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

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]


Oct 2016 We have published the source code and the paper experimental study of approximate nearest neighbor searches with L2 distance in high-dimensional space at NNS Benchmark @ github and Approximate Nearest Neighbor Search on High Dimensional Data --- Experiments, Analyses, and Improvement (v1.0) @ arXiv, respectively.
Feb 2016 UNSW Knowledge Graph Research Group homepage online at http://kg.cse.unsw.edu.au. Contact me if you are interested in the topic or would like to get involved as a project/research student or postdoc.
Nov 2015 We have several PhD positions open, with topics in data management, algorithms, machine learning and data mining, and natural language processing, on big data. Both full and half scholarships are available for excellent candidates. Typically, this requires 80+ average marks in a top-tier university in your country. Anyone interested can directly send the resume and undergraduate and postgraduate transcripts to me.
Nov 2015 We have several openings for Postdoctoral Research Fellows to work on topics of Knowledge Base Construction and Curation, and Applications for Knowledge bases (e.g., Question Answering). A good track record in related areas is a prerequisite. Anyone interested can directly send the resume to me.
July 2015 We have our the gapped set intersection estimation paper accepted at CIKM 2015.
July 2015 "Life is a succession of lessons which must be lived to be understood." --- Helen Keller
May 2015 Source code of our SRS method released on github: https://github.com/DBWangGroupUNSW/SRS.
Nov 2014 We have our third VLDB 2015 paper accepted.
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".

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 a 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 knowledge graphs, 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