Paper: Automatic Acquisition Of Names Using Speak And Spell Mode In Spoken Dialogue Systems

ACL ID N03-1005
Title Automatic Acquisition Of Names Using Speak And Spell Mode In Spoken Dialogue Systems
Venue Human Language Technologies
Session Main Conference
Year 2003
Authors

This paper describes a novel multi-stage recog- nition procedure for deducing the spelling and pronunciation of an open set of names. The overall goal is the automatic acquisition of un- known words in a human computer conver- sational system. The names are spoken and spelled in a single utterance, achieving a con- cise and natural dialogue flow. The first recog- nition pass extracts letter hypotheses from the spelled part of the waveform and maps them to phonemic hypotheses via a hierarchical sub- lexical model capable of generating grapheme- phoneme mappings. A second recognition pass determines the name by combining information from the spoken and spelled part of the wave- form, augmented with language model con- straints. The procedure is integrated into a spo- ken dialogue system wher...