Kagal, L., Korolev, V., Chen, H., Joshi, A., and Finin, T. "Centaurus: A Fram ework for Intelligent Services in a Mobile Environment." 21st International Conference on Distributed Computing Systems Workshops (ICDCSW '01), April 16 - 19, 2001, Mesa, Arizona.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....to that service class. The Bluetooth Service Discovery server does not specify a means to access the service. The server only replies whether a service is available on the queried platform. Kagal et. al describes a higher level service discovery and management system in the centaurus project [51]. The service discovery in Centaurus is carried based on XML description of the services and is independent of the underlying communication medium. Moreover, the architecture is also secure and clients are authenticated using a Kerberos type [60] authentication. The architecture is based on a ....

Lalana Kagal, Vlad Korolev, Harry Chen, Anupam Joshi, and Timothy Finin. Centaurus: A framework for intelligent services in a mobile environment. In International Workshop on Smart Appliances and Wearable Computing (IWSAWC). Phoenix. Arizona, 2001.

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L. Kagal, V. Korolev, H. Chen, A. Joshi, and T. Finin. Centaurus : A framework for intelligent services in a mobile environment. In Proceedings of the International Workshop on Smart Appliances and Wearable Computing, 2001.

....CoBrA is an agent based architecture for supporting context aware computing in intelligent spaces. Intelligent spaces are physical spaces (e.g. living rooms, vehicles, corporate o#ces and meeting rooms) that are populated with intelligent systems that provide pervasive computing services to users [14]. By context, we mean an understanding of a location, its environmental attributes (e.g. noise level, light intensity, temperature and motion) and the people, devices, objects and software agents it contains. Central to our architecture is the presence of an intelligent context broker (or broker ....

....it provides an ontology model which can help the broker to reason about contexts and detect knowledge inconsistency. 3.1 Enabling Knowledge Sharing Knowledge sharing in pervasive context aware systems requires all agents to share a common ontology . To meet this requirement, previous systems [25, 3, 14, 19] often define ontologies based on ad hoc representation schemes (e.g. defining a set objects or data structures to represent shared knowledge) The key problem of this approach lays in system interoperability. In a pervasive computing environment, because devices, services and agents are likely ....

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L. Kagal, V. Korolev, H. Chen, A. Joshi, and T. Finin. Centaurus : A framework for intelligent services in a mobile environment. In Proceedings of the International Workshop on Smart Appliances and Wearable Computing (IWSAWC), 2001.

....CoBrA is an agent based architecture for supporting contextaware computing in intelligent spaces. Intelligent spaces are physical spaces (e.g. living rooms, vehicles, corporate offices and meeting rooms) populated with intelligent systems that provide pervasive computing services to users [Kagal et al. 2001] . By context, we mean an understanding of a location, its environmental attributes (e.g. noise level, light intensity, temperature and motion) and the people, devices, objects and software agents it contains. Figure 1: An intelligent context broker acquires context information from devices, ....

....in F OWL by late June 2003. 7 Related Work Our work is closely related to other pervasive and contextaware computing research such as Intelligent Room [Coen, 1998] Context Toolkit [Salber et al. 1999] and Cooltown [Kindberg and Barton, 2001] One.World [Grimm et al. 2000] and Centaurus [Kagal et al. 2001] . In comparison to http: umbc.edu hchen4 fowl the previous systems, our novel design of the context broker attempts to address challenging issues such as developing explicit ontology representations of contexts, supporting context reasoning and maintenance through logic inferences and ....

[Article contains additional citation context not shown here]

Lalana Kagal, Vlad Korolev, Harry Chen, Anupam Joshi, and Timothy Finin. Centaurus : A framework for intelligent services in a mobile environment. In Proceedings of the International Workshop on Smart Appliances and Wearable Computing (IWSAWC), 2001.

....CoBrA is an agent based architecture for supporting context aware computing in intelligent spaces. Intelligent spaces are physical spaces (e.g. living rooms, vehicles, corporate o#ces and meeting rooms) that are populated with intelligent systems that provide pervasive computing services to users [11]. Central to our architecture is the presence of an intelligent context broker (or broker for short) that maintains and manages a shared contextual model on the behalf of a community of agents. These agents can be applications hosted by mobile devices that a user carries or wears (e.g. cell ....

....for example, placing readers next to the meeting room s door and underneath the tables in the meeting room. 7. RELATED WORK Our work is closely related to other pervasive and contextaware computing research such as Intelligent Room, Context Toolkit, Cooltown, One.World [8] and Centaurus [11]. In comparison to the previous systems, our design of the Context Broker Architecture takes a knowledge representation approach to build ontologies of contexts and attempts to use Semantic Web language (i.e. OWL) as the content language in agent communication. An explicit representation of ....

[Article contains additional citation context not shown here]

L. Kagal, V. Korolev, H. Chen, A. Joshi, and T. Finin. Centaurus : A framework for intelligent services in a mobile environment. In Proceedings of the International Workshop on Smart Appliances and Wearable Computing (IWSAWC), 2001.

....infrastructure to provide more relevant information and services to the user. Our research program is aimed at realizing ubiquitous computing systems that are composed of autonomous, intelligent, articulate and social components. As part of this research project, we have developed Centaurus [7], which realizes the Smart Office scenario, where intelligent services are accessible to mobile users via hand held devices connected over short range wireless links. We encountered several problems with security for Centaurus. Firstly, it is not possible to have a central authority for a single ....

Lalana Kagal, Vlad Korolev, Harry Chen, Anupam Joshi, and Tim Finin. Centaurus: A framework for intelligent services in a mobile environment. In Proceedings of International Workshop on Smart Appliances and Wearable Computing (IWSAWC), in the The 21st International Conference on Distributed Computing Systems (ICDCS-21) April 16-19, 2001.

....Internet Application Control [20] In the remainder of this section we will present the design and modeling issues of our approach and touch on ongoing work. Complete details on the communication protocols, implementation, exper imental results and comparisons to other systems are available in [25, 26]. 2.1 Design A SmartRoom is equipped with a Centaurus Communication Manager, which continuously broadcasts, through some medium, a client application. A person with a portable device who enters the room for the first time is given the option to install the software. Once the application is ....

Lalana Kagal, Vlad Korolev, Harry Chen, Anupam Joshi, and Tim Finin. Centaurus: A framework for intelligent services in a mobile environment. In Proceedings of International Workshop on Smart Appliances and Wearable Computing (IWSAWC), in the The 21st International Conference on Distributed Computing Systems (ICDCS-21) April 16-19, 2001, 2001.

....for Internet Application Control [20] In the remainder of this section we will present the design and modeling issues of our approach and touch on ongoing work. Complete details on the communication protocols, implementation, experimental results and comparisons to other systems are available in [25, 26]. 2.1 Design A SmartRoom is equipped with a Centaurus Communication Manager, which continuously broadcasts, through some medium, a client application. A person with a portable device who enters the room for the rst time is given the option to install the software. Once the application is ....

Lalana Kagal, Vlad Korolev, Harry Chen, Anupam Joshi, and Tim Finin. Centaurus: A framework for intelligent services in a mobile environment. In Proceedings of International Workshop on Smart Appliances and Wearable Computing (IWSAWC) , The 21st International Conference on Distributed Computing Systems (ICDCS-21) April 16-19, 2001. 23

....more efficient interaction between the system and its users, be they humans or software agents. 5.1 Interoperability Standard As an interoperability layer, DAML allows the content of ITTALKS to be easily shared with other applications and agents. For example, a Centaurus room manager agent [26] could watch ITTALKS for events happening in a room for which it is responsible in order to enable better scheduling. DAML also acts as an interoperability standard allowing other sites to make their talks available for inclusion in ITTALKS by publishing announcements marked up in our ontology. ....

Lalana Kagal, Vlad Korolev, Harry Chen, Anupam Joshi, and Timothy Finin. Centaurus: A framework for intelligent services in a mobile environment. In Proceedings of the International Workshop on Smart Appliances and Wearable Computing (IWSAWC), April 2001.

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Kagal, L., Korolev, V., Chen, H., Joshi, A., and Finin, T. "Centaurus: A Fram ework for Intelligent Services in a Mobile Environment." 21st International Conference on Distributed Computing Systems Workshops (ICDCSW '01), April 16 - 19, 2001, Mesa, Arizona.

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KAGAL, L., KOROLEV, V., CHEN, H., JOSHI, A., AND FININ, T. Centaurus: A Framework for Intelligent Services in a Mobile Environment. In International Workshop on Smart Appliances and Wearable Computing (IWSAWC), at the 21st International Conference on Distributed Computing Systems (ICDCS) (Apr. 2001).

No context found.

Kagal, L., Korolev, V., Chen, H., Joshi, A., and Finin, T. "Centaurus: A Framework for Intelligent Services in a Mobile Environment." 21st International Conference on Distributed Computing Systems Workshops (ICDCSW '01), April 16 - 19, 2001, Mesa, Arizona.

No context found.

Kagal, L., Korolev, V., Chen, H., Joshi, A., and Finin, T. "Centaurus: A Fram ework for Intelligent Services in a Mobile Environment." 21st International Conference on Distributed Computing Systems Workshops (ICDCSW '01), April 16 - 19, 2001, Mesa, Arizona.

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