Thanks for your comment.
I have a one more question that modelGraph parameters are three: "naive", "semi-markov", and "segmentCRF".
I performed experiment using CRFAppl and Segment class.
I thought that "naive" is the parameter to run conventional CRF model, "semi-markov and segmentCRF" are Semi-CRF model.
You told to me, make sure that the modelGraph parameter is "naive".
Is the parameter "nave" to run Semi-CRF model?
Thank again for your comment.