A nature-inspired decentralized trust model to reduce information unreliability in complex disaster relief operations
One of the foremost challenges confronting society today is the vulnerability of critical physical infrastructures in urban areas to extreme events. The major challenge in these scenarios despite the availability of the means of communication (e.g. ad-hoc networks, hand held devices) is the lack of trust among the first responders due to their having no prior experience of interactions amongst themselves. Also the spreading of inaccurate or misleading information can have disastrous consequences in the chaotic and hazardous environments which are prevalent in large-scale disasters. Therefore it is imperative that the responders possess the ability to assess and evaluate the trustworthiness as well as the information propagated by fellow responders in order to facilitate collaboration. This paper presents a decentralized trust model to enhance reliable information dissemination in large-scale disasters. The model proposed includes a distributed recommendation scheme, incorporated into an existing membership maintenance service for ad-hoc networks. In addition it has a nature-inspired activation spreading mechanism that allows trust-based information propagation. Search and Rescue exercises involving civil engineers and firefighters were conducted at the Illinois Fire Service Institute (IFSI) to test the software. The upshot of the simulation was immediate and robust establishment of trust and high resilience to the spread of the unreliable information.
numerical analysis, summarizing information
1. comparison of the ant-based techniques with the new model2. Search and Rescue exercises involving civil engineers and firefighters were conducted at the Illinois Fire Service Institute (IFSI) to test the software.
Detection of unreliability,Robustness,Reducing information overload
1. software simulation2. a model was implemented as part of the Mobile Ad-Hoc Space for Collaboration (MASC) application which runs on hand held devices enabled with short-range wireless communication
simulation
1. evaluate the performance of the trust system as well as effectiveness,efficiency and robustness of the proposed approach2. support a real rescue exercise
interesting model to enhance reliable information disseminationlot of simulation were conducted in order to test the performance, effectiveness, efficiency and robustness of the trust systemonly one rope rescue exercise was carried out in normal conditions therefore at this moment it is difficult to provide an exact measure of the scalability of the system
A reputation-based scheme, incorporated in a group membership protocol, is being used for to establish trust among first responders. A nature-inspired activation mechanism is also proposed for trust-based information dissemination on top of the trust model. Experimental results indicate fast and robust establishment of trust and high resilience to the spread of unreliable information.
A decentralized trust model to enhance reliable information dissemination in large-scale disasters; trust model based on a communication model, distributed recommendation scheme to allow the assessment of trustworthiness in diverse groups of first responders
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