Exact(60)
The recommended trust value computed by indirect trust computation module form the basis for new trust relationship.
Considering the computational complexity of trust computation and the worst case where the majority of CHs are infected, the suitable value of β is [0, 0.5].
When the service provider has no personal experience with the requesting entity to compute direct trust, indirect trust computation is used as a way to evaluate and distribute trust[1].
In [20 23], the concept of combined trust computation is presented in which direct trust is computed with direct observations and indirect trust is computed from recommendation.
If each experience is given same weight in trust computation regardless of the time when the interaction happened, the computed trust value can lead to false results.
In this model, we estimate the trust degree between nodes from direct trust computation of direct observation and indirect trust computation by neighbors' recommendations.
Indirect trust computation holds key importance where requesting service has no personal interactions with the entity in question to run a direct trust computation.
Performance interpretation module is responsible for the direct trust computation (Algorithm 2).
Indirect trust computation holds key importance in trust- based access control models.
Bedi et al. [26] proposed a trust-based recommender system using ant colony for trust computation.
Indirect trust computation (Algorithm 1) is carried out by Reputation evaluator module.
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