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

Research of Data Mining Technology in Tianjin Subway Dynamic Database Based on Associated Mode

Author ZhaoJianSong
Tutor ChenZaiPing
School Tianjin University of Technology
Course Control Theory and Control Engineering
Keywords EclateII Association rules Fuzzy query Database Mining Query
CLC TP311.13
Type Master's thesis
Year 2009
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The current rapid development of new IT technology , e-commerce and the rapidly growing popularity of the Internet , resulting in large amounts of data are stored in the database in various application areas , the data set contains a lot of useful knowledge , how to find a variety of large databases in hidden , previously unknown information can be effectively applied is particularly important , and this is the data mining tasks to be completed . Foreign scholars in recent years , a series of data mining theory , major IT companies in the world , such as IBM, Oracle and Microsoft have launched their respective data mining products . An important research branch of data mining , association rule mining , its main purpose is to discover hidden from large data set , meaningful properties between law . The form of simple , easy to understand, and is the primary means of extracting knowledge from large data , research and application of the association rule mining has been a great concern of scholars in areas such as databases , artificial intelligence , and statistical and achieved a lot of research . Tianjin Subway Environmental Control System (ECS) fault diagnosis key technology research projects funded first study the method of mining association rules with project constraints , the improved algorithm EclateII improved the original Eclate algorithm lack of more suitable for the actual situation of the of Tianjin subway database system , and theoretical verification ; then proposed association rule mining algorithm with fuzzy quantitative constraints , especially the membership function set , and the proof will be in the fifth chapter from the practice on to prove the feasibility of the method ; certain theory is applied to the actual final Tianjin subway database data mining system design , according to the actual situation of Tianjin subway database system , data mining to the practical application of the theory of algorithms and enterprise issues raised combination of study and discussion , and propose appropriate solutions .

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