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Tianyang Sun

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AAAI Conference 2026 Conference Paper

AgriEval: A Comprehensive Chinese Agricultural Benchmark for Large Language Models

  • Lian Yan
  • Haotian Wang
  • Chen Tang
  • Haifeng Liu
  • Tianyang Sun
  • Liangliang Liu
  • Yi Guan
  • Jingchi Jiang

n the agricultural domain, the deployment of large language models (LLMs) is hindered by the lack of training data and evaluation benchmarks. To mitigate this issue, we propose AgriEval, the first comprehensive Chinese agricultural benchmark with three main characteristics: (1) Comprehensive Capability Evaluation. AgriEval covers six major agriculture categories and 29 subcategories within agriculture, addressing four core cognitive scenarios—memorization, understanding, inference, and generation. (2) High-Quality Data. The dataset is curated from university-level examinations and assignments, providing a natural and robust benchmark for assessing the capacity of LLMs to apply knowledge and make expert-like decisions. (3) Diverse Formats and Extensive Scale. AgriEval comprises 14,697 multiple-choice questions and 2,167 open-ended question-and-answer questions, establishing it as the most extensive agricultural benchmark available to date. We also present comprehensive experimental results over 51 open-source and commercial LLMs. The experimental results reveal that most existing LLMs struggle to achieve 60 percent accuracy, underscoring the developmental potential in agricultural LLMs. Additionally, we conduct extensive experiments to investigate factors influencing model performance and propose strategies for enhancement.

AAAI Conference 2025 Conference Paper

MYOPIA: Protecting Face Privacy from Malicious Personalized Text-to-Image Synthesis via Unlearnable Examples

  • Zhihao Wu
  • Yushi Cheng
  • Tianyang Sun
  • Xiaoyu Ji
  • Wenyuan Xu

Personalized text-to-image synthesis models, such as DreamBooth, have demonstrated significant potential in creating lifelike images tailored to a specific individual by fine-tuning from a limited set of face images and simple prompts. However, if misused, these model could pose a serious risk of privacy infringement by generating harmful images containing violent or pornographic content. To tackle this issue, this paper introduces MYOPIA, a method that renders facial images unlearnable by incorporating error-minimizing perturbations. These meticulously designed perturbations enables the model to quickly overfit to them, resulting in a swift reduction in loss and the cessation of model fine-tuning, effectively preventing the model from capturing genuine facial features. Moreover, to ensure the imperceptibility and robustness of the perturbations, we utilize the Just-Noticeable-Difference and Expectation-of-Transformation techniques to regulate both their location and intensity. Evaluation on two face dataset, i.e., VGGFace2 and CelebA-HQ, with various model versions illustrates the effectiveness of our approach in preserving personal privacy. Furthermore, our method showcases robust transferability across diverse model versions and demonstrates resilience against various image pre-processing techniques.

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