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Changhao Guan

6 accepted papers

2026

Adaptive Utilization of Low-Rank Adaptation via Conditioned Gating

ICML 2026poster

Low-Rank Adaptation (LoRA) achieves parameter-efficient fine-tuning by constraining model updates to a low-rank subspace and has been widely used in practice. However, LoRA typically employs a shared low-rank update across tokens, which limits its ability to fully exploit the adaptation subspace for…

Cited by 0SourceScholar
2025

Boosting Data Utilization for Multilingual Dense Retrieval

EMNLP 2025

Multilingual dense retrieval aims to retrieve relevant documents across different languages based on a unified retriever model. The challenge lies in aligning representations of different languages in a shared vector space. The common practice is to fine-tune the dense retriever via contrastive lear

2025

Multi-Stage LLM Fine-Tuning with a Continual Learning Setting

NAACL 2025findings

In recent years, large language models (LLMs) have made significant progress in knowledge-intensive applications. However, when adapting them to specific domains, we may encounter a multi-stage continuous learning scenario, especially in cases where domain knowledge evolves rapidly.This issue severe…

Cited by 1SourcePDFScholar
2025

Multilingual Collaborative Defense for Large Language Models

EMNLP 2025

The robustness and security of Large Language Models (LLMs) face increasing threats, especially in multilingual settings. A notable vulnerability is “jailbreaking” via translating harmful queries into rare or underrepresented languages, which often bypasses existing safeguards. In this work, we prop

2024

DoRA: Enhancing Parameter-Efficient Fine-Tuning with Dynamic Rank Distribution

ACL 2024long

Fine-tuning large-scale pre-trained models is inherently a resource-intensive task. While it can enhance the capabilities of the model, it also incurs substantial computational costs, posing challenges to the practical application of downstream tasks. Existing parameter-efficient fine-tuning (PEFT)…

2023

Novel Slot Detection With an Incremental Setting

EMNLP 2023long findings

Current dialogue systems face diverse user requests and rapid change domains, making quickly adapt to scenarios with previous unseen slot types become a major challenge. Recently, researchers have introduced novel slot detection (NSD) to discover potential new types. However, dialogue system with NS…

Cited by 0SourceScholar