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Jiyang Zheng

5 accepted papers

2026

Mitigating Mismatch within Reference-based Preference Optimization

ICLR 2026poster

Direct Preference Optimization (DPO) has become the de facto standard for offline preference alignment of large language models, but its reliance on a reference policy introduces a critical tension. DPO weighs each update relative to a reference, which stabilizes the training by regularizing the up…

Cited by 0SourceScholar
2025

Aligning What Matters: Masked Latent Adaptation for Text-to-Audio-Video Generation

NeurIPS 2025poster

Text-to-Audio-Video (T2AV) generation aims to produce temporally and semantically aligned visual and auditory content from natural language descriptions. While recent progress in text-to-audio and text-to-video models has improved generation quality within each modality, jointly modeling them remain…

Cited by 0SourceScholar
2025

Chain-of-Focus Prompting: Leveraging Sequential Visual Cues to Prompt Large Autoregressive Vision Models

ICLR 2025poster

In-context learning (ICL) has revolutionized natural language processing by enabling models to adapt to diverse tasks with only a few illustrative examples. However, the exploration of ICL within the field of computer vision remains limited. Inspired by Chain-of-Thought (CoT) prompting in the langua…

Cited by 0SourcePDFScholar
2025

Ranked from Within: Ranking Large Multimodal Models Without Labels

ICML 2025poster

Can the relative performance of a pre-trained large multimodal model (LMM) be predicted without access to labels? As LMMs proliferate, it becomes increasingly important to develop efficient ways to choose between them when faced with new data or tasks. The usual approach does the equivalent of givin…

Cited by 0SourcePDFScholar
2024

Enhancing Contrastive Learning for Ordinal Regression via Ordinal Content Preserved Data Augmentation

ICLR 2024poster

Contrastive learning, while highly effective for a lot of tasks, shows limited improvement in ordinal regression. We find that the limitation comes from the predefined strong data augmentations employed in contrastive learning. Intuitively, for ordinal regression datasets, the discriminative inform…

Cited by 9SourcePDFScholar