Automated summarization systems which enable user to quickly digest the important information conveyed by either a single or a cluster of documents are indispensible for managing the rapidly growing amount of textual information and multimedia content (Mani and Maybury, 1999).
due to the maturity of text summarization, the research paradigm has been extended to speech summarization over the years (Furui et al., 2004;McKeown et al., 2005).