reduction theory 中文意思是什麼
reduction theory
解釋
約化理論-
This paper recurred to the basic theory of rough set of data mining and under the direction of the frame of intelligent decision, the main theories include i ) the different methods of data mining on the base of rough set are used to deal with typical decision system namely consistent decision system and inconsistent decision system in order to carry through data reduction and rule distilment ; ii ) in the environment of dynamic increment database, the methods of data reduction to deal with the original data and increment data are discussed in the consistent and inconsistent decision system ; iii ) the method of data mining of rough set is analysized to treat with the attributes with priority ; iv ) on the base of basic rough set theory, the data analysis methods of amalgamation of rough set theory ; v ) and also the pre - disposal method to database is analysize
本文從系統工程進行決策分析的角度出發，藉助數據挖掘技術中粗糙集的基本理論，在智能決策框架的指導下，研究了基於數據挖掘的智能決策理論及方法。主要理論包括：如何利用粗糙集對典型的決策系統即相容性決策系統和不相容性決策系統運用不同的數據挖掘方法進行有效的數據約減和規則提取；在增量動態的數據庫環境下討論了在典型決策系統中對原始數據和增量數據進行數據約減的方法；分析了帶有優先權屬性的粗糙集數據挖掘方法；以基本粗糙集為基礎探討了粗糙集擴展模型的數據分析方法；研究了粗糙集數據預處理方法。 -
A interception probability reduction theory by means of comparing the rppm with constant pri pulse sequence is also analysised in this paper, further more the strong properties of eccm of the rppm is discussed and analysised
此外，本文還介紹了隨機脈位調制信號比較于等重復周期（ pri ）脈沖信號來降低信號被截獲概率的原理，討論並分析了隨機脈位調制脈沖多普勒雷達較強的抗干擾能力。 -
3. we attack the reduction of peak load problem at repository side applying queue theory
基於排隊論，提出一種在存儲庫端應用緩存器的證書狀態信息分發方法。 -
An approach to attribute reduction based on rough set theory
基於粗糙集的屬性約簡演算法 -
Attribute reduction is the core of rough sets theory
屬性約簡是粗糙集理論的核心內容。 -
Real rough set theory and attribute reduction
實域粗糙集理論及屬性約簡 -
According to roof safety factor of 1. 2 for the mined - out area, minimum safety roof thickness at different rock in various span mined - out area was calculated by flac software, which transfixion of plastic zone was taken as criteria of roof breakage by using strength reduction technology and dichotomy theory
摘要利用強度折減技術和二分法原理，以塑性區的貫通作為頂板破壞的標準，當采空區頂板的安全系數等於1 . 2時，利用flac軟體計算得出各種跨度空區在不同巖層中的最小安全頂板厚度。 -
It can be used not only to change the fire precision of the base bleed projectile, but also to improve the effect of reduction drag and expansion range. the calculating model of the secondary expansive pressure of the burning gas is constructed by means of analysis of the experimental resuits, it has been confirmed that the new base bleed unit can be designed, with the secondary expansive principle of the burning gas pressure. the engineering project of a hybrid base - bleed - rocket high - level efficient extended - range projectile is designed, with the secondary expansive principle of the burning gas pressure, the feasibility and the true worth of its engineering applications is validated in theory
本文提出了底排燃氣壓力不隨外部壓力變化，既可改善底部彈射擊精度又可提高減阻效果的二次擴張原理，建立了底排燃氣二次擴張壓力的計算模型，並通過採用二次擴張原理的新型底排裝置與傳統底排裝置的對比試驗，驗證了新型底排裝置結構實現的可行性；完成了基於底排燃氣二次擴張高效增程原理的底排?火箭復合高效增程彈方案設計及其有關計算，從理論上驗證了其工程應用的可行性和實際價值。 -
After reduction, the effective numerical method is adopted to explore the response and stability information of the system, and the state of motion and type of the bifurcation are analyzed by floquet theory
降維之後，採用有效的數值計算方法分析系統的動響應和穩定性，利用floquet理論分析其運動狀態和分岔類型。 -
Based on the information theory, it is proved that the entropy of information system and the mutual information of decision system are constant in the hierarchization of attributes. so the rst hierarchical reduction approaches have strict mathematic basis. the application in acquiring the control decision of a cement kiln shows the validity of the hierarchical reduction approach
本文從信息理論的角度分別證明屬性分層遞階不改變信息系統的信息熵和決策系統的互信息，從而使分層遞階約簡演算法體系具有嚴格的數學基礎；分層遞階約簡演算法在某水泥窯爐控制決策獲取中的應用證實其有效性。 -
As a novel tool for knowledge extraction, the rough set theory can supply reliable data to maintenance technicians for rapid and effective fault diagnosis by the " reduction " of information system and extracting a set of minimal diagnostic conditions in the fault diagnosis system
應用粗糙集理論挖掘工具，對故障信息系統「約簡」 ，在故障診斷系統中提取最小診斷條件集，可為設備維護人員提供快捷、有效的診斷依據。 -
In this dissertation, a full and detailed instruction of mimo - ofdm signal detection algorithms is given together with the computer simulation results. besides, the lattice theory and basis reduction are introduced in mimo - ofdm signal detection to get better performance
文中系統而全面的介紹了目前mimo - ofdm系統主要檢測演算法，通過模擬比較了不同演算法的性能;還結合格理論和基約減對演算法進行了優化，提高了檢測性能。 -
Based on this model, a full introduction of all kinds of signal detection algorithms is given. the lattice theory is introduced and formed a new mimo - ofdm system on lattice space. with lll basis reduction applied on this model, the detection algorithms are optimized
第二章首先給出了mimo - ofdm系統的一般數學模型，基於此模型，重點介紹了mimo - ofdm系統各種信號檢測演算法，並通過引入格理論，建立了格空間的mimo - ofdm系統，利用基約減演算法對檢測進行優化。 -
As the problem of attribute is one of core problems in rough sets theory, this paper puts forward an improved algorithm based on genred reduction algorithm, what " s more, the improved algorithm is applied into client purchase analysis field
屬性約簡問題是粗糙集理論的核心問題之一，本文提出了一種基於genred的最大概率因子的改進屬性約簡演算法，並將該演算法應用在市場營銷的客戶購買分析方面。 -
In this paper, the theory of negatively charged surface states is used to investigate dynamic breakdown characteristics and the increase of gate - drain breakdown voltage as well as the reduction of saturated drain - source current after sulfur passivation. the measure which can improve the stability of sulfur passivation is proposed
本論文通過對gaasmesfet擊穿機理和硫鈍化機理的研究，用負電荷表面態理論，解釋了gaasmesfet動態擊穿特性及硫鈍化后柵漏擊穿電壓增大、源漏飽和電流減小的機理，提出了改善硫鈍化穩定性的措施。 -
Correspondingly, its theory is up to developed to a higher level. in this thesis, taking the risk management activities of the two parties of insurance as the perceptive and the process of engineering insurance as the clue, the establishment of risk management system is analyzed during the process of risk identification and evaluation, insurance contract arrangement, disaster prevention and loss reduction, and the compensation management. furthermore
本文在查閱大量文獻的基礎上，對疏浚泥泵及排泥管道的動態特性現象進行了分析，並應用面向對象的c + +語言開發了比較通用的計算機程序，對緊急關閥、水下挖掘機具（如絞刀、斗輪等）吸泥口堵塞以及事故拋泵等典型的動態工況特性進行了計算和分析。 -
Attribute reduction of groundwater quality index based on the rough set theory
基於粗集理論的地下水水質指標屬性約簡 -
( 2 ) respectively by elastic theory analyses and methods of structural mechanics, transverse static analytical equations for flexible pipeline rigid pipeline are established whose outcomes are applied in numerical example to compare those with that by finite element method. ( 3 ) considering interaction of filled soil, pipeline and foundation, with an eye to non - linear soil model, in view of the initial geo - stress field and the effects of interface between soil and pipeline, and by finite element method the calculational model and method are built for transverse stress in pipeline. then, by the great finite element analytical software ansys, those outcomes are applied in calculation example of positive buried pipe to educe the distribution of circumjacent soil pressure and stresses on cross section and to compare it with that calculated by conventional ways before those outcomes are applied in engineering case of positive buried pipe with flexible filled materials to confirm distribution of soil pressures after the measure for reduction and to compare it with measurements. as a result, the model set up in this paper is proved to be applicable after all above - mentioned analyses
本文基於彈性理論和有限元原理與方法，分析了上埋式地下管道橫向力學計算方法和性狀並探討了上埋式地下管道的減荷等問題： （ 1 ）在分析現有幾種典型的管道垂直土壓力計算方法的基礎上，探討了影響垂直土壓力的主要因素以及改進的方法； （ 2 ）分別通過彈性理論分析法和結構力學的方法，建立了地下管道柔性圓環和剛性管涵的橫向靜力計算方程，並應用在算例中，把所得結果和有限元方法所得結果進行對比分析； （ 3 ）考慮填土、管道和基礎的共同作用、土體的非線性特性、初始應力場以及土體和管道的接觸面因素的影響，利用有限元的思路，建立了地下管道橫向力學有限元計算模型和方法，並且採用大型有限元分析軟體ansys ，針對上埋式管道工程算例，得出了管周土壓力以及管道橫截面應力的分佈狀況和規律，並和理論值進行對比；針對施加柔性填料的上埋式管道工程實例，得出了減荷后的土壓力分佈，並和實測值進行了對比。 -
Marx ' s reduction theory and recycle economy system
馬克思再生產理論與循環經濟系統 -
Practice results of tax reduction theory advanced by supply - side economics and enlightenment
關于供給學派減稅理論的實踐效果的評析及其啟示
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