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time gap in GSP source code
Posted by:
eileenfang
Date: March 04, 2019 11:30PM
Hello!
I am using GSP algorithm source code in this website. But I found there is no specific codes to deal with time gaps in mining frequent patterns. In 'SequenceDatabase.java' file, in 'addsequence' function, there is some code about timestamp, but I do not understand it. Can you explain it to me? It is very important to me because I am doing my final year project.
I am looking forward to your reply.
Thank you!
Eileen
I am using GSP algorithm source code in this website. But I found there is no specific codes to deal with time gaps in mining frequent patterns. In 'SequenceDatabase.java' file, in 'addsequence' function, there is some code about timestamp, but I do not understand it. Can you explain it to me? It is very important to me because I am doing my final year project.
I am looking forward to your reply.
Thank you!
Eileen
Re: time gap in GSP source code
Posted by:
webmasterphilfv
Date: March 05, 2019 12:28AM
Hi,
Thanks for using SPMF.
yes the GSP implementation does not consider time gaps. This part of the GSP paper has not been implemented.
If you want to use time gaps with timestamps, you could consider using the Hirate-Yamana algorithm instead (in SPMF).
Or if you want constraints on gaps but do not have timestamps, you could consider the algorithms such as CM-SPAM which offer you to set min gap and max gap constraints when there is no timestamps.
Hope this help
Philippe
Thanks for using SPMF.
yes the GSP implementation does not consider time gaps. This part of the GSP paper has not been implemented.
If you want to use time gaps with timestamps, you could consider using the Hirate-Yamana algorithm instead (in SPMF).
Or if you want constraints on gaps but do not have timestamps, you could consider the algorithms such as CM-SPAM which offer you to set min gap and max gap constraints when there is no timestamps.
Hope this help
Philippe