“…Some sample applications are tourist and travel information (Glass et al, 1995), weather forecast over the phone (Zue et al, 2000), speech controlled banking systems (Melin et al, 2001), conference help (Bohus et al, 2007), etc. They have also been used for education and training, particularly in improving phonetic and linguistic skills: assistance and guidance to F18 aircraft personnel during maintenance tasks (Bohus and Rudnicky, 2002), dialog applications for computer-aided speech therapy with different language pathologies (Vaquero et al, 2006). Finally, one of the most demanding applications for fully natural and understandable dialogs, are embodied conversational agents and companions (Brahnam, 2009;Bailly et al, 2010).…”