define CRF++ template file

Question

This is my issue, but it doesn\'t say HOW to define the template file correctly.

My training file looks like this:

上   B-NR
海   L-NR
浦   B-NR
东   L-NR
开         


        

Answer 1

CRF++ is extremely easy to use. The instructions on the website explains it clearly.

http://crfpp.googlecode.com/svn/trunk/doc/index.html

Suppose we extract feature for the line 东 L-NR

Unigram

U02:%x[0,0] #means column 0 of the current line

U03:%x[1,0] #means column 0 of the next line

So the underlying feature is "column0=开"

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