@techreport{oai:ipsj.ixsq.nii.ac.jp:00046497,
 author = {Sejin, Oh and Youngho, Lee and Woontack, Woo and Sejin, Oh and Youngho, Lee and Woontack, Woo},
 issue = {60(2005-UBI-008)},
 month = {Jun},
 note = {With the rapid development of hardware and software virtual reality technologies are applied to various areas such as virtual heritage systems entertainments games educations etc. However most virtual reality systems only offer limited interactions i.e. it simply responds to explicit commands inputted by users. In this paper we propose vr-UCAM2.0 (A Unified Context-aware Application Model for Virtual Environments) as a framework for designing reactive virtual environments. It makes virtual objects show active responses to context in real and virtual environment. It consists of vrSensor detecting any changes in virtual environments vrSCM supporting seamless context sharing between real and virtual environments and vrService showing different responses to contexts. The proposed vr-UCAM2.0 seamlessly shares context between real and virtual environments by exploiting a unified context. Additionally it makes virtual objects react to the context according to its personality. Moreover it ensures adaptation by changing degrees of the object`s personality and abilities through learning. Consequently we expect that the vr-UCAM2.0 can be a framework for designing intelligent interactions between users and virtual environments., With the rapid development of hardware and software,virtual reality technologies are applied to various areas,such as virtual heritage systems,entertainments,games,educations,etc. However,most virtual reality systems only offer limited interactions,i.e.,it simply responds to explicit commands inputted by users. In this paper,we propose vr-UCAM2.0 (A Unified Context-aware Application Model for Virtual Environments) as a framework for designing reactive virtual environments. It makes virtual objects show active responses to context in real and virtual environment. It consists of vrSensor detecting any changes in virtual environments,vrSCM supporting seamless context sharing between real and virtual environments,and vrService showing different responses to contexts. The proposed vr-UCAM2.0 seamlessly shares context between real and virtual environments by exploiting a unified context. Additionally,it makes virtual objects react to the context according to its personality. Moreover,it ensures adaptation by changing degrees of the object`s personality and abilities through learning. Consequently,we expect that the vr-UCAM2.0 can be a framework for designing intelligent interactions between users and virtual environments.},
 title = {Vr-UCAM2.0:A Unified Context-aware Application Model for Virtual Environments},
 year = {2005}
}