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Wen Zhao

17 accepted papers

2026

Compose Your Policies! Improving Diffusion-based or Flow-based Robot Policies via Test-time Distribution-level Composition

ICLR 2026poster

Diffusion-based models for robotic control, including vision-language-action (VLA) and vision-action (VA) policies, have demonstrated significant capabilities. Yet their advancement is constrained by the high cost of acquiring large-scale interaction datasets. This work introduces an alternative par…

Cited by 0SourcecodeScholar
2026

SPIRA: Small Gas Pipeline Inspection Robot with Spiral Leg-Wheel Mechanism and Single Bending Joint

ICRA 2026poster

Gas pipelines damaged by aging or earthquakes need a robotic system that can quickly inspect 50-mm-diameter service lines, consisting of horizontal and vertical pipes connected by elbow joints, tees, or sockets, from the inside. However, conventional pipe inspection robots do not target 50-mm pipes …

Cited by 3SourceScholar
2026

Second Order Sliding Mode Control of Flying Wing Aircraft Based on Feedforward Neural Networks (I)

ICRA 2026poster

The flying-wing aircraft control problem is a major concern. In this paper, a new control strategy is introduced. First, a Feedforward neural network (FNN) modeling is introduced. Then, a second-order sliding mode control is applied, with the parameters generated from Deep Deterministic Policy Gradi…

Cited by 0Scholar
2025

A Collaborative Reasoning Framework Powered by Reinforcement Learning and Large Language Models for Complex Questions Answering over Knowledge Graph

COLING 2025main

Knowledge Graph Question Answering (KGQA) aims to automatically answer natural language questions by reasoning across multiple triples in knowledge graphs (KGs). Reinforcement learning (RL)-based methods are introduced to enhance model interpretability. Nevertheless, when addressing complex question…

Cited by 0SourcePDFScholar
2025

A Hierarchical Reasoning Framework for Complex Question Answering over Knowledge Graph with Reinforcement Learning

ICASSP 2025accepted

Knowledge graph question answering (KGQA) aims to answer natural language questions by reasoning across multiple triples in knowledge graphs (KGs). To enhance model interpretability, reinforcement learning based methods are introduced. However, existing methods struggle with effectively reasoning ov…

Cited by 0SourceScholar
2025

Distillation-PPO: A Novel Two-Stage Reinforcement Learning Framework for Humanoid Robot Perceptive Locomotion

IROS 2025

In recent years, humanoid robots have garnered significant attention from both academia and industry due to their high adaptability to environments and human-like characteristics. With the rapid advancement of reinforcement learning, substantial progress has been made in the walking control of human

Cited by 10SourceScholar
2025

EDGE: Efficient Data Selection for LLM Agents via Guideline Effectiveness

IJCAI 2025

Large Language Models (LLMs) have shown remarkable capabilities as AI agents. However, existing methods for enhancing LLM-agent abilities often lack a focus on data quality, leading to inefficiencies and suboptimal results in both fine-tuning and prompt engineering. To address this issue, we introdu

Cited by 0SourcePDFScholar
2025

LogRules: Enhancing Log Analysis Capability of Large Language Models through Rules

NAACL 2025findings

Currently, large language models (LLMs) have achieved impressive performance in natural language processing tasks. However, LLMs still exhibit many hallucinations when analyzing system logs, which is due to the implicit knowledge and rules in logs that LLMs cannot capture. Based on this, we propose…

Cited by 0SourcePDFScholar
2025

Mamba Policy: Towards Efficient 3D Diffusion Policy with Hybrid Selective State Models

IROS 2025

Diffusion models have been widely employed in the field of 3D manipulation due to their efficient capability to learn distributions, allowing for precise prediction of action trajectories. However, diffusion models typically rely on large parameter UNet backbones as policy networks, which can be cha

Cited by 22SourcecodeScholar
2025

Rule-KBQA: Rule-Guided Reasoning for Complex Knowledge Base Question Answering with Large Language Models

COLING 2025main

Knowledge base question answering (KBQA) is recognized as a challenging task, especially when parsing complex questions into executable logical forms. Traditional semantic parsing (SP)-based approaches exhibit inconsistent performance in handling various complex questions. As large language models (…

Cited by 0SourcePDFScholar
2024

Interactive-KBQA: Multi-Turn Interactions for Knowledge Base Question Answering with Large Language Models

ACL 2024long

This study explores the realm of knowledge base question answering (KBQA). KBQA is considered a challenging task, particularly in parsing intricate questions into executable logical forms. Traditional semantic parsing (SP)-based methods require extensive data annotations, which result in significant…

2024

Labels Need Prompts Too: Mask Matching for Natural Language Understanding Tasks

AAAI 2024technical

Textual label names (descriptions) are typically semantically rich in many natural language understanding (NLU) tasks. In this paper, we incorporate the prompting methodology, which is widely used to enrich model input, into the label side for the first time. Specifically, we propose a Mask Matching…

Cited by 2SourcePDFScholar
2024

Reinforcement Learning with Generalizable Gaussian Splatting

IROS 2024poster

An excellent representation is crucial for reinforcement learning (RL) performance, especially in vision-based reinforcement learning tasks. The quality of the environment representation directly influences the achievement of the learning task. Previous vision-based RL typically uses explicit or imp…

Cited by 2SourceScholar
2024

Whole-body Humanoid Robot Locomotion with Human Reference

IROS 2024poster

Recently, humanoid robots have made significant advances in their ability to perform challenging tasks due to the deployment of Reinforcement Learning (RL), however, the inherent complexity of humanoid robots, including the difficulty of designing complicated reward functions and training entire sop…

Cited by 33SourceScholar
2022

Frequency-Aware Contrastive Learning for Neural Machine Translation

AAAI 2022technical

Low-frequency word prediction remains a challenge in modern neural machine translation (NMT) systems. Recent adaptive training methods promote the output of infrequent words by emphasizing their weights in the overall training objectives. Despite the improved recall of low-frequency words, their pre…

2021

Point, Disambiguate and Copy: Incorporating Bilingual Dictionaries for Neural Machine Translation

ACL 2021long

This paper proposes a sophisticated neural architecture to incorporate bilingual dictionaries into Neural Machine Translation (NMT) models. By introducing three novel components: Pointer, Disambiguator, and Copier, our method PDC achieves the following merits inherently compared with previous effort…

2018

An Automatic Tracked Robot Chain System for Gas Pipeline Inspection and Maintenance Based on Wireless Relay Communication

IROS 2018poster

Gas pipeline requires to be inspected regularly for leakages caused by natural disaster. Robots are widely used for pipeline inspection since they are more convenient than manual inspection. Several problems, however, exist due to the restriction by complex pipe networks. The most significant one is…

Cited by 11SourceScholar