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• W1973056687 abstract "We consider differentially private frequent itemset mining. We begin by exploring the theoretical difficulty of simultaneously providing good utility and good privacy in this task. While our analysis proves that in general this is very difficult, it leaves a glimmer of hope in that our proof of difficulty relies on the existence of long transactions (that is, transactions containing many items). Accordingly, we investigate an approach that begins by truncating long transactions, trading off errors introduced by the truncation with those introduced by the noise added to guarantee privacy. Experimental results over standard benchmark databases show that truncating is indeed effective. Our algorithm solves the classical frequent itemset mining problem, in which the goal is to find all itemsets whose support exceeds a threshold. Related work has proposed differentially private algorithms for the top- k itemset mining problem (find the k most frequent itemsets.) An experimental comparison with those algorithms show that our algorithm achieves better F -score unless k is small." @default.
• W1973056687 created "2016-06-24" @default.
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• W1973056687 date "2012-11-01" @default.
• W1973056687 modified "2023-10-16" @default.
• W1973056687 title "On differentially private frequent itemset mining" @default.
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• W1973056687 doi "https://doi.org/10.14778/2428536.2428539" @default.
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