Profile

Dr Wu is an associate professor of Zhejiang University. He recieved his Ph.D degree in computer science from National University of Singapore (NUS) in 2011. His advisor is professor Beng Chin Ooi. Before joining NUS. He got his master and bachelor degree from Peking University in 2005 and 2002, respectively.  In 2009, he worked as a research intern in IBM TJ-Watson, NY, for the S3 project.

He has served as PC for many top conferences, such as ICDE2011, VLDB2010, CIKM2011, VLDB2014, ICDE2014, SIGMOD2014, SIGMOD2015, VLDB2016, IEEE Big Data 2016, .  He is a regular reviewer for journals like TKDE, TODS and DPDBS.

 

Journal Papers:

  1. Sai Wu, Gang Chen, Ke Chen, Feng Li, Lidan Shou: HM: A Column-Oriented MapReduce System on Hybrid Storage. TKDE 2015 (to appear)
  2. 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)
  3. 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)
  4. Xianke Zhou, Sai Wu, Chun Chen, Gang Chen, Shanshan Ying: Real-time recommendation for microblogs. Inf. Sci. 279: 301-325 (2014)
  5. Feng Li, Beng Chin Ooi, M. Tamer Özsu, Sai Wu: Distributed data management using MapReduce. ACM Comput. Surv. 46(3): 31 (2014)
  6. 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)
  7. Lidan Shou, Sai Wu: Supporting Efficient Social Media Search in Cyber-Physical Web. IEEE Data Eng. Bull. 36(3): 83-90 (2013)
  8. 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)
  9. 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)
  10. 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)
  11. Dalie Sun, Sai Wu, Shouxu Jiang, Jianzhong Li: Approximate Aggregations in Structured P2P Networks. IEEE Trans. Knowl. Data Eng. 23(11): 1748-1752 (2011)

Conference Papers:

  1. Yuxin Zheng , Qi Guo, Anthony Tung, Sai Wu. LazyLSH: Approximate Nearest Neighbor Search for Multiple Distance Functions with a Single Index. Accepted in SIGMOD 2016
  2. Sai Wu, Weichao Ren, Chengchao Yu, Gang Chen. Real-time Recommendation Using Deep Recurrent Neural Network in NetEase. Accepted in ICDE 2016.
  3. 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
  4. Peng Lu, Gang Chen, Beng Chin Ooi, Hoang Tam Vo, Sai Wu:ScalaGiST: Scalable Generalized Search Trees for MapReduce Systems [Innovative Systems Paper]. PVLDB 7(14): 1797-1808 (2014)
  5. 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)
  6. 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)
  7. 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
  8. Pai Peng, Lidan Shou, Ke Chen, Gang Chen, Sai Wu: The Knowing Camera: Recognizing Places-of-Interest in SmartPhone Photos (Poster), SIGIR 2013
  9. Xianke Zhou, Ke Chen, Sai Wu, Bingbing Zhang: Crowd-Answering System via Microblogging. ICDE (DEMO) 2013
  10. Peng Lu, Sai Wu, Lidan Shou, Kian-Lee Tan: An Efficient and Compact Indexing Scheme for Large-scale Data Store. ICDE 2013
  11. 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
  12. Chen Liu, Sai Wu, Shouxu Jiang, Anthony K. H. Tung: Cross Domain Search by Exploiting Wikipedia. ICDE 2012: 546-557
  13. 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
  14. Xuan Liu, Meiyu Lu, Beng Chin Ooi, Yanyan Shen, Sai Wu, Meihui Zhang: CDAS: A Crowdsourcing Data Analytics System CoRR abs/1207.0143: (2012)
  15. 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)
  16. Sai Wu, F. Li, S. Mehrotra, B. C. Ooi: Query Optimization for Massively Parallel Data Processing. ACM Symposium on Cloud Computing (SOCC). 2011.
  17. 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
  18. 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
  19. 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
  20. 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)
  21. Jinbao Wang, Sai Wu, Hong Gao, Jianzhong Li, Beng Chin Ooi: Indexing multi-dimensional data in a cloud system. SIGMOD Conference 2010: 591-602
  22. Sai Wu, Beng Chin Ooi, Kian-Lee Tan: Continuous sampling for online aggregation over multiple queries. SIGMOD Conference 2010: 651-662
  23. 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
  24. 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)
  25. Dawei Jiang, Beng Chin Ooi, Lei Shi, Sai Wu: The Performance of MapReduce: An In-depth Study. PVLDB 3(1): 472-483 (2010)
  26. Quang Hieu Vu, Mihai Lupu, Sai Wu: SiMPSON: Efficient Similarity Search in Metric Spaces over P2P Structured Overlay Networks. Euro-Par 2009: 498-510
  27. Sai Wu, Quang Hieu Vu, Jianzhong Li, Kian-Lee Tan: Adaptive Multi-join Query Processing in PDBMS. ICDE 2009: 1239-1242
  28. Sai Wu, Kun-Lung Wu: An Indexing Framework for Efficient Retrieval on the Cloud. IEEE Data Eng. Bull. 32(1): 75-82 (2009)
  29. Sai Wu, Shouxu Jiang, Beng Chin Ooi, Kian-Lee Tan: Distributed Online Aggregation. PVLDB 2(1): 443-454 (2009)
  30. Dalie Sun, Sai Wu, Jianzhong Li, Anthony K. H. Tung: Skyline-join in distributed databases. ICDE Workshops 2008: 176-181
  31. 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
  32. Sai Wu, Hong Gao, Bei Yu. Supporting High Dimensional Range Queries in Peer-to-Peer Systems DBISP2P 2007. Austria

 

Research work

Dr Wu's Ph.D thesis is on Query Processing in Peer-based Data Management System. He focused on developing the efficient distributed database systems by leveraging the P2P techniques. Recently, he combined his research experience with the Cloud system, trying to address the big data problem. Besides, he is also interested in the data management of social networks and crowdsourcing system.

Contact

Phone:
E-mail:wusai AT zju.edu.cn