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In the age of the Internet, the elderly population may find it desirable to use online services. Unfortunately, many elderly users are not technically savvy and are vulnerable to malicious online service providers. Computational trust management systems may be a viable way to protect them, but the presence of collusion that corrupts the sources of information based on which many existing trust models...
Cloud computing is an emerging computing paradigm which allows sharing of massive, heterogeneous, elastic resources among users. Despite of all the hype surrounding the cloud, users are still reluctant to adopt cloud computing because public cloud services process users' data on machines that users do not own hence there is a fear of leakage of users' commercially sensitive data. Due to these reasons,...
To addresses the problem of job failures in grid, which might be due to interaction between unknown entities, a reputation based multi agent system is proposed in this paper. The system is based on cooperative model of society in which agents share their experiences about the resource providers through feedback ratings. The uncertainty present in the feedback ratings is handled through Fuzzy Inference...
For a highly computational resource sharing grid environment, reliable transactions between entities is a major requirement. This is possible when not only do the users of the grid have an appropriate mechanism to select resource providers but the grid users must also pass through proper access control mechanisms placed by the resource providers Traditional Identity based access control methods are...
In service-oriented computing, selection of an appropriate web service is a challenging problem. The more services are available, the more difficult is the service selection. Trust and reputation mechanisms have been used to filter good services from bad ones. Trust and reputation system of web services can often be modeled as a multi-agent system where agents are used to manage and reason about trust...
When a buying agent carries user’s requirements to look for a selling agent for negotiation, there may be some sellers to meet user’s requirement, but the buyer must choose a seller who can not only meet user’s requirements, but also make the buyer’s negotiation outcome gain maximal utility before negotiation. This paper solves problem of choosing seller before negotiation in order to improve accuracy...
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