How Commonsense Knowledge Helps with Natural Language Tasks: A Survey of Recent Resources and Methodologies

In this paper, we give an overview of commonsense reasoning in natural language processing, which requires a deeper understanding of the contexts and usually involves inference over implicit external knowledge. We first review some popular commonsense knowledge bases and commonsense reasoning benchmarks, but give more emphasis on the methodologies, including recent approaches that aim at solving some general natural language problems that take advantage of external knowledge bases. Finally, we discuss some future directions in pushing the boundary of commonsense reasoning in natural language processing.