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Hejia Geng

3 accepted papers

2026

Beyond Magic Words: Sharpness-Aware Prompt Evolving for Robust Large Language Models with TARE

ICLR 2026poster

The performance of Large Language Models (LLMs) hinges on carefully engineered prompts. However, prevailing prompt optimization methods, ranging from heuristic edits and reinforcement learning to evolutionary search, primarily target point-wise accuracy. They seldom enforce paraphrase invariance or…

Cited by 0SourceScholar
2026

Khan-GCL: Kolmogorov–Arnold Network Based Graph Contrastive Learning with Hard Negatives

AAAI 2026technical

Graph contrastive learning (GCL) has demonstrated great promise for learning generalizable graph representations from unlabeled data. However, conventional GCL approaches face two critical limitations: (1) the restricted expressive capacity of multilayer perceptron (MLP) based encoders, and (2) subo

Cited by 0SourcePDFScholar
2025

ReSo: A Reward-driven Self-organizing LLM-based Multi-Agent System for Reasoning Tasks

EMNLP 2025

Multi-agent systems have emerged as a promising approach for enhancing the reasoning capabilities of large language models in complex problem-solving. However, current MAS frameworks are limited by poor flexibility and scalability, with underdeveloped optimization strategies. To address these challe