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18 days ago

tianikowa

"If it is easy to combine, then it is not interesting..."
That's exactly the same. You are the best professor. I am not fluent in English, And I can not really convey my sense!
Thank you very much for your complete description. Now I am studying several other papers. I hope to give you some good news from this topic

Forum: The Data Mining / Big Data Forum

Forum: The Data Mining / Big Data Forum

19 days ago

tianikowa

Hello, Prof. Philippe Fournier-Viger.
I'm a master's degree student and for final project , I'm researching on "Top-k high utility itemsets mining". During this period of study, I had studies in the field of data mining and implemented in C#, such as Two-phase, Hui-miner, La prune, Efim, TKEH, kHMC ,...
Now I'm looking for a new idea for top-k mining. I'm having trouble at this st

Forum: The Data Mining / Big Data Forum

Forum: The Data Mining / Big Data Forum

3 months ago

tianikowa

Dear Professor ,
I would like to Implementation TKEH Algorithm. I have encountered some problems such as COV strategy and EUCS.
Is the implementation of this article available to you?
Can you provide implementation of the kHMC algorithm?
Can you give me some useful tips?
Your assist will lighten this way for me to find the best solution for my questions, which will always push me to rem

Forum: The Data Mining / Big Data Forum

Forum: The Data Mining / Big Data Forum

7 months ago

tianikowa

Thank you for your attention, Yes, I'll definitely be looking for spmf.
But just one question of "get the initial population P with the proposed problem-specific initialize strategy" :
What is the concept of the following sentence?
"the child individuals generated from parent individuals by using cross-mutation operator should be valid and diverse as many as possible so that

Forum: The Data Mining / Big Data Forum

Forum: The Data Mining / Big Data Forum

7 months ago

tianikowa

Yes, I tried, but I did not get an answer during this time. Is it possible to provide just a numerical example of the MOEA/FHUI algorithm? Please
best regards

Forum: The Data Mining / Big Data Forum

Forum: The Data Mining / Big Data Forum

9 months ago

tianikowa

Hi, Is there a documentation and java source code for this article?
Title: A Multi-Objective Evolutionary Approach for Mining Frequent and High Utility Itemsets
Author: Lei Zhang Guanglong Fu Fan Cheng Jianfeng Qiu Yansen Su
DOI: http://dx.doi.org/doi:10.1016/j.asoc.2017.09.033
thanks, best regards

Forum: The Data Mining / Big Data Forum

Forum: The Data Mining / Big Data Forum

1 year ago

tianikowa

thanks for your response , best regards

Forum: The Data Mining / Big Data Forum

Forum: The Data Mining / Big Data Forum

1 year ago

tianikowa

So which items can I combine together?
for dfgb
d,f,g | f,g,b (two different , d and b)
d,f,g | d,g,b (two different , f and b)
d,f,g | d,f,b (two different , b and g)
d,f,b | f,g,b (two different , d and g)

Forum: The Data Mining / Big Data Forum

Forum: The Data Mining / Big Data Forum

1 year ago

tianikowa

Hi. I was coding the hui-miner ( Mining High Utility Itemsets without Candidate Generation ) in C#, which I encountered a problem.
There is no problem in 1-itemset and 2-itemset items. but in k-itemset, for example :
To create "dfgb" :
u({dfgb}, Each transaction) = u({dfg}, Each transaction) + u({fgb}, Each transaction) - u({fg}, Each transaction)
It has no problems programmin

Forum: The Data Mining / Big Data Forum

Forum: The Data Mining / Big Data Forum

1 year ago

tianikowa

I intend to implement the algorithm two phase (spmf) in C#. In the article, there is no semicode. You can tell it' semicode?

Forum: The Data Mining / Big Data Forum

Forum: The Data Mining / Big Data Forum

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