Search Results for author: Yun Xiong

Found 22 papers, 14 papers with code

Beyond the Known: Novel Class Discovery for Open-world Graph Learning

no code implementations29 Mar 2024 Yucheng Jin, Yun Xiong, Juncheng Fang, Xixi Wu, Dongxiao He, Xing Jia, Bingchen Zhao, Philip Yu

Inter-class correlations are subsequently eliminated by the prototypical attention network, leading to distinctive representations for different classes.

Graph Learning Node Classification +1

DDIPrompt: Drug-Drug Interaction Event Prediction based on Graph Prompt Learning

no code implementations18 Feb 2024 Yingying Wang, Yun Xiong, Xixi Wu, Xiangguo Sun, Jiawei Zhang

(2) the scarcity of labeled data for rare events, which is a pervasive issue in the medical field where rare yet potentially critical interactions are often overlooked or under-studied due to limited available data.

DiffPoint: Single and Multi-view Point Cloud Reconstruction with ViT Based Diffusion Model

no code implementations17 Feb 2024 Yu Feng, Xing Shi, Mengli Cheng, Yun Xiong

As the task of 2D-to-3D reconstruction has gained significant attention in various real-world scenarios, it becomes crucial to be able to generate high-quality point clouds.

Point cloud reconstruction

Prompt Learning on Temporal Interaction Graphs

no code implementations9 Feb 2024 Xi Chen, Siwei Zhang, Yun Xiong, Xixi Wu, Jiawei Zhang, Xiangguo Sun, Yao Zhang, Feng Zhao, Yulin kang

In detail, we propose a temporal prompt generator to offer temporally-aware prompts for different tasks.

Representation Learning

Retrieval-Augmented Generation for Large Language Models: A Survey

2 code implementations18 Dec 2023 Yunfan Gao, Yun Xiong, Xinyu Gao, Kangxiang Jia, Jinliu Pan, Yuxi Bi, Yi Dai, Jiawei Sun, Meng Wang, Haofen Wang

Large Language Models (LLMs) showcase impressive capabilities but encounter challenges like hallucination, outdated knowledge, and non-transparent, untraceable reasoning processes.

Hallucination Retrieval

Graph Prompt Learning: A Comprehensive Survey and Beyond

2 code implementations28 Nov 2023 Xiangguo Sun, Jiawen Zhang, Xixi Wu, Hong Cheng, Yun Xiong, Jia Li

This paper presents a pioneering survey on the emerging domain of graph prompts in AGI, addressing key challenges and opportunities in harnessing graph data for AGI applications.

Joint Learning of Local and Global Features for Aspect-based Sentiment Classification

no code implementations2 Nov 2023 Hao Niu, Yun Xiong, Xiaosu Wang, Philip S. Yu

Furthermore, we propose a dual-level graph attention network as a global encoder by fully employing dependency tag information to capture long-distance information effectively.

Graph Attention Representation Learning +4

iLoRE: Dynamic Graph Representation with Instant Long-term Modeling and Re-occurrence Preservation

no code implementations5 Sep 2023 Siwei Zhang, Yun Xiong, Yao Zhang, Xixi Wu, Yiheng Sun, Jiawei Zhang

To overcome the indiscriminate updating issue, we introduce the Adaptive Short-term Updater module that will automatically discard the useless or noisy edges, ensuring iLoRE's effectiveness and instant ability.

Fraud Detection Representation Learning

SPEED: Streaming Partition and Parallel Acceleration for Temporal Interaction Graph Embedding

1 code implementation27 Aug 2023 Xi Chen, Yongxiang Liao, Yun Xiong, Yao Zhang, Siwei Zhang, Jiawei Zhang, Yiheng Sun

Simultaneously, resource consumption of a single-GPU can be diminished by up to 69%, thus enabling the multiple GPU-based training and acceleration encompassing millions of nodes and billions of edges.

Graph Embedding

Dual Intents Graph Modeling for User-centric Group Discovery

1 code implementation9 Aug 2023 Xixi Wu, Yun Xiong, Yao Zhang, Yizhu Jiao, Jiawei Zhang

Therefore, user-centric group discovery task, i. e., recommending groups to users can help both users' online experiences and platforms' long-term developments.

Representation Learning Self-Supervised Learning

Chat-REC: Towards Interactive and Explainable LLMs-Augmented Recommender System

no code implementations25 Mar 2023 Yunfan Gao, Tao Sheng, Youlin Xiang, Yun Xiong, Haofen Wang, Jiawei Zhang

Large language models (LLMs) have demonstrated their significant potential to be applied for addressing various application tasks.

In-Context Learning Recommendation Systems

TIGER: Temporal Interaction Graph Embedding with Restarts

1 code implementation13 Feb 2023 Yao Zhang, Yun Xiong, Yongxiang Liao, Yiheng Sun, Yucheng Jin, Xuehao Zheng, Yangyong Zhu

However, due to the entangled temporal and structural dependencies, existing methods have to process the sequence of events chronologically and consecutively to ensure node representations are up-to-date.

Graph Embedding

ConsRec: Learning Consensus Behind Interactions for Group Recommendation

1 code implementation7 Feb 2023 Xixi Wu, Yun Xiong, Yao Zhang, Yizhu Jiao, Jiawei Zhang, Yangyong Zhu, Philip S. Yu

Since group activities have become very common in daily life, there is an urgent demand for generating recommendations for a group of users, referred to as group recommendation task.

MULTI-VIEW LEARNING

RuDi: Explaining Behavior Sequence Models by Automatic Statistics Generation and Rule Distillation

1 code implementation12 Aug 2022 Yao Zhang, Yun Xiong, Yiheng Sun, Caihua Shan, Tian Lu, Hui Song, Yangyong Zhu

We propose a two-stage method, RuDi, that distills the knowledge of black-box teacher models into rule-based student models.

Fairness

ReCo: A Dataset for Residential Community Layout Planning

1 code implementation8 Jun 2022 Xi Chen, Yun Xiong, Siqi Wang, Haofen Wang, Tao Sheng, Yao Zhang, Yu Ye

In order to address the issues and advance a benchmark dataset for various intelligent spatial design and analysis applications in the development of smart city, we introduce Residential Community Layout Planning (ReCo) Dataset, which is the first and largest open-source vector dataset related to real-world community to date.

Generative Adversarial Network Layout Design

Continuous-Time Sequential Recommendation with Temporal Graph Collaborative Transformer

1 code implementation14 Aug 2021 Ziwei Fan, Zhiwei Liu, Jiawei Zhang, Yun Xiong, Lei Zheng, Philip S. Yu

Therefore, we propose to unify sequential patterns and temporal collaborative signals to improve the quality of recommendation, which is rather challenging.

Sequential Recommendation

Sub-graph Contrast for Scalable Self-Supervised Graph Representation Learning

3 code implementations22 Sep 2020 Yizhu Jiao, Yun Xiong, Jiawei Zhang, Yao Zhang, Tianqi Zhang, Yangyong Zhu

Instead of learning on the complete input graph data, with a novel data augmentation strategy, \textsc{Subg-Con} learns node representations through a contrastive loss defined based on subgraphs sampled from the original graph instead.

Data Augmentation Graph Representation Learning +2

ISTD-GCN: Iterative Spatial-Temporal Diffusion Graph Convolutional Network for Traffic Speed Forecasting

no code implementations10 Aug 2020 Yi Xie, Yun Xiong, Yangyong Zhu

Most of the existing algorithms for traffic speed forecasting split spatial features and temporal features to independent modules, and then associate information from both dimensions.

Social and Information Networks

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