new file:   data/conv2json.py
new file:   data/prob_emit.json
new file:   data/prob_prev.json
new file:   data/prob_start.json
new file:   data/prob_trans.json
new file:   gieba/hmm.go
new file:   gieba/hmm_test.go
new file:   gieba/tree.go
new file:   gieba/tree_test.go