Apriori algorithm implementation based on hash tree.
Dataset: Music.txt.gz (https://snap.stanford.edu/data/web-Amazon.html)
On my computer (CPU: i5-11400H), the program execution time with minimum support 0.0009 about 2 min. 30 sec. Although mlxtend apriori isn't based on hash tree, mlxtend apriori low_memory mode about 1 min. It will faster if memory is enough.