Jane (Jian) Li

Younger trees in the upper canopy are more sensitive but also more resilient to drought

Nature Climate Change · 2022 · 98 citations

Tropical volcanism enhanced the East Asian summer monsoon during the last millennium

Nature Communications · 2022 · 82 citations

Extreme East Asian summer monsoon (EASM) rainfall frequently induces floods that threaten millions of people, and has been generally attributed to internal climate variability. In contrast to the hydrological weakening theory of volcanic eruptions, here we present convergent empirical and modeling evidence for significant intensification of EASM rainfall in response to strong tropical volcanic eruptions. Our multi-proxy analyses show a significantly increased EASM in the first summer after tropi…

TWIST: Text-encoder Weight-editing for Inserting Secret Trojans in Text-to-Image Models

2025-01-01

Text-to-image (T2I) models excel at generating high-quality images from text via powerful text encoders, but training these encoders demands substantial computational resources.Consequently, many users seek pre-trained text encoders from model plugin-sharing platforms like Civitai and Hugging Face, which introduces an underexplored threat: the potential for adversaries to embed Trojans within these plugins.Existing Trojan attacks often require extensive training data and suffer from poor general…

On $p$-parts of conjugacy class sizes and the index of the $p$-core

ArXiv.org · 2025-10-18

For a prime $p$ and an arbitrary finite group $G$, we show that if $p^{2}$ does not divide the size of each conjugacy class of \emph{$p$-regular} element (element of order not divisible by $p$) in $G$, then the largest power of $p$ dividing the index $|G:\mathbf{O}_{p}(G)|$ is at most $p^{2}$.