Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"reputation system"”.
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Adaptive trust and reputation system as a security service in group communications
… a number of vulnerabilities against trust and reputation systems, and proposes a threat model to predict attack behaviors. This work also considers scenarios in which multiple attacking agents actively and collaboratively attack the whole network as well as a specific individual node. The …
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Fine-grained reputation-based routing in wireless ad hoc networks
… selfish or malicious. A mechanism to evaluate reputation for each node is essential for the reliability and security of routing protocol in ad hoc networks. We propose a fine-grained reputation system for wireless ad hoc routing protocols based on constantly monitored and updated first and …
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Reputation and cooperation in social dilemma games
… of cooperation is the maintenance of informal reputation hierarchies. Reputational information contributes to cooperation by providing guidelines about previous group-beneficial or free-rider behaviour in social dilemma interactions. How reputation system emerges, however, remains a puzzle. The …
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Understanding and defending against internet infrastructures supporting cybecrime operations
… fundamental Internet protocols; the Domain Name System (DNS) and the Border Gateway Protocol (BGP). A popular countermeasure against cybercriminal infrastructures are Autonomous Systems (AS) reputation systems. Past research efforts have developed several AS reputation systems that monitor the …
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Preserving Accuracy and Privacy in Participatory Sensing Systems
… validity is by evaluating participant reputation values through a designed reputation system. Therefore, we propose a Reputation System to Evaluate Participants (RSEP) to ensure participant contribution data trustworthiness and provide accurate participant contributions. When a crisis …
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Accountability and Privacy Preservation (AP2) in VANET Communications
… misbehaving vehicle. I propose a Privacy System, in which person's real identity will be kept hidden form VANET group and general public with help of pseudonames. My approach guarantees that vehicle owner's identity can be traced back to the real person in case of a misbehaving vehicle. …
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An integrated framework for ensuring runtime quality in service-oriented systems
… service-oriented vision. The service-oriented systems which underpin modern business processes must be able to react to constantly changing environments and business requirements. The quality of a service-oriented system depends not only on the quality of service (QoS) provided by services, but …
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Systematic Measurement of Centralized Online Reputation Systems
Background: Centralized online reputation systems, which collect users' opinions on products, transactions and events as reputation information then aggregate and publish it, have been widely adopted by Internet companies. These systems can help users build trust, reduce information asymmetry and …
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Robust censorship-resistant communication
… protect and/or design censorship circumvention systems to resist the insider attacks. Tor is one of the most popular censorship circumvention systems; it uses {\it bridges} run by volunteers as proxies to evade censorship. We propose {\it rBridge}--a user reputation system for bridge …
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Quality-consciousness in Large-scale Content Distribution in the Internet
… to peers based on their contributions in the system. The ability to associate reliable reputations with peers in a peer-to-peer network is a useful feature of these networks. Reliable reputations can help establish trust in these networks and hence improve content quality. They can also be …
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Opportunistic Spectrum Utilization by Cognitive Radio Networks: Challenges and Solutions
… solutions including cross-layer approaches, reputation system, optimization and game theoretic approaches to handle (1) degradation in TCP's throughput resulting from packet losses and disruptions in spectrum availability due non-deterministic use of spectrum by the PUs (2) presence of …
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Proactive abuse prevention in clouds
… such as anti-viruses and intrusion detection systems fail to provide adequate protection as they can be bypassed (using polymorphism, stealth etc.), hidden from (as in virtualization-aware rootkits) or altogether turned off (by getting root access). To make matters worse, hackers have invented …
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Unsupervised intrusion detection for wireless sensor networks based on artificial intelligence techniques
… is to design an autonomous intrusion detection system for wireless sensor networks that would be able to detect wide range of attacks, including the previously unseen ones. The existing solutions have limited scope, in a sense they provide protection against already identified attacks, which …
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From satisfaction of consumers to satisfaction with consumers: Reverse rating in the sharing economy
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-08-01