Most of the current state-of-the-art methods (Zeng et al., 2015;Lin et al., 2016) make the denoising operation in the sentence bag of entity pair, and integrate this process into the distant supervision relation ex-traction.
indeed, these methods can filter a substantial number of noise samples; they overlook the case that all sentences of an entity pair are false positive, which is also the common phenomenon in distant supervision datasets.