how to use CRF++

in recently ,i learned the CRF for information extraction ,studyed its theory and  collected the CRF tools.first of all,i get the information of CRF from wiki websit where have so many CRF resource,including theory ,people who are studying ,offering a lot of valid papers links,

References

• Lafferty, J., McCallum, A., Pereira, F.: Conditional random fields: Probabilistic models for segmenting and labeling sequence data. In: Proc. 18th International Conf. on Machine Learning, Morgan Kaufmann, San Francisco, CA (2001) 282–289
• McCallum, A.: Efficiently inducing features of conditional random fields. In: Proc. 19th Conference on Uncertainty in Artificial Intelligence. (2003)
• Sha, F., Pereira, F.: Shallow parsing with conditional random fields. Technical Report MS-CIS-02-35, University of Pennsylvania (2003)
• Wallach, H.M.: Conditional random fields: An introduction. Technical Report MS-CIS-04-21, University of Pennsylvania (2004)
• Sutton, C., McCallum, A.: An Introduction to Conditional Random Fields for Relational Learning. In "Introduction to Statistical Relational Learning". Edited by Lise Getoor and Ben Taskar. MIT Press. (2006)
• Klinger, R., Tomanek, K.: Classical Probabilistic Models and Conditional Random Fields. Algorithm Engineering Report TR07-2-013, Department of Computer Science, Dortmund University of Technology, December 2007. ISSN 1864-4503. Online PDF

what the most importance thing  is the there  are a good many CRF tools.The listed tools is the most popular tools for using.   

Software

This is a partial list of software that implement CRF related tools.

• MALLET (Java)
• ABNER (Java)
• MinorThird (Java)
• Kevin Murphy's MATLAB CRF code (Matlab)
• Sunita Sarawagi's CRF package (Java)
• HCRF library (including CRF and LDCRF) (C++, Matlab)
• CRFSuite Fast CRF implementation (C++)
• Xcrf for Xml data (Java)
• CRF++ (C++)
• sgd: An LGPL C++ library implementing Stochastic Gradient Descent with application to learning CRF andSupport Vector Machine
• FlexCRFs (including a parallel implementation) (C++)

I choose the CRF++ (C++) for my project.so I take attenttion in how to using this software.

I have been basically understood its usage through several days learning.if you are a beginner ,you can get quick start from its online document .when you using this tool,some note you should attention:

      1.the column of Token must be seperated by space or tab.It imply that the partition word must not include the space or tab.for instance "hello world    NB    1","hello world" is not allowed for including space.

      2.if you want to use the API for your project in MS operating system.you can look the fold:\sdk which tell you how to call the dll .

      3.i found that i can do when using java for my project on ms operating system.so i can but rewrite it, i do not know what is the reason.