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The recent emergence of location-based social networking services is revolutionizing Web-based social networking allowing users to share real-life experiences via geo-tagged user-generated multimedia content. One of the key challenges of the Web-based social networks as an information sharing and exchanging channel is how to manage healthy relationships among community users and ensure the quality...
In P2P networks, peers generally interact with unknown or unfamiliar peers without trusted third parties that can manage the behaviors of peers or control the malicious peers. They can give harm to correct peers by providing inauthentic resources for the benefit of themselves in resource sharing. Under this situation, peers can refer the reputation that reflects peer's past behaviors to download the...
DHT-based peer-to-peer networks represent a particular environment with specific security problems. Some types of malicious activity in this kind of networks can cause the same problems as Byzantine failure in distributed computer systems. In this work we propose to integrate solutions for Byzantine Agreement (BA) used in distributed computing environment and reputation mechanisms designed for P2P...
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