Towards the Evaluation of Voice-Activated Question Answering Systems: Spontaneous Questions for QAST 2009

This is a preliminary report of the work carried out in order to introduce \spontaneous" questions into QAST at CLEF 2009. QAST (Question Answering in Speech Transcripts) is a track of the CLEF cam- paign. The aim of this report is to show how dicult can be to generate \spontaneous" questions and the importance to take into account the real information needs of users for the evaluation of question answering systems.