CLaC at SemEval-2020 Task 5: Muli-task Stacked Bi-LSTMs
MinGyou Sung, Parsa Bagherzadeh, Sabine Bergler · 2020
We consider detection of the span of antecedents and consequents in argumentative prose a structural, grammatical task.Our system comprises a set of stacked Bi-LSTMs trained on two complementary linguistic annotations.We explore the effectiveness of grammatical features (POS and clause type) through ablation.The reported experiments suggest that a multi-task learning approach using this external, grammatical knowledge is useful for detecting the extent of antecedents and consequents and performs nearly as well without the use of word embeddings.