function?[?w?count?data]?=?batchBP（?x?z?yh?w?t?param?）
%BATCHBP?此處顯示有關此函數(shù)的摘要
%???批量BP算法
Nh?=?param.Nh;
Nx?=?param.Nx;
Nd?=?param.Nd;
Ny?=?param.Ny;
eta?=?param.eta;
theta?=?param.theta;

flag?=?0;
count?=?0;
res?=?[0?0?0];
resid?=?1;
m?=?0;
data?=?zeros（300001）;
q?=?1;
while（flag?==?0）
????Wh?=?w{1};
????Wy?=?w{2};
????sj?=?zeros（NxNy）;
????sh?=?zeros（NxNh）;
????deltaj?=?zeros（NhNy）;
????deltah?=?zeros（NdNh）;
????for?k?=?1:Nx
????????for?j?=?1:Ny
????????????sj（kj）?=?z（kj）*（1-z（kj））*（t（kj）-z（kj））;
????????????for?h?=?1:Nh
????????????????deltaj（hj）?=?eta*sj（kj）*yh（kh）?+?deltaj（hj）;
????????????end
????????end
????????for?h?=?1:Nh
????????????sh（kh）?=?（1-yh（kh）^2）*（Wy（h:）*sj（k:）‘）;
????????????for?i?=?1:Nd
????????????????deltah（ih）?=?eta*sh（kh）*x（ki）?+?deltah（ih）;
????????????end
????????end
????end
????Wy?=?Wy?+?deltaj;
????Wh?=?Wh?+?deltah;
????w{1}?=?Wh;
????w{2}?=?Wy;
????[?J?z?yh?]?=?forward（?x?w?t?param?）;
????JJ?=?sum（abs（J））;
????data（q）?=?JJ;
????q?=?q?+?1;
????[?out?]?=?test（?w?x?t?）;
????res（resid）?=?JJ;
????resid?=?resid?+?1;
????if?resid?==?4
????????resid?=?1;
????end
????if?sum（abs（J））?????????flag?=?1;???????
????end
????count?=?count?+?1;
????disp（[‘batch迭代第‘?num2str（count）?‘次，正確率為：‘?num2str（out*100）?‘%?loss為：‘?num2str（JJ）]）;

end
end

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-09-12?09:41??三層神經(jīng)網(wǎng)絡模型\
?????文件????????1498??2017-11-26?17:47??三層神經(jīng)網(wǎng)絡模型\batchBP.m
?????文件?????????546??2017-11-25?19:47??三層神經(jīng)網(wǎng)絡模型\forward.m
?????文件????????1391??2017-11-26?18:05??三層神經(jīng)網(wǎng)絡模型\run_BP.m
?????文件?????????212??2017-11-26?16:56??三層神經(jīng)網(wǎng)絡模型\sigmoid.m
?????文件????????1581??2017-11-26?17:48??三層神經(jīng)網(wǎng)絡模型\singleBP.m
?????文件?????????239??2017-11-26?12:01??三層神經(jīng)網(wǎng)絡模型\tan_h.m
?????文件?????????291??2017-11-26?13:36??三層神經(jīng)網(wǎng)絡模型\test.m
?????文件?????2822454??2017-11-26?17:55??三層神經(jīng)網(wǎng)絡模型\圖.bmp