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Compare FHM+ and EFIM
Posted by: kirti
Date: March 27, 2017 07:14PM

Comparison Of FHM+ and EFIM algorithm

by using length constrain which parameter of EFIM we can prove??

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Re: Compare FHM+ and EFIM
Date: March 27, 2017 07:23PM

Hello,

EFIM does not have the length constraint. An interesting research project would be to add the length constraint of FHM+ to EFIM. I think that it could be done and not be so difficult. It is a good idea.

Best,

Philippe

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Re: Compare FHM+ and EFIM
Posted by: kirti
Date: March 27, 2017 07:29PM

Which of the strategy of FHM+ we can Used in EFIM?


For ex. RTU,RTWU, sub tree utility, local utility ,etc...???


I want to improve EFIM give me some idea...

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Re: Compare FHM+ and EFIM
Date: March 27, 2017 09:59PM

In FHM+, the new idea is to reduce upper-bounds on the utility of itemsets using the maximum length constraint.

In EFIM, the upper-bounds are called sub-tree utility, local utility...

So you could apply the maximum length constraint to reduce the sub-stree utility and local utility in EFIM.

This would certainly be faster than FHM+ since EFIM is faster than FHM.

But you need to read the papers carefully to understand how EFIM works and then think about how to combine the ideas of FHM+ in EFIM.

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Re: Compare FHM+ and EFIM
Posted by: Stephanos
Date: March 31, 2017 06:43AM

Is there also a C# version of these algorithms?

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Re: Compare FHM+ and EFIM
Date: March 31, 2017 08:39PM

Not to my knowledge, but you can check the Java code and try to implement it in C#. If you do it, please let me know. We could put the code on the SPMF website.

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Re: Compare FHM+ and EFIM
Posted by: Singh
Date: April 17, 2017 05:37AM

I also want C# code sir. Please program it for us.

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Re: Compare FHM+ and EFIM
Date: April 18, 2017 05:40PM

Hello Singh,

I do not have plan to implement it in C# for now. But if you implement it, please share it since other people have requested it.

Best,

Philippe

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Re: Compare FHM+ and EFIM
Posted by: Kyarr
Date: May 20, 2017 05:13AM

I also need the code of EFIM and FHM in C# for itemset utility mining. Please send it to my e-mail.

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Re: Compare FHM+ and EFIM
Posted by: Bobby
Date: July 09, 2017 07:38AM

Where can I download the high utility itemset dataset used to validate the EFIM algorithm and the UPGRowth?

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Re: Compare FHM+ and EFIM
Date: July 10, 2017 07:50AM

You can get all the datasets for high utility itemset mining on the SPMF website:

http://www.philippe-fournier-viger.com/spmf/index.php?link=datasets.php

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