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Ran Cheng

26 accepted papers

2026

Dyn-VPP: Video Prediction Policy Optimization for Improved Visual Dynamics

ICML 2026poster

Video action models are a promising foundation for Vision–Language–Action (VLA) because they can learn rich visual dynamics directly from video. However, likelihood-oriented training of diffusion predictors emphasizes globally plausible futures and does not guarantee precision-critical visual dynami…

Cited by 0SourceScholar
2026

EvoGM: Learning to Merge LLMs via Evolutionary Generative Optimization

ICML 2026poster

Evolutionary model merging provides a powerful framework for the automated, training-free composition of LLMs through parameter-space search. However, existing methods predominantly rely on stochastic, hand-crafted operators that overlook the underlying performance landscape of the coefficient space…

Cited by 0SourceScholar
2026

MAR: EFFICIENT LARGE LANGUAGE MODELS VIA MODULE-AWARE ARCHITECTURE REFINEMENT

ICASSP 2026poster

Large Language Models (LLMs) excel across diverse domains but suffer from high energy costs due to quadratic attention and dense Feed-Forward Network (FFN) operations. To address these issues, we propose Module-aware Architecture Refinement (MAR), a two-stage framework that integrates State Space Mo…

Cited by 0SourcePDFScholar
2025

Beyond Traversing in a Thin Pipe: Self-Sensing Odometry of a Pipeline Robot Driven by High-Frequency Dielectric Elastomer Actuators

ICRA 2025

In this paper, we propose an earthworm-inspired miniature pipeline robot capable of self-sensing odometry. The robot features a dielectric elastomer actuator as its elongation body and two specially designed passive anchors to achieve unidirectional motion without slipping. The odometry was achieved

Cited by 1SourceScholar
2025

CoA-VLA: Improving Vision-Language-Action Models via Visual-Text Chain-of-Affordance

ICCV 2025poster

Robot foundation models, particularly Vision-Language-Action (VLA) models, have garnered significant attention for their ability to enhance robot policy learning, greatly improving robot's generalization and robustness. OpenAI's recent model, O1, showcased impressive capabilities in solving complex…

Cited by 0SourcePDFScholar
2025

Diversity-Aware Policy Optimization for Large Language Model Reasoning

NeurIPS 2025spotlight

The reasoning capabilities of large language models (LLMs) have advanced rapidly, particularly following the release of DeepSeek-R1, which has inspired a surge of research into data quality and reinforcement learning (RL) algorithms. Despite the pivotal role diversity plays in RL, its influence on L…

Cited by 0SourceScholar
2025

MetaBox-v2: A Unified Benchmark Platform for Meta-Black-Box Optimization

NeurIPS 2025poster

Meta-Black-Box Optimization (MetaBBO) streamlines the automation of optimization algorithm design through meta-learning. It typically employs a bi-level structure: the meta-level policy undergoes meta-training to reduce the manual effort required in developing algorithms for low-level optimization t…

Cited by 0SourcecodeScholar
2025

Scaling Diffusion Policy in Transformer to 1 Billion Parameters for Robotic Manipulation

ICRA 2025

Diffusion Policy is a powerful technique tool for learning end-to-end visuomotor robot control. It is expected that Diffusion Policy possesses scalability, a key attribute for deep neural networks, typically suggesting that increasing model size would lead to enhanced performance. However, our obser

Cited by 45SourcecodeScholar
2025

TinyVLA: Toward Fast, Data-Efficient Vision-Language-Action Models for Robotic Manipulation

RA-L 2025

Vision-Language-Action (VLA) models have shown remarkable potential in visuomotor control and instruction comprehension through end-to-end learning processes. However, current VLA models face significant challenges: they are slow during inference and require extensive pre-training on large amounts o

Cited by 303SourceScholar
2024

MV-ROPE: Multi-view Constraints for Robust Category-level Object Pose and Size Estimation

IROS 2024poster

Recently there has been a growing interest in category-level object pose and size estimation, and prevailing methods commonly rely on single view RGB-D images. However, one disadvantage of such methods is that they require accurate depth maps which cannot be produced by consumer-grade sensors. Furth…

Cited by 2SourceScholar
2023

Accelerating Vision-Language Pretraining With Free Language Modeling

CVPR 2023poster

The state of the arts in vision-language pretraining (VLP) achieves exemplary performance but suffers from high training costs resulting from slow convergence and long training time, especially on large-scale web datasets. An essential obstacle to training efficiency lies in the entangled prediction…

2023

Mitigating Task Interference in Multi-Task Learning via Explicit Task Routing With Non-Learnable Primitives

CVPR 2023poster

Multi-task learning (MTL) seeks to learn a single model to accomplish multiple tasks by leveraging shared information among the tasks. Existing MTL models, however, have been known to suffer from negative interference among tasks. Efforts to mitigate task interference have focused on either loss/gra…

Cited by 19SourcePDFScholar
2023

Scale Jump-Aware Pose Graph Relaxation for Monocular SLAM with Re-Initializations

IROS 2023poster

Pose graph relaxation has become an indispensable addition to SLAM enabling efficient global registration of sensor reference frames under the objective of satisfying pair-wise relative transformation constraints. The latter may be given by incremental motion estimation or global place recognition.…

Cited by 0SourceScholar
2022

VLMixer: Unpaired Vision-Language Pre-training via Cross-Modal CutMix

ICML 2022spotlight

Existing vision-language pre-training (VLP) methods primarily rely on paired image-text datasets, which are either annotated by enormous human labors or crawled from the internet followed by elaborate data cleaning techniques. To reduce the dependency on well-aligned image-text pairs, it is promisin…

2021

(AF)2-S3Net: Attentive Feature Fusion With Adaptive Feature Selection for Sparse Semantic Segmentation Network

CVPR 2021poster

Autonomous robotic systems and self driving cars rely on accurate perception of their surroundings as the safety of the passengers and pedestrians is the top priority. Semantic segmentation is one the essential components of environmental perception that provides semantic information of the scene. R…

Cited by 300PDFScholar
2021

End-to-End Dense Video Captioning With Parallel Decoding

ICCV 2021poster

Dense video captioning aims to generate multiple associated captions with their temporal locations from the video. Previous methods follow a sophisticated "localize-then-describe" scheme, which heavily relies on numerous hand-crafted components. In this paper, we proposed a simple yet effective fram…

Cited by 238PDFcodeScholar
2021

GP-S3Net: Graph-Based Panoptic Sparse Semantic Segmentation Network

ICCV 2021poster

Panoptic segmentation as an integrated task of both static environmental understanding and dynamic object identification, has recently begun to receive broad research interest. In this paper, we propose a new computationally efficient LiDAR based panoptic segmentation framework, called GP-S3Net. GP-…

Cited by 63PDFScholar
2021

Latent Attention Augmentation for Robust Autonomous Driving Policies

IROS 2021poster

Model-free reinforcement learning has become a viable approach for vision-based robot control. However, sample complexity and adaptability to domain shifts remain persistent challenges when operating in high-dimensional observation spaces (images, LiDAR), such as those that are involved in autonomou…

Cited by 4SourceScholar
2021

Lite-HDSeg: LiDAR Semantic Segmentation Using Lite Harmonic Dense Convolutions

ICRA 2021poster

Autonomous driving vehicles and robotic systems rely on accurate perception of their surroundings. Scene understanding is one of the crucial components of perception modules. Among all available sensors, LiDARs are one of the essential sensing modalities of autonomous driving systems due to their ac…

Cited by 66SourceScholar
2021

Revisiting Self-training for Few-shot Learning of Language Model

EMNLP 2021main

As unlabeled data carry rich task-relevant information, they are proven useful for few-shot learning of language model. The question is how to effectively make use of such data. In this work, we revisit the self-training technique for language model fine-tuning and present a state-of-the-art prompt-…

2020

S3CNet: A Sparse Semantic Scene Completion Network for LiDAR Point Clouds

CoRL 2020

With the increasing reliance of self-driving and similar robotic systems on robust 3D vision, the processing of LiDAR scans with deep convolutional neural networks has become a trend in academia and industry alike. Prior attempts on the challenging Semantic Scene Completion task - which entails the

Cited by 0SourcePDFScholar
2018

Vision-Based Autonomous Underwater Swimming in Dense Coral for Combined Collision Avoidance and Target Selection

IROS 2018poster

We address the problem of learning vision-based, collision-avoiding, and target-selecting controllers in 3D, specifically in underwater environments densely populated with coral reefs. Using a highly maneuverable, dynamic, six-legged (or flippered) vehicle to swim underwater, we exploit real time vi…

Cited by 53SourceScholar