Spontaneous avatar behavior for human territoriality

Claudio Pedica*, Hannes Högni Vilhjálmsson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)


This article presents a new approach for generating believable social behavior in avatars. The focus is on human territorial behaviors during social interactions, such as during conversations and gatherings. Driven by theories on human territoriality, we define a reactive framework that generates avatar group dynamics during social interaction. We model the territorial dynamics of social interactions as a set of social norms that constrain the avatar's reactive motion by running a set of behaviors that blend together. The resulting social group behavior appears relatively robust, but, perhaps more importantly, it starts to bring a new sense of relevance and continuity to virtual bodies that often get left behind when social situations are simulated. We carried out an evaluation of the technology and the result confirms the validity of our approach.

Original languageEnglish
Pages (from-to)575-593
Number of pages19
JournalApplied Artificial Intelligence
Issue number6
Publication statusPublished - Jul 2010

Bibliographical note

Funding Information:
We are grateful to Dr. Adam Kendon for discussions and sending us Scheflen’s unobtainable book. Also, big thanks go to the CADIA team and our collaborators at CCP Games. This work is supported by the Humanoid Agents in Social Game Environments Grant of Excellence from The Icelandic Centre for Research.


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