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Hao Luan

7 accepted papers

2026

Projected Coupled Diffusion for Test-Time Constrained Joint Generation

ICLR 2026poster

Modifications to test-time sampling have emerged as an important extension to diffusion algorithms, with the goal of biasing the generative process to achieve a given objective without having to retrain the entire diffusion model. However, generating jointly correlated samples from multiple pre-trai…

Cited by 0SourceScholar
2025

Diffusion Meets Options: Hierarchical Generative Skill Composition for Temporally-Extended Tasks

ICRA 2025

Safe and successful deployment of robots requires not only the ability to generate complex plans but also the capacity to frequently replan and correct execution errors. This paper addresses the challenge of long-horizon trajectory planning under temporally extended objectives in a receding horizon

Cited by 9SourceScholar
2025

RevPRAG: Revealing Poisoning Attacks in Retrieval-Augmented Generation through LLM Activation Analysis

EMNLP 2025

Retrieval-Augmented Generation (RAG) enriches the input to LLMs by retrieving information from the relevant knowledge database, enabling them to produce responses that are more accurate and contextually appropriate. It is worth noting that the knowledge database, being sourced from publicly availabl

Cited by 0SourcePDFScholar
2024

LTLDoG: Satisfying Temporally-Extended Symbolic Constraints for Safe Diffusion-Based Planning

RA-L 2024

Operating effectively in complex environments while complying with specified constraints is crucial for the safe and successful deployment of robots that interact with and operate around people. In this letter, we focus on generating long-horizon trajectories that adhere to static and temporally-ext

Cited by 14SourcecodeScholar
2023

Collaborative Trolley Transportation System with Autonomous Nonholonomic Robots

IROS 2023poster

Cooperative object transportation using multiple robots has been intensively studied in the control and robotics literature, but most approaches are either only applicable to omnidirectional robots or lack a complete navigation and decision-making framework that operates in real time. This paper pre…

Cited by 10SourceScholar
2022

Robotic Autonomous Trolley Collection with Progressive Perception and Nonlinear Model Predictive Control

ICRA 2022poster

Autonomous mobile manipulation robots that can collect trolleys are widely used to liberate human resources and fight epidemics. Most prior robotic trolley collection solutions only detect trolleys with 2D poses or are merely based on spe-cific marks and lack the formal design of planning algorithms…

Cited by 20SourceScholar