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理學院
物理學系
學位論文
學位論文
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http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/73905
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search.filters.author.Li, Chien-De
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search.filters.author.李建德
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search.filters.subject.phase transition
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search.filters.subject.artificial neural network
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search.filters.subject.Monte Carlo simulations
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search.filters.subject.Potts model
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search.filters.subject.人工神經網路
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人工神經網路在物理上的應用:二維正方形晶格上Potts model 相變之研究
(
2018
)
李建德
;
Li, Chien-De
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這篇論文主要探討了卷積神經網路(convolutional neural network)在二維正方形晶格上的Potts model之應用。我們使用卷積神經網路對蒙地卡羅演算法模擬出的自旋狀態加以分析。不同於相關文獻中常用的方法,在本次研究中,我們使用低溫有序相中的自旋狀態作為訓練集,並以輸出向量O ⃗之長度R做為主要觀測量。藉由此方法,我們得到了和已知文獻上一致的結果。此方法減少了以人工神經網路研究凝態模型時所耗費的計算資源。使用此方式訓練出的卷積神經網路除了可以偵測臨界溫度T_c外,亦可用來辨識相變的類型為一階或二階。
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