Catch underflow error in simple_scorer
Catch underflow error in simple_scorer

Uses the same logic as in complementary_belief

bgyori/indra,bgyori/indra,johnbachman/indra,johnbachman/indra,johnbachman/indra,sorgerlab/indra,sorgerlab/belpy,sorgerlab/indra,sorgerlab/indra,bgyori/indra,sorgerlab/belpy,sorgerlab/belpy