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Risk factor analysis of foodborne pa...
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University of Guelph (Canada).
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Risk factor analysis of foodborne pathogen infection using statistic and soft computing approaches.
紀錄類型:
書目-語言資料,印刷品 : Monograph/item
正題名/作者:
Risk factor analysis of foodborne pathogen infection using statistic and soft computing approaches./
作者:
Qin, Lixu.
面頁冊數:
95 p.
附註:
Source: Masters Abstracts International, Volume: 47-05, page: .
Contained By:
Masters Abstracts International47-05.
標題:
Artificial Intelligence. -
電子資源:
http://pqdd.sinica.edu.tw/twdaoeng/servlet/advanced?query=MR47812
ISBN:
9780494478127
Risk factor analysis of foodborne pathogen infection using statistic and soft computing approaches.
Qin, Lixu.
Risk factor analysis of foodborne pathogen infection using statistic and soft computing approaches.
- 95 p.
Source: Masters Abstracts International, Volume: 47-05, page: .
Thesis (M.A.Sc.)--University of Guelph (Canada), 2009.
To develop appropriate prevention and control strategies for sporadic cases of illness, it is important to accurately model the system and analyze the risk factors. The objective of this study is to utilize both statistic and soft computing models to identify the significant risk factors for Salmonella Typhimurium DT104 and non-DT104 infection in Canada, and compare the findings. Previous studies have focused on analyzing each risk factor separately using single variable analysis, or modelling multiple risk factors using statistic models, such as logistic regression models. In this study, both neural network models and statistic models are developed and compared to determine which method produces superior results.
ISBN: 9780494478127Subjects--Topical Terms:
769149
Artificial Intelligence.
Risk factor analysis of foodborne pathogen infection using statistic and soft computing approaches.
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Risk factor analysis of foodborne pathogen infection using statistic and soft computing approaches.
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Source: Masters Abstracts International, Volume: 47-05, page: .
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To develop appropriate prevention and control strategies for sporadic cases of illness, it is important to accurately model the system and analyze the risk factors. The objective of this study is to utilize both statistic and soft computing models to identify the significant risk factors for Salmonella Typhimurium DT104 and non-DT104 infection in Canada, and compare the findings. Previous studies have focused on analyzing each risk factor separately using single variable analysis, or modelling multiple risk factors using statistic models, such as logistic regression models. In this study, both neural network models and statistic models are developed and compared to determine which method produces superior results.
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Genetic algorithms are further incorporated to extract the optimal subset of factors that provide an accurate classification. The genetic algorithm based neural classifier significantly outperform the statistic models and neural networks alone because either statistic models or neural networks alone are not able to consider factors' nonlinear interaction with maximum likelihood estimate, which selects the significant risk factor based on likelihood ratio test. A neuro-fuzzy based method for predicting Salmonella Typhimurium infections is further proposed.
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In addition, neural network models are developed to study the effect of climatic factors for Salmonella infections. Simulation studies show that neural networks perform better than corresponding linear, quadratic and cubic regression models in terms of correlation coefficients between Salmonella infections and climate factors.
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