Intuitively, this task could be framed as an ad-hoc IR problem, where the spoken document is treated as an information need and each sentence of the document is regarded as a candidate information unit to be retrieved according to its relevance to the information need.
the enhanced query model is termed query-specific mixture model (QMM), and its corresponding training objective function can be expressed as Language modeling is a critical and integral component in any large vocabulary continuous speech recognition (LVCSR) system (Huang et al., 2001;Jurafsky and Martin, 2008;Furui et al., 2012).