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Sehyun Choi

4 accepted papers

2024

AbsInstruct: Eliciting Abstraction Ability from LLMs through Explanation Tuning with Plausibility Estimation

ACL 2024long

Abstraction ability is crucial in human intelligence, which can also benefit various tasks in NLP study. Existing work shows that LLMs are deficient in abstract ability, and how to improve it remains unexplored. In this work, we design the framework AbsInstruct to enhance LLMs’ abstraction ability t…

2024

AbsPyramid: Benchmarking the Abstraction Ability of Language Models with a Unified Entailment Graph

NAACL 2024findings

Cognitive research indicates that abstraction ability is essential in human intelligence, which remains under-explored in language models. In this paper, we present AbsPyramid, a unified entailment graph of 221K textual descriptions of abstraction knowledge. While existing resources only touch nouns…

2023

KCTS: Knowledge-Constrained Tree Search Decoding with Token-Level Hallucination Detection

EMNLP 2023long main

Large Language Models (LLMs) have demonstrated remarkable human-level natural language generation capabilities. However, their potential to generate misinformation, often called the *hallucination* problem, poses a significant risk to their deployment. A common approach to address this issue is to r…

Cited by 0SourcecodeScholar
2021

Benchmarking Commonsense Knowledge Base Population with an Effective Evaluation Dataset

EMNLP 2021main

Reasoning over commonsense knowledge bases (CSKB) whose elements are in the form of free-text is an important yet hard task in NLP. While CSKB completion only fills the missing links within the domain of the CSKB, CSKB population is alternatively proposed with the goal of reasoning unseen assertions…