞歸分割曲面模型數控粗加工和精加工的刀具軌跡生成。
  13. Two - stage algorithms of parameter estimation for the autoregressive moving average ( arma ) models are presented, which are called two - stage recursive least squares algorithm ( 2 - rls ) and recursive least squares - pseudoinverse algorithm ( rls - pi )

    本文提出了自回歸滑動平均（ arma ）模型的兩段參數估計演算法：兩段遞推最小二乘演算法（ 2 - rls ）和遞推最小二乘-偽逆演算法（ rls - pi ） 。
  14. Synthesizing the two identification methods of weighted least square and resricted memory, the mutivariable system recursive estimate algorithems of unknown parameter of autoregressive models in the presence of controlled inputare are given

    摘要將加權最小二乘法和限定記憶兩種參數估計方法相綜合，給出了多變量系統帶控制輸入的自回歸模型未知參數的遞推估計演算法。
  15. Combined with the data - selected schemes proposed, the computational complexity of this method can be lowered. the performance of the presented rls method is analyzed by simulations, and it is shown that this method is interesting for application. 4 time - selective channel signal model based on multipath - doppler diversity representation is given in multi - path fast fading channel, and rls space - time receiver algorithm based on time - varied constraint condition is presented and the computational complexity of this method is analyzed

    4 、針對多徑快衰落通道下的ds - cdma系統，給出了基於多徑-多譜勒觀點描述的1百安電弓卜科東兔j憶學協士學位論文時間選擇性通道的信號模型，提出了基於變約束條件下的遞歸最小二乘空時接收機演算法並分析演算法的運算量，最後通過模擬分析了所提出的方法的性能。
  16. Firstly, tool - path for rough machining is generated through setting cutting depth, machining allowance and other parameters. interferences are resolved through raising the z - components of the generated cl point according different kind of situations. and then two methods to generate tool - path for finish machining is presented

    首先通過設定切削深度和加工余量等參數生成遞歸分割曲面模型的粗加工刀具軌跡，對刀具軌跡生成過程中多種抬刀情況分別進行處理，避免粗加工中的過切干涉。
  17. Firstly, wall ’ s transfer matrix is deduced by laplace transformation based on 3r2c thermal network model. secondly, frequency response of transfer matrix is calculated. thirdly, we make the frequency response of transfer matrix of stimulation model equate the theoretical frequency response of wall transient heat conduction by applying appropriate identification algorithm, from which we can obtain every polynomial ’ s coefficient of model transfer function, then each parameter of resistance and capacitance is calculated by appropriate optimization algorithm

    首先，根據模擬熱流網路模型用拉普拉斯變換推出墻體的傳遞矩陣;然後，計算傳遞矩陣的頻率響應;最後，採用頻域回歸方法求出模型傳遞函數各次項的系數，進而通過一定的優化演算法確定模型的各個熱阻、熱容參數，使通過模型建立的多項式s -傳遞函數與墻體瞬時傳熱的理論超越s -傳遞函數完全等價。
  18. A speed - sensorless control method for bldcm, which applies recurrent fuzzy neural network ( rfnn ), is presented in this paper based on the dynamic model of bldcm. the rfnn controller is used as a speed controller to mimic the optimized output of the system

    本文基於bldcm的動態模型提出了一種性能較好的遞歸模糊神經網路（ rfnn ）無速度傳感器bldcm控制方法，採用rfnn控制器作為轉速控制器來近似最優控制器輸出。
  19. In this thesis, our research work mainly focuses on the following four aspects : 1, studying and perfecting the generation algorithms of plant modeling, building three - dimensional plant model on the basis of studying current algorithms of plant modeling, combining iterated function system and l - system, we brought forward the random binary three - dimensional recursive model

    本文的主要工作內容集中在以下四方面： 1 、研究並改進植物建模演算法，生成三維的植物模型在研究目前植物建模常用演算法的基礎上，結合迭代函數系統法（ ifs ）和l系統法提出了樹木類植物的隨機二叉三維遞歸模型。
  20. The system realize the random binary three - dimensional recursive model, and generate three - dimensional tree model to compose natural scene ; in addition, it apply the accelerate algorithms based on the integrated polygon and texture, and realize interactive walkthrough in virtual environment

    該系統用c + +語言實現了隨機二叉三維遞歸模型，生成三維樹木造型組成自然景物，並應用基於幾何和圖像的混合漫遊加速演算法，實現了虛擬環境的交互漫遊。
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