Sciweavers

Share
IAT
2008
IEEE

Introducing Communication in Dis-POMDPs with Locality of Interaction

12 years 10 hour ago
Introducing Communication in Dis-POMDPs with Locality of Interaction
The Networked Distributed POMDPs (ND-POMDPs) can model multiagent systems in uncertain domains and has begun to scale-up the number of agents. However, prior work in ND-POMDPs has failed to address communication. Without communication, the size of a local policy at each agent within the ND-POMDPs grows exponentially in the time horizon. To overcome this problem, we extend existing algorithms so that agents periodically communicate their observation and action histories with each other. After communication, agents can start from new synchronized belief state. Thus, we can avoid the exponential growth in the size of local policies at agents. Furthermore, we introduce an idea that is similar the Point-based Value Iteration algorithm to approximate the value function with a fixed number of representative points. Our experimental results show that we can obtain much longer policies than existing algorithms as long as the interval between communications is small.
Makoto Tasaki, Yuichi Yabu, Yuki Iwanari, Makoto Y
Added 29 May 2010
Updated 29 May 2010
Type Conference
Year 2008
Where IAT
Authors Makoto Tasaki, Yuichi Yabu, Yuki Iwanari, Makoto Yokoo, Milind Tambe, Janusz Marecki, Pradeep Varakantham
Comments (0)
books