split file's sentences to token
can count token
can examine vacabulary
create new object 'optimizer'
pause
implement most of E-step
create utils.scala
can calculate xi and gamma
replace Array with ListBf
implement most of updateInitProb, updateTranseProb
implement most of updataEmitProb
pause
Merge pull request #2 from s10018/mai-om

add randdir
do refactoring
change data's type
successfully compiled
implement dumping process
Merge branch 'master' into yk-twww
bug fix
commentout main