Incorporating alignments into Conditional Random Fields for grapheme to phoneme conversion

Conditional Random Fields (CRFs) are a state-of-the-art approach to natural language processing tasks like grapheme-tophoneme (g2p) conversion which is used to produce pronunciations or pronunciation variants for almost all ASR pronunciation lexica. One drawback of CRFs is that for training, an alignment is needed between graphemes and phonemes, usu

• Type: Journal
• Year: 2011
• Where: ICASSP
• Authors: Patrick Lehnen, Stefan Hahn, Andreas Guta, Hermann Ney
• Keywords: ASR Pronunciation Lexica, Conditional Random Fields, ICASSP 2011, Pronunciation Variants, Signal Processing