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Yihuai Hong

7 accepted papers

2025

Intrinsic Test of Unlearning Using Parametric Knowledge Traces

EMNLP 2025

The task of “unlearning” certain concepts in large language models (LLMs) has gained attention for its role in mitigating harmful, private, or incorrect outputs. Current evaluations mostly rely on behavioral tests, without monitoring residual knowledge in model parameters, which can be adversarially

2025

Precise In-Parameter Concept Erasure in Large Language Models

EMNLP 2025

Large language models (LLMs) often acquire knowledge during pretraining that is undesirable in downstream deployments, e.g., sensitive information or copyrighted content. Existing approaches for removing such knowledge rely on fine-tuning, training low-rank adapters or fact-level editing, but these

2025

The Reasoning-Memorization Interplay in Language Models Is Mediated by a Single Direction

ACL 2025finding

Large language models (LLMs) excel on a variety of reasoning benchmarks, but previous studies suggest they sometimes struggle to generalize to unseen questions, potentially due to over-reliance on memorized training examples. However, the precise conditions under which LLMs switch between reasoning…

2025

The Rise of Parameter Specialization for Knowledge Storage in Large Language Models

NeurIPS 2025poster

Over time, a growing wave of large language models from various series has been introduced to the community. Researchers are striving to maximize the performance of language models with constrained parameter sizes. However, from a microscopic perspective, there has been limited research on how to be…

Cited by 0SourceScholar
2024

ConsistentEE: A Consistent and Hardness-Guided Early Exiting Method for Accelerating Language Models Inference

AAAI 2024technical

Early Exiting is one of the most popular methods to achieve efficient inference. Current early exiting methods adopt the (weighted) sum of the cross entropy loss of all internal classifiers as the objective function during training, imposing all these classifiers to predict all instances correctly.…

2024

Dissecting Fine-Tuning Unlearning in Large Language Models

EMNLP 2024main

Fine-tuning-based unlearning methods prevail for erasing targeted harmful, sensitive, or copyrighted information within large language models while preserving overall capabilities. However, the true effectiveness of the methods is unclear. In this paper, we delve into the limitations of fine-tuning-…