Dissertation > Excellent graduate degree dissertation topics show

Key Techniques of Text Ming on Criminal Cases

Author: ChengChunHui
Tutor: HeQinMing
School: Zhejiang University
Course: Applied Computer Technology
Keywords: Text Mining Text Classification Text Similarity Computing Data Mining Crime mining Chinese word segmentation Feature selection
CLC: TP391.1
Type: Master's thesis
Year: 2010
Downloads: 177
Quote: 1
Read: Download Dissertation


Due to the rapid development of information technology , public security information system has accumulated vast amounts of business information . Facing a huge amount of public security information , an urgent need for the application of artificial intelligence technology , the data depth analysis and study of the law and the relationship of the various types of information , in order to better combat crime prevention and control of crime . Therefore , data mining techniques used in crime analysis is an urgent need for public security work . Text mining technology in recent years, an emerging field of data mining branch . In the massive case information , in addition to the strong degree of standardization of database data , there are a large number of cases of narrative text description. These cases text text mining technology research and application is very meaningful . In this paper, for a large number of criminal cases in the public security field text information , of the merits text mining technology research and application . The thesis of this article includes the following: (1) In the text preprocessing . Combined with the practical application of the need to establish some of the terms of public security business professional thesaurus ; , targeted special pretreatment method for both cases the characteristics of the text . (2) In the case of feature selection . In accordance with the demand of the practical application of research six feature selection algorithm selection algorithm , and by comparing the six kinds of features to determine the merits texts are mining a favorable feature selection algorithm . (3 ) In the case of classification mining aspects. The the case attribute information extraction methods and synonyms semantic analysis method , and improved based on the case similarity calculation method ; According to the criminal cases text category uneven features , improved Naive Bayesian multivariate Bernoulli where the model for improved Naive Bayesian the case text classification method uneven category . (4) in the application of the system design . Design and implementation of a typical three - tier C / S structure of the criminal cases of text mining system to achieve a similar criminal cases involving text retrieval module and criminal cases text classification module .

Related Dissertations

  1. Research on Text Classification Based on Biomimetic Pattern Recongnition,TP391.1
  2. Tourism Comments on the Internet’s Semantic Analysis and Usefulness Research,TP391.1
  3. Feature Extraction, Selection and Combination in Lipreading,TP391.41
  4. A Study on Healthcare Product Marketing Based on Data Mining Technology,F426.72
  5. Gao Zhong-ying academic thought and experience and use of Bufei Decoction treatment of common diseases of the respiratory system drug law,R249.2
  6. Bing- thick academic thought and clinical experience and empirical studies apply to turtle soups treatment of chronic kidney disease,R249.2
  7. The Design and Implementation of Bicluster Data Analyzing Software,TP311.52
  8. Research on Feature Selection and Construction in Emotion Speech Recognition,TP18
  9. Research on Clustering Algorithm Based on Genetic Algorithm and Rough Set Theory,TP18
  10. Based on data mining research tax audit case selection,F812.42
  11. Community-oriented education, personalized learning system and its implementation,TP391.6
  12. Data warehouse technology in the banking customer management systems research and implementation,TP315
  13. Design to E-learning System in Senior Vocational School Base on Moodle,TP311.52
  14. Design and Development of Teaching Quality Assessment System Based on Data Mining,TP311.13
  15. The Application of Association Rules Algorithm in Higher Vocational Colleges’ Endorsement of Impoverished Students,G717
  16. Based on Data Mining Technologies in Urban Water Supply Analysis and Decision,F299.24;F224
  17. Web Usage Mining and the Research of Personalized Recommendation,TP311.13
  18. Data Mining of Application in the School Management and Training Students,TP311.13
  19. Research on Employment Monitoring System of University Graduate,G647.38
  20. The Research and System Design of Assessment Model for Network Learning Based on Intelligent Computation,TP18
  21. A Research on Prediction of Academic Record Based on Neural Network and Cover Algorithm,TP311.13

CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Text Processing
© 2012 www.DissertationTopic.Net  Mobile