Context-aware applications are required to be aware of user context and ambient intelligent to support nonintrusive humancomputer\ninteraction. However, the uncertain real-world environments make it difficult for a system to perceive enough\nenvironmental contexts and achieve user�s goal. Therefore, this study proposes a framework for developing an NFC-enabled\nintelligent agent, which combines the NFC technique with context-acquisition, ontology-knowledgebase, and semantic-adaptation\nmodules to be aware of location, time, device, and activity contexts with respect to personal and social profiles. To cope with the\nuncertain environment, a credit-based incentive scheme is also proposed to encourage social cooperation and thereby enlarge\nthe value of personal perceptions. By developing a complete ontology knowledgebase, the proposed framework can incorporate\nwith social-cooperation schemes to recommend relevant services for supporting reactive action, proactive achievement, and social\ncooperation.The resultant social-advertising system shows that this framework can support a wide-range of different functionalities\nand is indispensable to an NFC-based intelligent agent for social Internet of things.
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