7 papers
PRISM: Prompt Refinement via Image-grounded Self-rewarding Mechanism for Text-to-Image Generation
Guo Tang, HongJie Luo, Tianxu Wang +2
Text-to-image generation models can synthesize high-quality images from natural language descriptions, but their performance remains highly sensitive to prompt formulation. Existin…
Decoding the spatial spread of cyanobacterial blooms in an epilimnion
Jacob Serpico, Kyunghan Choi, B. A. Zambrano-Luna +2
Cyanobacterial blooms (CBs) pose significant global challenges due to their harmful toxins and socio-economic impacts, with nutrient availability playing a key role in their growth…
The silent threat of methane to ecosystems: Insights from mechanistic modelling
Pranali Roy Chowdhury, Tianxu Wang, Shohel Ahmed +1
Over the past century, atmospheric methane levels have nearly doubled, posing a significant threat to ecosystems. Despite this, studies on its direct impact on species interactions…
Shifts of dominant personality and spatial pattern formation due to spatially heterogeneous pollution
Tianxu Wang, Jiwoon Sim, Hao Wang
Personality traits, such as boldness and shyness, play a significant role in shaping the survival strategies of animals. Industrial pollution has long posed serious threats to ecos…
Existence and asymptotic stability of a generic Lotka-Volterra system with nonlinear spatially heterogeneous cross-diffusion
Tianxu Wang, Jiwoon Sim, Hao Wang
This article considers a class of Lotka-Volterra systems with multiple nonlinear cross-diffusion, commonly known as prey-taxis models. The existence and stability of classic soluti…
Derivations of Animal Movement Models with Explicit Memory
Tianxu Wang, Kyunghan Choi, Hao Wang
Highly evolved animals continuously update their knowledge of social factors, refining movement decisions based on both historical and real-time observations. Despite its significa…
Stochastic generalized Kolmogorov systems with small diffusion: II. Explicit approximations for periodic solutions in distribution
Baoquan Zhou, Hao Wang, Tianxu Wang +1
This paper is Part II of a two-part series on coexistence states study in stochastic generalized Kolmogorov systems under small diffusion. Part I provided a complete characterizati…