data pre processing 中文意思是什麼
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Data pre - processing based on rough set theory
基於粗糙集理論的數據預處理 -
In order to improve test precision, techniques such as auto - gain control, proper sampling rate select and dithering should be applied into the data acquisition process, and data pre - processing techniques should be used to eliminate data with careless error and correct data with system error
為了提高測試精度，在數據採集中，可以採用量程自動切換、合理的采樣頻率以及加擾技術；對採集的數據，需要進行預處理，主要包括剔除含有粗大誤差的數據和消除系統誤差等。 -
This paper describes the principle of the spring tension measuring system for a newly developed foldable mechanism, establishes the theoretical model for thd data processing, and offers the data pre - processing, reprocessing and error evaluation methods
摘要論述了所研製的一種折疊機構彈簧拉力測量系統的原理，主要分析研究了測量系統中拉力測量數據的理論模型及預處理、再處理、誤差評定的方法。 -
4. on original data arrangement of views, first, this paper discusses the instance of line overlap and gives the concept of hidden point, next, a method for breaking line is put forward by the means of handling two lines intersection, at the end, data check and correction is described through topological relationship between primitives and dimension set of drawing. to make a summary, from the viewpoint of practicality, the method of engineering drawing pre - processing proposed in this paper over comes traditional
4 .在視圖原始數據整理方面，首先討論了重疊邊的分解與重構方法;然後給出了隱含點的概念，通過對二維線段相交情況的處理分析了求取隱含點的斷線演算法;最後描述了如何利用實體的拓撲關系檢查輸入視圖中的錯誤以及利用工程圖中的尺寸集來校正這些錯誤。 -
Chapter 5 introduces sampling - holding device principle, types and main performance parameters. we discussed the relationship between the sampling and the s - h device. chapter 6 discussed the pre - processing of sampling data including the scale transforming, digital filtering, reducing oddity and eliminating or pick - up tread item as well as smoothing process of the sampling data
在第6章，對采樣數據的預處理進行討論，包括采樣數據的標度變換、采樣數據的數字濾波、剔除采樣數據中的奇異項、去除或提取采樣數據的趨勢項、采樣數據的平滑處理等數據處理方法。 -
Because of the randomness, the periodicity and the impact property of load changes, the short - range electric load forecasting accuracy is related to the pre - processing of original data, the load forecasting model, the sudden change of climate etc. without an appropriate mathematical model, it is difficult to meet the demand of farecasting accuracy by using computer software
短期電力負荷預報的準確度與原始數據的預處理、負荷特性、預報模型、氣候突變等因素有關，因為負荷變動具有隨機性、周期性和沖擊性的特性，如果不採用恰當的數學模型，利用計算機軟體技術就難以滿足預報準確度要求。 -
Secondly, aiming at the characteristics of e - business, this paper studied the data cleaning step of data pre - processing and proposed new method of data cleaning which can improve the efficiency of association rule mining algorithm
本文針對電子商務環境的特點，研究了數據準備中的數據清理步驟，提出了新的可以提高挖掘效率的清理方法。 -
The first guess spectrum, the wind data necessary for deriving the guess spectrum, the pre - processing of sar images and the influence of the radar channels, which are involved in the retrieval, are discussed
對反演涉及的猜測譜問題，猜測譜涉及的風場數據問題， sar圖像預處理問題以及雷達波段的影響問題進行了探討。並對orsi - sar - ow軟體進行了升級。 -
Mbss system is a complex system with different kinds of sensors. the author analyzed the main sources of error of the system, studied the synthetic error compensation method for sonar array. besides, methods for pre - processing of on - ship data and combined processing of time and space for depths were also studied, which could remove extremes and enhance the quality of digitized final come out efficiently
多波束測深系統是一個多傳感器組合的復雜系統，本文分析了系統主要誤差的來源，論證了聲納基陣誤差綜合修正方法，並提出了測量數據的預處理方法和測深數據的時間與空間聯合處理方法，可以有效剔除野值，提高數字成果圖的成圖質量。 -
As a practice of above idea and theory, this paper rewrites a structure analysis of finite element program which based on the object - oriented programming technology. using current popular visual c + + developing tool and odbc database connectivity technology, this paper develops a data management program fedms of cae software pre - processing and post - processing data. the program realizes data management using engineering database, visual i / o method and promotes the integration of cae software into civil engineering cad system
此外，作為上述理論和方法的實踐，重寫了一個採用面向對象技術和有限元方法的通用平面桿系結構分析程序finite ，應用當前比較流行的visualc + +開發工具的odbc數據庫連接訪問技術，研製了一個后臺基於microsoftaccess數據庫的cae軟體數據前後處理系統fedms （ finiteelementdatamanagementsystem ） ，對結構分析計算中的前後處理數據進行了有效的管理。 -
The theory analysis and method principle are presented the characteristics of the two methods are studied by computer numerical simulation. the results show that both the methods are reasonable and feasible. focused on the features and requirements of flutter test data processing, the methods presented here are used to pickup the major information as a pre - processing technique the application scheme is brought out for flutter boundary prediction based on subcritica
根據顫振試驗的原理和觀測信號特點，本文將所提出的兩種時頻域濾波演算法引入到了飛機結構亞臨界響應分析的顫振邊界預測（ fbp ）研究當中，給出了一種新的顫振邊界預測方案，即通過聯合時頻分析與時頻域濾波提取有效信號再進行模態參數提取與顫振邊界預測。 -
This software is composed of three modules : the pre - processing, analysis and calculation and post - processing. in the pre - processing, it includes automatic generation of structural meshes, adding contraints and loads and so on ; in the analysis and calculation, the wave - front is used to calculate and establish data files related ; in the post - processing, strong and visual function of vc + + is utilized to display structural deformation graph, contours as well as color cloud pictures. in this last processing, deformation graphs are divided into two types - boundary deformation graph and entire deformation graph in order to show deformation condition entirely ; contour graph comprises isodisplacement graph and isostress graph ; color cloud picture comprises cloud picture of displacement and that of stress, whose drawing principle is isoparametric mapping method
該軟體由三個模塊組成，即前處理、分析計算和后處理。在前處理模塊中，主要包括結構網格的自動剖分、施加約束以及載荷等；在分析計算模塊中，採用波前法計算並形成有關數據文件；在後處理模塊中，利用vc + +強大的可視化功能自動整理計算成果並顯示結構變形圖、等值線圖和彩色雲圖。其中，變形圖分為兩種?外框變形圖和整體網格變形圖，以便能綜合顯示變形情況。 -
Logging method and pre - processing method of logging data have been ascertained for the logging tool formed by coaxial line phase water cut meter and other function units such as temperature meter and flow meter. data of 10 oil wells obtained by the logging tool has been interpreted using the soft - measuring model, and the result is accordant with data of ground measurement. it indicates that the soft measurement model of coaxial line phase water cut meter has high interpreting precision
確定由同軸線相位法含水率計組成的組合測井儀的現場測井方法以及測井數據資料的預處理方法，並利用軟測量解釋模型對現場所測10口井的資料進行解釋，結果與地面計量符合較好，說明同軸線相位法含水率計的軟測量模型在現場測井解釋中具有較高的解釋精度。 -
The practical methods of signal pre - processing ( anti - disturbance filtering, data smoothing ) and character extraction ( differential limitation, absolute peak value, peak - to - peak value, area of wave and self - adaptive threshold adjustment ) are introduced
並介紹了一些實用的信號處理和特徵提取演算法，包括可以實時運算的用於抑制干擾的濾波器和數據平滑演算法及用於定量分析的差分超限數、絕對峰值、峰-峰值、波形下面積和自適應門限調整等演算法及其應用。 -
At first, we introduce the working flow of ir image processing and the structure of the image processor, then we present the goal of the design : image pre - processing and data communication. in the part of the image pre - processing, the factors causing the nonuniformity of fpas are analyzed particularly, and several. resolutions are presented, which characters are illustrated at last. according to the design requirement, we decided to implement the two - point nonuniformity correction method in fpga
在圖像預處理部分，首先就紅外成像傳感器非均勻性的成因進行了詳細分析，總結了紅外成像傳感器非均勻性校正的主要方法，分析了各種方法的優缺點；根據成像制導信息處理機實時處理的要求，利用現場可編程門陣列實現了基於浮點運算的兩點法非均勻性校正模塊。 -
Data pre - processing, digital filter with window function, and lagrange equations smooth curve are programmed by software in the thesis. the aircraft power supply parameters are designed by software in details
完成採集數據的預處理、 fft變換、加窗函數數字濾波的實現、過零測頻法、插值擬合曲線、飛機供電系統參數數據處理的編程。 -
Based on the hardware architecture of ivtds, are discussed in detail the component units of the system which are image data acquisition unit, data pre - processing unit and logical control etc. the design of the fpga function and its implementation are carried on vhdl language and top - down method
還在介紹紅外運動目標檢測與跟蹤系統組成的基礎上，詳細討論了圖像數據採集部分的結構，圖像數據的預處理， dsp與fpga之間的通訊和fpga對其他器件的控制邏輯等。 -
Meta - information generation and maintenance ), which will lessen the cost of data pre - processing. rough decision support method is proposed to overcome the disadvantages described in the second observation
論文還針對現存粗糙集方法在規則約簡過程中決策表的決策支持能力損失問題，提出粗糙決策支持方法以彌補現存方法的不足。 -
So, the research of cad model reconstruction from scattered point cloud should be carried out urgently. the main key techniques contents of surfaces reconstruction from scattered point cloud data include data pre - processing, such as denoising data 、 filling holes and simplifying data, segmenting data, producing quadrilateral domains, and fitting b - spline surfaces
本文直接以測量獲得的散亂點雲數據為對象，研究了點雲數據的幾何特性計算、平滑處理、孔洞修補、數據簡化等，在此基礎上，進一步研究了點雲數據分塊、四邊界區域劃分及曲面擬合。 -
Due to the simpleness and compactness of meta - information, the time complexities of meta - information based rough set methods is generally lower than their non - meta - information versions. besides, since the meta - information is reusable and can be maintained in a dynamic way, the rough set method can share the same procedure for data pre - processing ( i. e.,
另外，由於元信息可以保存並能動態維護，基於元信息的粗糙集方法可以共用相同的數據預處理過程（即元信息生成與維護） ，從而減少了數據預處理時間，提高了效率。
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