Following previous works that use scores of local classifiers for uncertainty measurement (Sassano and Kurohashi, 2010;Flannery and Mori, 2015), we use Score(x, d * ) to measure the uncertainty of x, assuming that the model is more uncertain about x if d * gets a smaller score.
we find that directly using Score(x, d * ) always selects very short sentences due to the definition in Eq.