Spoken Document Retrieval Experiments for SpokenDoc at Ryukoku University (RYSDT)

In this paper, we describe spoken document retrieval systems in Ryukoku University, which were participated in NTCIR-9 IR for Spoken Documents (“SpokenDoc”) task. In NTCIR-9 “SpokenDoc” task, there are two subtasks: “Spoken term detection (STD) subtask” and “Spoken document retrieval (SDR) subtask”. We participated in the both subtasks as team RYSDT. In this paper, first, our STD systems are described, and then, our SDR systems are described.