Overview
Background
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.
Availability
- Associate Professor Jiajun Liu is:
- Available for supervision
Works
Search Professor Jiajun Liu’s works on UQ eSpace
2024
Book Chapter
LLM as Copilot for Coarse-Grained Vision-and-Language Navigation
Qiao, Yanyuan, Liu, Qianyi, Liu, Jiajun, Liu, Jing and Wu, Qi (2024). LLM as Copilot for Coarse-Grained Vision-and-Language Navigation. Lecture Notes in Computer Science. (pp. 459-476) Cham: Springer Nature Switzerland. doi: 10.1007/978-3-031-72652-1_27
2024
Conference Publication
BuildingSage: A safe and secure AI copilot for smart buildings
Dedeoglu, Volkan, Zhang, Qianggong, Li, Yang, Liu, Jiajun and Sethuvenkatraman, Subbu (2024). BuildingSage: A safe and secure AI copilot for smart buildings. New York, NY, USA: ACM. doi: 10.1145/3671127.3699677
2024
Conference Publication
Navigating Beyond Instructions: Vision-and-Language Navigation in Obstructed Environments
Hong, Haodong, Wang, Sen, Huang, Zi, Wu, Qi and Liu, Jiajun (2024). Navigating Beyond Instructions: Vision-and-Language Navigation in Obstructed Environments. New York, NY, USA: ACM. doi: 10.1145/3664647.3681640
2024
Conference Publication
ROLeR: Effective Reward Shaping in Offline Reinforcement Learning for Recommender Systems
Zhang, Yi, Qiu, Ruihong, Liu, Jiajun and Wang, Sen (2024). ROLeR: Effective Reward Shaping in Offline Reinforcement Learning for Recommender Systems. 33rd ACM International Conference on Information and Knowledge Management (CIKM), Boise Id, Oct 21-25, 2024. New York, NY, USA: ACM. doi: 10.1145/3627673.3679633
2024
Conference Publication
GTP-ViT: efficient vision transformers via graph-based token propagation
Xu, Xuwei, Wang, Sen, Chen, Yudong, Zheng, Yanping, Wei, Zhewei and Liu, Jiajun (2024). GTP-ViT: efficient vision transformers via graph-based token propagation. 2024 IEEE/CVF Winter Conference on Applications of Computer Vision (WACV), Waikoloa, HI, United States, 3-8 January 2024. Piscataway, NJ, United States: IEEE. doi: 10.1109/wacv57701.2024.00016
2024
Book Chapter
Towards cost-efficient federated multi-agent RL with learnable aggregation
Zhang, Yi, Wang, Sen, Chen, Zhi, Xu, Xuwei, Funiak, Stano and Liu, Jiajun (2024). Towards cost-efficient federated multi-agent RL with learnable aggregation. Advances in knowledge discovery and data mining. (pp. 171-183) Heidelberg, Germany: Springer. doi: 10.1007/978-981-97-2253-2_14
2023
Conference Publication
No token left behind: efficient vision transformer via dynamic token idling
Xu, Xuwei, Li, Changlin, Chen, Yudong, Chang, Xiaojun, Liu, Jiajun and Wang, Sen (2023). No token left behind: efficient vision transformer via dynamic token idling. 36th Australasian Joint Conference on Artificial Intelligence, Brisbane, QLD Australia, 28 November-1 December 2023. Singapore, Singapore: Springer Nature Singapore. doi: 10.1007/978-981-99-8388-9_3
2023
Conference Publication
SkySea: connecting satellite, UAV and underwater imagery for benthic habitat mapping
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. 31st ACM International Conference on Multimedia, Ottawa, ON Canada, 2 November 2023. New York, NY USA: Association for Computing Machinery. doi: 10.1145/3607834.3616570
2023
Conference Publication
Object detection difficulty: suppressing over-aggregation for faster and better video object detection
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. 31st ACM International Conference on Multimedia, MM 2023, Ottawa, ON Canada, 29 October - 3 November 2023. New York, NY United States: Association for Computing Machinery. doi: 10.1145/3581783.3612090
2023
Conference Publication
OCHID-Fi: Occlusion-Robust Hand Pose Estimation in 3D via RF-Vision
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. 2023 IEEE/CVF International Conference on Computer Vision (ICCV), Paris, France, 1-6 October 2023. Piscataway, NJ United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/iccv51070.2023.01387
2022
Conference Publication
InvisibiliTee: Angle-Agnostic Cloaking from Person-Tracking Systems with a Tee
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
2022
Conference Publication
Integrating Dependency Tree into Self-Attention for Sentence Representation
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
2021
Conference Publication
PathSAGE: Spatial Graph Attention Neural Networks with Random Path Sampling
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
2013
Journal Article
On the influence propagation of web videos
Liu, Jiajun, Yang, Yi, Huang, Zi, Yang, Yang and Shen, Heng Tao (2013). On the influence propagation of web videos. IEEE Transactions on Knowledge and Data Engineering, 26 (99) 6583164, 1961-1973. doi: 10.1109/TKDE.2013.142
2013
Journal Article
Near-duplicate video retrieval: current research and future trends
Liu, Jiajun, Huang, Zi, Cai, Hongyun, Shen, Heng Tao, Ngo, Chong-wah and Wang, Wei (2013). Near-duplicate video retrieval: current research and future trends. ACM Computing Surveys, 45 (4) 2501658, 44.1-44.23. doi: 10.1145/2501654.2501658
2013
Journal Article
Local image tagging via graph regularized joint group sparsity
Yang, Yang, Huang, Zi, Yang, Yi, Liu, Jiajun, Shen, Heng Tao and Luo, Jiebo (2013). Local image tagging via graph regularized joint group sparsity. Pattern Recognition, 46 (5), 1358-1368. doi: 10.1016/j.patcog.2012.10.026
2013
Journal Article
A gram-based string paradigm for efficient video subsequence search
Huang, Zi, Liu, Jiajun, Cui, Bin and Du, Xiaoyong (2013). A gram-based string paradigm for efficient video subsequence search. IEEE Transactions On Multimedia, 15 (3) 6392966, 608-620. doi: 10.1109/TMM.2012.2236307
2013
Conference Publication
Presenting diverse location views with real-time near-duplicate photo elimination
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
2012
Conference Publication
Robust cross-media transfer for visual event detection
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
2012
Conference Publication
Discovering areas of interest with geo-tagged images and check-ins
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
Supervision
Availability
- Associate Professor Jiajun Liu is:
- Available for supervision
Before you email them, read our advice on how to contact a supervisor.
Supervision history
Current supervision
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Doctor Philosophy
Towards Explainable Multi-source Multivariate Time-series Analysis
Associate Advisor
Other advisors: Associate Professor Sen Wang
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Doctor Philosophy
Towards Explainable Multi-source Multivariate Time-series Analysis
Associate Advisor
Other advisors: Associate Professor Sen Wang
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Doctor Philosophy
Short Sequence Representation Learning with Limited Supervision
Associate Advisor
Other advisors: Professor Xue Li, Associate Professor Sen Wang
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Doctor Philosophy
Simplifying Representations, Models, and Datasets for Efficient Visual Learning
Associate Advisor
Other advisors: Associate Professor Sen Wang
-
Doctor Philosophy
Towards Explainable Multi-source Multivariate Time-series Analysis
Associate Advisor
Other advisors: Associate Professor Sen Wang
-
Doctor Philosophy
Towards Explainable Multi-source Multivariate Time-series Analysis
Associate Advisor
Other advisors: Dr Ruihong Qiu, Associate Professor Sen Wang
Media
Enquiries
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