WeiJu
2008-03-16 09:58:30 UTC
§Ú»Ýn¥Îexcel €èŠ¡°µ¥X BP Learning Algorithm ªºpºâ
ÁÙšS¶}©l°µ§ÚŽN¹Jšì²~ÀV€F
·ÐœÐŠU¬°¥ý¶i¡A¬O§_¯àžÑ±Ï§Úªº§xÂZ...
¥H€U¬Oºtºâªkªº€œŠ¡
// compute the error
//compute the error with respect to the next higher layer, k
// weight increment , // weight update
¬O»Ýn¥Î€°»òŒËªºšçŠ¡Œg©O¡H
ÁÙ¬On¥Îšä¥L€èŠ¡¿é€J©O¡H¡I
«D±`·PÁÂ
begin 666 clip_image002.gif
M1TE&.#EAJ0`9`'<`,2'^&E-O9G1W87)E.B!-:6-R;W-***@3V9F:6-E`"'Y
M! $`````+ ,`!0"C`!$`@ ````````+LA(,9QNT/HXIN'8K9E!RHGX5'(EY:
MB5:-15EDNL:=[)TFK-HA6^,E?WL`@***@B4==+]HXPXP[IRQR9RNH/0N5-H]BN
M5(?P+,)AW]9+2YT[3"INW=J,EN/*IYS.0ZU/M+?-E2/T%80G%@@G"'5GR.>V
MY(?!.!2)IJ5H5KGWJ/GHHAF5&/FII\$XB)GDU(2:1YH:=)5*2EG%*7(IV:I6
MBKH:***@V=FH+;-IXF/;2M&P:O-*<;!8MS6<,7'NMJRRKS>VM_0O^#+L+GCN.
E.).N!+B=GLV>*?^NSAY/?W5[;EW4SU5G3[X=^\X5C'./4@$`.P``
`
end
begin 666 clip_image004.gif
M1TE&.#EAQP`;`'<`,2'^&E-O9G1W87)E.B!-:6-R;W-***@3V9F:6-E`"'Y
M! $`````+ ,`!0# `!,`@P````````8%!0H("0@'!PL)"@,#`P4$! L*"@D'
M" <&!@P*"PD(" $"`P$"`P$"`P3_$,A)J[TXZ\V[ST(@CB3YG6BJKFSK7N$`
M!F^-EJ+MF1TM^2H>!***@A! B8`K&'TYV(2Z<%RO&-5M1,%&!$7K:;K+1*`8^C
M9L RK9UJMH. P"8>MW_VX?==8>_==Q9Q<RY ?GF&$SF+-#DO6V9H*9!A208'
M""V)/XV=:FA4CE5"GVJ<IF\X:WJL93>ML!4(`06:I(NGD)N'FZ>*ASM_L:B_
M38K"@18),BR]I;^5S[S'U-4UE,EX3\C#$@->S=:KE8W$T=3C?5^JZNWNDMON
MKO.R"A^B]-KIOM"FDJ+C]M')-PQ8/F!;!"RXQ\V*/&WT\+UC9Z[BLV97INS+
M^(1C&8$2;***@B%(LARU4#A,<@G#\27+D$NR[# @$8G$LE<+.02IL4S! %\
MT\# 7A^6HU[M#-<3#%*E/A$8O;" 08 $ZE#RU!JMW-.'0'MVHW! %0YFZ ;^
`
end
begin 666 clip_image006.gif
M1TE&.#EA< `S`'<`,2'^&E-O9G1W87)E.B!-:6-R;W-***@3V9F:6-E`"'Y
M! $`````+ (`! !J`"P`@ ````````+_A!&GR^UO4DR2A8LKW/,ZS84B*(&'
M9HH+:B'J"YE5RL+MBJ?V2RKRN;OA?*X3RQ,<$I? B!%!B6YH3-3,R<EDE,UN
M!SDI>G188?&,19)A/>[U"9\V:EZ*:\WFEL_T?6S.M*?&Y_6U%***@F.-3V44C(
MR(>7!\38!IF%J'5(^ 1F,U.I6:+G(X-1FB26M";YJ=+Z,+K:F$H;`@N8N/-3
MFWN;.M8K//**"V@\O*N;;(',S.;\+#U-76U]C9VMO<W=[?T-'BX^3EYN?HZ>
MKKX>O3[=[C[9"!]/'+O<ZRF5?V3,BJ8/RJ<WDD29:N+OGB""***@3B:SAHBD$E
MEF3EL4.O!49Y4'J.W DRR*(I37-&O7FH`U+(,JU /7/),5,5>"?'T#LIT),9
M(Z*ZN-3IZF$MB]B(0J1FU%I2'GZ2+47:%)I08':T!1LZ%5A69E6I*LTX,$0!
"`#L`
`
end
begin 666 clip_image008.gif
M1TE&.#EA7 `9`'<`,2'^&E-O9G1W87)E.B!-:6-R;W-***@3V9F:6-E`"'Y
M! $`````+ (`!0!7`!$`@ ````````*6A!&G&[T/HTF(TM>RD_S"[7'BI%SA
MX9TCPG[ENH:IB\),B[UVI]<WN7NI9,$(\>?#.9:)3>^DR8BB4B2P-]&4FEE<
M$HHM8H?/K9F6]*K%U[77%%:UW^$UU9DFIUO'6[\RQ_9EMV=AQ7"***@M<E: &6
I134');=#&<,C>"AF>8F6N5?$"?/X"1I:BCHBRK.:RL;5V.JZ>5$``#L`
`
end
ÁÙšS¶}©l°µ§ÚŽN¹Jšì²~ÀV€F
·ÐœÐŠU¬°¥ý¶i¡A¬O§_¯àžÑ±Ï§Úªº§xÂZ...
¥H€U¬Oºtºâªkªº€œŠ¡
// compute the error
//compute the error with respect to the next higher layer, k
// weight increment , // weight update
¬O»Ýn¥Î€°»òŒËªºšçŠ¡Œg©O¡H
ÁÙ¬On¥Îšä¥L€èŠ¡¿é€J©O¡H¡I
«D±`·PÁÂ
begin 666 clip_image002.gif
M1TE&.#EAJ0`9`'<`,2'^&E-O9G1W87)E.B!-:6-R;W-***@3V9F:6-E`"'Y
M! $`````+ ,`!0"C`!$`@ ````````+LA(,9QNT/HXIN'8K9E!RHGX5'(EY:
MB5:-15EDNL:=[)TFK-HA6^,E?WL`@***@B4==+]HXPXP[IRQR9RNH/0N5-H]BN
M5(?P+,)AW]9+2YT[3"INW=J,EN/*IYS.0ZU/M+?-E2/T%80G%@@G"'5GR.>V
MY(?!.!2)IJ5H5KGWJ/GHHAF5&/FII\$XB)GDU(2:1YH:=)5*2EG%*7(IV:I6
MBKH:***@V=FH+;-IXF/;2M&P:O-*<;!8MS6<,7'NMJRRKS>VM_0O^#+L+GCN.
E.).N!+B=GLV>*?^NSAY/?W5[;EW4SU5G3[X=^\X5C'./4@$`.P``
`
end
begin 666 clip_image004.gif
M1TE&.#EAQP`;`'<`,2'^&E-O9G1W87)E.B!-:6-R;W-***@3V9F:6-E`"'Y
M! $`````+ ,`!0# `!,`@P````````8%!0H("0@'!PL)"@,#`P4$! L*"@D'
M" <&!@P*"PD(" $"`P$"`P$"`P3_$,A)J[TXZ\V[ST(@CB3YG6BJKFSK7N$`
M!F^-EJ+MF1TM^2H>!***@A! B8`K&'TYV(2Z<%RO&-5M1,%&!$7K:;K+1*`8^C
M9L RK9UJMH. P"8>MW_VX?==8>_==Q9Q<RY ?GF&$SF+-#DO6V9H*9!A208'
M""V)/XV=:FA4CE5"GVJ<IF\X:WJL93>ML!4(`06:I(NGD)N'FZ>*ASM_L:B_
M38K"@18),BR]I;^5S[S'U-4UE,EX3\C#$@->S=:KE8W$T=3C?5^JZNWNDMON
MKO.R"A^B]-KIOM"FDJ+C]M')-PQ8/F!;!"RXQ\V*/&WT\+UC9Z[BLV97INS+
M^(1C&8$2;***@B%(LARU4#A,<@G#\27+D$NR[# @$8G$LE<+.02IL4S! %\
MT\# 7A^6HU[M#-<3#%*E/A$8O;" 08 $ZE#RU!JMW-.'0'MVHW! %0YFZ ;^
`
end
begin 666 clip_image006.gif
M1TE&.#EA< `S`'<`,2'^&E-O9G1W87)E.B!-:6-R;W-***@3V9F:6-E`"'Y
M! $`````+ (`! !J`"P`@ ````````+_A!&GR^UO4DR2A8LKW/,ZS84B*(&'
M9HH+:B'J"YE5RL+MBJ?V2RKRN;OA?*X3RQ,<$I? B!%!B6YH3-3,R<EDE,UN
M!SDI>G188?&,19)A/>[U"9\V:EZ*:\WFEL_T?6S.M*?&Y_6U%***@F.-3V44C(
MR(>7!\38!IF%J'5(^ 1F,U.I6:+G(X-1FB26M";YJ=+Z,+K:F$H;`@N8N/-3
MFWN;.M8K//**"V@\O*N;;(',S.;\+#U-76U]C9VMO<W=[?T-'BX^3EYN?HZ>
MKKX>O3[=[C[9"!]/'+O<ZRF5?V3,BJ8/RJ<WDD29:N+OGB""***@3B:SAHBD$E
MEF3EL4.O!49Y4'J.W DRR*(I37-&O7FH`U+(,JU /7/),5,5>"?'T#LIT),9
M(Z*ZN-3IZF$MB]B(0J1FU%I2'GZ2+47:%)I08':T!1LZ%5A69E6I*LTX,$0!
"`#L`
`
end
begin 666 clip_image008.gif
M1TE&.#EA7 `9`'<`,2'^&E-O9G1W87)E.B!-:6-R;W-***@3V9F:6-E`"'Y
M! $`````+ (`!0!7`!$`@ ````````*6A!&G&[T/HTF(TM>RD_S"[7'BI%SA
MX9TCPG[ENH:IB\),B[UVI]<WN7NI9,$(\>?#.9:)3>^DR8BB4B2P-]&4FEE<
M$HHM8H?/K9F6]*K%U[77%%:UW^$UU9DFIUO'6[\RQ_9EMV=AQ7"***@M<E: &6
I134');=#&<,C>"AF>8F6N5?$"?/X"1I:BCHBRK.:RL;5V.JZ>5$``#L`
`
end