Mean-selector (Lin et al., 2016;Ye et al., 2017): The bag encoding is computed as Max-selector (Jiang et al., 2016): The j th element of bag encoding x is computed as Attention-selector Attention mechanism is extensively used for sentence selection in relation extraction by weighted summing of the sentence vectors, such as in (Lin et al., 2016;Ye et al., 2017;Su et al., 2018).
all these works assume that the labels are correct and only use the golden label embeddings to select sentences at training stage.