After the seminal paper by Agrawal et al. [AIS93] on association rules, the field of associating rules and especially
its sub-field of frequent itemset generation has seen a great deal of research activity. The extensive research in this
field has led to the development of efficient techniques for generating, storing and pruning frequent itemsets [SK01,
HPY00, AAP00, Zak00]. These advances accompanied by growth in the computing power has made the task of
frequent itemsets generation much more manageable, than in the past.