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Juntian Zhang

4 accepted papers

2026

ViPER: Empowering the Self-Evolution of Visual Perception Abilities in Vision-Language Models

ICLR 2026poster

The limited capacity for fine-grained visual perception presents a critical bottleneck for Vision-Language Models (VLMs) in real-world applications. Addressing this is challenging due to the scarcity of high-quality data and the limitations of existing methods: supervised fine-tuning (SFT) often com…

Cited by 0SourcecodeScholar
2025

Beyond Static Testbeds: An Interaction-Centric Agent Simulation Platform for Dynamic Recommender Systems

EMNLP 2025

Evaluating and iterating upon recommender systems is crucial, yet traditional A/B testing is resource-intensive, and offline methods struggle with dynamic user-platform interactions. While agent-based simulation is promising, existing platforms often lack a mechanism for user actions to dynamically

2025

The Stepwise Deception: Simulating the Evolution from True News to Fake News with LLM Agents

EMNLP 2025

With the growing spread of misinformation online, understanding how true news evolves into fake news has become crucial for early detection and prevention. However, previous research has often assumed fake news inherently exists rather than exploring its gradual formation. To address this gap, we pr

2025

Weaving Context Across Images: Improving Vision-Language Models through Focus-Centric Visual Chains

ACL 2025long

Vision-language models (VLMs) achieve remarkable success in single-image tasks. However, real-world scenarios often involve intricate multi-image inputs, leading to a notable performance decline as models struggle to disentangle critical information scattered across complex visual features. In this…

Cited by 0SourcePDFScholar