Jiazhi Xia

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HetVis: A Visual Analysis Approach for Identifying Data Heterogeneity in Horizontal Federated Learning

IEEE TVCG | IEEE Transactions on Visualization and Computer Graphics

Horizontal federated learning (HFL) enables distributed clients to train a shared model and keep their data privacy. In training …

Xumeng Wang , Wei Chen , Jiazhi Xia , Zhen Wen , Rongchen Zhu , Tobias Schreck

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ConceptExplorer: Visual Analysis of Concept Drifts in Multi-source Time-series Data

IEEE VAST | IEEE Conference on Visual Analytics Science and Technology

Time-series data is widely studied in various scenarios, like weather forecast, stock market, customer behavior analysis. To …

Xumeng Wang , Wei Chen , Jiazhi Xia , Zexian Chen , Dongshi Xu , Xiangyang Wu , Mingliang Xu , Tobias Schreck

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RSATree: Distribution-AwareData Representation of Large-Scale Tabular Datasets for Flexible Visual Query

IEEE TVCG | IEEE Transactions on Visualization and Computer Graphics

Analysts commonly investigate the data distributions derived from statistical aggregations of data that are represented by charts, such …

Honghui Mei , Wei Chen , Yating Wei , Yuanzhe Hu , Shuyue Zhou , Bingru Lin , Ying Zhao , Jiazhi Xia

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location2vec: a situation-aware representation for visual exploration of urban locations

IEEE TITS | IEEE Transactions on Intelligent Transportation Systems

Understanding the relationship between urban locations is an essential task in urban planning and transportation management. Whereas …

Minfeng Zhu , Wei Chen , Jiazhi Xia , Yuxin Ma , Yankong Zhang , Yuetong Luo , Zhaosong Huang , Liangjun Liu

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Evaluating Multi-Dimensional Visualizations for Understanding Fuzzy Clusters.

IEEE TVCG | IEEE Transactions on Visualization and Computer Graphics

Fuzzy clustering assigns a probability of membership for a datum to a cluster, which veritably reflects real-world clustering scenarios …

Ying Zhao , Feng Luo , Minghui Chen , Yingchao Wang , Jiazhi Xia , Fangfang Zhou , Yunhai Wang , Yi Chen , Wei Chen

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Structure-Based Suggestive Exploration: New Approach for Effective Exploration of Large Networks

IEEE TVCG | IEEE Transactions on Visualization and Computer Graphics

When analyzing a visualized network, users need to explore different sections of the network to gain insight. However, effective …

Wei Chen , Fangzhou Guo , Dongming Han , Jiacheng Pan , Xiaotao Nie , Jiazhi Xia , Xiaolong Zhang

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LDSScanner: Exploratory Analysis of Low-Dimensional Structures in High-Dimensional Datasets

IEEE TVCG | IEEE Transactions on Visualization and Computer Graphics

Many approaches for analyzing a high-dimensional dataset assume that the dataset contains specific structures, e.g., clusters in linear …

Jiazhi Xia , Fenjin Ye , Wei Chen , Yusi Wang , Weifeng Chen , Yuxin Ma , Anthony K.H. Tung

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Real-Time Shape Illustration Using Laplacian Lines

IEEE TVCG | IEEE Transactions on Visualization and Computer Graphics

This paper presents a novel object-space line drawing algorithm that can depict shapes with view-dependent feature lines in real time. …

Long Zhang , Ying He , Jiazhi Xia , Xuexiang Xie , Wei Chen

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