An algorithm to compute similarity between danger objects based on ontology for danger-aware systems

摘要

Context awareness is one of the most important aspects in the current ubiquitous computing research field. Danger-aware system is a kind of context awareness system, which detects the dangerous situations and provides services responsive to the dangerous situation. However, there is a shortcoming in the current danger/context awareness systems that the reasoning mechanisms are not flexible. Without enough predefined contexts, the system cannot work well, e.g., if a detected context is similar to a predefined context, but not exactly same as the predefined one, the system cannot recognize it.