AI & ML interests

None defined yet.

Recent Activity

Jiaqi-hkustĀ 
posted an update about 9 hours ago
view post
Post
406
🧠 Remember-R1: Our fix for MLLMs forgetting the image during long reasoning

We noticed a frustrating problem: when multimodal models reason over long chains, they gradually stop looking at the image—and start hallucinating based on their own text.

So we built Remember‑R1, a simple RL framework that directly supervises visual attention on the original reasoning trajectory—no inference overhead, no proxy tasks.

We use three complementary rewards: coverage, persistence, and focus. They encourage the model to keep attending to relevant visual evidence even in later reasoning steps.

Results across 7 benchmarks and 2 model sizes: better reasoning, and—more importantly—visual attention decays much more slowly during generation.

No extra cost at inference, just cleaner supervision where it counts.

šŸ“„ Paper: https://arxiv.org/abs/2608.01314
šŸ’» Code: https://github.com/Ch921-cell/Remember-R1

Happy to answer any questions and receive feedback!

#MultimodalAI #RL #MLLM #CoT #VisualReasoning
Jiaqi-hkustĀ 
posted an update 18 days ago
view post
Post
3080
IQA-T1: Evidence‑Based Image Quality Assessment with MLLMs

Most MLLMs are blind to low‑level degradations—noise, blur, compression artifacts look the same as clean images in their internal representations. That leads to quality scores based on semantic ā€œgut feelingā€ rather than real perceptual evidence.

IQA-T1 changes that. We equip the model with a toolbox of 15 perceptual tools (noise residual maps, Fourier spectra, gradient maps, etc.) that generate structured visual evidence on demand. The model learns how to use tools via supervised fine‑tuning on our Q‑Tool dataset (11k evidence‑grounded reasoning chains), and when to call them via GRPO reinforcement learning that balances accuracy, tool count, and redundancy.

The result: SOTA performance across 7 benchmarks (avg PLCC 0.795), using only 2.34 tools per image on average. Every predicted score is now interpretable and backed by hard visual evidence.

All code, weights, dataset, and demo are open. Check them out and give it a spin!

šŸ“„ arxiv.org/abs/2607.12375v1
šŸ’» github.com/zibuyu-02/IQA-T1
šŸ¤— model/data: huggingface.co/zibuyu-02/IQA-T1
šŸŽ® demo: huggingface.co/spaces/Jiaqi-hkust/IQA-T1
zhouxiangxinĀ 
authored 11 papers 20 days ago
Jiaqi-hkustĀ 
posted an update about 2 months ago
view post
Post
3993
šŸš€ Introducing Robust-U1: Teaching MLLMs to Self-Recover Corrupted Visual Content

Multimodal Large Language Models (MLLMs) have achieved impressive visual understanding, yet they remain highly brittle under real-world corruptions—noise, blur, compression artifacts, adverse weather.

Standard MLLMs suffer dramatic performance drops, and existing robustness solutions come with fundamental limits: black‑box feature alignment lacks interpretability, while white‑box text reasoning cannot restore the lost pixel‑level visual details. This raises a crucial question:

🧐 Can MLLMs recover corrupted visual content by themselves?

If the answer is yes, we can move beyond merely ā€œcompensatingā€ for corruption and instead build a more intrinsic, generalizable form of resilience. Robust-U1 is our answer to that question.

šŸ’” Paper: https://arxiv.org/abs/2606.08063
šŸ”— Code: github.com/jqtangust/Robust-U1
šŸŒ Demo: Jiaqi-hkust/Robust-U1

  • 1 reply
Ā·