Cyberspace of Shujun LI

Dr. Shujun LI (李树钧)
Deputy Director
Surrey Centre for Cyber Security (SCCS) (an ACE-CSR)
Senior Lecturer (Associate Professor), Director of PGR (PhD) Studies
Department of Computer Science
University of Surrey
Guildford, Surrey, GU2 7XH, UK
Telephone: +44-(0)1483-68-6057
eLife@University of Surrey
Email: Google Mail, University of Surrey Mail (OpenPGP Public Key)
Social Networks: Shujun's articles @ SCCS blog LinkedIn Twitter ResearchGate Google+


Brief Biography (CV)

Shujun Li was born in Yanzhou, Jining, Shandong, China. He received his BE degree in Information Science and Engineering in 1997, and his PhD degree in Information and Communication Engineering in 2003 under supervision of Prof. Yuanlong Cai (蔡元龙) and Prof. Xuanqin Mou (牟轩沁), both from the Xi'an Jiaotong University (西安交通大学). During 2003 to 2005, he was a postdoctoral Research Assistant with the Department of Electronic Engineering, City University of Hong Kong (香港城市大学), under supervision of Prof. Guanrong (Ron) Chen (陈关荣). From 2005 to 2007, he was a postdoctoral fellow funded by The Hong Kong Polytechnic University (香港理工大学)'s Postdoctoral Fellowships Scheme, working at the Department of Electronic and Information Engineering with Dr. Kwok-Tung Lo (卢国栋). From 2007 to 2008, he was a Humboldt Research Fellow and doing his research at the FernUniversität in Hagen, Germany, hosted by Prof. Dr. Dr. Wolfgang A. Halang. From 2008 to 2011, he was a 5-Year Zukunftskolleg Research Fellow at the Universität Konstanz, Germany, and a junior faculty member of the Department of Computer and Information Science, working closely with Prof. Dr. Dietmar Saupe's group on Multimedia Signal Processing. In September 2011, he joined the Department of Computing (renamed to Department of Computer Science in August 2015), University of Surrey, UK, as a Senior Lecturer (Associate Professor). Since July 2014, he has been a Deputy Director of the Surrey Centre for Cyber Security (SCCS), leading the research theme Human-Centred Security. Since December 2014, he has been the Director of PGR (Postgraduate Research, i.e. PhD) Studies of the Department of Computing (Computer Science), University of Surrey. He has also been a member of the University of Surrey's University Ethics Committee since May 2015.

Since 2000, Shujun Li has published around 90 scientific papers, mainly in usable security, multimedia security, digital forensics and applications of chaos/fractals in computing. Shujun Li is a Senior Member of the IEEE (Computer Society, Signal Processing Society, Communications Society, Circuits and Systems Society, Consumer Electronics Society), a Professional Member of the ACM (SIGSAC, SIGMM, SIGCOMM) and a Global Member of the Internet Society (ISOC).

Research Interests

Word Cloud of Shujun's Research (click to enlarge) Main Interests: Usable Security and Privacy - password security and usability/graphical passwords/observer-resistant password systems (ORPSs)/identity management/CAPTCHA/e-banking security/social engineering/phishing/malware/security visualization/privacy enhancing technologies (PETs)/mobile security and privacy, Security Economics - e-banking security/identity theft/anti-phishing/economic modelling of security systems/e-payment/underground economy/economics of cyber crime, Multimedia Security - multimedia encryption and cryptanalysis/applications of discrete optimization in multimedia security/digital watermarking/steganography/information hiding/multimedia forensics/perceptual hashing, Digital and Multimedia Forensics, Human Modelling and Performance Evaluation Automation, Multimedia Computing - multimedia coding/visual quality assessment (VQA)/RVC (Reconfigurable Video Coding)/colorimetry, Crypto Tools Library (CTL), Chaos & Fractals in Computing - cryptanalysis of chaos-based cryptosystems/chaos in digital domain/applications of fractals for security

General Interests: Cyber Security and Privacy, Cyber Crime, Human Factors, Human-Computer Interface, Scientometrics, Nonlinear Science, Complex Networks

To Prospective Students

Shujun is actively seeking PhD students who are interested in various topics in cyber security, digital forensics, and multimedia coding. Click here to see a list of topics Shujun is currently offering to prospective PhD students.

Shujun is also actively seeking (visiting) UG/master's/PhD students who are interested in conducting short-term research projects under his supervision. This can be done either at Surrey locally or remotely via the Internet. He has been working with many UG/master's students from different countries (UK, Germany, China mainland, Hong Kong, Pakistan, Australia, Malaysia) on various projects many of which led to great publications (e.g. his ACSAC 2010 paper with two Pakistani UG students, his SOUPS 2011 paper with two Pakistani master's students and his hPIN/hTAN paper at FC 2011 with a German Diploma student). Currently, he is working with three master's students in China on a paper targeting a top security conference. Since 2012, he has been actively hosting visiting UG/PhD students from overseas especially China (including mainland and Hong Kong). Click here to see a list of short-term projects Shujun is currently offering to (visiting) UG/master's/PhD students.



Self-Citations Excluded:
h-index = 24 (estimated from data in Elsevier's Scopus)
h-index = 31 (estimated from data in ResearchGate)

Self-Citations Included:
h-index = 22 (estimated from data in Thomson Reuters's ResearcherID)
h-index = 25 (estimated from data in Elsevier's Scopus)
h-index = 35 (estimated from data in ResearchGate)
h-index = 36 (estimated from data in Google Scholar Citations)
g-index = 66 (estimated by Prof. Harzing's software "Publish or Perish", which is based on data in Google Scholar): Citation Report

Erdös Number = 3

  1. Paul Erdös emotion icon Prof. Charles K. Chui (崔锦泰) emotion icon Prof. Guanrong Chen (陈关荣) emotion icon Shujun Li
  2. Paul Erdös emotion icon Prof. Ron C. Mullin emotion icon Prof. Spyros S. Magliveras emotion icon Shujun Li

Selected Research Grants/Fellowships


  1. Shujun Li (PI) and Ben Shenoy, "Human-DLP: Human-assisted machine learning for bootstrapping DLP systems," jointly funded by Innovate UK, DMCS (Department for Culture, Media & Sport) and Clearswift Ltd as a KTP (Knowledge Transfer Partnership), funding amount £192,003 (£128,642 from Innovate UK and DCMS), 2016-2019 (36 months)
  2. Shujun Li (PI) and Patrice Rusconi, "COMMANDO-HUMANS: COMputational Modelling and Automatic Non-intrusive Detection Of HUMan behAviour based iNSecurity," funded by Engineering and Physical Sciences Research Council (EPSRC) (EP/N020111/1), funding amount £208,100 (80% fEC), 1 April 2016 – 30 April 2018 (25 months)
  3. Dietmar Saupe, Shujun Li (CI) and Tamás Szirányi, "Image/Video Quality Assessment: From Test Databases to Similarity-Aware and Perceptual Dynamic Metrics," Subproject A05 of SFB/Transregio (transregionalen Sonderforschungsbereiches, Transregional Collaborative Research Center in English) 161 "Quantitative Methods for Visual Computing", funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation), total funding amount of SFB/Transregio 161 €~8m, 1 July 2015 – 30 June 2019 (48 months)
  4. Steve Schneider, Mark Manulis and Shujun Li (CI), "Academic Centre of Excellence in Cyber Security Research - University of Surrey," funded by Government Communications Headquarters (GCHQ) in partnership with the Engineering and Physical Sciences Research Council (EPSRC), funding amount £19,942.40 (80% fEC), 1 July 2015 – 30 June 2017 (24 months)


Selected Publications

Professional Activities

Journal Editorships: Conference Organization Committee Memberships: Conference Program Committee Memberships: Technical Committee/Experts Group Memberships:


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