“In recent years, many researchers have recognized the importance of associating events withsentiments. Previous approaches focus on generalizing events and extracting sentimental in-formation from a large-scale corpus. However, since context is absent and sentiment is oftenimplicit in the event, these methods are limited in comprehending the semantics of the eventand capturing effective sentimental clues. In this work, we propose a novel Multi-perspectiveKnowledge-injected Interaction Network (MKIN) to fully understand the event and accuratelypredict its sentiment by injecting multi-perspective knowledge. Specifically, we leverage con-texts to provide sufficient semantic information and perform context modeling to capture thesemantic relationships between events and contexts. Moreover, we also introduce human emo-tional feedback and sentiment-related concepts to provide explicit sentimental clues from theperspective of human emotional state and word meaning, filling the reasoning gap in the senti-ment prediction process. Experimental results on the gold standard dataset show that our modelachieves better performance over the baseline models.”

Abstractive dialogue summarization is the task of capturing the highlights of a dialogue andrewriting them into a concise version. In this paper we present a novel multi-speaker dialogue summarizer to demonstrate how large-scale commonsense knowledge can facilitate dialogue un-derstanding and summary generation. In detail we consider utterance and commonsense knowl-edge as two different types of data and design a Dialogue Heterogeneous Graph Network (D-HGN) for modeling both information. Meanwhile we also add speakers as heterogeneous nodes to facilitate information flow. Experimental results on the SAMSum dataset show that our modelcan outperform various methods. We also conduct zero-shot setting experiments on the Argu-mentative Dialogue Summary Corpus the results show that our model can better generalized tothe new domain.