研究生: |
王學智 Syue-jhin Wang |
---|---|
論文名稱: |
應用PSO演算法於韋伯分配之不同資料型態下的參數估計 Applying PSO Algorithm to Estimate the Weibull Parameters for Different Types of Data |
指導教授: |
王福琨
Fu-kwun Wang |
口試委員: |
陳欽雨
Chin-yeu Chen 許總欣 Tsung-Shin Hsu |
學位類別: |
碩士 Master |
系所名稱: |
管理學院 - 工業管理系 Department of Industrial Management |
論文出版年: | 2011 |
畢業學年度: | 99 |
語文別: | 中文 |
論文頁數: | 48 |
中文關鍵詞: | PSO演算法 、最大概似估計量 、韋伯分配 、設限資料 、牛頓法 |
外文關鍵詞: | Particle Swarm Optimization, Maximum likelihood estimation, Weibull distribution, Censored data, Newton-Raphson method |
相關次數: | 點閱:321 下載:7 |
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韋伯分配 (Weibull Distribution)應常被應用於存活分析與可靠度分析中具有完全資料或設限資料,本研究主要探討韋伯分配在不同設限資料型態下之參數估計,而所考慮的資料型態包含完全資料 (Complete Data)、型一設限資料 (Type Ⅰ Censored Data)、型二設限資料 (Type Ⅱ Censored Data)、多重設限資料 (Multiple
Censored Data)。
透過文獻資料之蒐集,並利用最大概似法(Maximum Likelihood Estimator)對其參數進行估計,分別透過牛頓法(Newton-Raphson method)及粒子群最佳化演算法(Particle Swarm Optimization)對當中聯立方程式進行求解。為比較兩種演算法估計結果之優劣,以概似函數值與信賴區間進行比較,發現由PSO所求得概似函數值優於牛頓法。
Weibull distribution is usually applied in survival and reliability analysis with complete data or censored data, censored data is investigated the parameter estimation of Weibull distribution for complete, type I censored, type Ⅱ censored and multiply censored data.
We used to solve the maximum likelihood estimation method for the two-parameter weibull distribution. With respect to the likelihood value and the standard deviation of parameters, the results show that the PSO algorithm is better than the Newton-Raphson methods.
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