研究生: |
黎中旦 Le - Trung Dan |
---|---|
論文名稱: |
Enhanced Time-Dependent Evolutionary Fuzzy Support Vector Machine Inference Model for Cash-Flow Prediction and Estimate at Completion Enhanced Time-Dependent Evolutionary Fuzzy Support Vector Machine Inference Model for Cash-Flow Prediction and Estimate at Completion |
指導教授: |
鄭明淵
Min-Yuan Cheng |
口試委員: |
周瑞生
Jui-Sheng Chou 潘南飛 Nang-Fei Pan 鄭道明 T-M, Cheng |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 營建工程系 Department of Civil and Construction Engineering |
論文出版年: | 2011 |
畢業學年度: | 99 |
語文別: | 英文 |
論文頁數: | 110 |
中文關鍵詞: | Time series 、Fuzzy Logic 、Weighted Support Vector Machines 、Fast Messy Genetic Algorithms 、Cash flow Prediction 、Estimate at Completion |
外文關鍵詞: | Time series, Fuzzy Logic, Weighted Support Vector Machines, Fast Messy Genetic Algorithms, Cash flow Prediction, Estimate at Completion |
相關次數: | 點閱:254 下載:0 |
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This study has a two-fold objective. First, it conducts a mechanism enhance time series data of the time-dependent evolutionary fuzzy support vector machine inference model (EFSIMT). The enhanced model is called EFSIMET. The EFSIMET was developed particularly to treat construction management problems that contain time series data. The EFSIMET¬ is an artificial intelligent hybrid system in which fuzzy logic (FL) deal with vagueness and approximate reasoning; support vector machine (SVM) acts as supervise learning tool; and fast messy genetic algorithm (fmGA) works to optimize FL and SVMs parameters simultaneously. Moreover, to capture the time series data characteristics, the author develops fmGA-based searching mechanism to seek suitable weight values to weight the training data points. This random-based searching mechanism has the capacity to address the complex and dynamic nature of time series data; thus, it could improve the model’s performance significantly.
Nowadays, construction management is facing complex and difficult problems due to the increasing uncertainties during project implementation. Therefore, the second objective of this study is proposed for the application of EFSIMET to treat two typical problems in construction: forecasting cash-flow and estimate at completion. Through performance’s comparison with previous works, the effectiveness and real world application of EFSIMET are proved. Hence, this model may be use as an intelligent decision support tool to assist the decision-making process to solve the construction management’s difficulties.
This study has a two-fold objective. First, it conducts a mechanism enhance time series data of the time-dependent evolutionary fuzzy support vector machine inference model (EFSIMT). The enhanced model is called EFSIMET. The EFSIMET was developed particularly to treat construction management problems that contain time series data. The EFSIMET¬ is an artificial intelligent hybrid system in which fuzzy logic (FL) deal with vagueness and approximate reasoning; support vector machine (SVM) acts as supervise learning tool; and fast messy genetic algorithm (fmGA) works to optimize FL and SVMs parameters simultaneously. Moreover, to capture the time series data characteristics, the author develops fmGA-based searching mechanism to seek suitable weight values to weight the training data points. This random-based searching mechanism has the capacity to address the complex and dynamic nature of time series data; thus, it could improve the model’s performance significantly.
Nowadays, construction management is facing complex and difficult problems due to the increasing uncertainties during project implementation. Therefore, the second objective of this study is proposed for the application of EFSIMET to treat two typical problems in construction: forecasting cash-flow and estimate at completion. Through performance’s comparison with previous works, the effectiveness and real world application of EFSIMET are proved. Hence, this model may be use as an intelligent decision support tool to assist the decision-making process to solve the construction management’s difficulties.
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