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The Introduction-Based Routing Protocol (IBRP) leverages implicit trust relationships and per-node discretion to create incentives to avoid associating with misbehaving network participants. Nodes exercise discretion through their policies for offering or accepting introductions. We empirically demonstrate the robustness of IBRP against different attack scenarios. We also use empirical game-theoretic techniques to assess the strategic stability of compliant policies, and find preliminary evidence that IBRP encourages the adoption of policies that limit damage from misbehaving nodes. We argue that IBRP scales to Internet-sized networks, and can be deployed as an overlay on the current Internet, requiring no modifications to applications, operating systems or core network services, thus minimizing cost of adoption.

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The Everything is Alive (EiA) agent system architecture is modular and scalable. It uses the E2 platform, a derivative of the Eclipse core platform, to dynamically add or remove plugin capabilities that have XML or WSDL interfaces. This paper describes two capabilities that can be modularly added to EiA agents. The capabilities described include a robot command capability that customizes an agent to operate as a robot controller and a menu-based natural language interface (MBNLI) capability that provides a human-level interface for commanding a robot.