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As semantic information is often missing in text representation, this paper proposes semantic graph structure to represent text and optimize graph structure by semantic similarity matrix. Then calculate the similarity of semantic graph structure by using the maximum common sub-graph of graph theory. Finally, K-means algorithm will be applied to expand Chinese text clustering to improve text clustering...
A new scheme called certificate revocation Trie-tree (CRTT) is proposed to solve the certificate revocation problem in public key infrastructure (PKI). The scheme has maximal time complexity of O (level) in query and updating and when the data volume is extreme huge, it shows more superiority than previous solutions. The scheme has more guide significance for engineering implementation. Further, a...
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