
178 Multimedia Ontology: Representation and Applications
the same set of data. The broker agent negotiates with the resource agents
to select an appropriate subset of resource agents in the context of a user’s
request.
(a) Multiagent architecture (b) Mobile-agent-based architecture
FIGURE 9.2: Agent based architectures for distributed multimedia infor-
mation system.
Mobile agents are a class of agents that can move from one network node
to another. They carry their state as they move from one node to another. A
typical architecture for a mobile-agent-based multimedia information system
is shown in figure 9.2(b). A mobile agent launched from the user