公开(公告)号：DE3685435D1

公开(公告)日：1992-06-25

申请号：DE3685435

申请日：1986-03-27

Applicant: IBM

Inventor： BAHL LALIT RAI ,  COHEN PAUL SHELDON ,  MERCER ROBERT LEROY

IPC: G10L15/08 ,  G10L15/14 ,  G10L15/18 ,  G10L5/06

Abstract: In the speech recognition system each word model phonetic graph is separated into and right hooks influenced by context and internal portions not influenced by context. Each internal portion between two confluent nodes is identified as a confluent link. Each confluent link is represented as a basic subgraph, and each different basic subgraph is stored once for the whole vocabulary. Each hook pair which can form a boundary between two words is combined into a boudary subgraph. Each different boundary subgraph is stored once for the whole vocabulary. During a recognition process for each current word to be matched against speech input, the boundary subgraph corresponding to the right hook of the last recognized word is fetched in combination with the left hook of the current word.