STD and SCR Techniques and Their Evaluations on the NTCIR-10 SpokenDoc-2 Task.
Yuto Furuya, Daiki Nakagomi, Satoshi Natori, Hiromitsu Nishizaki, Yoshihiro Sekiguchi · 2013
This paper describes spoken term detection (STD) and spo-ken contents retrieval (SCR) techniques and their evalua-tions at the NTCIR-10 SpokenDoc-2 task. First of all, we describes our STD technique using a phoneme transition network (PTN) derived from multiple speech recognizers' outputs and its evaluations at the STD and the iSTD (inex-istent STD) tasks. Next, we introduce our SCR technique using Web documents for expanding the target spoken doc-uments. It is evaluated on the two SCR tasks.