The Ritel system aims to provide open-domain question answering to casual users by means of a telephone dialogue. This implies some unique challenges, such as very fast overall performance and large-vocabulary speech recognition. Speech QA is an error-prone process, but errors or problems that occur may be resolved with help of user feedback, as part of a natural dialogue. This paper reports on a pilot study conducted with the latest version of Ritel, which includes search term confirmation and improved follow-up question handling, as well as various improvements on the other system components. We collected a small dialogue corpus with the new system, which we use to evaluate and discuss it.
|Title of host publication||Interspeech 2007|
|Place of Publication||Antwerp|
|Publisher||International Speech Communication Association (ISCA)|
|Number of pages||4|
|Publication status||Published - 1 Sep 2007|
|Event||8th Annual Conference of the International Speech Communication Association, INTERSPEECH 2007 - Antwerp, Belgium|
Duration: 27 Aug 2007 → 31 Aug 2007
Conference number: 8
|Publisher||International Speech Communication Association|
|Conference||8th Annual Conference of the International Speech Communication Association, INTERSPEECH 2007|
|Period||27/08/07 → 31/08/07|
- HMI-HF: Human Factors
- HMI-SLT: Speech and Language Technology
- EC Grant Agreement nr.: FP6/506909
van Schooten, B. W., Rosset, S., Galibert, O., Max, A., op den Akker, H. J. A., & Illouz, G. (2007). Handling speech input in the Ritel QA dialogue system. In Interspeech 2007 (pp. 126-129). Antwerp: International Speech Communication Association (ISCA).