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Choonghyun Park

4 accepted papers

2024

Adaptive Contrastive Decoding in Retrieval-Augmented Generation for Handling Noisy Contexts

EMNLP 2024finding

When using large language models (LLMs) in knowledge-intensive tasks, such as open-domain question answering, external context can bridge the gap between external knowledge and the LLMs’ parametric knowledge.Recent research has been developed to amplify contextual knowledge over the parametric knowl…

2024

Aligning Language Models to Explicitly Handle Ambiguity

EMNLP 2024main

In interactions between users and language model agents, user utterances frequently exhibit ellipsis (omission of words or phrases) or imprecision (lack of exactness) to prioritize efficiency. This can lead to varying interpretations of the same input based on different assumptions or background kno…

2023

Universal Domain Adaptation for Robust Handling of Distributional Shifts in NLP

EMNLP 2023long findings

When deploying machine learning systems to the wild, it is highly desirable for them to effectively leverage prior knowledge to the unfamiliar domain while also firing alarms to anomalous inputs. In order to address these requirements, Universal Domain Adaptation (UniDA) has emerged as a novel resea…

Cited by 0SourcecodeScholar
2022

Enhancing Out-of-Distribution Detection in Natural Language Understanding via Implicit Layer Ensemble

EMNLP 2022finding

Out-of-distribution (OOD) detection aims to discern outliers from the intended data distribution, which is crucial to maintaining high reliability and a good user experience.Most recent studies in OOD detection utilize the information from a single representation that resides in the penultimate laye…