We performed an experimental comparison between URES, URES-NER and the state-ofthe-art KnowItAll system, and showed that URES can double or even triple the recall achieved by KnowItAll for relatively rare relation instances, and get an additional 5-15% boost in recall by utilizing a simple NER.
we have shown that URES is more effective in identifying low-frequency instances, due to its more expressive rule representation, and its classifier (augmented by NER) that inhibits those rules from overgeneralizing.