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Pengpeng Zeng

9 accepted papers

2026

Cross-Tactile Sensor Representation Learning

ICML 2026poster

Visuo-tactile sensors have been widely adopted in robotic manipulation. However, inherent heterogeneity in sensor designs hinders the learning of unified tactile representations in cross-sensor scenarios. Existing methods that focus on reconstruction or task-specific supervision often fail to captur…

Cited by 0SourceScholar
2026

JANUS-LORA: A Balanced Low-Rank Adaptation for Continual Learning

ICML 2026poster

Low-Rank Adaptation (LoRA) has emerged as a promising paradigm for Continual Learning. It independently updates its low-rank factors ($A$ and $B$), creating a composite update to the full weight matrix through their interaction. To prevent catastrophic forgetting, this update should remain orthogona…

Cited by 0SourceScholar
2026

TIMI: Training-Free Image-to-3D Multi-Instance Generation with Spatial Fidelity

ICML 2026poster

Precise spatial fidelity in Image-to-3D multi-instance generation is critical for downstream real-world applications. Recent work attempts to address this by fine-tuning pre-trained Image-to-3D (I23D) models on multi-instance datasets, which incurs substantial training overhead and struggles to guar…

Cited by 0SourceScholar
2025

MMEvol: Empowering Multimodal Large Language Models with Evol-Instruct

ACL 2025finding

The development of Multimodal Large Language Models (MLLMs) has seen significant progress, driven by increasing demands across various fields (e.g., multimodal agents, embodied intelligence). While model-driven approaches aim to enhance MLLM capabilities through diverse architectures, their performa…

Cited by 0SourcePDFScholar
2025

OmniCharacter: Towards Immersive Role-Playing Agents with Seamless Speech-Language Personality Interaction

ACL 2025long

Role-Playing Agents (RPAs), benefiting from large language models, is an emerging interactive AI system that simulates roles or characters with diverse personalities. However, existing methods primarily focus on mimicking dialogues among roles in textual form, neglecting the role’s voice traits (e.g…

2025

Skip Tuning: Pre-trained Vision-Language Models are Effective and Efficient Adapters Themselves

CVPR 2025poster

Prompt tuning (PT) has long been recognized as an effective and efficient paradigm for transferring large pre-trained vision-language models (VLMs) to downstream tasks by learning a tiny set of context vectors. Nevertheless, in this work, we reveal that freezing the parameters of VLMs during learnin…

2024

ProS: Prompting-to-simulate Generalized knowledge for Universal Cross-Domain Retrieval

CVPR 2024poster

The goal of Universal Cross-Domain Retrieval (UCDR) is to achieve robust performance in generalized test scenarios wherein data may belong to strictly unknown domains and categories during training. Recently pre-trained models with prompt tuning have shown strong generalization capabilities and atta…

2022

A Differentiable Semantic Metric Approximation in Probabilistic Embedding for Cross-Modal Retrieval

NeurIPS 2022accept

Cross-modal retrieval aims to build correspondence between multiple modalities by learning a common representation space. Typically, an image can match multiple texts semantically and vice versa, which significantly increases the difficulty of this task. To address this problem, probabilistic embedd…