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Wenpeng Xing

11 accepted papers

2026

ICPO: Illocution-Calibrated Policy Optimization for Multi-Turn Conversation

ICASSP 2026poster

Large Language Models (LLMs) in multi-turn conversations often suffer from a ``lost-in-conversation'' phenomenon, where they struggle to recover from early incorrect assumptions, particularly when users provide ambiguous initial instructions. We find that standard post-training techniques like Reinf…

Cited by 0SourcePDFScholar
2026

KINGUARD: HIERARCHICAL KINSHIP-AWARE FINGERPRINTING TO DEFEND AGAINST LARGE LANGUAGE MODEL STEALING

ICASSP 2026poster

Protecting the intellectual property of large language models requires robust ownership verification. Conventional backdoor fingerprinting, however, is flawed by a stealth-robustness paradox: to be robust, these methods force models to memorize fixed responses to high-perplexity triggers, but this t…

Cited by 0SourcePDFScholar
2026

Spectral Logit Sculpting: Adaptive Low-Rank Logit Transformation for Controlled Text Generation

ICASSP 2026poster

Entropy-based inference methods have gained traction for improving the reliability of Large Language Models (LLMs). However, many existing approaches, such as entropy minimization techniques, suffer from high computational overhead and fail to leverage historical token context effectively. To addres…

Cited by 0SourcePDFScholar
2025

Distill To Detect: Amplifying Anomalies in Backdoor Models through Knowledge Distillation

ICASSP 2025accepted

Backdoor attacks represent a significant threat to the security of deep learning models. Due to the stealthiness of backdoor attacks, effectively detecting whether a model has been compromised by such attacks remains a major challenge. Previous backdoor detection methods either rely on backdoor data…

Cited by 0SourceScholar
2025

EverTracer: Hunting Stolen Large Language Models via Stealthy and Robust Probabilistic Fingerprint

EMNLP 2025

The proliferation of large language models (LLMs) has intensified concerns over model theft and license violations, necessitating robust and stealthy ownership verification. Existing fingerprinting methods either require impractical white-box access or introduce detectable statistical anomalies. We

2025

IDE: A Multi-Agent-Driven Iterative Framework for Dynamic Evaluation of LLMs

ICASSP 2025accepted

With the widespread use of large language models (LLMs) in natural language processing, traditional evaluation methods based on static datasets have become inadequate to fully capture their performance and generalization capabilities. To address this challenge, we propose an Iterative Dynamic Evalua…

Cited by 0SourceScholar
2025

MEraser: An Effective Fingerprint Erasure Approach for Large Language Models

ACL 2025long

Large Language Models (LLMs) have become increasingly prevalent across various sectors, raising critical concerns about model ownership and intellectual property protection. Although backdoor-based fingerprinting has emerged as a promising solution for model authentication, effective attacks for rem…

2025

NCDI-Diffusion: Neural Contextual and Directional Inversion for Novel View Synthesis through Diffusion Models

ICASSP 2025accepted

Novel view synthesis typically requires a comprehensive set of multi-view images for either image-based rendering or scene representation-based optimization. However, achieving high-fidelity novel view rendering often demands a large number of images. To address this limitation, we propose NCDI-Diff…

Cited by 0SourceScholar
2025

PREE: Towards Harmless and Adaptive Fingerprint Editing in Large Language Models via Knowledge Prefix Enhancement

EMNLP 2025

Addressing the intellectual property protection challenges in commercial deployment of large language models (LLMs), existing black-box fingerprinting techniques face dual challenges from incremental fine-tuning erasure and feature-space defense due to their reliance on overfitting high-perplexity t

2022

Temporal-MPI: Enabling Multi-Plane Images for Dynamic Scene Modelling via Temporal Basis Learning

ECCV 2022poster

"Novel view synthesis of static scenes has achieved remarkable advancements in producing photo-realistic results. However, key challenges remain for immersive rendering of dynamic scenes. One of the seminal image-based rendering method, the multi-plane image (MPI), produces high novel-view synthesis…

Cited by 15SourcePDFScholar