BackPropAlgo

8/12/2019 BackPropAlgo

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functionBackPropAlgo(Input, Output)%STEP 1 : Normaliz t! Input%"!cking #!t!r t! Input$ n$ to & normaliz or notif(ma'(Input(:)) 1 ma'(Input(:))*+1)%N to normalizNormInput - Input . ma'(Input(:))/l$NormInput - Input/n%"!cking 0!t!r t! Output$ n$ to & normaliz or notif(ma'(Output(:)) 1 ma'(Output(:))*+1)%N to normalizNormOutput - Output . ma'(Output(:))/l$NormOutput - Output/n%A$$igning t! num&r of !in nuron$ in !in larm - 2/%3in t! $iz of Input an Output 4ctor$5l,&6 - $iz(Input)/5n,a6 - $iz(Output)/%Initializ t! #ig!t matric$ #it! ranom #ig!t$4 - ran(l,m)/ % 0ig!t matri' from Input to 7in0 - ran(m,n)/ % 0ig!t matri' from 7in to Output%Stting count to zro, to kno# t! num&r of itration$count - 8/


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%"alling function for training t! nural nt#ork5rror4alu lta4 lta06 - trainNuralNt(NormInput,NormOutput,4,0)/%"!cking if rror 9alu i$ gratr t!an 81 If $, # n to train t!

%nt#ork again ;$r can ci t! t!r$!ol 9alu#!ilrror4alu * 88


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Error?at-$um(Error>at).count/figur/%$tting 9alu for plotting grap!

-51:count6/%Plotting grap!plot(, Error>at)/n3unction to train t! nt#ork%"rat B : Anoop4S @ k$!mi B

%"rat On : 1C+8D+281%F$cription : 3unction to train t! nt#orkfunction5rror4alu lta4 lta06 - trainNuralNt(Input, Output, 4, 0,lta4, lta0)%3unction for calculation ($tp$ G + 1H)%To train t! Nural Nt#ork%"alculating t! Output of Input ar%No computation !r%Output of Input ar i$ $am a$ t! Input of Input arOutputofInputar - Input/%"alculating Input of t! 7in ar%7r # n to multipl t! Output of t! Input ar #it! t! +%$naptic #ig!t T!at #ig!t i$ in t! matri' 4Inputof7inar - 4 J OutputofInputar/%"alculat t! $iz of Input to 7in ar5m n6 - $iz(Inputof7inar)/


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%No#, # !a9 to calculat t! Output of t! 7in ar%3or t!at, # n to u$ Sigmoial 3unctionOutputof7inar - 1.(1='p(+Inputof7inar))/%"alculating Input to Output ar%7r # n to multipl t! Output of t! 7in ar #it! t! +%$naptic #ig!t T!at #ig!t i$ in t! matri' 0InputofOutputar - 0JOutputof7inar/%"lar 9ara&l$clar m n/

%"alculat t! $iz of Input of Output ar5m n6 - $iz(InputofOutputar)/%No#, # !a9 to calculat t! Output of t! Output ar%3or t!at, # n to u$ Sigmoial 3unctionOutputofOutputar - 1.(1='p(+InputofOutputar))/%No# # n to calculat t! Error u$ing ?oot >an SKuar mt!oiffrnc - Output + OutputofOutputar/$Kuar - iffrncJiffrnc/rror4alu - $Krt($um($Kuar(:)))/%"alculat t! matri' #it! r$pct to t! $ir output%"lar t! 9aria&l m an n

clar m n5n a6 - $iz(Output)/fori - 1 : nforL - 1 : a


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(i,L) -(Output(i,L)+OutputofOutputar(i,L))JOutputofOutputar(i,L)J(1+OutputofOutputar(i,L))/nn%No#, calculat t! M matri'M - Outputof7inar J / %STEP 11%"!cking num&r of argumnt$ 0 ar u$ing function o9rloaing%On t! fir$t itration, # ont !a9 lta 4 an lta 0%So # !a9 to initializ #it! zro T! $iz of lta 4 an lta 0 #ill%& $am a$ t!at of 4 an 0 matri' r$pcti9l (nargin + no of argumnt$)ifnargin -- Glta0-zro$($iz(0))/lta4-zro$($iz(4))/n%Initializing tta #it! 8H an alp!a #it! 1tta-8H/alp!a-1/%"alculating lta 0lta0- alp!aJlta0 = ttaJM/%STEP 12%STEP 1%"alculating rror matri'rror - 0J/%"alculating J

clar m n5m n6 - $iz(rror)/fori - 1 : mforL - 1 :n


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$tar(i,L)- rror(i,L)JOutputof7inar(i,L)J(1+Outputof7inar(i,L))/nn%No# fin matri', (Input J tran$po$ of $tar) - Input J $tar/%STEP 1G%"alculating lta 4lta4-alp!aJlta4=ttaJ/n

I found some mistakes:Line 117 contains HTML codeLine 193 is lacking matrix indizes:OutputofOutputLa!er " 1#$1%exp$&InputofOutputLa!er$i'()))*OutputofOutputLa!er$i'() " 1#$1%exp$&InputofOutputLa!er$i'()))*

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BackPropAlgo