A Fuzzy Action Selection Method for Virtual Agent Navigation in Unknown Virtual Environments

• Main Authors: Jaafar, J., McKenzie, E.
• Format: Citation Index Journal
• Published: World Academic Press, World Academic Union 2008
• Subjects: QA75 Electronic computers. Computer science
• Online Access: http://eprints.utp.edu.my/1868/1/jusVol02No2paper06.pdf; http://www.worldacademicunion.com/journal/jus/; http://eprints.utp.edu.my/1868/
• Institution: Universiti Teknologi Petronas

This paper presents an action selection method using fuzzy logic. The objective is to solve behaviour conflict in behaviour-based architectures for virtual agent navigation in unknown virtual environments. Two main problems have been identified: how to decide which behaviour should be activated at each instant; and how to combine the results from different behaviours into one action. The method uses fuzzy alpha-levels to compute behaviour weight for each behaviour and the final action is selected using the Huwicz criterion. The results clearly demonstrate the mapping of inputs to output with a near-optimum path in every navigation task.