Analysis bySynthesis ofanInformation Presentation Method of Embodied AgentBasedontheTimeLagEffects of Utterance toCommunicative Actions

Thelageffects ofutterance tocommunicative motions inhuman-robot andinhuman-CGcharacter greeting interaction havebeenclarified. Inthispaper,information presentation timing byanagent basedonthetimelageffects of utterance tocommunicative action isanalyzed bysynthesis for applying toa human-agent interaction support. First, the analysis ofahumaninformation presentation action clarifies theaverage pauseandaverage timedelay ofutterance. Then, theanalysis bysynthesis isperformed byusing anagentofCG character andconfirms thatthelagsofutterance incertain information presentation timing bringcommunication effects, i.e. themoderate lagisfamiliar andthelonger lagispolite. Itis alsoclarified thatitisunnatural tostart motions andutterance simultaneously inhuman-agent interaction. Theseresults demonstrate theimportance oftiming inhuman-to-agent em- bodied interaction andthemethodtoperform aninformation presentation effectively.