Welcome to Wei Wang's Homepage

We all have two lives. The second one starts when we realize that we only have one.        --- Tom Hiddleston

Wei Wang Photo Wei Wang

Associate Professor
School of Computer Science and Engineering
University of New South Wales, Australia

Email: weiw AT cse.unsw.edu.au
Phone: +61 2 9385 7162
Fax: +61 2 9385 5995


[Research], [Selected Publications], [Professional Activities], [Teaching], [Short Biography], and [Fun]


May 2015 Source code of our SRS method released on github: https://github.com/DBWangGroupUNSW/SRS.
Nov 2014 Another VLDB 2015 paper accepted without revision, making it three so far.
Feb 2014 We have been successful in being awarded the Data to Decisions (D2D) CRC ($25 million for 5 years).
See official announcement here.
Aug 2013 We are currently involved in the D2D CRC project.

Many sectors are facing great opportunities and challenges from an increasing deluge of data; resources, health and manufacturing to name a few. Australia's Defence and National Security sector however, faces the most imminent and complex Big Data challenges. The Defence and National Security community is often faced with a daunting challenge: to seek the proverbial needle in the haystack. They attempt to find connections in vast, disparate volumes of data that are imperceptible to humans, but which can be discovered with smart analytics and machine enablement. This challenge is made greater by the wide variety of data sources, and the ever increasing size and scale of the data that is being collected by Defence and National Security agencies.
The D2D CRC will bring together world-class capabilities and establish a research collaboration framework across academia, industry and Government to collectively tackle Defence and National Security Big Data challenges and grow Australia's broader capacity for data innovation.
Apr 2013 Recently, we have several papers on similarity query processing accepted (PVLDB 2013, SIGMOD 2013, SSDBM 2013, TODS 2013). More on the Similarity Query Processing Project.
Apr 2013 APWeb 2013 was held successfully, with the help and support from the organizing committees, participants, sponsors, and volunteers. You can now find some of the keynote/tutorial slides, as well as photos on the APWeb 2013 conference website.
Jan 2013 ICDE 2014 will be held in Chicago, USA between 7 and 11 April, 2014. I am the PC Area Chair for the track "Strings, Texts and Keyword Search".
Nov 2012 We successfully obtained two ARC Discovery Project grants on Record Linkage and Spatial Keyword Search respectively.
Sept 2012 Media report on the similarity and keyword search projects in the UNSW Engineering Research Report 2012 (a local copy of the report can be found here).
Sept 2012 APWeb 2013 paper submission deadline is less than a month away (6 Oct 2012).
Jan 2012 Jianbin Qin won the 2011 CiSRA Best Research Paper Award for his paper "Efficient Exact Edit Similarity Query Processing with the Asymmetric Signature Scheme".
Nov 2011 Jiaheng Lu and I are co-chairing the The Third International Workshop on Keyword Search on Structured Data (KEYS 2012) co-located with SIGMOD 2012 at Scottsdale, USA. Here is the link to the call for paper.
Sept 2011 We have two paper accepted by ICDE 2012 and another survey paper by Chinese Journal of Computers.
Apr 2011 Our ICDE11 Keyword Search tutorial ("Keyword-based Search and Exploration on Databases") slides available at our SPARK project homepage.
Feb 2011 We have one paper accepted by SIGMOD 2011.
Feb 2011 Fixed the display problem in IE + new CSS tricks (@font-face + Google web fonts), requires IE 4.0+, Firefox 3.5+, Opera 10.0+, Safari 3.1+, Chrome 4+.
Oct 2010 We have two research papers and a tutorial (all related to keyword queries) accepted by ICDE2011.
May 2010 A bunch of ruby scripts to calculate one's h-index or g-index based on Google Scholar, analyze citations, is published online at here.
Jul 2009 Our paper "Suggestion of Promising Result Types for XML Keyword Search" has been accepted by EDBT 2010.
Sept 2009 Sherif and I are organizing the GDM 2010 workshop co-located with DASFAA 2010.
Sept 2009 We have two full research papers accepted at ICDE10.
Jul 2009 Our SIGMOD09 Keyword Search tutorial slides available at the SPARK Project page.
May 2009 Our paper "Lazy Updates: An Efficient Technique to Continuously Monitoring Reverse kNN" (with Muhammad Aamir Cheema, Xuemin Lin, Ying Zhang, and Wenjie Zhang) is accepted by VLDB 2009.
Mar 2009 Yi Chen, Xuemin Lin and I will give a three-hour tutorial titled "Keyword Search on Structured and Semi-structured Data" at the SIGMOD 2009 conference.
Feb 2009 Our recent publications on Similarity Joins: Top-k Set Similarity Joins (ICDE 2009), and Approximate Entity Extraction with Edit Distance Constraints (SIGMOD 2009).
Jan 2009 ARC-funded PhD Scholarship is available for the "Effective and Efficient Video Search" project. Interested candidates should contact me for further details.
Oct 2008 We've just released our system that performs (self-) similarity join with several commonly-used similarity functions (ppjoin/ppjoin+ for Jaccard and cosine similarity, and Ed-Join for edit distance). For more information about the system, paper and other resources, please visit our Efficient Similarity Query Processing Project (Previously known as 'Similarity Join' project) site.

More ...


Research Interests

My general research interests center around query processing and optimization in database systems and novel data management applications, including:

Research Projects

Below are a proper subset of projects that I am working on. You can also find some general descriptions and useful resources (paper, presentation/tutorial slides, prototype systems, and datasets) there.

Research Grants

Current Students

Graduated Students

Selected Publications

So far, no system (Google Scholar, DBLP, MS Academic Search, Arnetminer, CiteSeerX, or DBLife) can disambiguate publications of dozens of "Wei Wang" well. This is dubbed the Wei Wang challenge in DBLP.

Below is a list of my major publications and a fairly complete list of publications can be found at My Citations@Google Scholar. Unfortunately, both are manually curated and may not be so up-to-date.

These documents are made available to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All parties copying this information are expected to adhere to the terms and constraints invoked by each copyright holder. In most cases, these documents may not be reposted without the explicit permission of the copyright holder. Other restrictions to copying individual documents may apply.

Professional Activities


Education is what survives when what has been learned has been forgotten. 

                            -- B. F. Skinner, New Scientist, May 21, 1964

Short biography

Dr. Wei Wang is an Associate Professor in the School of Computer Science and Engineering, The University of New South Wales, Australia. He received his Ph.D. in Computer Science from The Hong Kong University of Science and Technology, Hong Kong, China, in 2004, and B.Eng. in Computer Science and Engineering from Shanghai Jiao Tong University, Shanghai, China, in 1999.

His current research interests include similarity query processing, keyword search on (semi-)structured data, and spatial and multidimensional databases.

He has published over ninety research papers in these areas, with many in premier database journals (such as TODS, VLDB J, and TKDE) and conferences (such as SIGMOD, VLDB, and ICDE). The total number of citations is 3,746 according to Google Scholar in February 2014. He has also given tutorials and invited talks at various conferences, including SIGMOD 2009 and ICDE 2011.

He frequently serves as an organizer or program committee member for major international conferences and workshops. He is the PC co-chair of Asia Pacific Web Conference 2013, and the PC Area Chair of ICDE 2014 for the track of "Strings, Texts and Keyword Search".


desktop entropy

Tools and Tips



I hear ... and I forgot
I see ... and I remember
I do ... and I understand

                                                   -- Confucius
If you're not failing every now and again, it's a sign you're not
doing anything very innovative.

                                                   -- Woody Allen
The greatest discovery of our generation is that human beings can
alter their lives by altering their attitudes of mind. As you think,
so shall you be.

                                                 -- William James
The invisible is only the visible hidden.

                                                 -- René Magritte

The most exciting phrase to hear in science, the one that heralds 
new discoveries, is not 'Eureka!' but 'That's funny...' 

                                                   -- Isaac Asimov  

To live is the rarest thing in the world. Most people exist, that is
                                                   -- Oscar Wilde  

You are Visitor No: since July 1, 2001.

eXTReMe Tracker Wei Wang