[Crf-users] Help-Why can not my test data work?

[Xiaowen P. <dor...@ya...>]

Hi Dear,=0A    I used the CRF code to generate the parameters successfully,=
 but when I read them in and apply to a new test data I got exceptions. I h=
ave 2 questions:=0A    1.How to prepare the parameter of the method: CRF.ap=
ply(DataSequence dataSeq). As for the DataSequence, there are two fields, x=
 and y. But in the test data, there should only be x logically. So,how to p=
repare this dataSeq (I have implemented the interface DataSequence).=0A  2.=
Why doesn't this kind of code work?=0A =0Apublic static void main(String[] =
args) throws Exception {  =0A  CRFAppl crf =3D new CRFAppl();=0A...........=
..=0A     crf.train();=0A     crf.test();=0A}=0A =0Apublic void train() thr=
ows Exception {=0A     allocModel();=0A     double featureWts[] =3D crfMode=
l.train(trainDataIter);=0A     crfModel.write(dataPath + "/crfOutput.txt");=
=0A     featureGen.write(dataPath + "/featureOutput.txt");=0A}=0A =0Apublic=
 void test() throws Exception {=0A  allocModel();=0A  featureGen.read(dataP=
ath + "/featureOutput.txt");=0A  crfModel.read(dataPath + "/crfOutput.txt")=
;=0A  crfModel.apply(testRecord);=0A  crfModel.write(dataPath + "/testOutpu=
t.txt");=0A}=0A =0Avoid  allocModel() throws Exception {=0A     featureGen =
=3D new FeatureGenImpl("naive", 8, true);=0A     featureGen.train(trainData=
Iter);=0A     crfModel=3Dnew CRF(8,featureGen, "numLabels 8");=0A}=0A =0AI =
got such exceptions:=0AException in thread "main" java.lang.NumberFormatExc=
eption: For input string: "Main,"=0A at java.lang.NumberFormatException.for=
InputString(Unknown Source)=0A at java.lang.Integer.parseInt(Unknown Source=
)=0A at java.lang.Integer.parseInt(Unknown Source)=0A at iitb.Model.WordsIn=
Train.read(WordsInTrain.java:134)=0A at iitb.Model.FeatureGenImpl.read(Feat=
ureGenImpl.java:363)=0A at app.CRFAppl.test(CRFAppl.java:164)=0A at app.CRF=
Appl.main(CRFAppl.java:108)=0A =0AI tracked in but only find the key uses s=
pace(" ") to seperate tokens but the trained data does not. Why does it hap=
pen? or I have some misunderstandings?=0AAre these read mothods nessessary,=
 if I test it immediately after the train() method?=0A =0AThanks & Regards,=
=0A =0ADoris Pan=0A=0A=0A=0A=D1=C5=BB=A2=D3=CA=CF=E4=A3=AC=D2=D4=B0=B2=C8=
=AB=D6=F8=B3=C6=A3=AC=CA=C7=D6=B5=B5=C3=D0=C5=C0=B5=B5=C4=D3=CA=CF=E4=D7=A8=
=BC=D2=A3=A1=0A=0A=0A      ________________________________________________=
___________ =0A=D1=C5=BB=A2=C3=E2=B7=D1=D3=CA=CF=E4=A3=AC=C8=AB=C7=F2=B5=DA=
=D2=BB=D3=CA=CF=E4=C6=B7=C5=C6=A3=A1 =0Ahttp://mail.yahoo.com.cn/