Overview of the NTCIR-11 SpokenQuery&Doc Task

This paper presents an overview of the Spoken Query and Spoken Document retrieval (SpokenQuery&Doc) task at the NTCIR-11 Workshop. This task included spoken query driven spoken content retrieval (SQ-SCR) as the main sub-task. With a spoken query driven spoken term detection task (SQSTD) as an additional sub-task. The paper describes details of each sub-task, the data used, the creation of the speech recognition systems used to create the transcripts, the design of the retrieval test collections, the metrics used to evaluate the sub-tasks and a summary of the results of submissions by the task participants.