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The information measure and detection for vortex in flow field is a challenging issue. This paper presents a new information measure for flow field called rotation entropy to highlight vortex regions in flow field. Rotation entropy is the statistical quantity of vectors in sample region around a point, and indicates the rotation information of the region. The properties of rotation entropy are discussed...
This paper proposes an automatic scheme to extract Chinese abbreviations and their corresponding definitions from large-scale anchor texts. This method is motivated by the observation that the more frequently two anchor texts point to the same web page, the more related they are. Since abbreviation-definition pairs are highly related, they can be extracted from these related words. Our method involves...
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