Hidden Markov Model

Functions
mat	bcjr (mat x, imat next_state, mat next_state_pt, vec alpha_0, vec beta_end)
ivec	viterbi (mat x, imat next_state, mat next_state_pt, vec alpha_0, vec beta_end)
ivec	logviterbi (mat logx, imat next_state, mat next_state_logpt, vec logalpha_0, vec logbeta_end)
ivec	viterbi_side (mat x, imat next_state, mat next_state_pt, vec alpha_0, ivec sideinfo_pos, mat sideinfo)
mat	bcjr_side (mat x, imat next_state, mat next_state_pt, vec alpha_0, ivec sideinfo_pos, mat sideinfo)

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Detailed Description

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Function Documentation

mat bcjr	(	mat	x,
		imat	next_state,
		mat	next_state_pt,
		vec	alpha_0,
		vec	beta_end
	)

Definition at line 34 of file hmmalgo.c.

References DUMM_NODE, imat_height(), imat_width(), mat_col_div_by(), mat_cols_sum(), mat_delete(), mat_new_zeros(), mat_width(), vec_copy(), vec_delete(), and vec_normalize().

mat bcjr_side	(	mat	x,
		imat	next_state,
		mat	next_state_pt,
		vec	alpha_0,
		ivec	sideinfo_pos,
		mat	sideinfo
	)

Definition at line 405 of file hmmalgo.c.

References DUMM_NODE, imat_height(), imat_width(), ivec_length(), mat_col_div_by(), mat_cols_sum(), mat_delete(), mat_new_ones(), mat_new_zeros(), mat_width(), vec_copy(), vec_delete(), vec_normalize(), and vec_set().

ivec logviterbi	(	mat	logx,
		imat	next_state,
		mat	next_state_logpt,
		vec	logalpha_0,
		vec	logbeta_end
	)

Definition at line 211 of file hmmalgo.c.

References DUMM_NODE, imat_delete(), imat_height(), imat_new_set(), imat_width(), ivec_new(), mat_width(), vec_copy(), vec_delete(), vec_new(), and vec_set().

Referenced by it_viterbi_decode_symbolic().

ivec viterbi	(	mat	x,
		imat	next_state,
		mat	next_state_pt,
		vec	alpha_0,
		vec	beta_end
	)

Definition at line 121 of file hmmalgo.c.

References DUMM_NODE, imat_delete(), imat_height(), imat_new_set(), imat_width(), IT_FUNCTION, ivec_new(), mat_width(), vec_apply_function(), vec_copy(), vec_delete(), vec_new(), and vec_set().

ivec viterbi_side	(	mat	x,
		imat	next_state,
		mat	next_state_pt,
		vec	alpha_0,
		ivec	sideinfo_pos,
		mat	sideinfo
	)

Definition at line 304 of file hmmalgo.c.

References DUMM_NODE, imat_delete(), imat_height(), imat_new_set(), imat_width(), IT_FUNCTION, ivec_length(), ivec_new(), mat_width(), vec_apply_function(), vec_copy(), vec_delete(), vec_new(), and vec_set().