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Pengxiang Lan

3 accepted papers

2025

EPT: Efficient Prompt Tuning by Multi-Space Projection and Prompt Fusion

AAAI 2025technical

Prompt tuning is a promising method to fine-tune a pre-trained language model without retraining its large-scale parameters. Instead, it attaches a soft prompt to the input text, whereby downstream tasks can be well adapted by merely learning the embeddings of prompt tokens. Nevertheless, existing m…

Cited by 0SourcePDFScholar
2025

Efficient and Effective Prompt Tuning via Prompt Decomposition and Compressed Outer Product

NAACL 2025long

Prompt tuning (PT) offers a cost-effective alternative to fine-tuning large-scale pre-trained language models (PLMs), requiring only a few parameters in soft prompt tokens added before the input text. However, existing PT approaches face two significant issues: i They overlook intrinsic semantic ass…

2025

Knowledge Decoupling via Orthogonal Projection for Lifelong Editing of Large Language Models

ACL 2025long

As large language models (LLMs) require continuous knowledge updates and the mitigation of hallucination issues in generated content, lifelong model editing has become a prominent research area. A mainstream knowledge editing method usually freezes LLM’s original parameters and adds extra trainable…