We are interested in retrieving information from speech data using phonetic search. We show improvement by expanding the query phonetically using a joint maximum entropy N-gram model. The value of this approach is demonstrated on Broadcast News data from NIST 2006 Spoken Term Detection evaluation.
Bibliographic reference. Mamou, Jonathan / Ramabhadran, Bhuvana (2008): "Phonetic query expansion for spoken document retrieval", In INTERSPEECH-2008, 2106-2109.