Update index.md

Author: callmespring

index.md

@@ -37,7 +37,10 @@ My email <c.shi7@lse.ac.uk>. My [GitHub](https://github.com/callmespring).
 - **August 2025**: Talk @ *JSM* on **Doubly Robust Fine-Tuning**.
 - **July 2025**: RL short course at Renmin University, Shandong University, and Capital Normal University.
 - **July 2025**: Talk @ Tsinghua Statistics + AI Frontier Summit, JCSDS, SUFE. 
-- **June 2025**: Talk at ICSA, Zhuhai, China. Erhan presented our paper on **Doubly Robust Fine-Tuning** on my behalf ([Slides](https://callmespring.github.io/slides/DRPO.pdf))
+- **June 29, 2025**: Talk @ ICSA, Zhuhai, China.
+  * Erhan will present our paper on **Doubly Robust Fine-Tuning** on my behalf ([Slides](https://callmespring.github.io/slides/DRPO.pdf))
+  * Jin will present our work on LLM detection
+- **June 21, 2025**: Hongyi will present our work on LLM detection @ 狗熊会
 - **May 2025**: *Four* papers accepted to *ICML 2025*. Congratulations to all co-authors!
 - **April 2025**: Honored to receive the [Peter Gavin Hall IMS Early Career Prize](https://imstat.org/2025/05/05/chengchun-shi-wins-peter-gavin-hall-ims-early-career-prize/).