Dr Jiajun Liu

Adjunct Associate Professor

School of Electrical Engineering and Computer Science
Faculty of Engineering, Architecture and Information Technology


Dr. Jiajun Liu is Principal Research Scientist and Science Leader for the Distributed Sensing Systems Group (DSSG) at the CSIRO, and leads the Distributed Intelligence team in the DSSG. He is also an Adjunct Associate Professor@UQ. He received his PhD/BEng from the University of Queensland, Australia, and Nanjing University, China, in 2013 and 2006, respectively.

His research interest covers a range of topics in Machine Learning and Data Science, including efficient neural nets, graph learning, and multimedia/multimodal analytics. At CSIRO he is looking into how to make sensing systems more intelligent and efficient, by developing knowledge distillation and efficient neural architectures to enable efficient AI models on edge devices and distributed sensing applications.

He also serves as a reviewer/TPC member/Area Chair for numerous international journals and conferences, such as IEEE Transactions on Knowledge and Data Engineering, The VLDB Journal, IEEE Transactions on Multimedia, IEEE Transactions on Big Data, Clustering Computing, Ad Hoc Networks, Neurocomputing, Multimedia Systems, ACM Multimedia Conference 14' 21', CIKM 21', PAKDD 17~20', APWeb 16', etc.


View all Publications


  • Doctor Philosophy

  • Doctor Philosophy

  • Doctor Philosophy

View all Supervision


Journal Article

Conference Publication

  • Do, Brendan, Liu, Jiajun, Wang, Ziwei, Kusy, Brano, Merz, Torsten, Steven, Andy, Carlin, Geoffrey, Crosswell, Joseph, Li, Yang, Mortimer, Nicholas, Nayyeri, Fereshteh, Vanderklift, Mat and Wilson, Mark (2023). SkySea: Connecting Satellite, UAV and Underwater Imagery for Benthic Habitat Mapping. New York, NY, USA: ACM. doi: 10.1145/3607834.3616570

  • Zhang, Bingqing, Wang, Sen, Liu, Yifan, Kusy, Brano, Li, Xue and Liu, Jiajun (2023). Object Detection Difficulty: Suppressing Over-aggregation for Faster and Better Video Object Detection. New York, NY, USA: ACM. doi: 10.1145/3581783.3612090

  • Zhang, Shujie, Zheng, Tianyue, Chen, Zhe, Hu, Jingzhi, Khamis, Abdelwahed, Liu, Jiajun and Luo, Jun (2023). OCHID-Fi: Occlusion-Robust Hand Pose Estimation in 3D via RF-Vision. IEEE. doi: 10.1109/iccv51070.2023.01387

  • Li, Yaxian, Zhang, Bingqing, Zhao, Guoping, Zhang, Mingyu, Liu, Jiajun, Wang, Ziwei and Wen, Jirong (2022). InvisibiliTee: Angle-Agnostic Cloaking from Person-Tracking Systems with a Tee. 31st International Conference on Artificial Neural Networks, ICANN 2022, Bristol, United Kingdom, 6–9 September 2022. Cham, Switzerland: Springer. doi: 10.1007/978-3-031-15934-3_14

  • Ma, Junhua, Li, Jiajun, Liu, Yuxuan, Zhou, Shangbo and Li, Xue (2022). Integrating Dependency Tree into Self-Attention for Sentence Representation. ICASSP 2022 - 2022 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Singapore, 23-27 May 2022. Piscataway, NJ United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/ICASSP43922.2022.9747221

  • Ma, Junhua, Li, Jiajun, Li, Xueming and Li, Xu (2021). PathSAGE: Spatial Graph Attention Neural Networks with Random Path Sampling. 28th International Conference on Neural Information Processing ICONIP 2021, Bali, Indonesia, 8–12 December 2021. Heidelberg, Germany: Springer. doi: 10.1007/978-3-030-92270-2_10

  • Liu, Jiajun, Huang, Zi, Cheng, Hong, Chen, Yueguo, Shen, Heng Tao and Zhang, Yanchun (2013). Presenting diverse location views with real-time near-duplicate photo elimination. 29th IEEE International Conference on Data Engineering (ICDE), Brisbane, Australia, 8-12 April 2013. Washington, United States: IEEE. doi: 10.1109/ICDE.2013.6544851

  • Liu, Jiajun, Huang, Zi, Chen, Lei, Shen, Heng Tao and Yan, Zhixian (2012). Discovering areas of interest with geo-tagged images and check-ins. 20th ACM International Conference on Multimedia (MM'12), Nara, Japan, 29 October - 2 November 2012. New York, United States: ACM. doi: 10.1145/2393347.2393429

  • Yang, Yang, Yang, Yi, Huang, Zi, Liu, Jianjun and Ma, Zhigang (2012). Robust cross-media transfer for visual event detection. 20th ACM International Conference on Multimedia (MM'12), Nara, Japan, 29 October - 2 November 2012. New York, United States: ACM. doi: 10.1145/2393347.2396379

  • Huang, Zi, Shen, Heng Tao, Liu, Jiajun and Zhou, Xiaofang (2011). Effective data co-reduction for multimedia similarity search. 2011 ACM SIGMOD/PODS Conference, Athens, Greece, 12-16 June 2011. New York, United States: ACM (Association for Computing Machinery) Press. doi: 10.1145/1989323.1989430

  • Shen, Heng Tao, Shao, Jie, Huang, Zi, Yang, Yang, Song, Jingkuan, Liu, Jiajun and Zhu, Xiaofeng (2011). UQMSG experiments for TRECVID 2011. TREC Video Retrieval Evaluation, TRECVID 2011, Gaithersburg, MD, United States, 5 - 7 December 2011. National Institute of Standards and Technology.

Other Outputs

PhD and MPhil Supervision

Current Supervision

  • Doctor Philosophy — Associate Advisor

  • Doctor Philosophy — Associate Advisor

  • Doctor Philosophy — Associate Advisor

  • Doctor Philosophy — Associate Advisor