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Text-based information from human sources contains not just content, but also clues to where the information originated from as well as how strongly the writer believes in that information. That is, the actual content of HUMINT may be from direct observation by the writer or derived through inference by the writer, or the writer may be passing on information which has come from another source. Along...
In open and dynamic multiagent systems (MASs), agents often need to rely on resources or services provided by other agents to accomplish their goals. During this process, agents are exposed to the risk of being exploited by others. These risks, if not mitigated, can cause serious breakdowns in the operation of MASs and threaten their long-term wellbeing. To protect agents from the uncertainty in the...
Evaluating and quantifying trust stimulates collaboration in mobile ad hoc networks (MANETs). Many existing reputation systems sharply divide the trust value into right or wrong, thus ignoring another core dimension of trust: uncertainty. As uncertainty deeply impacts a node's anticipation of others' behavior and decisions during interaction, we include uncertainty in the reputation system. Specifically,...
Because the P2P networkpsilas trust mechanism receives frequently cheat and attack from the malicious nodes, this paper identified four vulnerabilities that are detrimental to trust management, and presented a vague set-based anti-attacked trust model. This model used degree of membership to measure trust degree of uncertainty information, employed the time sensitive coefficient and the penalty coefficient...
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