Huan Cui

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Top-N frequent item sets mining gets the interesting results by appointing the quantity of the most frequent item sets. It is an important data mining application. This article proposed a Top-N frequent item sets mining algorithm based on greedy method. The obtained Top-N item sets are stored in a static doubly linked list. Join two frequent item sets which(More)
Neoarchean metasedimentary rocks from the Batatal Formation, Brazil were studied using petrographic, elemental and stable isotopic techniques to provide a better understanding of coupling between the atmosphere-ocean system and biogeo-chemical cycles prior to the Great Oxidation Event. Multiple sulfur isotope data from both shale and carbonate lithofacies(More)
As the typical CDMA application, the spread spectrum PRN codes in GPS are C/A code applied to standard positioning service and P code applied to precise positioning service presently. P code has a higher tolerance to jamming and spoofing compared with the C/A code, C/A code has short length and low data rate, and is vulnerable to interference and spoofing,(More)
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