李國良

2009.07—2012.12，清華大學計算機系擔任講師。

2012.12—今，清華大學計算機系擔任副教授。

2018.12—今，清華大學計算機系擔任教授。

研究領域

主要研究方向為資料庫，群體計算，數據挖掘、分析與檢索。

在海量多源異構數據表示、獲取、融合、檢索四個方面取得了創新成果，提出了基於圖結構的異構數據統一表示模型、錯誤自動糾正的實體獲取方法、基於模糊匹配的多源異構數據融合演演算法、結構感知的即敲即得式檢索方法，建立了一套海量多源異構數據融合與檢索方法。

大數據時代帶來了數據處理方法的諸多挑戰，針對傳統方法重視處理效率而相對忽視數據質量的問題，主要研究群體計算，通過人機融合的計算方式提高大數據環境下的計算性能。

論文

1.Dongzhe Ma, Jianhua Feng, Guoliang Li. A Survey of Address Translation Technologies for Flash Memories. ACM Computing Surveys, 2014. (To appear)

2.Weiwei Hu, Guoliang Li, Jiacai Ni, Dalie Sun, Kian-lee Tan. Bp-tree: A Predictive B+-tree for Reducing Writes on Phase Change Memory. IEEE Transactions on Knowledge and Data Engineering (TKDE), 2014. (To appear)

3.Jiannan Wang, Guoliang Li, Jianhua Feng. Extending String Similarity Join to Tolerant Fuzzy Token Matching. ACM Transactions on Database Systems (TODS), 2014. (To appear)

4.Sitong Liu, Guoliang Li, Jianhua Feng. A Prefix-Filter based Method for Spatio-Textual Similarity Join. IEEE Transactions on Knowledge and Data Engineering (TKDE), 2014 (To appear.).

5.Jiacai Ni, Guoliang Li, Lijun Wang, Jianhua Feng. Adaptive Database Schema Design for Multi-Tenant Data Management. IEEE Transactions on Knowledge and Data Engineering (TKDE), 2014 (To appear).

6.Guoliang Li, Dong Deng, Jianhua Feng. Pass-Join+: A Partition-based Method for String Similarity Joins with Edit-Distance Constraints. ACM Transactions on Database Systems (ACM TODS), 38(2):9-40,2013.

7.Guoliang Li, Jianhua Feng, Chen Li. Supporting Search-As-You-Type Using SQL in Databases. IEEE Transactions on Knowledge and Data Engineering (TKDE), 25(2): 461-475 (2013).

8.Jianhua Feng, Jiannan Wang, Guoliang Li. Trie-join: a trie-based method for efficient string similarity joins. The VLDB Journal, 21(4):437-461, 2012.

9.Jianhua Feng, Guoliang Li: Fuzzy Type-Ahead Search in XML Data. IEEE Transactions on Knowledge and Data Engineering (TKDE), 24(5):882-895, 2012.

10.Guoliang Li, Jianhua Feng, Jianyong Wang, Lizhu Zhou: KEMB: A Keyword-Based XML Message Broker. IEEE Transactions on Knowledge and Data Engineering (TKDE) 23(7):1035-1049 (2011).

11.Guoliang Li, Shengyue Ji, Chen Li, Jianhua Feng. Efficient Fuzzy Full-Text Type-Ahead Search. The VLDB Journal, 20(4): 617-640, 2011.

12.Guoliang Li, Jianhua Feng, Xiaofang Zhou, Jianyong Wang. Providing Built-in Keyword Search Capabilities in RDBMS. The VLDB Journal, 20(1):1-19, 2011.

13.Jianhua Feng, Guoliang Li, Jianyong Wang: Finding Top-k Answers in Keyword Search over Relational Databases Using Tuple Units. IEEE Transactions on Knowledge and Data Engineering (TKDE)23(12):1781-1794 (2011)

14.Guoliang Li, Shuo Chen, Jianhua Feng, Kian-lee Tan, Wen-Syan Li. Location-aware Influence Maximization. SIGMOD 2014.

徠15.Dong Deng, Guoliang Li, Jianhua Feng. A Pivotal Prefix Based Filtering Algorithm for String Similarity Search. SIGMOD 2014.

16.Guoliang Li, Jun Hu, Kian-lee Tan, Zhifeng Bao, Jianhua Feng. Effective Location Identification from Microblogs. ICDE 2014. (To appear)

17.Dong Deng, Guoliang Li, Shuang Hao, Jiannan Wang, Jianhua Feng, Wen-syan Li. MassJoin: A MapReduce-based Algorithm for String Similarity Joins. ICDE 2014. (To appear)

18.Yong Zeng, Zhifeng Bao, H V Jagadish, Tok Wang Ling, Guoliang Li. Breaking out of the MisMatch Trap. ICDE 2014. (To appear).

19.Jiannan Wang, Guoliang Li, Tim Kraska, Michael J. Franklin, Jianhua Feng. Leveraging Transitive Relations for Crowdsourced Joins. SIGMOD 2013:229-240.

20.Guoliang Li, Ting Wang, Jianhua Feng. Location-Aware Publish/Subscribe. SIGKDD 2013:802-810.

21.Dong Deng, Yu Jiang, Guoliang Li, Jian Li, Cong Yu. Scalable Column Concept Determination for Web Tables Using Large Knowledge Bases. VLDB 2013: 1606-1617.

22.Dong Deng, Guoliang Li, Jianhua Feng: Top-k String Similarity Search with Edit-Distance Constraints. ICDE 2013:925-936.

24.Ju Fan, Guoliang Li, Lizhu Zhou. SEAL: Spatio-Textual Similarity Search. VLDB 2012:253-264.

25.Guoliang Li, Dong Deng, Jiannan Wang, Jianhua Feng: PASS-JOIN: A Partition-based Method for Similarity Joins. VLDB 5(3):253-264 (2012).

26.Guoliang Li, Jiannan Wang, Chen Li, Jianhua Feng: Supporting Efficient Top-k Queries in Fuzzy Type-Ahead Search. SIGIR, 2012: 355-364.

27.Guoliang Li, Jing Xu, Jianhua Feng: Desks: Direction-Aware Spatial Keyword Search. ICDE, 2012:474-485.

28.Dong Deng, Guoliang Li, Jianhua Feng: An Efficient Trie-based Method for Approximate Entity Extraction with Edit-Distance Constraints. ICDE, 2012:762-773.

29.Jiannan Wang, Guoliang Li, Jeffrey Xu Yu, Jianhua Feng: Entity Matching: How Similar Is Similar. VLDB 4(10):622-633 (2011).

30.Guoliang Li, Dong Deng, Jianhua Feng: Faerie: Efficient Filtering Algorithms for Approximate Dictionary-based Entity Extraction. SIGMOD, 2011:529-540.

31.Dongzhe Ma, Jianhua Feng, Guoliang Li: LazyFTL: A Page-level Flash Translation Layer Optimized for NAND Flash Memory. SIGMOD, 2011:1-12.

32.Guoliang Li, Ju Fan, Hao Wu, Jiannan Wang, Jianhua Feng. DBease: Making Databases User-Friendly and Easily Accessible. CIDR, 2011: 45-56.

33.Ju Fan, Guoliang Li, Lizhu Zhou. Interactive SQL Query Suggestion: Making Databases User-Friendly. ICDE, 2011:351-362.

34.Jiannan Wang, Guoliang Li, Jianhua Feng. Extending String Similarity Join to Allow Fuzzy Token Matching. ICDE, 2011:458-469.

35.Jiannan Wang, Guoliang Li, Jianhua Feng, Trie-Join: Efficient Trie-based String Similarity Joins with Edit-Distance Constraint. VLDB, 2010:1219-1230.。

群體計算，通過人機融合的計算方式提高大數據環境下的計算性能。

在國際會議ACM SIGMOD、VLDB、IEEE ICDE、ACM SIGIR、ACM SIGKDD、WWW和國際期刊ACM TODS、VLDB Journal、IEEE TKDE、ACM Computing Survey上發表論文100餘篇，論文被引用1800餘次。