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A bug in NegFIN
Posted by: Mei
Date: November 10, 2020 05:36PM

Using NegFin Algorithm can discover 1411341 frequent itemsets while using DFIN,Eclat,FPGrowth,HMine and etc,just discover frequent 1 itemsets(1197),why?



Edited 1 time(s). Last edit at 11/13/2020 08:38AM by webmasterphilfv.

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Re: A bug
Posted by: Mei
Date: November 10, 2020 05:52PM

output file only has frequent 1 itemsets

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Re: A bug
Posted by: phil
Date: November 10, 2020 06:59PM

Is the input format correct?
- an item cannot appear more than once per transaction
- items are sorted on each line
- items are positive numbers

That could be the problkem

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Re: A bug
Posted by: Mei
Date: November 10, 2020 07:11PM

My datasets meet the tree tips。

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Re: A bug
Date: November 11, 2020 04:50AM

Hi, I see.

You can send me your dataset to philfv8 AT yahoo DOT com

and tell me what is the minimum support value,

and I can test it to see what is the problem.

If there was a bug, I guess it would be in the NegFin algorithm, since other algorithms like FPGrowth have been quite extensively tested and used by many people but we never know. I can check to find out what is the problem.


Best regards,

Philippe

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