论文标题
SRLGRN:语义角色标签图形推理网络
SRLGRN: Semantic Role Labeling Graph Reasoning Network
论文作者
论文摘要
这项工作涉及对多跳问题回答(QA)的学习和推理的挑战。我们根据句子的语义结构提出了一个图形推理网络,以学习跨段落推理路径并找到支持事实和共同答案。所提出的图是一个异构文档级别的图形,包含类型句子的节点(问题,标题和其他句子),并且每个句子都包含参数为节点和谓词边缘的语义角色标记子图。将参数类型,参数短语和边缘的语义纳入SRL谓词到图形编码器有助于查找以及推理路径的解释性。我们提出的方法与最近的最新模型相比,在HOTPOTQA干扰物设定基准测试基准上显示了竞争性能。
This work deals with the challenge of learning and reasoning over multi-hop question answering (QA). We propose a graph reasoning network based on the semantic structure of the sentences to learn cross paragraph reasoning paths and find the supporting facts and the answer jointly. The proposed graph is a heterogeneous document-level graph that contains nodes of type sentence (question, title, and other sentences), and semantic role labeling sub-graphs per sentence that contain arguments as nodes and predicates as edges. Incorporating the argument types, the argument phrases, and the semantics of the edges originated from SRL predicates into the graph encoder helps in finding and also the explainability of the reasoning paths. Our proposed approach shows competitive performance on the HotpotQA distractor setting benchmark compared to the recent state-of-the-art models.