Before revision:  To overcome this issue, we propose a novel method to automatically construct a KG from unstructured documents that does not require external alignment and explore its use to extract desired information. To summarize our approach, we first extract knowledge tuples in their surface form from unstructured documents , encode them using a pre-trained language model, and link the surface-entities via the encoding to form the graph structure.
After revision:  To overcome this issue, we propose a novel method to automatically construct a KG from unstructured documents that does not require external alignment . We first extract surface-form knowledge tuples from unstructured documents , encode them using a pre-trained language model, and link the surface-entities via the encoding to form the graph structure.