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Weijie Li

15 accepted papers

2026

Step-GRPO: Enhancing Reasoning Quality and Efficiency via Structured PRM-Based Reinforcement Learning

AAAI 2026technical

Large reasoning models (LRMs) improve performance at test time by thinking longer, but this often leads to overthinking and high computational cost. To address this, recent reinforcement learning (RL) methods adopt outcome-level rewards, such as rule- or prompt-based signals, that favor shorter corr

Cited by 0SourcePDFScholar
2025

Topology-of-Question-Decomposition: Enhancing Large Language Models with Information Retrieval for Knowledge-Intensive Tasks

COLING 2025main

Large language models (LLMs) are increasingly deployed for general problem-solving across various domains yet remain constrained to chaining immediate reasoning steps and depending solely on parametric knowledge. Integrating an information retrieval system directly into the reasoning process of LLMs…

2025

When Pixel Difference Patterns Meet ViT: PiDiViT for Few-Shot Object Detection

ICCV 2025poster

Few-shot object detection aims to detect novel classes with limited samples. Recent methods have leveraged the rich semantic representations of pretrained vision transformer (ViT) to overcome the limitations of model fine-tuning, thereby improving the performance on novel classes. However, existing…

2024

A Category Agnostic Model for Visual Rearrangment

CVPR 2024poster

This paper presents a novel category agnostic model for visual rearrangement task which can help an embodied agent to physically recover the shuffled scene configuration without any category concepts to the goal configuration. Previous methods usually follow a similar architecture completing the rea…

Cited by 2SourcePDFScholar
2024

Giving Control Back to Models: Enabling Offensive Language Detection Models to Autonomously Identify and Mitigate Biases

EMNLP 2024finding

The rapid development of social media has led to an increase in online harassment and offensive speech, posing significant challenges for effective content moderation. Existing automated detection models often exhibit a bias towards predicting offensive speech based on specific vocabulary, which not…

Cited by 0SourcePDFScholar
2024

SARDet-100K: Towards Open-Source Benchmark and ToolKit for Large-Scale SAR Object Detection

NeurIPS 2024spotlight

Synthetic Aperture Radar (SAR) object detection has gained significant attention recently due to its irreplaceable all-weather imaging capabilities. However, this research field suffers from both limited public datasets (mostly comprising <2K images with only mono-category objects) and inaccessible…

2023

Layout-Based Causal Inference for Object Navigation

CVPR 2023poster

Previous works for ObjectNav task attempt to learn the association (e.g. relation graph) between the visual inputs and the goal during training. Such association contains the prior knowledge of navigating in training environments, which is denoted as the experience. The experience performs a positiv…

Cited by 38SourcePDFScholar
2022

Generative Meta-Adversarial Network for Unseen Object Navigation

ECCV 2022poster

"Object navigation is a task to let the agent navigate to a target object. Prevailing works attempt to expand navigation ability in new environments and achieve reasonable performance on the seen object categories that have been observed in training environments. However, this setting is somewhat li…

2022

Kinematic Motion Retargeting via Neural Latent Optimization for Learning Sign Language

RA-L 2022

Motion retargeting from a human demonstration to a robot is an effective way to reduce the professional requirements and workload of robot programming, but faces the challenges resulting from the differences between humans and robots. Traditional optimization-based methods are time-consuming and rel

Cited by 31SourceScholar
2022

STAR: SQL Guided Pre-Training for Context-dependent Text-to-SQL Parsing

EMNLP 2022finding

In this paper, we propose a novel SQL guided pre-training framework STAR for context-dependent text-to-SQL parsing, which leverages contextual information to enrich natural language (NL) utterance and table schema representations for text-to-SQL conversations. Concretely, we propose two novel pre-tr…

2021

CORAL: Colored structural representation for bi-modal place recognition

IROS 2021poster

Place recognition is indispensable for a drift-free localization system. Due to the variations of the environment, place recognition using single-modality has limitations. In this paper, we propose a bi-modal place recognition method, which can extract a compound global descriptor from the two modal…

Cited by 36SourceScholar
2021

Dynamic Movement Primitive based Motion Retargeting for Dual-Arm Sign Language Motions

ICRA 2021poster

We aim to develop an efficient programming method for equipping service robots with the skill of performing sign language motions. This paper addresses the problem of transferring complex dual-arm sign language motions characterized by the coordination among arms and hands from human to robot, which…

Cited by 26SourceScholar
2021

Hierarchical Object-to-Zone Graph for Object Navigation

ICCV 2021poster

The goal of object navigation is to reach the expected objects according to visual information in the unseen environments. Previous works usually implement deep models to train an agent to predict actions in real-time. However, in the unseen environment, when the target object is not in egocentric v…

Cited by 85PDFcodeScholar