Pierre maret and Ken sasaki, University of Tokyo

• Pierre MARET

• and Ken SASAKI, University of Tokyo

Autonomous players

• Autonomous players

• Intensive communication task

• No centralization

• Open environment: new players / players leaving without global impact

• Peripherics

• Personal assistants
• Sensors (wearable and fixed)

Each player is an agent

• Each player is an agent

• Compliance with pervasive systems

• Autonomy
• Intensive communication

• Agents have two components (Agent Oriented Abstraction):

• Knowledge: concept classes, instance, actions (that can be further specialized). = Ontology.
• A decision mechanism (associated to utility function): for instance Evaluate a message, Send an Inform, …

Agents are provided with a layer for acting within knowledge communities

• Agents are provided with a layer for acting within knowledge communities

• Knowledge community:

• a leader + a topic
• dynamic, no concrete existence, extends the topic
• Related actions: create, join, inform, request, leave..

• Exchanges are based on contents

• Example

• A: creates a community on concept “Metro station name”
• B: decides to join the community and informs about “Ginza”, instance of “Metro station name”

In our approach

• In our approach

• User-oriented peripherics are associated to Personal Agents

• Sensor are associated to Context Agents

• Communications occurs within Virtual Knowledge Communities

Sensor: foot pressure

• Sensor: foot pressure

• Context agent produces knowledge: user’s activity level

• Environmental signal delivery into a metro station

• Context agent delivers knowledge: station name

• Personal assistant of traveler : Personal agent

• knows the desired station and a evaluation rule when to wake-up the traveler (activity is low and desired station is reached)
• is interested in “Activity level” and “Metro station names”

Wake up the user if necessary

• Wake up the user if necessary

Application design is made easier

• Application design is made easier

• Agents are made independently

• New applications appears with new contents

• System is open-ended and compliant with pervasive systems