clear?all
useMex?=?1;?%?Set?this?to?1?to?use?mex?files?to?speed?things?up

%%?Generate?Synthetic?Data

%?Notes:
%???-?X?is?categorical?each?element?X（ij）?contains?the?value?of?feature?j?for?word?i
%???????a?value?of?‘0‘?means?ignore?the?feature?for?this?training?example
%???-?y?is?cateogircal?each?element?y（i）?contains?the?label?for?word?i
%???????a?value?of?‘0‘?indicates?the?position?between?sentences
[Xy]?=?crfChain_genSynthetic;

nWords?=?size（X1）;
nStates?=?max（y）;
nFeatures?=?max（X）;

%%?Initialize?parameters?and?data?structures

[wv_startv_endv]?=?crfChain_initWeights（nFeaturesnStates‘randn‘）;
featureStart?=?cumsum（[1?nFeatures（1:end）]）;?%?data?structure?which?relates?high-level?‘features‘?to?elements?of?w
sentences?=?crfChain_initSentences（y）;
nSentences?=?size（sentences1）;

wv?=?[w（:）;v_start（:）;v_end（:）;v（:）];

%%?Set?up?training/testing?indices
trainNdx?=?1:floor（nSentences/2）;
testNdx?=?floor（nSentences/2）+1:nSentences;

%%?Example?of?making?potentials?and?doing?inference?with?first?sentence

s?=?1;
if?useMex
????[nodePotedgePot]?=?crfChain_makePotentialsC（XwvnFeaturesfeatureStartsentencessnStates）;
????[nodeBeledgeBellogZ]?=?crfChain_inferC（nodePotedgePot）;
else
????[nodePotedgePot]=crfChain_makePotentials（Xwv_startv_endvnFeaturesfeatureStartsentencess）;
????[nodeBeledgeBellogZ]?=?crfChain_infer（nodePotedgePot）;
end

%%?Compute?Errors?with?random?parameters

fprintf（‘Errors?based?on?most?likely?sequence?with?random?parameters:\n‘）;

trainErr?=?crfChain_error（wv_startv_endvXynStatesnFeaturesfeatureStartsentences（trainNdx:）‘decode‘useMex）
testErr?=?crfChain_error（wv_startv_endvXynStatesnFeaturesfeatureStartsentences（testNdx:）‘decode‘useMex）

fprintf（‘Errors?based?on?max?marginals?with?random?parameters:\n‘）;

trainErr?=?crfChain_error（wv_startv_endvXynStatesnFeaturesfeatureStartsentences（trainNdx:）‘infer‘useMex）
testErr?=?crfChain_error（wv_startv_endvXynStatesnFeaturesfeatureStartsentences（testNdx:）‘infer‘useMex）


%%?Training

%?Compute?objective?function?over?training?data
if?useMex
????maxSentenceLength?=?1+max（sentences（:2）-sentences（:1））;
????crfChain_lossC2（wvXynStatesnFeaturesfeatureStartsentencesmaxSentenceLength）;
else
????crfChain_loss（wvXynStatesnFeaturesfeatureStartsentences）;
end

%?Optimize?parameters
fprintf（‘Training...\n‘）;
if?useMex
????[wv]?=?minFunc（@crfChain_lossC2[w（:）;v_start;v_end;v（:）][]XynStatesnFeaturesfeatureStartsentences（trainNdx:）maxSentenceLength）;
else
????[wv]?=?minFunc（@crfChain_losswv[]XynStatesnFeaturesfeatureStartsentences（trainNdx:））;
end

%?Split?up?weights
[wv_startv_endv]?=?crfChain_splitWeights（wvfeatureStartnStates）;

%%?Decode/Infer/Sample?based?on?first?test?example

s?=?testNdx（1）;
fprintf（‘True?Labels?for?first?test?sentence:\n‘）;
y（sentences（s1）:sentences（s2））‘

fprintf（‘Most?likely?sequen

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2009-04-13?20:34??crfChain\
?????目錄???????????0??2009-04-13?20:36??crfChain\crfChain\
?????文件?????????621??2008-06-22?10:42??crfChain\crfChain\crfChain_decode.m
?????文件?????????915??2009-04-13?20:28??crfChain\crfChain\crfChain_error.m
?????文件????????1090??2009-04-11?20:49??crfChain\crfChain\crfChain_genSynthetic.m
?????文件????????1272??2008-06-22?10:41??crfChain\crfChain\crfChain_infer.m
?????文件?????????355??2008-06-22?19:29??crfChain\crfChain\crfChain_initSentences.m
?????文件?????????461??2008-06-22?19:29??crfChain\crfChain\crfChain_initWeights.m
?????文件????????2636??2008-10-30?20:25??crfChain\crfChain\crfChain_loss.m
?????文件????????1046??2008-09-13?15:06??crfChain\crfChain\crfChain_makePotentials.m
?????文件?????????772??2008-07-02?16:02??crfChain\crfChain\crfChain_sample.m
?????文件?????????411??2008-06-22?19:29??crfChain\crfChain\crfChain_splitWeights.m
?????目錄???????????0??2009-04-13?20:46??crfChain\crfChain\mex\
?????文件????????4230??2008-10-30?20:25??crfChain\crfChain\mex\crfChain_inferC.c
?????文件???????12681??2009-04-13?20:46??crfChain\crfChain\mex\crfChain_inferC.mexglx
?????文件????????9660??2009-01-07?17:35??crfChain\crfChain\mex\crfChain_inferC.mexmac
?????文件????????8704??2008-10-30?20:25??crfChain\crfChain\mex\crfChain_inferC.mexw32
?????文件???????12423??2008-10-30?20:25??crfChain\crfChain\mex\crfChain_lossC2.c
?????文件???????12707??2009-04-13?20:46??crfChain\crfChain\mex\crfChain_lossC2.mexglx
?????文件???????13820??2009-01-07?17:35??crfChain\crfChain\mex\crfChain_lossC2.mexmac
?????文件???????12288??2008-10-30?20:25??crfChain\crfChain\mex\crfChain_lossC2.mexw32
?????文件????????3238??2008-10-30?20:25??crfChain\crfChain\mex\crfChain_makePotentialsC.c
?????文件????????8470??2009-04-13?20:46??crfChain\crfChain\mex\crfChain_makePotentialsC.mexglx
?????文件????????9528??2009-01-07?17:35??crfChain\crfChain\mex\crfChain_makePotentialsC.mexmac
?????文件????????7680??2008-10-30?20:25??crfChain\crfChain\mex\crfChain_makePotentialsC.mexw32
?????文件????????4411??2009-04-13?20:36??crfChain\example_crfChain.m
?????目錄???????????0??2009-04-13?20:34??crfChain\KPM\
?????文件????????3965??2008-08-31?07:11??crfChain\KPM\repmatC.c
?????文件????????7680??2008-08-31?07:11??crfChain\KPM\repmatC.dll
?????文件???????20682??2008-08-31?07:11??crfChain\KPM\repmatC.mexglx
?????文件???????10000??2008-08-31?07:11??crfChain\KPM\repmatC.mexmac
............此處省略13個文件信息