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Yufei He

11 accepted papers

2026

AliMark: Enhancing Robustness of Sentence-Level Watermarks Against Text Paraphrasing

ICML 2026poster

Existing sentence-level watermarking methods enhance robustness to paraphrasing by anchoring watermarks in sentence semantics. However, their prefix-based designs remain vulnerable to structural perturbations, such as sentence splitting and merging, which commonly arise under strong paraphrasers lik…

Cited by 0SourceScholar
2026

Echoless Label-Based Pre-computation for Memory-Efficient Heterogeneous Graph Learning

AAAI 2026technical

Heterogeneous Graph Neural Networks (HGNNs) are widely used for deep learning on heterogeneous graphs. Typical end-to-end HGNNs require repetitive message passing during training, limiting efficiency for large-scale real-world graphs. Pre-computation-based HGNNs address this by performing message pa

Cited by 0SourcePDFScholar
2026

EvoTest: Evolutionary Test-Time Learning for Self-Improving Agentic Systems

ICLR 2026poster

A fundamental limitation of current AI agents is their inability to learn complex skills on the fly at test time, often behaving like “clever but clueless interns” in novel environments. This severely limits their practical utility. To systematically measure and drive progress on this challenge, we…

Cited by 0SourcecodeScholar
2026

Just-In-Time Reinforcement Learning: Continual Learning in LLM Agents Without Gradient Updates

ICML 2026spotlight

While Large Language Model (LLM) agents excel at general tasks, they inherently struggle with continual adaptation due to the frozen weights after deployment. Conventional reinforcement learning (RL) offers a solution but incurs prohibitive computational costs and the risk of catastrophic forgetting…

Cited by 0SourceScholar
2026

NTSFormer: A Self-Teaching Graph Transformer for Multimodal Isolated Cold-Start Node Classification

AAAI 2026technical

Isolated cold-start node classification on multimodal graphs is challenging because such nodes have no edges and often have missing modalities (e.g., absent text or image features). Existing methods address structural isolation by degrading graph learning models to multilayer perceptrons (MLPs) for

Cited by 0SourcePDFScholar
2025

Can Indirect Prompt Injection Attacks Be Detected and Removed?

ACL 2025long

Prompt injection attacks manipulate large language models (LLMs) by misleading them to deviate from the original input instructions and execute maliciously injected instructions, because of their instruction-following capabilities and inability to distinguish between the original input instructions…

2025

Can Knowledge Graphs Make Large Language Models More Trustworthy? An Empirical Study Over Open-ended Question Answering

ACL 2025long

Recent works integrating Knowledge Graphs (KGs) have shown promising improvements in enhancing the reasoning capabilities of Large Language Models (LLMs). However, existing benchmarks primarily focus on closed-ended tasks, leaving a gap in evaluating performance on more complex, real-world scenarios…

Cited by 0SourcePDFScholar
2025

FiDeLiS: Faithful Reasoning in Large Language Models for Knowledge Graph Question Answering

ACL 2025finding

Large Language Models (LLMs) are often challenged by generating erroneous or hallucinated responses, especially in complex reasoning tasks. Leveraging Knowledge Graphs (KGs) as external knowledge sources has emerged as a viable solution. However, existing KG-enhanced methods, either retrieval-based…

2025

Gaze-Guided 3D Hand Motion Prediction for Detecting Intent in Egocentric Grasping Tasks

IROS 2025

Human intention detection with hand motion prediction is critical to drive the upper-extremity assistive robots in neurorehabilitation applications. However, the traditional methods relying on physiological signal measurement are restrictive and often lack environmental context. We propose a novel a

Cited by 2SourceScholar
2025

MLR-Bench: Evaluating AI Agents on Open-Ended Machine Learning Research

NeurIPS 2025poster

Recent advancements in AI agents have demonstrated their growing potential to drive and support scientific discovery. In this work, we introduce MLR-Bench, a comprehensive benchmark for evaluating AI agents on open-ended machine learning research. MLR-Bench includes three key components: (1) 201 res…

Cited by 0SourcecodeScholar