Research In Motion
Mining cost efficient item-sets from a transactional database refers to the discovery of transaction sets with cost efficient characteristics improving overall profits. Although a number of relevant algorithms have been proposed in recent years, they incur the problem of producing a large number of candidate item-sets for cost efficient item-sets. Such a large number of candidate item-sets degrade the mining performance in terms of execution time and space requirement. The situation may become worse when the database contains lots of long transactions or long cost efficient item-sets.