Check all that apply. Deriving association rules from frequent itemsets requires scanning the dataset. The bottleneck in finding strong association rules is in finding frequent itemsets. The search space of frequent itemsets is a lattice of size2 numberoftransaction . The search space of frequent itemsets is a lattice of size2 numberofitems . Extracting quantitative association rules is an optimization problem, because it is not possible to do a systematic search of association rules involving numerical variables. In association rules, if an itemset is frequent, then all its supersets are frequent.
