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Proceedings of the 2021 Conference on Empirical Methods in Natural Language Processing
This paper proposes to study a fine-grained semantic novelty detection task, which can be illustrated with the following example. It is normal that a person walks a dog in the park, but if someone says "A man is walking a chicken in the park," it is novel. Given a set of natural language descriptions of normal scenes, we want to identify descriptions of novel scenes. We are not aware of any existing work that solves the problem. Although existing novelty or anomaly detection algorithms aredoi:10.18653/v1/2021.emnlp-main.66 fatcat:s6khxdp2ubd2rblp4bzpnqgb5q