predictive models 中文意思是什麼
-
Also a refined - pulp quality predictive model, with specific energy, specific load as the model inputs, and beating degree, wet weight as the model outputs, is presented. simulation results show that the models can be acted as theoretical bases for the automatic control of high - consistence pulp refining process
即，建立了以原漿流量、白水流量、盤磨機功率為輸入變量，比能量、比負荷、濃縮機漿位為輸出變量的動態模型，以及基於比能量、比負荷的成漿質量預報模型。 -
In this paper, a multi - area diagnostic & predictive model are proposed for combustion process in gasoline engines. models are composed of thermodynamic model, turbulence flams propagation model & nitrogen oxides ( nox ) formation model
本文建立了汽油機燃燒過程的多區診斷及預測模型，其中包括氮氧化物生成模型和廢氣再循環降低氮氧化物生成的優化模型。 -
Mechanistic models are considerably more robust as predictive tools than are purely empirical models.
機械模型作為預測工具，比純粹的經驗模型要完善得多。 -
Predictive data modeling is used to create the models
預測數據建模用來建立模型。 -
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。 -
The mechanism and influencing factors of concrete carbonation are analyzed, and various predictive models of concrete carbonation depth are discussed
摘要分析混凝土碳化機理和影響因素，總結混凝土碳化深度的多種預測模型，並根據工程實例對碳化模型進行比對和分析。 -
Mathematical and predictive models of sars epidemic disease and mechanism of prevention and control
傳染病數學建模及預測預防控制機理研究 -
On the base of studying in arithmetic of predictive control, different math models are used to approach the control system. general water level control, pid control and predictive control using in sewage pumping station are compared. by simulating the different models using in control system, the conclusion that the aim of saving power and preventing pollution in sewage pumping station can be achieved by using predictive control is got
在預測控制演算法研究的基礎上，分析了用不同的數學模型逼近污水泵站排放系統，比較了採用常規水位控制、 pid控制和預測控制對污水泵站排放系統的控制效果，在模擬結果對比的基礎上，得到了採用預測控制可以更好的解決節能無污控制目標的結論。 -
In this paper, we derive predictive models of system and auxiliary system from double constant alterations respectively. the controller based on d - step ahead predictor can locate the closed loop poles at desired positions, whose parameters are adjusted by estimations of plant parameters that are separately estimated. an auxiliary estimator is developed to avoid ill - condition in solving diophantine equation. simulations show that these control systems have better dynamic responses under existence of measurable disturbance
引入雙恆等變換推導出系統及輔助系統的的d步預測模型，基於估計器的自校正控制器能將閉環極點配置在所希望的位置，它的參數是由與其相互獨立的對象參數調節.提出使用輔助估計器克服丟番方程的病態問題.模擬表明在存在可測干擾的情況下該系統具有良好的動態性能 -
Abstract : in this paper, we derive predictive models of system and auxiliary system from double constant alterations respectively. the controller based on d - step ahead predictor can locate the closed loop poles at desired positions, whose parameters are adjusted by estimations of plant parameters that are separately estimated. an auxiliary estimator is developed to avoid ill - condition in solving diophantine equation. simulations show that these control systems have better dynamic responses under existence of measurable disturbance
文摘:引入雙恆等變換推導出系統及輔助系統的的d步預測模型，基於估計器的自校正控制器能將閉環極點配置在所希望的位置，它的參數是由與其相互獨立的對象參數調節.提出使用輔助估計器克服丟番方程的病態問題.模擬表明在存在可測干擾的情況下該系統具有良好的動態性能 -
Models incorporating time - varying covariates enhanced predictive power by reducing misclassification and incorporating day - to - day changes in extra - renal organ system failure and the provision of dialysis during the course of arf
通過減少錯誤分類，加入腎外器官衰竭逐日變化和arf期間透析的提供，這些時間變化因素的加入增加了模型預測力。 -
There are many plants that have the character of time - varying, large delay, large inertia in the process of production of modern power station such as the superheated steam temperature, the reheated steam temperature, the water treatment of boiler and the load regulation. some of them have the strong character of nonlinear and some of them are multivariable coupling systems it is very difficult to obtain good effect of control by conventional pid control. it is necessary to set up the mathematics models of controlled plants if applying control means of modern control theory such as self - adaptive control, optimal control ， decoupling control and predictive control. and these control systems have large calculation and bad character of real time in general. these disadvantages make them be not able to meet the need of real production process and limit the application of them in modern power station. now the generator units are developing towards large capacity and high parameters. many new kinds of generating electricity means are coming into being. the characers of production units of power station become more and more complex but the demand to quality of control becomes more and more strict. the new control means are in bad need to control them effectively
現代電站的生產過程中存在過熱汽溫、再熱汽溫、鍋爐水處理、負荷調節等許多大遲延、大滯后、特性時變的對象，它們中有些還是具有強非線性特性的對象或多變量耦合系統，採用常規的pid控制手段很難取得良好的控制效果。若應用現代控制理論中的自適應控制、最優控制、解耦控制、預測控制等控制手段，則需要建立被控對象的數學模型，而且往往控制系統的計算量大、實時性差。這些缺點使其很難滿足實際生產過程的需要從而極大地限制了其在現代電站中的應用。 -
By incorporating exposures over time, the discriminatory power of predictive models in arf can be significantly improved
隨時間加入暴露因素， arf預測模型的區分能力能明顯改善。 -
This paper mainly deals with the multivariate bayesian inference theory used in the modern economical and management science. this includes the bayesian inference theory about three important kinds of linear models, including the single equation model, multiple equation model system and var ( p ) predictive model, and their application in economic forecasting and quality control, and also the design for the bayesian classification identification method among multiple populations
本文主要研究現代經濟管理中的多元貝葉斯推斷理論，包括單方程模型、多方程模型系統和向量自回歸var （ p ）模型的貝葉斯推斷理論及其在經濟預測與質量控制中的應用，以及多總體的貝葉斯分類識別方法的構造。 -
The complexity of ecological interactions means that it is not possible to construct predictive mathematical models of living systems based on these laws of thermodynamics
生態相互作用的復雜性意味著，以這些熱力學定律為基礎去構建用於預測的數學模型是不可能的。 -
In order to test the prediction feasibility of total sugar, total nitrogen, nicotine, potassium and chlorine content in tobacco sheet, predictive models were established by partial least square ( pls ) technique, based on the data of nir diffuse reflective spectrum and determined chemical results of 250 tobacco sheet samples
摘要為了研究近紅外光譜分析技術預測煙草薄片中的總糖、總氮、煙堿、鉀和氯含量的可行性，本文以250個具有代表性的煙草薄片樣品的近紅外漫反射光譜數據和它們相時應化學測定數據為基礎，通過偏最小二乘回歸法（ pls ）建立了以上5種成分的近紅外分析模型，並對模型的預測效果進行了評價。 -
Considered the actual situation in china ' s stock exchanges, the author regards “ st ” ( special treatment ) as the sign of “ financial distress ” in this dissertation. by applying fisher ’ s multivariate discriminating analysis and logistic regressive analysis, the author creates two predictive models. the main conclusion of this dissertation are as follow : 1. the reasons of the corporation financial distress are due to the poor earnings, the lower net cash and the liquidity problem. 2. the financial ratio indexes of the listed corporation in china include the information of the forecasting financial distress
隨著我國證券市場的日益規范化，根據在客觀、公允基礎上披露的上市公司的財務報告，通過選擇信息含量高的財務指標構建合理的預測模型，獲得對那些財務狀況出現嚴重惡化的上市公司的預警信號不僅是可行的，而且還能使債權人避免貸款的高風險，投資者避免或減少投資損失，公司經營者根據這些信號及早採取相應措施。 -
A two - zone and a multi - zone diagnostic and predictive models are proposed for combustion process in gasoline engine, contains spark ignition process, transfer heat and no emission calculation, in chapter 2
第二章建立了汽油機燃燒過程的雙區和多區診斷及預測模型，其中包括火焰傳播模型、傳熱模型、點火計算和火焰核發展模型、 no _ x的生成模型以及工質物性參數的計算模型。 -
In the end, on the basis of introducing technical flow in hydrocracking units, two predictive models of jet fuel endpoint in hydrocracking units are built based on bpnn and rbfn, a new dmc project using the neural networks as the identified model is proposed, and it provides good conditions for online quality control of jet fuel endpoint
最後介紹了加氫裂化裝置的生產工藝流程，建立了基於bf網路與rbf網路的加氫裂化航煤干點的預測模型，並提出了航煤干點基於神經網路辨識的動態矩陣預測控制方案，為實現航煤干點的在線質量控制打下了基礎。 -
5 ) this dissertation presents new predictive models for the transient stability and small signal stability based on support vector machine theory that can solve the problems such as finite samples. a new method of feature selection and sample condensation is proposed to build predictive model which improves the practicability of the model greatly
5 ）論文首次利用基於小樣本技術的支持向量機理論，設計了新的暫態穩定、小擾動穩定特徵值預測模型，提出了新的適合預測模型構建的特徵選擇、數據采樣策略，提高了模型的實用性。
分享友人