We consider a wireless control architecture where multiple sensors independently and randomly access a shared wireless medium to communicate with corresponding actuators, and we develop a decentralized channel access mechanism. Each sensor iteratively adapts the rate at which it accesses the medium in order to mitigate the effect of packet collisions from simultaneously transmitting sensors on ...

Large-scale applications, in the form of workflows, may require the coordinated usage of resources spreading across multiple administrative domains. Scalable solutions need a decentralized approach to coordinate the execution of such workflows. At runtime, adjustments to the workflow execution plan may be required to meet Quality of Service objectives. In this paper, we provide a decentralized ...

We consider project scheduling problems on a decentralized decisional framework, where a project is partitioned into different sub-projects each one managed by a local decision maker. A coordination mechanism has to be considered to resolve shared resource allocation conflicts between different sub-projects. We propose a multi agent system model to represent the decentralized decisional problem...

Currently used P2P file-sharing systems such as Gnutella suffer from a freeloading problem due to absence of enforcible decentralized mechanism to motivate peers to provide services to others. Freeloading leads to a de facto centralized system that is susceptible to DoS attacks and provides poor service to its participants. In this paper, we propose a decentralized mechanism that avoids on-line...

The importance of diversity in reasoning and learning to successfully address complex problems is examined. We discuss an approach by which a multiagent framework with decentralized control mechanisms provides diverse perspectives and hypotheses addressing a class of complex problems. We introduce the SNARE multiagent system. SNARE performs tasks to gain situational awareness of situations of i...

Peer-to-Peer (P2P) systems are self-organized and decentralized. However, the mechanism of a peer randomly joining and leaving a P2P network causes topology mismatching between the P2P logical overlay network and the physical underlying network. The topology mismatching problem brings great stress on the Internet infrastructure and seriously limits the performance gain from various search or ro...

The purpose of this study is to examine how the collaboration structure among inventors in an R and D organization affects its capability to create impactful innovations. Specifically, this study is focused on examining whether a certain type of network mechanism found in collaboration among inventors contributes more to enhancing the future impacts of collaboration outputs, which is represente...

Classification is a kind of basic semantics that people often use to manage versatile contents in daily life. Resource Space Model (RSM) is a semantic model for sharing and managing various resources using normalized classification semantics. Gossip-based peer-to-peer (P2P) techniques are reliable and scalable protocols for information dissemination. Incorporating RSM with gossip-based techniqu...

This paper presents a decentralized cooperative economic scheduling mechanism for a supply chain environment. For this purpose, we design autonomous agents that minimize the production or transportation and outsourcing costs incurred by the external execution of a task. The decentralized cooperative scheduling approach comprises two parts: the individual optimization of an agent’s local schedul...