Search Results for author: Xiangyu Li

Found 30 papers, 13 papers with code

Adaptive Wavelet Filters as Practical Texture Feature Amplifiers for Parkinson's Disease Screening in OCT

no code implementations25 Mar 2025 Xiaoqing Zhang, Hanfeng Shi, Xiangyu Li, Haili Ye, Tao Xu, Na Li, Yan Hu, Fan Lv, Jiangfan Chen, Jiang Liu

Motivated by the above analysis, we propose a novel Adaptive Wavelet Filter (AWF) that serves as the Practical Texture Feature Amplifier to fully leverage the merits of texture features to boost the PD screening performance of DNNs with the aid of frequency domain learning.

Iterative Optimal Attention and Local Model for Single Image Rain Streak Removal

1 code implementation20 Mar 2025 Xiangyu Li, Wanshu Fan, Yue Shen, Cong Wang, Wei Wang, Xin Yang, Qiang Zhang, Dongsheng Zhou

To address these limitations, we propose an Expectation Maximization Reconstruction Transformer (EMResformer) for single image rain streak removal.

Image Reconstruction Single Image Deraining

RAD: Training an End-to-End Driving Policy via Large-Scale 3DGS-based Reinforcement Learning

no code implementations18 Feb 2025 Hao Gao, Shaoyu Chen, Bo Jiang, Bencheng Liao, Yiang Shi, Xiaoyang Guo, Yuechuan Pu, Haoran Yin, Xiangyu Li, Xinbang Zhang, Ying Zhang, Wenyu Liu, Qian Zhang, Xinggang Wang

By leveraging 3DGS techniques, we construct a photorealistic digital replica of the real physical world, enabling the AD policy to extensively explore the state space and learn to handle out-of-distribution scenarios through large-scale trial and error.

3DGS Autonomous Driving +2

HedgeAgents: A Balanced-aware Multi-agent Financial Trading System

no code implementations17 Feb 2025 Xiangyu Li, Yawen Zeng, Xiaofen Xing, Jin Xu, Xiangmin Xu

As automated trading gains traction in the financial market, algorithmic investment strategies are increasingly prominent.

MedFILIP: Medical Fine-grained Language-Image Pre-training

1 code implementation18 Jan 2025 Xinjie Liang, Xiangyu Li, Fanding Li, Jie Jiang, Qing Dong, Wei Wang, Kuanquan Wang, Suyu Dong, Gongning Luo, Shuo Li

2) A knowledge injector is proposed to construct relationships between categories and visual attributes, which help the model to make judgments based on image features, and fosters knowledge extrapolation to unfamiliar disease categories.

Contrastive Learning Diagnostic +5

Downlink Performance of Cell-Free Massive MIMO for LEO Satellite Mega-Constellation

no code implementations10 Jan 2025 Xiangyu Li, Bodong Shang

Low-earth orbit (LEO) satellite communication (SatCom) has emerged as a promising technology for improving wireless connectivity in global areas.

Point Processes

Coverage and Spectral Efficiency of NOMA-Enabled LEO Satellite Networks with Ordering Schemes

no code implementations10 Jan 2025 Xiangyu Li, Bodong Shang, Qingqing Wu, Chao Ren

Furthermore, for most SINR thresholds, the sum SE increases with the number of UTs to the highest value, whilst the maximum sum SE is obtained when there are two UTs.

Fairness

Spectrum Sharing in Satellite-Terrestrial Integrated Networks: Frameworks, Approaches, and Opportunities

no code implementations6 Jan 2025 Bodong Shang, Zheng Wang, Xiangyu Li, Chungang Yang, Chao Ren, Haijun Zhang

Furthermore, advanced SS approaches related to interference management in STINs and performance metrics of SS in STINs are introduced.

Management

Benchmarking and Understanding Compositional Relational Reasoning of LLMs

1 code implementation17 Dec 2024 Ruikang Ni, Da Xiao, Qingye Meng, Xiangyu Li, Shihui Zheng, Hongliang Liang

Compositional relational reasoning (CRR) is a hallmark of human intelligence, but we lack a clear understanding of whether and how existing transformer large language models (LLMs) can solve CRR tasks.

Benchmarking Relational Reasoning

DiffusionDrive: Truncated Diffusion Model for End-to-End Autonomous Driving

1 code implementation22 Nov 2024 Bencheng Liao, Shaoyu Chen, Haoran Yin, Bo Jiang, Cheng Wang, Sixu Yan, Xinbang Zhang, Xiangyu Li, Ying Zhang, Qian Zhang, Xinggang Wang

However, the numerous denoising steps in the robotic diffusion policy and the more dynamic, open-world nature of traffic scenes pose substantial challenges for generating diverse driving actions at a real-time speed.

Autonomous Driving Denoising

Advancing Multi-Connectivity in Satellite-Terrestrial Integrated Networks: Architectures, Challenges, and Applications

no code implementations7 Nov 2024 Xiangyu Li, Bodong Shang

Multi-connectivity (MC) in satellite-terrestrial integrated networks (STINs), included in the Third-Generation Partnership Project (3GPP) standards, is regarded as a promising technology for future networks, especially the non-terrestrial network (NTN).

A Bistatic Sensing System in Space-Air-Ground Integrated Networks

no code implementations4 Jul 2024 Xiangyu Li, Bodong Shang, Qingqing Wu

Sensing is anticipated to have wider extensions in communication systems with the boom of non-terrestrial networks (NTNs) during the past years.

RU22Fact: Optimizing Evidence for Multilingual Explainable Fact-Checking on Russia-Ukraine Conflict

1 code implementation25 Mar 2024 Yirong Zeng, Xiao Ding, Yi Zhao, Xiangyu Li, Jie Zhang, Chao Yao, Ting Liu, Bing Qin

Furthermore, we construct RU22Fact, a novel multilingual explainable fact-checking dataset on the Russia-Ukraine conflict in 2022 of 16K samples, each containing real-world claims, optimized evidence, and referenced explanation.

16k Claim Verification +5

FinReport: Explainable Stock Earnings Forecasting via News Factor Analyzing Model

1 code implementation5 Mar 2024 Xiangyu Li, Xinjie Shen, Yawen Zeng, Xiaofen Xing, Jin Xu

However, compared with financial institutions, it is not easy for ordinary investors to mine factors and analyze news.

Stock Market Prediction

Personal LLM Agents: Insights and Survey about the Capability, Efficiency and Security

2 code implementations10 Jan 2024 Yuanchun Li, Hao Wen, Weijun Wang, Xiangyu Li, Yizhen Yuan, Guohong Liu, Jiacheng Liu, Wenxing Xu, Xiang Wang, Yi Sun, Rui Kong, Yile Wang, Hanfei Geng, Jian Luan, Xuefeng Jin, Zilong Ye, Guanjing Xiong, Fan Zhang, Xiang Li, Mengwei Xu, Zhijun Li, Peng Li, Yang Liu, Ya-Qin Zhang, Yunxin Liu

Next, we discuss several key challenges to achieve intelligent, efficient and secure Personal LLM Agents, followed by a comprehensive survey of representative solutions to address these challenges.

Task Planning

An Analytical Model for Coordinated Multi-Satellite Joint Transmission System

no code implementations9 Nov 2023 Xiangyu Li, Bodong Shang

In this paper, we investigate a coordinated multi-satellite joint transmission system from a system-level perspective, where a user can be served by multiple satellites to improve its quality-of-service (QoS).

AIGC In China: Current Developments And Future Outlook

no code implementations14 Aug 2023 Xiangyu Li, Yuqing Fan, Shenghui Cheng

The increasing attention given to AI Generated Content (AIGC) has brought a profound impact on various aspects of daily life, industrial manufacturing, and the academic sector.

Precheck Sequence Based False Base Station Detection During Handover: A Physical Layer Security Scheme

no code implementations3 Jul 2023 Xiangyu Li, Kaiwen Zheng, Sidong Guo, Xiaoli Ma

The source BS compares the uploaded signal power and shifts UE to another BS that can provide the strongest signal.

Sensing-Aided Peer-to-Peer Millimeter-Wave Communication

no code implementations9 Jun 2023 Xiangyu Li, Sidong Guo, Shez Malik

One of the bottlenecks of modern communications is to enable sensing and mutual communication simultaneously without causing scheduling conflicts, and how sensing may be leveraged to help directional communication accuracy.

Scheduling

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

1 code implementation21 Oct 2022 ZeFeng Cai, Xiangyu Li, Binyuan Hui, Min Yang, Bowen Li, Binhua Li, Zheng Cao, Weijie Li, Fei Huang, Luo Si, Yongbin Li

Concretely, we propose two novel pre-training objectives which respectively explore the context-dependent interactions of NL utterances and SQL queries within each text-to-SQL conversation: (i) schema state tracking (SST) objective that tracks and explores the schema states of context-dependent SQL queries in the form of schema-states by predicting and updating the value of each schema slot during interaction; (ii) utterance dependency tracking (UDT) objective that employs weighted contrastive learning to pull together two semantically similar NL utterances and push away the representations of semantically dissimilar NL utterances within each conversation.

Contrastive Learning SQL Parsing +1

Siamese Contrastive Embedding Network for Compositional Zero-Shot Learning

1 code implementation CVPR 2022 Xiangyu Li, Xu Yang, Kun Wei, Cheng Deng, Muli Yang

Some methods recognize state and object with two trained classifiers, ignoring the impact of the interaction between object and state; the other methods try to learn the joint representation of the state-object compositions, leading to the domain gap between seen and unseen composition sets.

Compositional Zero-Shot Learning Diversity +1

DISP6D: Disentangled Implicit Shape and Pose Learning for Scalable 6D Pose Estimation

1 code implementation27 Jul 2021 Yilin Wen, Xiangyu Li, Hao Pan, Lei Yang, Zheng Wang, Taku Komura, Wenping Wang

Scalable 6D pose estimation for rigid objects from RGB images aims at handling multiple objects and generalizing to novel objects.

6D Pose Estimation Metric Learning +2

Trear: Transformer-based RGB-D Egocentric Action Recognition

no code implementations5 Jan 2021 Xiangyu Li, Yonghong Hou, Pichao Wang, Zhimin Gao, Mingliang Xu, Wanqing Li

In this paper, we propose a \textbf{Tr}ansformer-based RGB-D \textbf{e}gocentric \textbf{a}ction \textbf{r}ecognition framework, called Trear.

Action Recognition Optical Flow Estimation

Transformer Guided Geometry Model for Flow-Based Unsupervised Visual Odometry

no code implementations8 Dec 2020 Xiangyu Li, Yonghong Hou, Pichao Wang, Zhimin Gao, Mingliang Xu, Wanqing Li

In this paper, we propose a method consisting of two camera pose estimators that deal with the information from pairwise images and a short sequence of images respectively.

Visual Odometry

Iterative Spectral Method for Alternative Clustering

no code implementations8 Sep 2019 Chieh Wu, Stratis Ioannidis, Mario Sznaier, Xiangyu Li, David Kaeli, Jennifer G. Dy

Given a dataset and an existing clustering as input, alternative clustering aims to find an alternative partition.

Clustering

Multi-step Cascaded Networks for Brain Tumor Segmentation

1 code implementation16 Aug 2019 Xiangyu Li, Gongning Luo, Kuanquan Wang

Automatic brain tumor segmentation method plays an extremely important role in the whole process of brain tumor diagnosis and treatment.

Brain Tumor Segmentation Data Augmentation +2

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