1. Abdul-Kader, S.A., Woods, J.: Survey on Chatbot design techniques in speech conversation systems. Int. J. Adv. Comput. Sci. Appl. 6(7), 72–80 (2015)
2. Agostaro, F., Augello, A., Pilato, G., Vassallo, G., Gaglio, S.: A conversational agent based on a conceptual interpretation of a data driven semantic space. In: Advances in Artificial Intelligence. LNCS, vol. 3673, pp. 381–392 (2005)
3. Alexander, S., Sarrafzadeh, A., Hill, S.: Easy with eve: a functional affective tutoring system. In: Rebolledo-Mendez, G., Martinez-Miron, E. (eds.) Workshop on Motivational and Affective Issues in ITS held at the 8th International Conference on ITS, pp. 38–45 (2006)
4. Alencar, M., Netto, J.M.: In Proceedings - Frontiers in Education Conference (2011)
5. Amilon, M.: Chatbot with common-sense database. Bachelor’s thesis in Computer Science, KTH Royal Institute of Technology, Sweden (2015)