Thanks for your complete and accurate description
Forum: The Data Mining / Big Data Forum

Hello, Prof. Philippe Fournier-Viger. Thank you for taking the trouble to help me for previous questions. I do appreciate it. In paper Efim-Closed, for find closed high utility itemsets mining, used of two methods Forward/Backward extension checking: To determine if an itemset X is closed, check if there exists an item not in X that appears in all transactions where X appears. If yes
Forum: The Data Mining / Big Data Forum

it is completely clear. Thank you very much
Forum: The Data Mining / Big Data Forum

Hello, Prof. Philippe Fournier-Viger. Sorting Transactions for Transaction Merging (HTM), the Lexicographical order of transactions is used. How does this sort work? What is the sorting criterion? Can you give an example?
Forum: The Data Mining / Big Data Forum

Thank you. Thank you. This issue is clarifies now.
Forum: The Data Mining / Big Data Forum

Hello, Prof. Philippe Fournier-Viger. Have you read paper "Mining top-k high utility itemsets with effective threshold raising strategies" from Krishnamoorthy (2019)? In section 4.2.2 , Why is the maximum number of breakpoints considered 3 (q=3 , contiguous)? If we have more breakpoints in one itemset, what should we do?
Forum: The Data Mining / Big Data Forum

Hello, Prof. Fournier-Viger I can't find an article on top-k closed high utility itemsets mining. Is this new? if not, please introduce an article on this. else is there an motivation to mining these itemsets? please help me regards.
Forum: The Data Mining / Big Data Forum