Definition
A constraint C is convertible if and only if C is convertible antimonotone or convertible monotone. A constraint C is convertible antimonotone provided there is an order R on items such that when an ordered itemset S satisfies constraint C, so does any prefix of S. A constraint C is convertible monotone provided there is an order R’ on items such that when an ordered itemset S’ violates constraint C, so does any prefix of S’.
Key Points
Although some constraints are neither antimonotone nor monotone in general, several of them can be converted into antimonotone or monotone ones by properly ordering the items. These convertible constraints [1,2,3] possess the following nice properties. By arranging items according to some proper order R, if an itemset S satisfies a convertible antimonotone constraint C cam , then all...
Recommended Reading
Pei J, Han J. Can we push more constraints into frequent pattern mining? In: Proceedings of 6th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining; 2000. p. 350–4.
Pei J, Han J, Lakshmanan LVS. Mining frequent item sets with convertible constraints. In: Proceedings of 17th International Conference on Data Engineering; 2001. p. 433–42.
Pei J, Han J, Lakshmanan LVS. Pushing convertible constraints in frequent itemset mining. Data Mining Knowl Discov. 2004;8(3):227–52. doi:10.1023/B:DAMI.0000023674.74932.4c.
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Leung, C.KS. (2017). Convertible Constraints. In: Liu, L., Özsu, M. (eds) Encyclopedia of Database Systems. Springer, New York, NY. https://doi.org/10.1007/978-1-4899-7993-3_5047-2
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DOI: https://doi.org/10.1007/978-1-4899-7993-3_5047-2
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