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Posted by: chen
Date: September 24, 2021 04:38AM

Dr. Fournier-Viger

Many thanks for your work on SPM. Your paper bring me into this domain.

But when I read your paper, I found some conflict between the theory and the example. In the paper:
Closed sequential patterns [56, 48, 30, 108, 109] are the set of sequential patterns that are not included in other sequential patterns having the same support, that is: CS = {sa|sa ∈ FS∧ ̸ ∃sb ∈ FS such that sa

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A question about <A Survey of Sequential Pattern Mining>
Posted by: chen
Date: September 24, 2021 04:50AM

the page did not display completely. please check the following link:
https://www.jianshu.com/p/6decaac80585

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Re: A question about <A Survey of Sequential Pattern Mining>
Date: September 24, 2021 06:44AM

Good evening,

Thanks for reading the paper.

There was indeed an error in the example.

Since <(a)> and <(a),(f)> have the same support, the pattern <(a)> cannot be closed!

I have fixed the PDF of the paper that is hosted on my website to remove this error.

If you spot some other problems, please let me know.

Best regards,

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