个人简介

2002和2005年于北京大学分别获得学士和硕士学位，于2011年在新加坡国立大学获得博士学位，主要的研究方向包括：分布式数据、大数据处理、人工智能驱动的数据分析等。在数据库领域顶级/重要学术期刊ACM Computing Survey、The VLDB Journal (VLDBJ)、IEEE Transactions on Knowledge and Data Engineering (TKDE)等和国际会议SIGMOD、VLDB、ICDE、SIGIR等发表论文60多篇。大数据并行处理框架epiC的论文被评选为VLDB 2014最佳论文奖,分布式数据库BestPeer++论文获ICDE 2012最佳论文提名。论文《Distributed data management using MapReduce》作为滑铁卢大学、雅典大学等大数据课程教材。申请人是多个国际知名会议（VLDB2010, ICDE2011，CIKM2011, VLDB2014, ICDE2014, SIGMOD2014, SIGMOD2015, VLDB2015，VLDB2016, VLDB2017，CIKM2017, ICDE 2018, VLDB2018, VLDB2019, VLDB 2022, KDD 2021, KDD 2022）的程序委员会委员，是VLDB 2014会议的Web Chair，APWeb 2015 的Tutorial Chair， APWeb 2011特邀报告学者。申请人基于epiC开发的yzStack大数据平台已经在浙江省财政厅、南方电网超高压、杭州市海关等项目上得到应用。大数据相关研究成果获得了2016年教育部科技进步奖一等奖（4/10）, 2019年电子学会科技进步特等奖（6/15）, 2020年电子学会科技进步一等奖（3/15）, 2020年教育部科技进步奖一等奖（9/10）。2020获得国家万人计划青年拔尖人才。

教学与课程

2018-2019   大数据分析

2017-2018   操作系统原理，操作系统实践

2016-2017   操作系统原理，操作系统实践

2015-2016   操作系统原理

2014-2015   操作系统原理

2013-2014   操作系统原理

研究成果

伍赛.基于微博的众包问答系统信息采集方法.发明专利,.2016:2/6

伍赛.一种基于内容环境增强的用户事件相关度计算方法.发明专利,.2017:4/6

伍赛.一种分布式网络信息结构化处理方法.发明专利,.2017:2/5

期刊论文

1. Zhifei Pang, Sai Wu, Haichao Huang, Zhouzhenyan Hong, Yuqing Xie: AQUA+: Query Optimization for Hybrid Database-MapReduce System. Knowl. Inf. Syst. 63(4): 905-938 (2021)

2. Sai Wu, Zhifei Pang, Gang Chen, Yunjun Gao, Cenjiong Zhao, Shili Xiang: NEIST: A Neural-Enhanced Index for Spatio-Temporal Queries. IEEE Trans. Knowl. Data Eng. 33(4): 1659-1673 (2021)

3. Jingtian Zhang, Lidan Shou, Sai Wu, Gang Chen, Ke Chen: A two-phase approach for unexpected pattern mining. Expert Syst. Appl. 141 (2020)

4. Dongxiang Zhang, Rui Cao, Sai Wu: Information fusion in visual question answering: A Survey. Inf. Fusion 52: 268-280 (2019)

5. Zunlei Feng, Zhenyun Yu, Yongcheng Jing, Sai Wu, Mingli Song, Yezhou Yang, Junxiao Jiang: Interpretable Partitioned Embedding for Intelligent Multi-item Fashion Outfit Composition. ACM Trans. Multim. Comput. Commun. Appl. 15(2s): 61:1-61:20 (2019)

6. Xinyuan Luo, Sai Wu, Wei Wang, Lidan Shou: Tuning the granularity of parallelism for distributed graph processing. Distributed and Parallel Databases 35(2): 117-148 (2017)

7. Xiaoling Gu, Sai Wu, Pai Peng, Lidan Shou, Ke Chen, Gang Chen:CSIR4G: An effective and efficient cross-scenario image retrieval model for glasses. Inf. Sci. 417: 310-327 (2017)

8. Dongxiang Zhang, Long Guo, Liqiang Nie, Jie Shao, Sai Wu, Heng Tao Shen:Targeted Advertising in Public Transportation Systems with Quantitative Evaluation. ACM Trans. Inf. Syst. 35(3): 20:1-20:29 (2017)

9. Dawei Jiang, Sai Wu, Gang Chen, Beng Chin Ooi, Kian-Lee Tan, Jun Xu:epiC: an extensible and scalable system for processing Big Data. VLDB J. 25(1): 3-26 (2016)

10. Gang Chen, Sai Wu, Yuan Wang: The Evolvement of Big Data Systems: From the Perspective of an Information Security Application. Big Data Research 2(2): 65-73

11. Sai Wu, Gang Chen, Ke Chen, Feng Li, Lidan Shou:HM: A Column-Oriented MapReduce System on Hybrid Storage. IEEE Trans. Knowl. Data Eng. 27(12): 3304-3317 (2015)

12. Dingyu Yang, Jian Cao, Sai Wu, Jie Wang:Progressive online aggregation in a distributed stream system. Journal of Systems and Software 102: 146-157 (2015)

13. Xianke Zhou, Sai Wu, Gang Chen, Lidan Shou: kNN processing with co-space distance in SoLoMo systems. Expert Syst. Appl. 41(16): 6967-6982 (2014)

14. Xianke Zhou, Sai Wu, Chun Chen, Gang Chen, Shanshan Ying: Real-time recommendation for microblogs. Inf. Sci. 279: 301-325 (2014)

15. Feng Li, Beng Chin Ooi, M. Tamer Özsu, Sai Wu: Distributed data management using MapReduce. ACM Comput. Surv. 46(3): 31 (2014)

16. Gang Chen, Tianlei Hu, Dawei Jiang, Peng Lu, Kian-Lee Tan, Hoang Tam Vo, Sai Wu: BestPeer++: A Peer-to-Peer BasedLarge-Scale Data Processing Platform. IEEE Trans. Knowl. Data Eng. 26(6): 1316-1331 (2014)

17. Lidan Shou, Sai Wu: Supporting Efficient Social Media Search in Cyber-Physical Web. IEEE Data Eng. Bull. 36(3): 83-90 (2013)

18. Sai Wu, Xiaoli Wang, Sheng Wang, Zhenjie Zhang, Anthony K.H. Tung: K-Anonymity for Crowdsourcing Database.  IEEE Transactions on Knowledge and Data Engineering, 15 May 2013 (preprint)

19. Gang Chen, Sai Wu, Jingbo Zhou, Anthony K.H. Tung: Automatic Itinerary Planning for Traveling Services. IEEE Transactions on Knowledge and Data Engineering, 13 March 2013 (preprint)

20. Gang Chen, Ke Chen, Dawei Jiang, Beng Chin Ooi, Lei Shi, Hoang Tam Vo, Sai Wu: E3: an Elastic Execution Engine for Scalable Data Processing. JIP 20(1): 65-76 (2012)

21. Dalie Sun, Sai Wu, Shouxu Jiang, Jianzhong Li: Approximate Aggregations in Structured P2P Networks. IEEE Trans. Knowl. Data Eng. 23(11): 1748-1752 (2011)

会议论文

1. Jue Wang, Ke Chen, Lidan Shou, Sai Wu, Gang Chen: Effective Slot Filling via Weakly-Supervised Dual-Model Learning. AAAI 2021: 13952-13960

2. Xiu Tang, Sai Wu, Gang Chen, Jinyang Gao, Wei Cao, Zhifei Pang: A Learning to Tune Framework for LSH. ICDE 2021: 2201-2206

3. Junbo Zhao, Mingfeng Ou, Linji Xue, Yunkai Cui, Sai Wu, Gang Chen: Joining datasets via data augmentation in the label space for neural networks. ICML 2021: 12686-12696

4. Hao Huang, Yanan Peng, Ting Gan, Weiping Tu, Ruiting Zhou, Sai Wu: Metric Learning via Penalized Optimization. KDD 2021: 656-664

5. Wentao Hu, Dongxiang Zhang, Dawei Jiang, Sai Wu, Ke Chen, Kian-Lee Tan, Gang Chen: AUDITOR: A System Designed for Automatic Discovery of Complex Integrity Constraints in Relational Databases. SIGMOD Conference 2020: 2697-2700

6. Dongxiang Zhang, Yuyang Nie, Sai Wu, Yanyan Shen, Kian-Lee Tan: Multi-Context Attention for Entity Matching. WWW 2020: 2634-2640

7. Jingtian Zhang, Sai Wu, Zeyuan Tan, Gang Chen, Zhushi Cheng, Wei Cao, Yusong Gao, Xiaojie Feng: S3: A Scalable In-memory Skip-List Index for Key-Value Store. Proc. VLDB Endow. 12(12): 2183-2194 (2019)

8. Zhifei Pang, Sai Wu, Dongxiang Zhang, Yunjun Gao, Gang Chen: NAD: Neural Network Aided Design for Textile Pattern Generation. CIKM 2019: 2081-2084

9. Keyu Yang, Yunjun Gao, Rui Ma, Lu Chen, Sai Wu, Gang Chen: DBSCAN-MS: Distributed Density-Based Clustering in Metric Spaces. ICDE 2019: 1346-1357

10. Dongxiang Zhang, Long Guo, Xiangnan He, Jie Shao, Sai Wu, Heng Tao Shen: A Graph-Theoretic Fusion Framework for Unsupervised Entity Resolution. ICDE 2018: 713-724

11. Zhifei Pang, Sai Wu, Gang Chen, Ke Chen, Lidan Shou:FlashView: An Interactive Visual Explorer for Raw Data. PVLDB 10(12): 1869-1872 (2017)

12. Sai Wu, Mengdan Zhang, Gang Chen, Ke Chen:A New Approach to Compute CNNs for Extremely Large Images. CIKM 2017: 39-48

13. Sai Wu, Weichao Ren, Chengchao Yu, Gang Chen, Dongxiang Zhang, Jingbo Zhu:Personal recommendation using deep recurrent neural networks in NetEase. ICDE 2016: 1218-1229

14. Xiaoling Gu, Lidan Shou, Pai Peng, Ke Chen, Sai Wu, Gang Chen:iGlasses: A Novel Recommendation System for Best-fit Glasses. SIGIR 2016: 1109-1112

15. Chang Yao, Divyakant Agrawal, Gang Chen, Beng Chin Ooi, Sai Wu:Adaptive Logging: Optimizing Logging and Recovery Costs in Distributed In-memory Databases. SIGMOD Conference 2016: 1119-1134

16. Yuxin Zheng, Qi Guo, Anthony K. H. Tung, Sai Wu:LazyLSH: Approximate Nearest Neighbor Search for Multiple Distance Functions with a Single Index. SIGMOD Conference 2016: 2023-2037

17. Zhenhua Wang, Ping He, Lidan Shou, Ke Chen, Sai Wu, Gang Chen:Toward the New Item Problem: Context-Enhanced Event Recommendation in Event-Based Social Networks. ECIR 2015: 333-338

18. Sai Wu, Gang Chen, Xianke Zhou, Zhenjie Zhang, Anthony K. H. Tung, Marianne Winslett:PABIRS: A data access middleware for distributed file systems. ICDE 2015: 113-124

19. Xiaoling Gu, Pai Peng, Mengwen Li, Sai Wu, Lidan Shou, Gang Chen:Cross-Scenario Eyeglasses Retrieval via EGYPT Model. ICMR 2015: 463-466

20. Dawei Jiang, Gang Chen, Beng Chin Ooi, Kian-Lee Tan, Sai Wu: epiC: an Extensible and Scalable System for Processing Big Data. PVLDB 7(7): 541-552 (2014) (Best Paper Award)

21. Sai Wu, Gang Chen, Ke Chen, Lidan Shou, Hui Cao, He Bai: yzStack: Provisioning Customizable Solution for Big Data. PVLDB 7(13): 1778-1783 (2014)

22. Pai Peng, Lidan Shou, Ke Chen, Gang Chen, Sai Wu: The knowing camera 2: recognizing and annotating places-of-interest in smartphone photos. SIGIR 2014: 707-716

23. Pai Peng, Lidan Shou, Ke Chen, Gang Chen, Sai Wu: The Knowing Camera: Recognizing Places-of-Interest in SmartPhone Photos (Poster), SIGIR 2013

24. Xianke Zhou, Ke Chen, Sai Wu, Bingbing Zhang: Crowd-Answering System via Microblogging. ICDE (DEMO) 2013

25. Peng Lu, Sai Wu, Lidan Shou, Kian-Lee Tan: An Efficient and Compact Indexing Scheme for Large-scale Data Store. ICDE 2013

26. Sai Wu, Vibhore Kumar, Kun-Lung Wu, Beng Chin Ooi: Parallelizing stateful operators in a distributed stream processing system: how, should you and how much? DEBS 2012: 278-289

27. Chen Liu, Sai Wu, Shouxu Jiang, Anthony K. H. Tung: Cross Domain Search by Exploiting Wikipedia. ICDE 2012: 546-557

28. Gang Chen, Tianlei Hu, Dawei Jiang, Peng Lu, Kian-Lee Tan, Hoang Tam Vo, Sai Wu: BestPeer++: A Peer-to-Peer Based Large-Scale Data Processing Platform. ICDE 2012: 582-593

29. Xuan Liu, Meiyu Lu, Beng Chin Ooi, Yanyan Shen, Sai Wu, Meihui Zhang: CDAS: A Crowdsourcing Data Analytics System CoRR abs/1207.0143: (2012)

30. Xuan Liu, Meiyu Lu, Beng Chin Ooi, Yanyan Shen, Sai Wu, Meihui Zhang: CDAS: A Crowdsourcing Data Analytics System. PVLDB 5(10): 1040-1051 (2012)

31. Sai Wu, F. Li, S. Mehrotra, B. C. Ooi: Query Optimization for Massively Parallel Data Processing. ACM Symposium on Cloud Computing (SOCC). 2011.

32. Yu Cao, Chun Chen, Fei Guo, Dawei Jiang, Yuting Lin, Beng Chin Ooi, Hoang Tam Vo, Sai Wu, Quanqing Xu: ES2: A cloud data storage system for supporting both OLTP and OLAP. ICDE 2011: 291-302

33. Chun Chen, Feng Li, Beng Chin Ooi, Sai Wu: TI: an efficient indexing mechanism for real-time search on tweets. SIGMOD Conference 2011: 649-660

34. Yuting Lin, Divyakant Agrawal, Chun Chen, Beng Chin Ooi, Sai Wu: Llama: leveraging columnar storage for scalable join processing in the MapReduce framework. SIGMOD Conference 2011: 961-972

35. Gang Chen, Hoang Tam Vo, Sai Wu, Beng Chin Ooi, M. Tamer Özsu: A Framework for Supporting DBMS-like Indexes in the Cloud. PVLDB 4(11): 702-713 (2011)

36. Jinbao Wang, Sai Wu, Hong Gao, Jianzhong Li, Beng Chin Ooi: Indexing multi-dimensional data in a cloud system. SIGMOD Conference 2010: 591-602

37. Sai Wu, Beng Chin Ooi, Kian-Lee Tan: Continuous sampling for online aggregation over multiple queries. SIGMOD Conference 2010: 651-662

38. Chun Chen, Gang Chen, Dawei Jiang, Beng Chin Ooi, Hoang Tam Vo, Sai Wu, Quanqing Xu: Providing Scalable Database Services on the Cloud. WISE 2010: 1-19

39. Sai Wu, Dawei Jiang, Beng Chin Ooi, Kun-Lung Wu: Efficient B-tree Based Indexing for Cloud Data Processing. PVLDB 3(1): 1207-1218 (2010)

40. Dawei Jiang, Beng Chin Ooi, Lei Shi, Sai Wu: The Performance of MapReduce: An In-depth Study. PVLDB 3(1): 472-483 (2010)

41. Quang Hieu Vu, Mihai Lupu, Sai Wu: SiMPSON: Efficient Similarity Search in Metric Spaces over P2P Structured Overlay Networks. Euro-Par 2009: 498-510

42. Sai Wu, Quang Hieu Vu, Jianzhong Li, Kian-Lee Tan: Adaptive Multi-join Query Processing in PDBMS. ICDE 2009: 1239-1242

43. Sai Wu, Kun-Lung Wu: An Indexing Framework for Efficient Retrieval on the Cloud. IEEE Data Eng. Bull. 32(1): 75-82 (2009)

44. Sai Wu, Shouxu Jiang, Beng Chin Ooi, Kian-Lee Tan: Distributed Online Aggregation. PVLDB 2(1): 443-454 (2009)

45. Dalie Sun, Sai Wu, Jianzhong Li, Anthony K. H. Tung: Skyline-join in distributed databases. ICDE Workshops 2008: 176-181

46. Sai Wu, Jianzhong Li, Beng Chin Ooi, Kian-Lee Tan: Just-in-time query retrieval over partially indexed data on structured P2P overlays. SIGMOD Conference 2008: 279-290

47. Sai Wu, Hong Gao, Bei Yu. Supporting High Dimensional Range Queries in Peer-to-Peer Systems DBISP2P 2007. Austria