“…More recently, Palmer et al (2012) argued that the advances in artificial intelligence and audiovisual signal processing make it possible to automate certain SLT tasks and thus deliver more intensive and efficient therapy out of the clinics, while making better use of the therapists' time. The state-of-the-art in this area includes web-based developments (Ooi, Raja, Sung, Fung, & Koh, 2012), mobile applications (Bunnell & Beidel, 2013) and various types of robots (Choe, Jung, Baird, & Grupen, 2013;Kose, Akalin, & Uluer, 2014), featuring components of voice-based and gesture-based interaction (Hogrefe, Ziegler, Wiesmayer, Weidinger, & Goldenberg, 2013;Sekine & Rose, 2013), avatars in the role of 'virtual therapists' (Abad et al, 2013;Teodoro, Martin, Keshner, Shi, & Rudnicky, 2013), etc. Expert systems have been used in this area, for example, to adapt parameters of the user interfaces, in order to make them more amenable and engaging (Kostoulas et al, 2012).…”