By Xudong Luo, Jeffrey Xu Yu, Zhi Li
This ebook constitutes the complaints of the tenth foreign convention on complicated info Mining and functions, ADMA 2014, held in Guilin, China in the course of December 2014. The forty eight normal papers and 10 workshop papers offered during this quantity have been conscientiously reviewed and chosen from ninety submissions. They take care of the next themes: facts mining, social community and social media, suggest structures, database, dimensionality relief, develop laptop studying strategies, class, enormous info and purposes, clustering equipment, computer studying, and information mining and database.
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Extra info for Advanced Data Mining and Applications: 10th International Conference, ADMA 2014, Guilin, China, December 19-21, 2014. Proceedings
How much reduction can be achieved by these representations? Can eﬃcient algorithms be developed to mine these representations? What are the pros and cons of these representations? To answer these questions, we investigate the properties of generators in the context of HUIM and devise two alternative concise representations of HUIs using generators, respectively called High Utility Generators (HUGs) and Generator of High Utility Itemsets (GHUIs). We propose two eﬃcient algorithms named HUG-Miner and GHUI-Miner to respectively mine these representations, and we analyze their respective advantages in terms of speed and number of patterns found.
8436, pp. 83–94. Springer, Heidelberg (2014) 7. : Novel Concise Representations of High Utility Itemsets using Generator Patterns. , Li, Z. ) ADMA 2014. LNCS, vol. 8933, pp. 30–43. Springer, Heidelberg (2014) 8. : Isolated items discarding strategy for discovering high utility itemsets. Data & Knowledge Engineering 64(1), 198–217 (2008) 9. : Mining High Utility Itemsets without Candidate Generation. In: Proceedings of CIKM 2012, pp. 55–64 (2012) 10. : A two-phase algorithm for fast discovery of high utility itemsets.
Unit proﬁt). g. purchase quantity). For example, Fig. T4 ). External utilities of items a, c, and e in T2 are q(a, T2 ) = 2, q(c, T2 ) = 6 and q(e, T2 ) = 2. Fig. 1 (right) indicates that the external utility of a, b, e are respectively p(a) = 5, p(c) = 1 and p(e) = 3. Deﬁnition 1 (Utility of an itemset). The utility of an item i in a transaction Tc is denoted as u(i, Tc ) and deﬁned as p(i) × q(i, Tc ). An itemset is a set of items. The utility of an itemset X in a transaction Tc is deﬁned as u(X, Tc ) = i∈X u(i, Tc ).