Recent News

• [Dec. 2011] I am now on the job market.
• [Nov. 2011] I successfully pass my preliminary thesis exam. My thesis committee includes Prof. Jiawei Han, Prof. Kevin Chen-Chuan Chang, Prof. Chengxiang Zhai and Dr. Charu Aggarwal.
• [Oct. 2011] Out paper "gSketch: On Query Estimation in Graph Streams" has been accepted by PVLDB 5(3) and will appear in VLDB'12.
• [Sept. 2011] In Fall 2011, I am teaching CS411: Database Systems.
• [Jun. 2011] I get ACM SIGMOD travel grant to attend SIGMOD'11 at Athens, Greece.

  Bio Sketch

          My name is Peixiang Zhao, a 5th year Ph.D. student at Department of Computer Science, University of Illinois at Urbana-Champaign. I am affiliated with the Data Mining Research Group and the Data and Information Systems Laboratory. I am fortunate to have Prof. Jiawei Han as my advisor.

          I got my B.S. and M.S. degree from Department of Computer Science and Technology (it now becomes School of Electronics Enginnering and Computer Science) in Peking University at 2001 and 2004, respectively. Between 2004 and 2007, I was a Ph.D. student at Department of Systems Engineering and Engineering Management, the Chinese University of Hong Kong. I was a member of the Database Research Group, supervised by Prof. Jeffrey Xu Yu.

  Research Overview

        My research interest lies in data mining, database systems and data-intensive computation and analytics in general. More specifically, I have been focused on the problems in modeling, querying and mining graph-structured data, such as large-scale graph databases, information networks and social networks, which have been witnessed extremely popular and flourishing in a wide spectrum of application domains, such as bioinformatics, computer systems, business processes and ultimately, the Web.

          I have been involved in the following projects at UIUC:

            Information Network Academic Research Center                        BeeSpace

  Selected Publications

          For a fairly complete publication list, please go check Research page.

• [VLDB'12] Peixiang Zhao, Charu Aggarwal, Min Wang. gSketch: On Query Estimation in Graph Streams. To appear in the 38th International Conference on Very Large Data Bases . 193-204. Istanbul, Turkey. Aug. 2012. (full paper) [ Paper ]
• [SIGMOD'11] Peixiang Zhao, Xiaolei Li, Dong Xin, Jiawei Han. Graph Cube: On Warehousing and OLAP Multidimensional Networks. In the 2011 ACM International Conference on Management of Data (SIGMOD'11). 853-864. Athens, Greece. Jun. 2011. (full paper, acc. rate=23%) [ Paper | Slides ]
• [VLDB'10] Peixiang Zhao, Jiawei Han. On Graph Query Optimization in Large Networks. In the 36th International Conference on Very Large Data Bases (VLDB'10). 340-351. Singapore. Sept. 2010. (full paper, acc. rate=15.8%) [ Paper | Slides ]
• [CIKM'09] Peixiang Zhao, Jiawei Han, Yizhou Sun. P-Rank: A Comprehensive Structural Similarity Measure over Information Networks. In the 18th ACM Conference on Information and Knowledge Management (CIKM'09). 553-562. Hong Kong, China. Nov. 2009. (full paper, acc. rate=14.5%) [ Paper | Slides ]
• [VLDB'07] Peixiang Zhao, Jeffrey Xu Yu, and Philip S. Yu. Graph Indexing: Tree + Delta >= Graph. In the 33rd International Conference on Very Large Data Bases (VLDB'07). 91-102. Vienna, Austria. Sept. 2007. (full paper, acc.rate=16.4%) [ Paper | Slides ]

  Industrial Experiences

          I had extensive industrial experiences as summer interns in major industrial research labs:

• [May 2011 --- Aug. 2011]   Web Search and Mining Group (WSM), Microsoft Research Asia
  • Manager: Dr. Haixun Wang
  • Topic: Maximal clique enuemration from Internet-scale graphs: a vertex-centric approach on Trinity
• [May 2010 --- Aug. 2010]   Sensing and Energy Research Group (SERG), Microsoft Research Redmond
  • Mentor: Dr. Dimitrios Lymberopoulos
  • Manager: Dr. Jie Liu
  • Topic: Location-aware click prediction on mobile local search
• [Jun. 2009 --- Aug. 2009]   IBM T. J. Watson Research Center, Yorktown Heights, NY
  • Mentor: Dr. Amol Ghoting
  • Manager: Dr. Edwin Pednault
  • Topic: HadoopML: a parallel data mining and machine learning infrastructure over Hadoop
• [May 2008 --- Aug. 2008]   IBM T. J. Watson Research Center, Hawthorne, NY
  • Mentor: Dr. Charu Aggarwal
  • Manager: Dr. Min Wang
  • Topic: Query estimation on massive graph streams