Dr. Guanfeng Liu (PhD)
Lecturer/Assistant Professor
Program Leader of Master of Information System Management (MISM)
Smart System and Data Engineering Research Group
Department of Computing
Macquarie University
Sydney, Australia, 2109

Office: BD Building, Level 3
Email: guanfeng.liu [at] mq.edu.au
Tel: +61-2-9850-9541
Fax: +61-2-9850-9551


Dr. Guanfeng Liu is a Lecturer/Assistant Professor in Department of Computing , Macquarie University, Sydney, Australia. Guanfeng got his PhD in computer science from Macquarie University in 2013, his MEng degree in computer software and theory from Qingdao University (QDU), China in 2008, and his BEng degree in computer science and technology from Qingdao University of Science and Technology (QUST), China in 2005. His research interests include service computing, trust computing, and social network mining.



Research Interests and Projects


Call for Research Students (PhD Scholarship Available)
I am seeking highly motivated and focused students with Backgrounds & Interests in Computer Science, Mathematics, and Engineering.

Honors and Awards
Research Supervision


Research Grants


Selected Publications

International Journal Papers
  1. Guohao Sun, Guanfeng Liu, Yan Wang, Mehmet A. Orgun, Quan Z. Sheng and Xiaofang Zhou, Incremental Graph Pattern based Node Matching with Multiple Updates, IEEE Transactions on Knowledge and Data Engineering (TKDE) (accepted in September 2019).
  2. Lai Qian, Guanfeng Liu, Fei Zhu, Zhixu Li, Yu Wang and An Liu, Enhancing User Experience of Task Assignment in Spatial Crowdsourcing: A Self-adaptive Batching Approach, IEEE ACCESS (accepted in August 2019).
  3. Guanfeng Liu, Yurong Wang, Zhixu Li, Bolong Zheng, and Kai Zheng, Strong Social Graph Based Trust-Oriented Graph Pattern Matching with Multiple Constraints, IEEE Transactions on Emerging Topics in Computational Intelligence (TETCI) (accepted in May 2019).
  4. Yan Zhao, Kai Zheng, Defu Lian, Bolong Zheng, Guanfeng Liu, and Xiaofang Zhou, Reference-based Framework for Spatio-temporal Trajectory Compression and Query Processing, IEEE Transactions on Knowledge and Data Engineering (TKDE) (accepted in April 2019).
  5. Dongjun Zhai, Yue Sun, An Liu, Zhixu Li, Guanfeng Liu Lei Zhao, and Kai Zheng, A Novel Hybrid Publication Recommendation System Using Compound Information, World Wide Web Journal, 22(5): 2017-2040, September 2019.
  6. Qiang Yang, Zhixu Li, An Liu, Guanfeng Liu, Lei Zhao, Xiangliang Zhang, Min Zhang, and Xiaofang Zhou, A Novel Hybrid Publication Recommendation System Using Compound Information, World Wide Web Journal, May 2019.
  7. Junwen Lu, Guanfeng Liu, Keshou Wu, and Wenjiang Qin, Location-Aware Web Service Composition Based on the Mixture Rank of Web Services and Web Service Requests, Complexity, Volume 2019.
  8. Anqi Zhao, Guanfeng Liu, Bolong Zheng, Yan Zhao, and Kai Zheng, Temporal Paths Discovery with Multiple Constraints in Attributed Dynamic Graphs, World Wide Web Journal (accepted in January 2019).
  9. Guanfeng Liu, Qun Shi, Kai Zheng, An Liu, Zhixu Li and Xiaofang Zhou, An Efficient Method for Top-K Graph Based Node Matching, World Wide Web Journal 22(3): 945-966, May 2019.
  10. Guanfeng Liu, Kai Zheng, An Liu, Zhixu Li, Yang Wang and Xiaofang Zhou, MCS-GPM: Multi-Constrained Simulation Based Graph Pattern Matching in Contextual Social Graphs, IEEE Transactions on Knowledge and Data Engineering (TKDE) 30(6), June, 2018.
  11. Guanfeng Liu, Yi Liu, Kai Zheng, Zhixu Li, An Liu, Yan Wang and Xiaofang Zhou, Context-Aware Trust Network Extraction in Large-Scale Trust-Oriented Social Networks, World Wide Web Journal 21(3): 713-738, May, 2018.
  12. An Liu, Weiqi Wang, Zhixu Li, Guanfeng Liu, Qing Li and Xiaofang Zhou, A Privacy-Preserving Framework for Trust-Oriented Point-of-Interest Recommendation, IEEE ACCESS Vol. 6, pp. 393-404, October, 2017.
  13. Yang Zhao, Guanfeng Liu, Kai Zheng, An Liu, Zhixu Li and Xiaofang Zhou, A context-aware approach for trustworthy worker selection in social crowd, World Wide Web Journal 20(6): 1211-1235, 2017.
  14. Binbin Gu, Zhixu Li, Qiang Yang, Qing Xie, An Liu, Guanfeng Liu, Kai Zheng, Xiangliang Zhang, Web-ADARE: A Web-Aided Data Repairing System, Neurocomputing, March 2017.
  15. Jie Zhu, Wei Jiang, An Liu, Guanfeng Liu, and Lei Zhao Effective and efficient trajectory outlier detection based on time-dependent popular route, World Wide Web Journal 20(1): 111-134, 2017.
  16. Binbin Gu, Zhixu Li, Xiangliang Zhang, An Liu, Guanfeng Liu, Kai Zheng, Lei Zhao, and Xiaofang Zhou, The Interaction between Schema Matching and Record Matching in Data Integration, IEEE Transactions on Knowledge and Data Engineering (TKDE) 9(1): 186-199, 2017.
  17. Kai Zheng, Bolong Zheng, Jiajie Xu, Guanfeng Liu, An Liu and Zhixu Li, Popularity-aware spatial keyword search on activity trajectories, World Wide Web Journal 20(4): 749-773, 2017.
  18. Pengpeng Zhao, Hanhan Jiang, Jiajie Xu, Victor S. Sheng, Guanfeng Liu, An Liu, Jian Wu, and Zhiming Cui, Location-Aware Publish/Subscribe Index with Complex Boolean Expressions, World Wide Web Journal 20(6): 1363-1384, 2017.
  19. Guanfeng Liu, Feng Zhu, Kai Zheng, An Liu, Zhixu Li, Lei Zhao and Xiaofang Zhou, TOSI: A Trust-Oriented Social Influence Evaluation Method in Contextual Social Networks, Neurocomputing Vol 201, 130-140, 2016.
  20. Yan Wang, Lei Li and Guanfeng Liu, Social Context-Aware Trust Inference for Trust Enhancement in Social Network based Recommendations on Service Providers, World Wide Web Journal Vol.18, Issue 1, 2015.
  21. Guanfeng Liu, Yan Wang, Mehmet A. Orgun and Ee-Peng Lim. Finding the Optimal Social Trust Path for the Selection of Trustworthy Service Providers in Complex Social Networks, IEEE Transactions on Services Computing (TSC), Volume 6, Issue 2, 2013.
  22. Yongsheng Hao, Guanfeng Liu and Na Wen, An Enhanced Load Balancing Mechanism Based on Deadline Control on GridSim, Future Generation Computer Systems, Vol.28, No.4, April, 2012.
International Conference Papers
  1. Bolong Zheng, Chenze Huang, Christian S. Jensen, Lu Chen, Nguyen Quoc Viet Hung, Guanfeng Liu, Guohui Li, and Kai Zheng, Online Trichromatic Pickup and Delivery Scheduling in Spatial Crowdsourcing, ICDE 2020.
  2. Huizhao Wang, Guanfeng Liu, Yan Zhao, Bolong Zheng, Pengpeng Zhao, and Kai Zheng, A Dynamic Multi-faceted Fine-grained Preference Model for Recommendation, ICDM 2019.
  3. Pengfei Ding, Guanfeng Liu, Pengpeng Zhao, An Liu, Zhixu Li, and Kai Zheng, Reinforcement Learning Based Monte Carlo Tree Search for Temporal Path Discovery, ICDM 2019.
  4. Feng Zhu, Chaochao Chen, Yan Wang, Guanfeng Liu, and Xiaolin Zheng, DTCDR: A Framework for Dual-Target Cross-Domain Recommendation, CIKM 2019.
  5. He Zhao, Lan Du, Guanfeng Liu, and Wray Buntine, Leveraging Meta Information in Short Text Aggregation, ACL 2019.
  6. Huizhao Wang, Guanfeng Liu, An Liu, Zhixu Li and Kai Zheng, DMRAN:A Hierarchical Fine-Grained Attention-Based Network for Recommendation, IJCAI 2019.
  7. Jinfu Xia, Yan Zhao, Guanfeng Liu, Jiajie Xu, Min Zhang and Kai Zheng, Profit-driven Task Assignment in Spatial Crowdsourcing, IJCAI 2019.
  8. Tingting Zhang, Pengpeng Zhao, Yanchi Liu, Victor Sheng, Jiajie Xu, Deqing Wang, Guanfeng Liu and Xiaofang Zhou, Feature-level Deeper Self-Attention Network for Sequential Recommendation, IJCAI 2019.
  9. Yifan Zhang, An Liu, Guanfeng Liu, Zhixu Li and Qing Li, Deep Representation Learning of Activity Trajectory Similarity Computation, ICWS 2019 (research track).
  10. Yan Zhao, Jinfu Xia, Guanfeng Liu, Han Su, Defu Lian, Shuo Shang and Kai Zheng, Preference-aware Task Assignment in Spatial Crowdsourcing, AAAI 2019.
  11. Ying He, Zhixu Li, Guanfeng Liu, Fangfei Cao, Zhigang Chen, Ke Wang and Jie Ma, Bootstrapped Multi-Level Distant Supervision for Relation Extraction, WISE 2018 (The Best Student Paper Award).
  12. Guohao Sun, Guanfeng Liu, Yan Wang, Mehmet A Orgun, and Xiaofang Zhou, Incremental Graph Pattern Based Node Matching, ICDE 2018.
  13. Feng Zhu, Yan Wang, Chaochao Chen, Guanfeng Liu, Mehmet A. Orgun, and Jia Wu, A Deep Framework for Cross-Domain and Cross-System Recommendations, IJCAI 2018.
  14. Binbin Gu, Zhixu Li, Xiangliang Zhang, An Liu, Guanfeng Liu, Kai Zheng, Lei Zhao, and Xiaofang Zhou, The Interaction between Schema Matching and Record Matching in Data Integration, ICDE 2017.
  15. Meng Hu, Zhixu Li, Yongxin Shen, An Liu, Guanfeng Liu, Kai Zheng and Lei Zhao, CNN- IETS: A CNN-based Probabilistic Approach for Information Extraction by Text Segmentation, CIKM 2017.
  16. Shushu Liu, An Liu, Zhixu Li, Guanfeng Liu, Jiajie Xu, Lei Zhao and Kai Zheng, Privacy-Preserving Collaborative Web Services QoS Prediction via Differential Privacy, APWeb-WAIM 2017 (The Best Paper Award).
  17. Qun Shi, Guanfeng Liu, Zhixu Li, An Liu, Kai Zheng, Lei Zhao and Xiaofang Zhou, Pattern Based Top-K Designed Nodes Finding in Contextual Social Graphs, ICWS 2017.
  18. Feng Zhu, Guanfeng Liu, Yan Wang, Mehmet A Orgun, An Liu, Zhixu Li and Kai Zheng, A Robust Approach to Finding Trustworthy Influencers in Social E-Commerce Environments, ICSOC 2016.
  19. Guanfeng Liu, Yan Wang, Mehmet A Orgun, Xiaoming Zheng, An Liu, Zhixu Li and Kai Zheng, Strong Social Component-Aware Trust Sub-network Extraction in Contextual Social Networks, ICWS 2016.
  20. Jie Zhu, Wei Jiang, An Liu, Guanfeng Liu, Jiajie Xu and Lei Zhao, Time-dependent Popular Routes Based Trajectory Outlier Detection, WISE 2015. (Best Paper Runner Up)
  21. Feng Zhu, Guanfeng Liu, Yan Wang, An Liu, Zhixu Li, Pengpeng Zhao and Lei Li, A Context-Aware Trust-Oriented Influencers Finding in Online Social Networks, ICWS 2015.
  22. Guanfeng Liu, Kai Zheng, Yan Wang, Mehmet A. Orgun, An Liu, Lei Zhao and Xiaofang Zhou, Multi-Constrained Graph Pattern Matching in Large-Scale Contextual Social Graphs, ICDE 2015.
  23. An Liu, Kai Zheng, Lu Li, Guanfeng Liu, Lei Zhao and Xiaofang Zhou, Efficient Secure Similarity Computation on Encrypted Trajectory Data, ICDE 2015.
  24. Xiaoming Zheng, Yan Wang, Mehmet A. Orgun, Guanfeng Liu and Haibin Zhang, Social Context-aware Trust Prediction in Social Networks, ICSOC 2014.
  25. Xiaoming Zheng, Yan Wang, Mehmet A. Orgun, Youliang Zhong and Guanfeng Liu, Trust Prediction with Propagation and Similarity Regularization, AAAI 2014.
  26. Guanfeng Liu, An Liu, Yan Wang and Lei Li, An Efficient Multiple Trust Paths Finding Algorithm for Trustworthy Service Provider Selection in Real-Time Online Social Network Environments, ICWS 2014.
  27. Guanfeng Liu and Yan Wang, Social Context-Aware Trust Network Discovery in Complex Contextual Social Networks, AAAI 2012.
  28. Guanfeng Liu Yan Wang and Mehmet A. Orgun, Social Context-Aware Trust Network Discovery in Complex Contextual Social Networks, TrustCom 2012.
  29. Guanfeng Liu, Yan Wang, Mehmet A. Orgun and Huan Liu, Discovery Trust Networks for the Selection of Trustworthy Service Providers in Complex Contextual Social Networks, ICWS 2012.
  30. Guanfeng Liu, Yan Wang and Mehmet A. Orgun, Trust Transitivity in Complex Social Networks, AAAI 2011.
  31. Guanfeng Liu, Yan Wang and Mehmet A. Orgun, Finding K Optimal Social Trust Paths for Trustworthy Service Provider Selection in Complex Social Networks, ICWS 2011.
  32. Guanfeng Liu, Yan Wang and Mehmet A. Orgun, Optimal Social Trust Path Selection in Complex Social Networks, AAAI 2010.
  33. Guanfeng Liu, Yan Wang, Mehmet A. Orgun and Ee-Peng Lim, A Heuristic Algorithm for Trust-Oriented Service Provider Selection in Complex Social Networks, SCC 2010. (Best Paper Award)
  34. Guanfeng Liu, Yan Wang and Mehmet A. Orgun, Quality of Trust for Social Trust Path Selection in Complex Social Networks, AAMAS 2010.


Working and Visiting
  • Lecturer/Assistant Professor, Macquarie University, Sydney, Australia, June 2018 - now
  • Visiting Senior Lecturer, The University of Queensland, Brisbane, Australia, June 2017 - June 2018
  • Associate Professor, Soochow University, China, October 2013 - June 2017
  • Visiting Scholar, Macquarie University, Sydney, Australia, August 2015
  • Visiting Scholar, The University of New South Wales (UNSW), Sydney, Australia, February 2015
  • Visiting Research Fellow, The University of Technology Sydney, Sydney, Australia, February 2013 - August 2013
  • Research Fellow, Macquarie University, Sydney, Australia, April 2011 - September 2013
  • Research Assistant, Macquarie University, Sydney, Australia, July 2010 - March 2011


Teaching
  • Big Data Technology, Macquarie University, S2 2019 (for Postgraduate Students, Lecturer)
  • Introduction to Systems Design and Data Management, Macquarie University, S1 2019 (for Undergraduate Students, Lecturer)
  • Advanced System and Network Security, Macquarie University, S2 2018 (for Postgraduate Students, Lecturer)
  • Enterprise Systems Integration, Macquarie University, S2 2018, S2 2019 (for Undergraduate Students, Lecturer)
  • Advanced Technology for High Dimensional Data, The University of Queensland, S1 2018 (for Postgraduate Students, Course Coordinator and Lecturer)
  • Information Retrieval and Web Search, The University of Queensland, S2 2017 (for Postgraduate Students, Course Coordinator and Lecturer)
  • Database System Concepts, Soochow University, S1 2015, 2017 (Lecturer)
  • Advanced Database Technology, Soochow University, S2 2014, 2015, 2016 (Lecturer)
  • Web Information Development, Soochow University, S1 2014 (Lecturer)
  • Web Technology, Macquarie University, 2013 (Lecturer)
  • Applications Modelling and Development, Macquarie University, 2010 (Lecturer)


Professional Services
  • Editorial board, Frontiers in Big Data, Frontiers, Since 2018.
  • General Co-Chair, The 9th EAI International Conference on Cloud Computing (CloudComp2019), 4-5 December, 2019, Sydney, NSW, Australia.
  • General Co-Chair, The International Workshop on Web Information Systems in the Era of AI in conjunction with WISE 2019, 26-30 November, 2019, Hong Kong, China.
  • Guest Editor, Special issue on Graph Data Management in Online Social Networks, World Wide Web Journal (SCI, CCF B), 2019.
  • Guest Editor, Special issue on Trust, Privacy, and Security in Crowdsourcing Computing, World Wide Web Journal (SCI, CCF B), 2018.
  • PC Co-Chair, Australasian Web Conference 2020 (AWC2020), 2-7 February, 2020, Melbourne, VIC, Australia.
  • PC Co-Chair, Australasian Web Conference 2019 (AWC2019), 29-31 January, 2019, Sydney, NSW, Australia.
  • PC Co-Chair, The Second International Workshop on Big Data Management and Service (BDMS2015) in conjunction with DASFAA 2015, Hanoi, Vietnam, 20-23 April, 2015.
  • PC Co-Chair, The First Internal Workshops on Knowledge Acquisition, Representation and Management (KARM 2017) in conjunction with WISE 2017, Moscow, Russia, 7-11 October, 2017.
  • Publication Chair: APWeb2014, APWeb2016, BESC2016
  • Publicity Chair: ATC2013, ATC2014
  • PC Member: AAAI2020, DASFAA2020, ECAI2020, SCC2020
  • PC Member: CIKM2019, KDD2019, IJCAI2019, AAAI2019, WISE2019, AI2019, BigComp2019, NDBC2019, IEEE DSC2019, IEEE SCC2019
  • PC Member: DASFAA2018, NDBC2018, IJCAI2018, IEEE SCC2018, IEEE BigComp2018
  • PC Member: ICYCSEE2017, BESC2017, IoP2017, NDBC2017, SOCA2017
  • PC Member: ICWS2016, ICSOC2016, BESC2016, APWEB2016, TrustCom2016
  • PC Member: APWeb2015, BESC2015, TrustCom2015
  • PC Member: APWeb2014, ATC2014