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http://dx.doi.org/10.5391/JKIIS.2005.15.7.834

A mixed-initiative conversational agent for ubiquitous home environments  

Song In-Jee (Department of Computer Science Yonsei University)
Hong Jin-Hyuk (Department of Computer Science Yonsei University)
Cho Sung-Bae (Department of Computer Science Yonsei University)
Publication Information
Journal of the Korean Institute of Intelligent Systems / v.15, no.7, 2005 , pp. 834-839 More about this Journal
Abstract
When a great variety of services become available to user through the broadband convergence network in the ubiquitous home environment, an intelligent agent is required to deal with the complexity of services and perceive intension of a user. Different from the old-fashioned command-based user interface for selecting services, conversation enables flexible and rich interactions between human and agents, but diverse expressions of the user's background and context make conversation hard to implement by using either user-initiative or system-initiative methods. To deal with the ambiguity of diverse expressions between user and agents, we have to apply hierarchial bayesian networks for the mixed initiative conversation. Missing information from user's query is analyzed by hierarchial bayesian networks to inference the user's intension so that can be collected through the agent's query. We have implemented this approach in ubiquitous home environment by implementing simulation program.
Keywords
인공집사;계층적 베이지안 네트워크;상호주도 방식;유비쿼터스 가정환경;
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1 M. A. Walker and S. Whittaker, 'Mixed initiative in dialogue: An investigation into discourse,' Proc. the 28th Annual Meeting of the Association for Computational Linguistics, 1990
2 P. Maes, 'Agents that reduce work and information overload,' Communications of ACM, vol. 37, no. 7, pp. 31, 1994
3 P. Debaty et al., 'Integrating the physical world with the web to enhance context-enhanced services,' HP Technical Report, 2003
4 E. Horvitz, 'Principles of mixed-initiative user interfaces,' Proc. ACM SIGCHI Conf. Human Factors in Computing Systems, ACM press, New York, pp. 159-166, 1999
5 B. Schneiderman, 'Direct manipulation: A step beyond programming languages,' IEEE Trans. Computers, vol. 16, no. 8, August 1988
6 C. Sammut, 'Managing context in a conversational agent,' Electronic Trans. Artificial Intelligence, vol. 5, pp. 189-202, 2001
7 B. D. Carolis et al., 'Agent-based home simulation and control,' ISMIS 2005, Lecutre Note in Artificial Intelligence, vol. 3488, pp. 404-412, 2005
8 J.-H. Hong and S.-B. Cho, 'A two-stage Bayesian network for effective development of conversational agent,' Lecture Notes in Computer Science, vol. 2690, pp. 1-9, 2003
9 J. Allen, D. Byron, M. Dzikovska, G. Ferguson, L. Galescu and A. Stent, 'Towards conversational human-computer interaction,' AI Magazine, 2001
10 E. Horvitz, 'Uncertainty, action, and interaction: In pursuit of mixed-initiative computing,' IEEE Intelligent Systems, vol. 14, no. 5, pp. 17-20, 1999
11 M. Budzikowska et al., 'A conversational interface for online shopping,' Human Language Technology Conf., 2001
12 M. Weiser, 'The Computer for the 21st Century,' Scientific American, September 1991
13 H. Meng, et al., 'The use of belief networks for mixed-initiative dialog modeling,' IEEE Trans. Speech and Audio Processing, vol. 11, no. 6, pp. 757-773, 2003   DOI   ScienceOn
14 J. Allen, 'Mixed initiative interaction,' IEEE Intelligent Systems, vol. 15, no. 4, pp. 14-23, 1999