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Presented the trellis structure of uncoded DUSTM system in the situation where its constellations form a group under the matrix multiplication such that the system structure of DUSTM can be considered as a trellis structure which has full transition branches with the cardinality of the constellation as the number of the trellis states. Thus the soft Viterbi decoding algorithm can be performed. It...
Commercial activities carried out through the Internet become more and more popular. And lots of transaction logs are generated, which means we can gain useful information by data mining. Thereby, association rules mining is very valuable in e-commerce. But there are some problems of existing association rules mining systems. The existing traditional approaches can't solve these problems very well...
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