Portrait of Yishan Li
NUDT · Changsha, China 国防科技大学 · 中国长沙

Ph.D. Researcher · NUDT 博士研究生 · 国防科技大学

Yishan Li李易珊 李易珊Yishan Li

College of Systems Engineering · Laboratory for Big Data and Decision 系统工程学院 · 大数据与决策实验室

I am a Ph.D. researcher at the National University of Defense Technology (NUDT), working at the College of Systems Engineering and the Laboratory for Big Data and Decision. My research asks how a visual model can keep the information that matters when the world shows it two very different views of the same thing — a visible image and a thermal one, or two crops of a scene under rotation.

我是国防科技大学博士研究生,在系统工程学院与大数据与决策实验室开展研究。我的研究关心这样一个问题:当世界把同一事物的两种不同视角交给模型——同一场景的可见光图像与红外图像,或者同一场景在旋转下的两个视图——视觉模型怎样才能保留真正有用的信息。

My work spans multi-modal representation learning and infrared–visible fusion, minimal contrastive learning, contrastive manifold autoencoders for latent diffusion, and equivariant 360° vision. I am a co-first author of CMAE (IEEE ICME 2026, Oral) and a co-author of EquiSSL (ACM TOG, SIGGRAPH Asia 2026), DAGA (NeurIPS 2026), CORE (IEEE TNNLS), SDI (Pattern Recognition), HTNet (Neural Networks) and TriCM-Net (PRCV 2026). I am also a co-inventor of two granted national invention patents.

我的研究涵盖多模态表征学习与红外—可见光融合、极简对比学习、面向潜在扩散的对比流形自编码,以及等变 360° 视觉。我是 CMAE(IEEE ICME 2026,Oral)的共同第一作者,也是 EquiSSL(ACM TOG,SIGGRAPH Asia 2026)、DAGA(NeurIPS 2026)、CORE(IEEE TNNLS)、SDI(Pattern Recognition)、HTNet(Neural Networks)与 TriCM-Net(PRCV 2026)的合作者,并作为共同发明人参与了两项已授权的国家发明专利。

Multi-modal representation learning多模态表征学习 Infrared–visible fusion红外—可见光融合 Contrastive learning对比学习 Contrastive manifold autoencoders对比流形自编码 Equivariant 360° vision等变 360° 视觉

Latest最新动态

News & milestones新闻与里程碑

2026.09

Our paper EquiSSL is accepted by ACM Transactions on Graphics (SIGGRAPH Asia 2026 Journal Track).

论文 EquiSSL 被 ACM Transactions on Graphics 接收(SIGGRAPH Asia 2026 期刊轨)。

CCF-AACM TOG
2026.09

CORE — Less Is More — is published in IEEE Transactions on Neural Networks and Learning Systems.

CORE(Less Is More)正式发表于 IEEE Transactions on Neural Networks and Learning Systems。

IEEE TNNLSCCF-B
2026.08

DAGA is accepted to NeurIPS 2026 — dynamic attention-guided adaptation for frozen self-supervised vision transformers.

DAGA 被 NeurIPS 2026 接收——面向冻结自监督视觉 Transformer 的动态注意力引导适配。

CCF-ANeurIPS
2026.07

The co-first-author paper CMAE is accepted for an Oral presentation at IEEE ICME 2026 — a contrastive manifold autoencoder for efficient latent diffusion.

共同第一作者论文 CMAE 被 IEEE ICME 2026 接收并作 Oral 报告——面向高效潜在扩散的对比流形自编码。

OralCCF-BIEEE ICME
2025.04

Two national invention patents are granted by CNIPA — CN119540575B and CN119580024B.

两项国家发明专利获国家知识产权局授权——CN119540575B 与 CN119580024B。

Patent

Selected work代表工作

Representation learning, from four angles.表征学习的四个侧面。

All publications全部论文
2026

Gauge-Equivariant Attention for Rotation-Stable 360° Scene Understanding (EquiSSL)

Tianjian Zhou, Yishan Li, Jie Jiang*, Yifei Zhang

ACM Transactions on Graphics, Vol. 45, No. 6, Article 242

CCF-A ACM TOG SIGGRAPH Asia '26

TL;DR — Removes gauge dependence from spherical attention with a parameter-free Reynolds average, cutting the 90° rotation drop from 53% to 0.8%.

一句话总结——以无参数的 Reynolds 平均消除球面注意力中的规范依赖,将 90° 旋转下的性能下降从 53% 降至 0.8%。

2026

CMAE: Contrastive Manifold Autoencoder for Efficient Latent Diffusion

Tianjian Zhou*†, Yishan Li*†, Jie Jiang†*, Liang Bai, Yifei Zhang

IEEE International Conference on Multimedia and Expo (ICME 2026)

CCF-B IEEE ICME Oral

TL;DR — Replaces VAE latents with contrastive manifold autoencoding, preserving high-frequency detail and accelerating diffusion sampling by 2.1×.

一句话总结——以对比流形自编码替代 VAE 潜空间,保留高频细节,并将扩散采样加速约 2.1 倍。

2026

DAGA: Dynamic Attention-Guided Adaptation for Self-Supervised Vision Transformers

Tianjian Zhou†, Jie Jiang†, Yishan Li*, Yifei Zhang*

Advances in Neural Information Processing Systems (NeurIPS 2026)

CCF-A NeurIPS

TL;DR — A dynamic, parameter-efficient adapter for frozen self-supervised vision transformers, improving downstream transfer.

一句话总结——面向冻结自监督视觉 Transformer 的动态参数高效适配器,提升下游迁移性能。

2026

Less Is More: Minimal Components for Contrastive Learning Delivering Superior Accuracy and Efficiency (CORE)

Tianjian Zhou, Yishan Li, Lixin Zhan, Jie Jiang*

IEEE Transactions on Neural Networks and Learning Systems

CCF-B IEEE TNNLS

TL;DR — Deconstructs contrastive learning to its minimal sufficient components; 42% less compute with higher linear-probe accuracy.

一句话总结——把对比学习拆解到最小充分组件;计算量减少 42%,线性探测精度反而更高。

* corresponding author通讯作者 · † equal contribution同等贡献

Background背景

Education & academic service教育与学术服务

Full record完整记录
  • Present至今

    Ph.D. researcher, NUDT · College of Systems Engineering; Laboratory for Big Data and Decision.

    博士研究生,国防科技大学 · 系统工程学院;大数据与决策实验室。

  • 2026

    Co-first author · CMAE, IEEE ICME 2026 (Oral).

    共同第一作者 · CMAE,IEEE ICME 2026(Oral)。

  • 2026

    Co-author · EquiSSL (ACM TOG), DAGA (NeurIPS), CORE (IEEE TNNLS), SDI (Pattern Recognition), HTNet (Neural Networks), TriCM-Net (PRCV).

    合作者 · EquiSSL(ACM TOG)、DAGA(NeurIPS)、CORE(IEEE TNNLS)、SDI(Pattern Recognition)、HTNet(Neural Networks)、TriCM-Net(PRCV)。

  • 2025

    Co-inventor · two granted CNIPA national invention patents (CN119540575B, CN119580024B).

    共同发明人 · 两项国家发明专利获授权(CN119540575B、CN119580024B)。

Collaboration合作

If a problem is close to any of these,
I would like to hear about it.
如果某个问题与这些方向相近,
欢迎来信交流。

For research collaborations, discussions of a paper, or questions about the released code, write to me at [email protected]. 无论是研究合作、论文讨论,还是关于已公开代码的问题,都欢迎写信至 [email protected]。