C. Castiello, Corrado Mencar, M. Lucarelli, Franz Rothlauf
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引用次数: 2
摘要
DC *是一种从预分类数据中产生可解释模糊信息颗粒的方法。它基于LVQ1在数据压缩中的后续应用和基于A *的临时过程,以满足某些可解释性约束的模糊信息颗粒的最小数量来表示数据。虽然在处理一些问题时是有效的,但包含在DC *中的A∗过程可能需要很长的计算时间,因为A∗算法在最坏情况下具有指数级的时间复杂度。在这篇论文中,我们通过提出一个由遗传算法(GA)产生的接近最优解来解决驱动A *搜索过程的问题。实验评估表明,通过用GA解决方案驱动DC *中包含的A *算法,执行数据粒化所需的时间可以减少至少45%至99%。
Efficiency improvement of DC∗ through a Genetic Guidance
DC∗ is a method for generating interpretable fuzzy information granules from pre-classified data. It is based on the subsequent application of LVQ1 for data compression and an ad-hoc procedure based on A∗ to represent data with the minimum number of fuzzy information granules satisfying some interpretability constraints. While being efficient in tackling several problems, the A∗ procedure included in DC∗ may happen to require a long computation time because the A∗ algorithm has exponential time complexity in the worst case. In this paper, we approach the problem of driving the search process of A∗ by suggesting a close-to-optimal solution that is produced through a Genetic Algorithm (GA). Experimental evaluations show that, by driving the A∗ algorithm embodied in DC∗ with a GA solution, the time required to perform data granulation can be reduced by at least 45% and up to 99%.