局部最小值問題為類神經網路研究中之重點議題。本研究將傳統倒傳遞類神經網 路、多項式神經網路以及所提出之方法分別應用於多筆不同類型之訊號學習上;由第 四章的實驗結果得知,傳統倒傳遞類神經網路與多項式神經網路兩者之結果皆存在落 入局部極小值的問題,而需以多次嘗試錯誤的方式尋找相對較佳之結果,儘管如此,
亦無法驗證是否已得到該系統之最佳解;相較於前述兩種神經網路,本研究所提出之 機制不僅在實際訊號應用上可獲得較佳之表現外,更可明確檢視多項式神經網路於現 存架構中是否已落入局部最小值。因此,本研究提出之機制相信可大大幫助類神經網 路跳脫局部最小值,進而達到網路最佳學習之目的,使得類神經網路於日後之各類實 際應用時更能提升其應用之準確性。
本論文之未來研究方向包含以下兩部分;第一,利用本研究所發展之學習機制與 多項式神經網路間相通之數學關係,回過頭來找出多項式神經網路之最佳化模型。第 二,應用於各類實際訊號以驗證此方法之實用性與一般性,提供從事類神經網路研究 人員一重要之參考指標。
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