Re: Does it include these ?
Date: December 02, 2018 03:53PM
Hello,
Ruhallah Ahmadian Wrote:
-------------------------------------------------------
> I'm looking for these algorithm, are there these
> in SPMF ?
> Apriori with Transaction reduction
No.
> Apriori with Partitioning
No.
> Apriori with Sampling
No.
> Apriori with Dynamic itemset counting
No.
> Vertical Data Format
Yes, several algorithms in SPMF use a vertical data format such as AprioriTID, Eclat, Charm, etc.
In SPMF there are four main versions of Apriori:
- Apriori
- AprioriTID (using the vertical format)
- AprioriTIDbitset (using the vertical format, implemented as bitvectors)
- AprioriHT (optimized using a Hash tree structure
By the way, there are some algorithms that are faster than Apriori such as FPGrowth, which are also implemented in SPMF. This is why, I did not implement too much optimizations for Apriori. Even if Apriori is optimized, it will always be slower than algorithms like FPGrowth.
Best regards,
Edited 1 time(s). Last edit at 12/02/2018 04:00PM by webmasterphilfv.