图数据管理：

随着社交网络、知识图谱及其他网络数据的迅猛发展，图数据在大数据分析、智能推荐等应用中的核心地位日益凸显。与传统关系型数据库采用表格和连接操作刻画数据不同，图数据以顶点和边的形式更直观地表达事物之间的复杂关联。尽管灵活的模式极大便利了多源异构数据的集成，但也给图数据的存储、查询优化及分布式处理带来了诸多挑战。我们的研究重点聚焦于图查询领域，特别是与流数据结合形成的流图（streaming graph）上的持续查询，包括子图匹配、正则路径查询的优化等。此外，我们也关注流图的摘要、采样等近似存储方案。

流数据与时序数据管理：

随着物联网、金融交易、日志监控等应用的持续涌现，流数据与时序数据管理正成为大数据处理领域的关键技术。与传统数据库面向静态、持久化数据集不同，流数据以连续、无限、快速到达为特征，且通常带有时间戳以标识其到达时刻。经过流处理系统的实时处理后，这类数据往往以时序数据的形式被持久化存储，因此流数据与时序数据在很多场景下呈现一体两面的关系。我的研究除了关注前文所述图数据与流数据交叉形成的流图数据外，也聚焦于更广义的流数据管理与查询，例如流数据的摘要结构、关系型流数据上的多表连接查询等。在时序数据方面，我目前重点关注大规模时序数据的清洗、存储、视图管理以及智能分析。

合作博士研究生 : 杨凌林、曹立升、叶心怡、赵春山

本科实习生: 于米多

Xiangyang Gou, Lei Zou, Jeffrey Xu Yu, Wenjie Zhang. An Extensive Experimental Study of Indexes in Continuous Subgraph Matching: [Experiments & Analysis].  Proceedings of the ACM on Management of Data （PACMMOD，SIGMOD 2026）, 2026, 4(1): 1-26

 Linglin Yang,  Xunbin Su, Lei Zou, Xiangyang Gou and Yinnian Lin， CEMR: An Effective Subgraph Matching Algorithm with Redundant Extension Elimination，The International Conference on Very Large Data Bases （VLDB 2026）， To appear.

LiSheng Cao, Xiangyang Gou*, Lei Zou, Wenjie Zhang: MAVIS: Materialized View for Subgraph Matching. Proceedings of the ACM on Management of Data （PACMMOD，SIGMOD 2026）, 2025，3(6), 1-26.

Xinyi Ye, Xiangyang Gou*, Lei Zou, Wenjie Zhang: AJOSC: Adaptive join order selection for continuous queries on data streams. Proceedings of the ACM on Management of Data （PACMMOD，SIGMOD 2025）, 2025, 3(3): 1-27

苟向阳，邹磊，于旭：高精度滑动窗口模型下的图流三角形近似计数算法.软件学报,2025,36(9):4349-4372

Xiangyang Gou, Xinyi Ye, Lei Zou, Jeffrey Xu Yu: LM-SRPQ: Efficiently Answering Regular Path Query in Streaming Graphs. Proceedings of the VLDB Endowment (PVLDB，VLDB 2024), 2024, 17(5): 1047-1059.

Xiangyang Gou, Lei Zou: Sliding window-based approximate triangle counting with bounded memory usage." The VLDB Journal (VLDBJ), 2023, 32(5): 1087-1110.

Fan Zhang, Xiangyang Gou, Lei Zou: Top-k heavy weight triangles listing on graph stream. World Wide Web: Internet and Web Information Systems (WWW Journal),  2023, 26(4): 1827-1851.

Xiangyang Gou, Lei Zou, Chenxingyu Zhao, Tong Yang: Graph Stream Sketch: Summarizing Graph Streams with High Speed and Accuracy. IEEE Transactions on Knowledge and Data Engineering (TKDE), 2022, 35(6): 5901-5914.

Xiangyang Gou, Yinda Zhang, Zhoujing Hu, Long He, Ke Wang, Xilai Liu, Tong Yang, Yi Wang, Bin Cui: A Sketch Framework for Approximate Data Stream Processing in Sliding Windows. IEEE Transactions on Knowledge and Data Engineering (TKDE), 2022, 32(5), 4411-4424.

Xiangyang Gou, Lei Zou: Sliding Window-based Approximate Triangle Counting over Streaming Graphs with Duplicate Edges. The International Conference on Management of Data（SIGMOD） Xi’an, China, 2021-06-20 至 2021-06-25.

Xiangyang Gou, Long He, Yinda Zhang, Ke Wang, Xilai Liu, Tong Yang, Yi Wang, Bin Cui: Sliding sketches: A framework using time zones for data stream processing in sliding windows. The International Conference on Knowledge Discovery & Data Mining (SIGKDD), virtual conference, 2020-08-23 至 2020-08-27.

Fan Zhang, Lei Zou, Li Zeng, Xiangyang Gou: Dolha-an efficient and exact data structure for streaming graphs. World Wide Web: Internet and Web Information Systems (WWW Journal), 2020, 23(2): 873-903.

Xiangyang Gou, Lei Zou, Chenxingyu Zhao, Tong Yang: Fast and accurate graph stream summarization. The International Conference on Data Engineering (ICDE)，Macau SAR, China, 2019-04-08 至 2019-04-11.

Xiangyang Gou, Chenxingyu Zhao, Tong Yang, Lei Zou, Yang Zhou, Yibo Yan, Xiaoming Li, Bin Cui: Single hash: Use one hash function to build faster hash based data structures. The International Conference on Big Data and Smart Computing (BigComp). 2018-01-15 至 2018-01-17.

本科生课程：

研究生课程：

活动：

PC Member：ICDE 2025, 2027，PAKDD 2026，WISE 2021，2023，2024，2025

Reviewer:  TKDE

获奖和荣誉:

 2024 年 CCF 博士学位论文激励计划

 2024年 CCF 数据库专委会优秀博士学位论文激励计划

邹磊，苟向阳，刘钰：中国工业与应用数学学会（CSIAM）应用数学落地成果认证：嵌入式低资源环境下图模式匹配方法及应用。2023-05