arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1904.03336cs.DB
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基于相关效用的模式挖掘

Correlated Utility-based Pattern Mining

Wensheng Gan, Jerry Chun-Wei Lin, Han-Chieh Chao, Hamido Fujita, Philip S. Yu

摘要:

在数据采掘和分析领域,经济学中的效用理论可以在许多实际应用中带来好处。近十年来,一个新兴的研究领域--面向公用事业的采矿已经引起了人们的极大关注。然而,以往的研究有局限性,他们很少考虑项目之间的内在相关性的模式。考虑消费者的购买行为,一个高效用的产品组(w.r.t.多产品)可以包含几个非常高效用的产品和一些低效用的产品。然而,它被认为是一个有价值的模式,即使这种行为/模式可能不是高度相关的,甚至是偶然发生的。在本文中,针对这些挑战,我们提出了一种有效的效用挖掘方法,即非冗余相关高效用模式矿工(CoUPM),考虑到正相关性和盈利价值。具有高实用性和强正相关性的衍生模式可以比那些仅具有高利润价值的模式带来更有洞察力的可用性。对效用表结构进行了改进,使其既能存储相关性信息,又能存储效用信息。几个修剪策略进一步发展,以提高效率,发现所需的模式。实验结果表明,非冗余相关的高效用模式比其他类型的有趣模式具有更高的有效性。此外,所提出的CoUPM算法的效率显着优于国家的最先进的算法。

英文摘要:

In the field of data mining and analytics, the utility theory from Economic can bring benefits in many real-life applications. In recent decade, a new research field called utility-oriented mining has already attracted great attention. Previous studies have, however, the limitation that they rarely consider the inherent correlation of items among patterns. Consider the purchase behaviors of consumer, a high-utility group of products (w.r.t. multi-products) may contain several very high-utility products with some low-utility products. However, it is considered as a valuable pattern even if this behavior/pattern may be not highly correlated, or even happen by chance. In this paper, in light of these challenges, we propose an efficient utility mining approach namely non-redundant Correlated high-Utility Pattern Miner (CoUPM) by taking positive correlation and profitable value into account. The derived patterns with high utility and strong positive correlation can lead to more insightful availability than those patterns only have high profitable values. The utility-list structure is revised and applied to store necessary information of both correlation and utility. Several pruning strategies are further developed to improve the efficiency for discovering the desired patterns. Experimental results show that the non-redundant correlated high-utility patterns have more effectiveness than some other kinds of interesting patterns. Moreover, efficiency of the proposed CoUPM algorithm significantly outperforms the state-of-the-art algorithm.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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