Search Results for author: Xuemin Lin

Found 23 papers, 10 papers with code

MetaWeighting: Learning to Weight Tasks in Multi-Task Learning

no code implementations Findings (ACL) 2022 YUREN MAO, Zekai Wang, Weiwei Liu, Xuemin Lin, Pengtao Xie

Task weighting, which assigns weights on the including tasks during training, significantly matters the performance of Multi-task Learning (MTL); thus, recently, there has been an explosive interest in it.

Multi-Task Learning text-classification +1

Adaptive Adversarial Multi-task Representation Learning

no code implementations ICML 2020 YUREN MAO, Weiwei Liu, Xuemin Lin

Adversarial Multi-task Representation Learning (AMTRL) methods are able to boost the performance of Multi-task Representation Learning (MTRL) models.

Representation Learning

Hypergraph Self-supervised Learning with Sampling-efficient Signals

1 code implementation18 Apr 2024 Fan Li, Xiaoyang Wang, Dawei Cheng, Wenjie Zhang, Ying Zhang, Xuemin Lin

Self-supervised learning (SSL) provides a promising alternative for representation learning on hypergraphs without costly labels.

Representation Learning Self-Supervised Learning

Diffusion-based graph generative methods

1 code implementation28 Jan 2024 Hongyang Chen, Can Xu, Lingyu Zheng, Qiang Zhang, Xuemin Lin

Being the most cutting-edge generative methods, diffusion methods have shown great advances in wide generation tasks.

Denoising Graph Generation

Denoising Variational Graph of Graphs Auto-Encoder for Predicting Structured Entity Interactions

1 code implementation IEEE Transactions on Knowledge and Data Engineering 2023 PDF Han Chen, Hanchen Wang, Hongmei Chen, Ying Zhang, Wenjie Zhang, Xuemin Lin

The interactions between structured entities play important roles in a wide range of applications such as chemistry, material science, biology, and medical science.

Denoising

Unleashing the Potential of Unsupervised Deep Outlier Detection through Automated Training Stopping

1 code implementation26 May 2023 Yihong Huang, Yuang Zhang, Liping Wang, Xuemin Lin

To our knowledge, our approach is the first to enable reliable identification of the optimal training iteration during training without requiring any labels.

Outlier Detection

Unsupervised Graph Outlier Detection: Problem Revisit, New Insight, and Superior Method

1 code implementation24 Oct 2022 Yihong Huang, Liping Wang, Fan Zhang, Xuemin Lin

In addition, we observe that existing algorithms have a performance drop with the mitigated data leakage issue.

Attribute Graph Outlier Detection

Towards Higher-order Topological Consistency for Unsupervised Network Alignment

no code implementations26 Aug 2022 Qingqiang Sun, Xuemin Lin, Ying Zhang, Wenjie Zhang, Chaoqi Chen

Network alignment task, which aims to identify corresponding nodes in different networks, is of great significance for many subsequent applications.

Reinforcement Learning Based Query Vertex Ordering Model for Subgraph Matching

no code implementations25 Jan 2022 Hanchen Wang, Ying Zhang, Lu Qin, Wei Wang, Wenjie Zhang, Xuemin Lin

In recent years, many advanced techniques for query vertex ordering (i. e., matching order generation) have been proposed to reduce the unpromising intermediate results according to the preset heuristic rules.

reinforcement-learning Reinforcement Learning (RL)

GridTuner: Reinvestigate Grid Size Selection for Spatiotemporal Prediction Models [Technical Report]

no code implementations10 Jan 2022 Jiabao Jin, Peng Cheng, Lei Chen, Xuemin Lin, Wenjie Zhang

In this paper, we study a region partitioning problem, namely optimal grid size selection problem (OGSS), which aims to minimize the real error of spatiotemporal prediction models by selecting the optimal grid size.

Traffic Prediction

BanditMTL: Bandit-based Multi-task Learning for Text Classification

no code implementations ACL 2021 YUREN MAO, Zekai Wang, Weiwei Liu, Xuemin Lin, Wenbin Hu

Task variance regularization, which can be used to improve the generalization of Multi-task Learning (MTL) models, remains unexplored in multi-task text classification.

Multi-Task Learning text-classification +1

A Queueing-Theoretic Framework for Vehicle Dispatching in Dynamic Car-Hailing [technical report]

no code implementations19 Jul 2021 Peng Cheng, Jiabao Jin, Lei Chen, Xuemin Lin, Libin Zheng

In this paper, we consider an important dynamic car-hailing problem, namely \textit{maximum revenue vehicle dispatching} (MRVD), in which rider requests dynamically arrive and drivers need to serve as many riders as possible such that the entire revenue of the platform is maximized.

Reinforcement Learning based Collective Entity Alignment with Adaptive Features

1 code implementation5 Jan 2021 Weixin Zeng, Xiang Zhao, Jiuyang Tang, Xuemin Lin, Paul Groth

Entity alignment (EA) is the task of identifying the entities that refer to the same real-world object but are located in different knowledge graphs (KGs).

Decision Making Entity Alignment +3

PEFP: Efficient k-hop Constrained s-t Simple Path Enumeration on FPGA

no code implementations21 Dec 2020 Zhengmin Lai, You Peng, Shiyu Yang, Xuemin Lin, Wenjie Zhang

Motivated by this, in this paper, we propose the first FPGA-based algorithm PEFP to solve the problem of k-hop constrained s-t simple path enumeration efficiently.

Databases

GoGNN: Graph of Graphs Neural Network for Predicting Structured Entity Interactions

1 code implementation12 May 2020 Hanchen Wang, Defu Lian, Ying Zhang, Lu Qin, Xuemin Lin

We observe that existing works on structured entity interaction prediction cannot properly exploit the unique graph of graphs model.

Taming the Expressiveness and Programmability of Graph Analytical Queries

no code implementations20 Apr 2020 Lu Qin, Longbin Lai, Kongzhang Hao, Zhongxin Zhou, Yiwei Zhao, Yuxing Han, Xuemin Lin, Zhengping Qian, Jingren Zhou

Graph database has enjoyed a boom in the last decade, and graph queries accordingly gain a lot of attentions from both the academia and industry.

Code Generation

Binarized Graph Neural Network

no code implementations19 Apr 2020 Hanchen Wang, Defu Lian, Ying Zhang, Lu Qin, Xiangjian He, Yiguang Lin, Xuemin Lin

Our proposed method can be seamlessly integrated into the existing GNN-based embedding approaches to binarize the model parameters and learn the compact embedding.

Graph Embedding

Collective Entity Alignment via Adaptive Features

1 code implementation18 Dec 2019 Weixin Zeng, Xiang Zhao, Jiuyang Tang, Xuemin Lin

Entity alignment (EA) identifies entities that refer to the same real-world object but locate in different knowledge graphs (KGs), and has been harnessed for KG construction and integration.

Entity Alignment Knowledge Graphs

A Survey and Experimental Analysis of Distributed Subgraph Matching

1 code implementation27 Jun 2019 Longbin Lai, Zhu Qing, Zhengyi Yang, Xin Jin, Zhengmin Lai, Ran Wang, Kongzhang Hao, Xuemin Lin, Lu Qin, Wenjie Zhang, Ying Zhang, Zhengping Qian, Jingren Zhou

We conduct extensive experiments for both unlabelled matching and labelled matching to analyze the performance of distributed subgraph matching under various settings, which is finally summarized as a practical guide.

Databases

Efficient Graph Edit Distance Computation and Verification via Anchor-aware Lower Bound Estimation

no code implementations20 Sep 2017 Lijun Chang, Xing Feng, Xuemin Lin, Lu Qin, Wenjie Zhang

Graph edit distance (GED) is an important similarity measure adopted in a similarity-based analysis between two graphs, and computing GED is a primitive operator in graph database analysis.

Databases Data Structures and Algorithms

Effective Multi-Query Expansions: Collaborative Deep Networks for Robust Landmark Retrieval

no code implementations18 Jan 2017 Yang Wang, Xuemin Lin, Lin Wu, Wenjie Zhang

Given a query photo issued by a user (q-user), the landmark retrieval is to return a set of photos with their landmarks similar to those of the query, while the existing studies on the landmark retrieval focus on exploiting geometries of landmarks for similarity matches between candidate photos and a query photo.

Collaborative Filtering Retrieval

Approximate Nearest Neighbor Search on High Dimensional Data --- Experiments, Analyses, and Improvement (v1.0)

3 code implementations8 Oct 2016 Wen Li, Ying Zhang, Yifang Sun, Wei Wang, Wenjie Zhang, Xuemin Lin

Approximate Nearest neighbor search (ANNS) is fundamental and essential operation in applications from many domains, such as databases, machine learning, multimedia, and computer vision.

Databases

Iterative Views Agreement: An Iterative Low-Rank based Structured Optimization Method to Multi-View Spectral Clustering

no code implementations19 Aug 2016 Yang Wang, Wenjie Zhang, Lin Wu, Xuemin Lin, Meng Fang, Shirui Pan

Multi-view spectral clustering, which aims at yielding an agreement or consensus data objects grouping across multi-views with their graph laplacian matrices, is a fundamental clustering problem.

Clustering

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