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In secret sharing schemes, there is always a special participant called the dealer who controls the distribution of the secret S. It is so powerful that once the dealer is depraved, the whole system is to be paralyzed. In order to solve this problem, it is necessary to cancel the privilege of the dealer and realize completely fair secret sharing. In this paper, we make use of the excellent additivity...
Hierarchical agglomerative clustering treats given data as a singleton cluster at the outset and then successively merge (or agglomerate) pairs of clusters until all clusters have been merged into a single cluster that contains all data. However, if two data are merged incorrectly in the beginning, errors will be accumulated and amplified by the following iterations. Thus, we will get a worse cluster...
China is a multi-ethnic nation with rich and diverse culture traditions. State-wide standardized textbooks, however, take little into account the local ethnic minority cultures; thus limiting the opportunities of preserving the unique ethnic traditions through education. On the other hand, property of information technology requires information technology teaching to combine knowledge with local culture...
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