基于bp神經(jīng)網(wǎng)絡(luò)的函數(shù)擬合算法研究（function fitting based on bp neural network）

1、基于BP神經(jīng)網(wǎng)絡(luò)的函數(shù)擬合算法研究[摘要]人工神經(jīng)網(wǎng)絡(luò)（ArtificialNeuralwk，ANN）是智能領(lǐng)域的研究熱點(diǎn)，目前已經(jīng)成功地應(yīng)用到信號(hào)處理、模式識(shí)別、機(jī)器控制、專家系統(tǒng)等領(lǐng)域中。在神經(jīng)網(wǎng)絡(luò)技術(shù)中，BP神經(jīng)網(wǎng)絡(luò)因具有結(jié)構(gòu)、學(xué)習(xí)算法簡(jiǎn)單等特點(diǎn)，近年來得到廣泛的關(guān)注，相關(guān)技術(shù)已經(jīng)在預(yù)測(cè)、分類等領(lǐng)域中實(shí)現(xiàn)產(chǎn)業(yè)化。本文針對(duì)經(jīng)典的函數(shù)擬合問題，以BP神經(jīng)網(wǎng)絡(luò)為工具，力求分析BP神經(jīng)網(wǎng)絡(luò)隱含層神經(jīng)元數(shù)目對(duì)網(wǎng)絡(luò)性能以及函數(shù)擬合效果的影響。

2、通過Matlab的仿真實(shí)驗(yàn)結(jié)果表明，BP神經(jīng)網(wǎng)絡(luò)作為高效的計(jì)算智能工具，是實(shí)現(xiàn)復(fù)雜函數(shù)擬合的有效工具。[關(guān)鍵字]人工神經(jīng)網(wǎng)絡(luò)；BP神經(jīng)網(wǎng)絡(luò)；函數(shù)擬合目錄目錄1引言..............................................................11.1研究意義....................................................11.2研究現(xiàn)狀.........

3、............................................11.2.1函數(shù)擬合的工具及方法...................................21.2.2神經(jīng)網(wǎng)絡(luò)的發(fā)展現(xiàn)狀.....................................31.3本文研究?jī)?nèi)容................................................31.4本文的組織結(jié)構(gòu)....

4、..........................................42人工神經(jīng)網(wǎng)絡(luò)簡(jiǎn)介..................................................52.1人工神經(jīng)網(wǎng)絡(luò)特性.............................................52.2人工神經(jīng)網(wǎng)絡(luò)的特點(diǎn)..........................................62.3人工

5、神經(jīng)網(wǎng)絡(luò)的基本特性和結(jié)構(gòu).................................62.4人工神經(jīng)網(wǎng)絡(luò)的主要學(xué)習(xí)算法..................................82.5BP神經(jīng)網(wǎng)絡(luò)結(jié)構(gòu)..............................................92.6BP神經(jīng)網(wǎng)絡(luò)訓(xùn)練方法.........................................113基于BP神經(jīng)網(wǎng)絡(luò)

6、的函數(shù)擬合算法設(shè)計(jì)與實(shí)現(xiàn).........................143.1面向函數(shù)擬合的BP網(wǎng)絡(luò)結(jié)構(gòu)...................................143.1.1函數(shù)問題的提出........................................143.1.2建立BP神經(jīng)網(wǎng)絡(luò).......................................153.1.3網(wǎng)絡(luò)仿真...........

7、...................................153.1.4網(wǎng)絡(luò)測(cè)試..............................................163.2實(shí)驗(yàn)及其結(jié)果分析...........................................183.2.1設(shè)置實(shí)驗(yàn)參數(shù)..........................................183.2.2實(shí)驗(yàn)結(jié)果分析....

8、......................................194結(jié)論.............................................................245致謝語...........................................................25[參考文獻(xiàn)]...........................................