DMajor - Application programming interface for database mining

In the process of rule generation from databases, the volume of generated r ules often greatly exceeds the size of the underlying database. Typically o nly a small fraction of that large volume of rules is of any interest to th e user. We believe that the main challenge facing database mining is what t o do with the rules after having generated them. Rule post-processing invol ves selecting rules which are relevant or interesting, building application s which use the rules and finally, combining rules together to form a large r and more meaningful statements. In this paper we propose an application p rogramming interface which enables faster development of applications which rely on rules. We also provide a rule query language which allows both sel ective rule generation as well as retrieval of selected categories of rules from the pre-generated rule collections.