2 Problems with Inductive Logic Programming

2 problems of ILP systems wrt. data-mining problems:
1. they deal artificially with functions (by using modes to indicate that one argument of a predicate is the output, thus emulating a function)
2. data-mining problems are characterized by the absence of negative evidence, and ILP systems must avoid the most general hypothesis
Source: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.225.4755&rep=rep1&type=pdf