In this paper, we look at the results of using spoken language interactive virtual characters in information kiosks. Users interact with synthetic spokespeople using spoken natural language dialogue. The virtual characters respond with spoken language, body and facial gesture, and graphical images on the screen. We present findings from studies of three different information kiosk applications. As we developed successive kiosks, we applied lessons learned from previous kiosks to improve system performance. For each setting, we briefly describe the application, the participants, and the results, with specific focus on how we increased user participation and improved informational throughput. We tie the results together in a lessons learned section. Copyright 2004 ACM.
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