19 Nov 1999
Sphinx Speech Group, CMU-SCS (rkm@cs.cmu.edu)
The Backpointer Table (contd.)
·Some additional information available from BP table:
·All candidate words recognized during recognition
·Word segmentations
·Word segment acoustic scores
·“Lattice density”: No. of competing word hypotheses at any instant
·Useful for postprocessing steps:
·Lattice rescoring
·N-best list generation
·Confidence measures