no code implementations • 1 Apr 2024 • ChaeHun Park, Minseok Choi, Dohyun Lee, Jaegul Choo
Recent studies proposed evaluation metrics that assess generated responses by considering their relevance to previous dialogue histories.
no code implementations • 22 Sep 2023 • Jimin Hong, ChaeHun Park, Jaegul Choo
We then enhance the diversity of the second model by focusing on patterns that the first model fails to learn.
1 code implementation • 8 May 2023 • ChaeHun Park, Seungil Chad Lee, Daniel Rim, Jaegul Choo
Despite the recent advances in open-domain dialogue systems, building a reliable evaluation metric is still a challenging problem.
no code implementations • 31 Oct 2022 • Nyoungwoo Lee, ChaeHun Park, Ho-Jin Choi, Jaegul Choo
To overcome these limitations, this paper proposes a simple but efficient method for generating adversarial negative responses leveraging a large-scale language model.
1 code implementation • COLING 2022 • Taehee Kim, ChaeHun Park, Jimin Hong, Radhika Dua, Edward Choi, Jaegul Choo
To analyze this, we first train a classifier that identifies machine-written sentences, and observe that the linguistic features of the sentences identified as written by a machine are significantly different from those of human-written sentences.
no code implementations • 1 Sep 2021 • Nyoungwoo Lee, ChaeHun Park, Ho-Jin Choi
In open-domain dialogues, predictive uncertainties are mainly evaluated in a domain shift setting to cope with out-of-distribution inputs.
1 code implementation • NAACL 2021 • ChaeHun Park, Eugene Jang, Wonsuk Yang, Jong Park
Reference-based metrics that rely on comparisons to a set of known correct responses often fail to account for this variety, and consequently correlate poorly with human judgment.
1 code implementation • NAACL (sdp) 2021 • Soyeong Jeong, Jinheon Baek, ChaeHun Park, Jong C. Park
In this paper, we propose an Unsupervised Document Expansion with Generation (UDEG) framework with a pre-trained language model, which generates diverse supplementary sentences for the original document without using labels on query-document pairs for training.
no code implementations • 19 Feb 2021 • ChaeHun Park, Sangwoo Seo
Measuring the similarity between two different sentential arguments is an important task in argument mining.
1 code implementation • WS 2019 • ChaeHun Park, Wonsuk Yang, Jong Park
Considering diverse aspects of an argumentative issue is an essential step for mitigating a biased opinion and making reasonable decisions.