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Tuong Le, Bay Vo, Frans Coenen; An efficient algorithm for mining erasable itemsets using the difference of NC-Sets; International Conference on Systems, Man, and Cybernetics, pp. 2270 – 2274 (Conference).


This paper proposes an improved version of the MERIT algorithm, deMERIT+, for mining all "erasable item sets". We first establish an algorithm MERIT+, a revised version of MERIT, which is then used as the foundation for deMERIT+. The proposed algorithm uses: a weight index, a hash table and the "difference" of Node Code Sets (dNC-Sets) to improve the mining time. A theorem is derived first to show that dNC-Sets can be used for mining erasable item sets. The experimental results show that deMERIT+ is more effective than MERIT+ in terms of the runtime.