A reliability management-based uncertainty elimination context awareness system and a working method thereof. The system comprises a context information acquisition module, a context information processing module, a knowledge base module, a context response module, a context information application module, a context information retrieval/subscription module, a context information correction module, and a user feedback module. The context processing module comprises a multi-algorithm incompleteness elimination unit, an algorithm result inconsistency elimination unit, a credibility management unit, a reliability management unit, an information source inconsistency elimination unit, a context information fusion and reasoning unit, and a self-adaptive management unit. By means of the present invention, more reliable context information can be obtained, and the accuracy, reliability and self-adaptability of the context awareness system are significantly improved.
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