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Zhanyu Ma

3 papers indexed

arxivcs.CV2026-07-20

FlexiGrad: Adaptive Gradient Modulation for Hierarchical Fine-Grained Classification

Zilu Zhou, Dongliang Chang, Junhan Chen, Zhanyu Ma

Many fine-grained recognition tasks contain hierarchical labels such as order, family and species. Although this supervision should be beneficial, jointly optimising all levels often leads to unstable training because coarse and fine classifiers impose inconsistent gradients on t…

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arxivcs.CV2026-07-15

VGIF-Score: Interpretable and Diagnostic Evaluation of Spatio-Temporal Instruction Following in Video Generation

Songyu Xu, Xin Wang, Qiang Chen, Xinran Wang, Muxi Diao, Yuxuan Zhang, et al.

Recent video generation models (VGMs) have made substantial progress in visual fidelity, yet their ability to follow long, compositional instructions remains insufficiently evaluated. Existing evaluation protocols often rely on prompts that are short and semantically shallow, wit…

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arxivcs.CVcs.AI2026-07-02

MMBench-Live: A Continuously Evolving Benchmark for Multimodal Models

Yuanzhi Liu, Shousheng Zhao, Bo Zhou, Kongming Liang, Zhanyu Ma

Evaluation benchmarks are essential for assessing vision-language models (VLMs), but most multimodal benchmarks are static, making them vulnerable to temporal staleness, data contamination, and costly maintenance. We present MMBench-Live, a continuously evolving multimodal benchm…

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