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Research and Application of Data Pre-processing in Chemical Mining

Author: ChenZuo
Tutor: ZhaoXia
School: Shanghai Jiaotong University
Course: Control Theory and Control Engineering
Keywords: Process Industry Implementation of manufacturing systems Data Mining Data preprocessing Support Vector Machine
CLC: TP311.13
Type: Master's thesis
Year: 2010
Downloads: 114
Quote: 2
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Abstract


For the process industry, the process is more complicated. Due to production conditions associated with real-time data and relational data in constantly changing technology staff requires the application of MES tools Analysis of the performance parameters of computing and conditions of the large amounts of data in real-time database and relational database to guide run adjustment of the operating conditions. The accuracy of real-time data to run the prerequisite and basis of various data mining tools, real-time data acquisition, correct or not directly affect the results of the online calculation. Chemical process instrumentation often need to work in harsh environments such as high temperature, vibration, corrosion, which makes the instrument prone to failure, the data acquisition system collected data errors; measurement data also may be subject to interference, drift and measurement environment The impact of real-time, so that the measured data is inaccurate. The wrong measurement data often result in serious consequences. It is in this context that combined with the actual situation of a state-owned large-scale chemical plant, carried out an in-depth study of the chemical process real-time data, data preprocessing methods to explore all kinds of real-time data to obtain a pre-processing based on support vector machine regression mixed algorithm. Preprocessing data mining system using real-time data using the research method can effectively reduce the noise of the data acquisition and fill correction of erroneous data and missing data, improve the quality of real-time data. In conjunction with the algorithm, this paper. NET development tools, based on the VS2005 development platform, the application of the ADO technology, XML technology, Matlab COM components technology, OSI's PI real-time database and Microsoft's SQL Server relational database as the underlying data sources developed a real-time data preprocessing system. Real-time data acquisition and storage, the system of Applied Research Institute algorithm, set cycle to achieve real-time data preprocessing and the fault sampling points give identification. Ultimately the integration of real-time data pre-processing system used in data mining systems and other information associated with the real-time data integration system. Pretreatment system based on real-time data for process industries MES effectively improve the quality of real-time data, provide a support system of real-time data analysis for Chemical Process data mining and other applications. It improves the the enterprise production monitoring project implementation and modernization of decision-making level, and give full play to the effectiveness of enterprise resource management system and corporate executive manufacturing system.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer software > Program design,software engineering > Programming > Database theory and systems
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