8th Annual Conference of the International Speech Communication Association

Antwerp, Belgium
August 27-31, 2007

Towards Online Speech Summarization

Gabriel Murray, Steve Renals

University of Edinburgh, UK

The majority of speech summarization research has focused on extracting the most informative dialogue acts from recorded, archived data. However, a potential use case for speech summarization in the meetings domain is to facilitate a meeting in progress by providing the participants - whether they are attending in-person or remotely - with an indication of the most important parts of the discussion so far. This requires being able to determine whether a dialogue act is extract-worthy before the global meeting context is available. This paper introduces a novel method for weighting dialogue acts using only very limited local context, and shows that high summary precision is possible even when information about the meeting as a whole is lacking. A new evaluation framework consisting of weighted precision, recall and f-score is detailed, and the novel online summarization method is shown to significantly increase recall and f-score compared with a method using no contextual information.

Full Paper

Bibliographic reference.  Murray, Gabriel / Renals, Steve (2007): "Towards online speech summarization", In INTERSPEECH-2007, 2785-2788.