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Jianjin Zhang

3 accepted papers

2026

RePrompt: Reasoning-Augmented Reprompting for Text-to-Image Generation via Reinforcement Learning

ICLR 2026poster

Despite recent progress in text-to-image (T2I) generation, existing models often struggle to faithfully capture user intentions from short and under-specified prompts. While prior work has attempted to enhance prompts using large language models (LLMs), these methods frequently generate stylistic or…

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2025

Alleviating Performance Degradation Caused by Out-of-Distribution Issues in Embedding-Based Retrieval

EMNLP 2025

In Embedding Based Retrieval (EBR), Approximate Nearest Neighbor (ANN) algorithms are widely adopted for efficient large-scale search. However, recent studies reveal a query out-of-distribution (OOD) issue, where query and base embeddings follow mismatched distributions, significantly degrading ANN

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2019

Memory in Memory: A Predictive Neural Network for Learning Higher-Order Non-Stationarity From Spatiotemporal Dynamics

CVPR 2019poster

Natural spatiotemporal processes can be highly non-stationary in many ways, e.g. the low-level non-stationarity such as spatial correlations or temporal dependencies of local pixel values; and the high-level variations such as the accumulation, deformation or dissipation of radar echoes in precipita…

Cited by 483PDF ↗code ↗Scholar ↗