[Kaldi-users] confusion about transition ID

[dophist <do...@gm...>]

Hi, Dan,

Say I have a silence model with 3 states, each has 2 arcs(one self-loop and
one to the next state)
The transition id associated with these arcs seems to be:
tid=0 : reserve for eps
tid=1 : state1 -> state1
tid=2 : state1 -> state2
tid=3 : state2 -> state2
tid=4 : state2 -> state3
...
and so on

Now what I'm confused is that the recognition gives best tid path as such:
some_key  2 1 1 1 4 3 ....

if tid 2 represents the "out-going" arc from state1 to state 2, how comes
that tid 1 follows tid 2 (which representing it is still "looping" in
state1) ?  it seems that tid 2 is actual the arc going INTO state 1, but
this is inconsistent with the transition-id description in "HMMTopology"
section in Kaldi homepage.

regards,
Jiayu