Joint prediction in MST-style discourse parsing for argumentation mining
Andreas Peldszus, Manfred Stede · 2015
We introduce a new approach to argumentation mining that we applied to a parallel German/English corpus of short texts annotated with argumentation structure.We focus on structure prediction, which we break into a number of subtasks: relation identification, central claim identification, role classification, and function classification.Our new model jointly predicts different aspects of the structure by combining the different subtask predictions in the edge weights of an evidence graph; we then apply a standard MST decoding algorithm.This model not only outperforms two reasonable baselines and two datadriven models of global argument structure for the difficult subtask of relation identification, but also improves the results for central claim identification and function classification and it compares favorably to a complex mstparser pipeline.