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ag视讯:2019-10-10 编辑:阿喜 来源:

禹晓辉  教授








Advanced Database Systems






Managing Risk and Uncertainty in Query Optimization (Discovery Grant, Natural Sciences and Engineering Research Council of Canada)

Multi-Objective Query Optimization (IBM Centre for Advanced Studies Project)


近期发表论文 (2008-)

Ziqiang Yu, Xiaohui Yu, Yang Liu, Ken Q. Pu. Scalable Distributed Processing of K Nearest Neighbor Queries over Moving Objects. Accepted for publication in IEEE Transactions on Knowledge and Data Engineering (TKDE), 2014.

Chong Yang, Xiaohui Yu, Yang Liu. Continuous KNN Join Processing for Real-time Recommendation. To appear in IEEE International Conference on Data Mining (ICDM), December 14-17, 2014.

Meng Chen, Xiaohui Yu, Yang Liu. NLPMM: a Next Location Predictor with Markov Modeling, in Proceedings of the Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD), May 13-16, 2014.

Xinyan Lou, Yang Liu, Xiaohui Yu. Traffic Session Identification Based on Statistical Language Model. In Proceedings of International Conference on Advanced Data Mining and Applications (ADMA), pp264-275, December 2013.

Yang Liu, Xiaohui Yu, Bing Liu, Zhongshuai Chen. Sentiment Analysis of Sentences with Modalities, in Proceedings of the International Workshop on Mining

Unstructured big data using Natural Language Processing (MNLP), co-located with CIKM, October 2013.

Jiaran Zhang, Xiaohui Yu, and Liwei Lin. DDSN: Duplicate Detection to Reduce Both Storage and Bandwidth Consumption, in Proceedings of the 2013 IEEE International Conference on Big Data, October 2013.

M. Kargar, A. An and X. Yu, Efficient Duplication Free and Minimal Keyword Search in Graphs, IEEE Transactions on Knowledge and Data Engineering (TKDE), online May 2013.

L. Lin, X. Yu, N. Koudas. Pollux: Towards Scalable Distributed Real-time Search on Microblogs, in Proceedings of the 16th International Conference on Extending Database Technology, (EDBT 2013), Genoa, Italy, March 18-22, 2013.

Y. Liu, X. Yu, A. An, X. Huang. Riding the Tide of Sentiment Change: Sentiment Analysis with Evolving Online Reviews, World Wide Web, Vol. 16, No. 4, June 2013.

Z. Yu, X. Yu, Y. Liu. Efficient Top-k Keyword Search over MultiDimensional Databases, in International Journal of Data Warehousing and Mining (IJDWM), Vol. 9, No. 3, 2013.

Z. Abul-Basher, Y. Feng, P. Godfrey, X. Yu, M. Kandil, D. Zilio, C. Zuzarte. Alternative Query Optimization for Workload Management, in DEXA, September 3-6, 2012.

X. Yu, H. Shi. CI-Rank: Ranking Keyword Search Results Based on Collective Importance, in Proceedings of the 28th IEEE International Conference on Data Engineering (ICDE 2012), Washington D.C. April 1-5, 2012

X. Yu, Y. Liu, X. Huang, A. An. Mining Online Reviews for Predicting Sales Performance: A Case Study in the Movie Domain, in IEEE Transactions on Knowledge and Data Engineering (TKDE), April 2012.

Y. Liu, X. Yu, X. Huang, A. An. Combining integrated sampling with SVM ensembles for learning from imbalanced datasets, Inf. Process. Manage. 47(4): 617-631 (2011)

X. Yu, J. Dong. Indexing High-Dimensional Data for Main-Memory Similarity Search, in Information Systems 35 (2010), pp. 825-843, Elsevier, November 2010. DOI:10.1016/

Y. Liu, X. Yu, X. Huang, A. An, S-PLSA+: Adaptive Sentiment Analysis with Application to Sales Performance Prediction, to appear in Proceedings of SIGIR 2010, July 19-23, 2010, Geneva, Switzerland. (poster)

X. Yu, Y. Liu, X. Huang, A. An. A Quality-Aware Model for Sales Prediction Using Reviews, in Proceedings of the 19th International World Wide Web Conference (WWW 2010), Raleigh, North Carolina, April 26-30, 2010. (poster)

X. Yu, H. Shi. Query Segmentation Using Conditional Random Fields, in Proceedings of the First International Workshop on Keyword Search on Structured Data (KEYS 2009), co-located with SIGMOD 2009, Providence, RI, June 28, 2009.

K. Pu, X. Yu. FRISK: Query Cleaning and Processing in Action, in Proceedings of 25th International Conference on Data Engineering (ICDE 2009), Shanghai, China, March 29-April 4, 2009.

Y. Liu, X. Huang, A. An, and X. Yu. Predicting the Helpfulness of Online Reviews,in Proceedings of 8th IEEE International Conference on Data Mining (ICDM 2008), Pisa, December, 2008.

Y. Liu, X. Huang, A. An, and X. Yu. HelpMeter: A Nonlinear Model for Predicting the Helpfulness of Online Reviews, in Proceedings of 2008 IEEE/WIC/ACM International Conference on Web Intelligence (WI 2008), Sydney, December, 2008.

Y. Liu, X. Yu, X. Huang, A. An. Blog Data Mining: the Predictive Power of Sentiments, a chapter in L. Cao, P.S. Yu, C. Zhang, H. Zhang (eds.): Data Mining for Business Applications, Springer. 2008.

K. Pu, X. Yu. Keyword Query Cleaning, in the 34th International Conference on Very Large Data Bases (VLDB 2008), Auckland, New Zealand, August 2008.

M. Hadjieleftheriou, X. Yu, N. Koudas, D. Srivastava. Selectivity Estimation of Set Similarity Selection Queries, in the 34th International Conference on Very Large Data Bases (VLDB 2008), Auckland, New Zealand, August 2008.


1. Apparatus, system, and method for performing fast approximate computation of statistics on query expressions, 美国专利号:US 7593931 B2

2. Method to estimate the number of distinct value combinations for a set of attributes in a database system,

美国专利号:US 8572067 B2

3. Selectivity estimation of set similarity selection queries, 美国专利号:US 8161046 B2


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