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We propose a new approach to describe facial expressions based on axiomatic fuzzy set (AFS), which can convert the features to semantic knowledge. The method has two advantages: the first one is that the semantic concepts are gained by data distribution. It means that the concepts can be directly obtained from data set, and the priori model is not required. The second one is the semantic concepts...
Currently there are a number of ontological tools available in handling heterogeneous data presented in the computing domain. However, there are no surveys available in evaluating the performance of these tools. In this paper, we provide an in-depth discussion on the state-of-the-art ontological tools and their application to the real world domain. First, we describe the operation of these tools,...
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