Professor Junbin Gao
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Professor Junbin Gao

BSc HUST; MSc HUST; PhD DUT
Professor
Phone
+61 2 8627 4856
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Professor Junbin Gao

Junbin Gao is Professor of Big Data Analytics at the University of Sydney Business School. Prior to joining the University of Sydney in 2016, he was Professor in Computing from 2010 to 2016 and Associate Professor from 2005 to 2010 at Charles Sturt University (CSU). He was Senior Lecturer from Jan 2005 to July 2005 and Lecturer from Nov 2001 to Jan 2005 in the School of Mathematics, Statistics and Computer Science (now the School of Science and Technology) at University of New England (UNE). Between 1999 and 2001, he worked as a Research Fellow in the Department of Electronics and Computer Science at University of Southampton, England.

Junbin Gao graduated from Huazhong University of Science and Technology (HUST) in 1982 with a Bachelor Degree in Computational Mathematics. He obtained his PhD from Dalian University of Technology in 1991. Between 1991 and 1993 he worked as a postdoctoral research fellow investigating wavelet applications at Wuhan University. He was appointed as an Associate Professor in July 1993 and promoted to Professor in October 1997 in Department of Mathematics of HUST. He was Guest Professor (2003-2006) in the State Key Lab of Information Engineering in Surveying, Mapping and Remote Sensing at Wuhan University, China; Guest Professor (2007-2010) in the School of Computer Science and Technology at Huazhong University of Science and Technology, China; Guest Professor (2008-2011) in the School of Computers at Guangdong University of Technology, China; and Visiting Professor (2012-2015) in Beijing Municipal Key Lab of Multimedia and Intelligent Software Technology at Beijing University of Technology.

Until recently his major research interest has been machine learning and its application in data science, image analysis, pattern recognition, Bayesian learning & inference, and numerical optimization etc. He is the author of 260 academic research papers and two books. His recent research has involved new machine learning algorithms for big data in business. Prof Gao won two research grants in Discovery Project theme from the prestigious Australian Research Council (ARC).

Professor Junbin Gao began his research career by studying approximation theory and application of multivariate spline functions in numerical solutions for partial differential equations, continuing research work in wavelet applications in chemometrics, and becoming an outstanding researcher in machine learning, pattern recognition, Bayesian learning/inference, numerical optimisation and big data analytics in business.

One of interesting examples in Junbin’s recent research is to propose matrix neural networks and apply it in longitudinal relational data in politics research, where he further develops it to tensorial recurrent neural network. In a series of papers from 2014 to 2017 Junbin Gao showed how to conduct data subspace clustering and dimensionality reduction on manifolds particularly for the abstract Grassmann manifolds. Much of this work has been joint with a number of international collaborators. Junbin Gao’s work prior to 2014 is on dimensionality reduction, which was funded by the Australian Research Council (ARC), and the success can be seen in a series of paper between 2005 and 2013 and the research was quoted by The Australian newspaper in 2012.

More recently Junbin has focussed on designing machine learning algorithms for structural data such as tensor-valued data and manifold-valued data widely seen modern business and computer vision. In classical data analysis and machine learning algorithms, input data including manifold-valued data are generally regarded as or converted to vectorial data in a Euclidean space by ignoring useful prior information. However, for manifold-valued data, it is unclear how to extend those very powerful machine learning algorithms for vectorial data, such as the state-of-the-art Low Rank Representation models, onto general Riemannian manifolds due to loss of linearity structures over “curved” Riemannian manifolds.

In recent years there has been great progress in the research of commonly used matrix manifolds such as the tensor manifold/covariance descriptor, Stiefel manifold, Multinomial Manifold, Grassmann manifold, Kendall Shape manifolds and Low Rank matrix manifold. The core idea is to explicitly incorporate geometry of manifolds for the purpose of learning algorithm design, which brings advantages of improving accuracy and efficiency and reducing computational cost of conventional machine learning algorithms. So answering questions about manifold-valued data modelling forces us to consider how sufficiently using Riemannian properties of the well-known matrix manifolds to assist designing new learning algorithms for manifold-valued data analysis.

There are applications in many areas, but Junbin Gao has a particular interest in what happens in international relation research and panel data in financial world, and also learning tasks in pattern analysis for computer vision tasks.

  • BUSS4001 Business Honours Research Methods
  • BUSS4313 Business Analytics Honours B
  • QBUS5001 Quantitative Methods for Business
  • QBUS6810 Statistical Learning and Data Mining
  • QBUS6840 Predictive Analytics
Project titleResearch student
Multivariate Volatility Forecast via Spatiotemporal MethodsMike CHI
Interpretable uncertainty system identification: A multi-dimensional time series forecasting technology of financial data.Jiayu FANG
Banking Corporate Innovation and Deep LearningYunying HUANG
Machine Learning-Based Systematic Analysis of Social Media Polarization: Detection, Root Cause Analysis, and Mitigation StrategiesLevia LI
Graph Neural NetworksLena LIN
Deep learning in Financial Time Series ForecastingChen LIU
Research on the Explainability of Machine Learning and Artificial Intelligence in Business AnalyticsHongwei MA
Beyond Trade-Offs: Advancing Spatial-Temporal Forecasting in Transportation with Deep LearningJessica SHAO
DEEP LEARNING OPTIMIZATION TO PREDICT STOCK MARKET MOVEMENT USING FUNDAMENTAL AND TECHNICAL ANALYSISWidhiyo SUDIYONO
Enhancing representation learning in Graph Neural NetworkYe XIAO
Trustworthy Machine LearningKuan YAN
ESG and Portfolio Performance Optimization with Advanced Machine Learning Techniques:evidence from ChinaXuan YE
Actuarial Studies with machine learning and statistical modellingYuning ZHANG

Publications

Edited Books

  • Seng, K., Ang, L., Liew, A., Gao, J. (2019). Multimodal Analytics for Next-Generation Big Data Technologies and Applications. Cham: Springer International Publishing. [More Information]
  • Gao, J., Kwan, P., Poon, J., Poon, S. (2009). Proceedings of the Workshop Advances and Issues in Biomedical Data Mining (AIBDM'09). Thailand: Printing House of Thammasat University - Rangsit Campus.

Book Chapters

  • Yates, D., Islam, Z., Gao, J. (2019). Implementation and Performance Analysis of Data-Mining Classification Algorithms on Smartphones. In R. Islam, Y. S. Koh, Y. Zhao, G. Warwick, D. Stirling, C-T. Li, Z. Islam (Eds.), Data Mining: 16th Australasian Conference, AusDM 2018, Bahrurst, NSW, Australia, November 28-30, 2018, Revised selected papers, (pp. 331-343). Singapore: Springer. [More Information]
  • Soomro, T., Gao, J., Zheng, L., Afifi, A., Soomro, S., Paul, M. (2019). Retinal Blood Vessels Extraction of Challenging Images. In R. Islam, Y. S. Koh, Y. Zhao, G. Warwick, D. Stirling, C-T. Li, Z. Islam (Eds.), Data Mining: 16th Australasian Conference, AusDM 2018, Bahrurst, NSW, Australia, November 28-30, 2018, Revised selected papers, (pp. 347-359). Singapore: Springer. [More Information]
  • Yates, D., Islam, M., Gao, J. (2019). SPAARC: A Fast Decision Tree Algorithm. In R. Islam, Y. S. Koh, Y. Zhao, G. Warwick, D. Stirling, C-T. Li, Z. Islam (Eds.), Data Mining: 16th Australasian Conference, AusDM 2018, Bahrurst, NSW, Australia, November 28-30, 2018, Revised selected papers, (pp. 43-55). Singapore: Springer. [More Information]

Journals

  • Wang, B., Ma, Y., Li, X., Gao, J., Hu, Y., Yin, B. (2025). Bridging the Cross-Modality Semantic Gap in Visual Question Answering. IEEE Transactions on Neural Networks and Learning Systems, 36(3), 4519-4531. [More Information]
  • Shi, D., Han, A., Lin, L., Guo, Y., Wang, Z., Gao, J. (2025). Design your own universe: a physics-informed agnostic method for enhancing graph neural networks. International Journal of Machine Learning and Cybernetics, 16(2), 1129-1144. [More Information]
  • Wang, J., Guo, J., Sun, Y., Gao, J., Wang, S., Yang, Y., Yin, B. (2025). DGNN: Decoupled Graph Neural Networks With Structural Consistency Between Attribute and Graph Embedding Representations. IEEE Transactions on Big Data, Published online: 31 October 2024. [More Information]

Conferences

  • Jawanpuria, P., Shi, D., Mishra, B., Gao, J. (2025). A Riemannian Approach to Ground Metric Learning for Optimal Transport. 2025 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Hyderabad, India: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Zhang, Q., Sun, Y., Guo, J., Wang, S., Li, J., Gao, J., Yin, B. (2024). AutoFGNN: A Framework for Extracting All Frequency Information from Large-Scale Graphs. 49th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2024, Piscataway, New Jersey: IEEE. [More Information]
  • Zhai, J., Lin, L., Shi, D., Gao, J. (2024). Bregman Graph Neural Network. 49th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2024, Piscataway, New Jersey: IEEE. [More Information]

2025

  • Jawanpuria, P., Shi, D., Mishra, B., Gao, J. (2025). A Riemannian Approach to Ground Metric Learning for Optimal Transport. 2025 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Hyderabad, India: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Wang, B., Ma, Y., Li, X., Gao, J., Hu, Y., Yin, B. (2025). Bridging the Cross-Modality Semantic Gap in Visual Question Answering. IEEE Transactions on Neural Networks and Learning Systems, 36(3), 4519-4531. [More Information]
  • Shi, D., Han, A., Lin, L., Guo, Y., Wang, Z., Gao, J. (2025). Design your own universe: a physics-informed agnostic method for enhancing graph neural networks. International Journal of Machine Learning and Cybernetics, 16(2), 1129-1144. [More Information]

2024

  • Cheng, C., Zhang, L., Li, H., Cui, W., Gao, J., Cun, Y. (2024). A Deep High-Order Tensor Sparse Representation for Hyperspectral Image Classification. IEEE Transactions on Geoscience and Remote Sensing, 62, 5521416. [More Information]
  • Yang, Y., Sun, Y., Wang, S., Gao, J., Ju, F., Yin, B. (2024). A Dual-Masked Deep Structural Clustering Network With Adaptive Bidirectional Information Delivery. IEEE Transactions on Neural Networks and Learning Systems, 35(10), 14783-14796. [More Information]
  • Uddin, S., Lu, H., Rahman, A., Gao, J. (2024). A novel approach for assessing fairness in deployed machine learning algorithms. Scientific Reports, 14(1), 17753. [More Information]

2023

  • Lin, L., Gao, J. (2023). A Magnetic Framelet-Based Convolutional Neural Network for Directed Graphs. 2023 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), United States: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Wu, W., Li, B., Chen, L., Gao, J., Zhang, C. (2023). A Review for Weighted MinHash Algorithms (Extended abstract). IEEE 39th International Conference on Data Engineering (ICDE), United States: IEEE. [More Information]
  • Li, X., Gao, J. (2023). Audioset classification with Graph Convolutional Attention model. 2023 International Joint Conference on Neural Networks (IJCNN), United States: IEEE. [More Information]

2022

  • Ji, Q., Sun, Y., Gao, J., Hu, Y., Yin, B. (2022). A Decoder-Free Variational Deep Embedding for Unsupervised Clustering. IEEE Transactions on Neural Networks and Learning Systems, 33(10), 5681-5693. [More Information]
  • Wu, W., Li, B., Chen, L., Gao, J., Zhang, C. (2022). A Review for Weighted MinHash Algorithms. IEEE Transactions On Knowledge And Data Engineering, 34(6), 2553-2573. [More Information]
  • Guo, Z., Min, A., Yang, B., Chen, J., Li, H., Gao, J. (2022). A Sparse Oblique-Manifold Nonnegative Matrix Factorization for Hyperspectral Unmixing. IEEE Transactions on Geoscience and Remote Sensing, 60, 5508013. [More Information]

2021

  • Piao, X., Hu, Y., Gao, J., Sun, Y., Yang, X., Yin, B. (2021). A Spectral Clustering on Grassmann Manifold via Double Low Rank Constraint. 25th International Conference on Pattern Recognition, ICPR 2020, Piscataway, New Jersey: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Wang, B., Hu, Y., Gao, J., Sun, Y., Ju, F., Yin, B. (2021). Adaptive Fusion of Heterogeneous Manifolds for Subspace Clustering. IEEE Transactions on Neural Networks and Learning Systems, 32(8), 3484-3497. [More Information]
  • Hu, Y., Song, Z., Wang, B., Gao, J., Sun, Y., Yin, B. (2021). AKM3C: Adaptive K-Multiple-Means for Multi-view Clustering. IEEE Transactions on Circuits and Systems for Video Technology, 31(11), 4214-4226. [More Information]

2020

  • Zhang, C., Gao, J., Lu, Q. (2020). Cluster Developing 1-Bit Matrix Completion. 2020 International Joint Conference on Neural Networks (IJCNN), Piscataway: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Chowdhury, M., Gao, J., Islam, R. (2020). Extracting depth information from stereo images using a fast correlation matching algorithm. International Journal of Computers and Applications, 42(8), 798-803. [More Information]
  • Hu, C., Gao, J., Chen, J., Jiang, D., Shu, Y. (2020). Fine-grained age estimation with multi-attention network. IEEE Access, 8, 196013-196023. [More Information]

2019

  • Wang, P., He, Z., Xie, K., Gao, J., Antolovich, M., Tan, B. (2019). A hybrid algorithm for low-rank approximation of nonnegative matrix factorization. Neurocomputing, 364, 129-137. [More Information]
  • Khan, M., Khan, T., Soomro, T., Mir, N., Gao, J. (2019). Boosting sensitivity of a retinal vessel segmentation algorithm. Pattern Analysis and Applications, 22(2), 583-599. [More Information]
  • Zhu, M., Shi, D., Gao, J. (2019). Branched convolutional neural networks incorporated with Jacobian deep regression for facial landmark detection. Neural Networks, 118, 127-139. [More Information]

2018

  • Hu, F., Liu, W., Tsai, S., Gao, J., Bin, N., Chen, Q. (2018). An Empirical Study on Visualizing the Intellectual Structure and Hotspots of Big Data Research from a Sustainable Perspective. Sustainability, 10(3), 1-19. [More Information]
  • Zhu, M., Shi, D., Chen, S., Gao, J. (2018). Branched convolutional neural networks for face alignment. 19th Pacific-Rim Conference on Multimedia, PCM 2018, Cham: Springer. [More Information]
  • Wang, B., Hu, Y., Gao, J., Sun, Y., Yin, B. (2018). Cascaded low rank and sparse representation on grassmann manifolds. 27th International Joint Conference on Artificial Intelligence (IJCAI 2018), Stockholm: International Joint Conferences on Artificial Intelligence. [More Information]

2017

  • Li, F., Xin, L., Guo, Y., Gao, J., Jia, X. (2017). A Framework of Mixed Sparse Representations for Remote Sensing Images. IEEE Transactions on Geoscience and Remote Sensing, 55(2), 1210-1221. [More Information]
  • Shi, D., Wang, J., Cheng, D., Gao, J. (2017). A global-local affinity matrix model via EigenGap for graph-based subspace clustering. Pattern Recognition Letters, 89, 67-72. [More Information]
  • Wang, P., He, Z., Xie, K., Gao, J., Antolovich, M. (2017). A Nonnegative Projection Based Algorithm for Low-Rank Nonnegative Matrix Approximation. In Derong Liu, Shengli Xie, Yuanqing Li, Dongbin Zhao, El-Sayed M. El-Alfy (Eds.), Neural Information Processing: 24th International Conference, ICONIP 2017 Guangzhou, China, November 14-18, 2017 Proceedings, Part I, (pp. 240-247). Cham: Springer. [More Information]

2016

  • Hong, X., Gao, J. (2016). A Fast Algorithm to Estimate the Square Root of Probability Density Function. AI-2016 Thirty-sixth SGAI International Conference on Artificial Intelligence: Incorporating Applications and Innovations in Intelligent Systems XXIV, Cham: Springer. [More Information]
  • Rahman, A., Gao, J., D'Este, C., Ahmed, S. (2016). An Assessment of the Effects of Prior Distributions on the Bayesian Predictive Inference. International Journal of Statistics and Probability, 5(5), 31-42. [More Information]
  • Soomro, T., Khan, M., Gao, J., Khan, T., Paul, M., Mir, N. (2016). Automatic Retinal Vessel Extraction Algorithm. 2016 International Conference on Digital Image Computing: Techniques and Applications (DICTA 2016), Gold Coast: Institute of Electrical and Electronics Engineers (IEEE). [More Information]

2015

  • Yin, M., Gao, J., Shi, D., Cai, S. (2015). Band-Level Correlation Noise Modeling for Wyner-Ziv Video Coding with Gaussian Mixture Models. Circuits, Systems and Signal Processing, 34(7), 2237-2254. [More Information]
  • Xu, C., Lu, C., Gao, J., Zheng, W., Wang, T., Yan, S. (2015). Discriminative Analysis for Symmetric Positive Definite Matrices on Lie Groups. IEEE Transactions on Circuits and Systems for Video Technology, 25(10), 1576-1585. [More Information]
  • Yin, M., Gao, J., Lin, Z., Shi, Q., Guo, Y. (2015). Dual Graph Regularized Latent Low-Rank Representation for Subspace Clustering. IEEE Transactions on Image Processing, 24(12), 4918-4933. [More Information]

2014

  • Cui, L., Ling, Z., Poon, J., Poon, S., Gao, J., Kwan, P. (2014). A Decomposition Model for HPLC-DAD Data Set and Its Solution by Particle Swarm Optimization. Applied Computational Intelligence and Soft Computing, 2014, 1-10. [More Information]
  • Cui, A., Ling, Z., Poon, J., Poon, S., Chen, H., Gao, J., Kwan, P., Fan, K. (2014). A parallel model of independent component analysis constrained by a 5-parameter reference curve and its solution by multi-target particle swarm optimization. Analytical Methods, 6(8), 2679-2686. [More Information]
  • Tierney, S., Gao, J., Guo, Y. (2014). Affinity pansharpening and image fusion. The International Conference on Digital Image Computing: Techniques and Applications (DICTA 2014), Piscataway, USA: Institute of Electrical and Electronics Engineers (IEEE). [More Information]

2013

  • Li, F., Tang, L., Li, C., Guo, Y., Gao, J. (2013). A new super resolution method based on combined sparse representations for remote sensing imagery. Image and Signal Processing for Remote Sensing XIX, Bellingham: Society of Photo-Optical Instrumentation Engineers (SPIE). [More Information]
  • Guo, Y., Gao, J., Li, F. (2013). Dimensionality Reduction with Dimension Selection. 17th Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD 2013), Berlin: Springer. [More Information]
  • Guo, Y., Gao, J., Sun, Y. (2013). Endmember extraction by exemplar finder. 9th International Conference on Advanced Data Mining and Applications (ADMA 2013), Berlin: Springer. [More Information]

2012

  • Paul, M., Gao, J., Anotolovich, M. (2012). 3D motion estimation for 3D video coding. 2012 IEEE International Conference on Acoustics, Speech and Signal Processing, Piscataway: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Rahman, M., Islam, M., Bossomaier, T., Gao, J. (2012). CAIRAD: A co-appearance based analysis for Incorrect Records and Attribute-values Detection. 2012 Annual International Joint Conference on Neural Networks, IJCNN 2012, Piscataway: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Guo, Y., Gao, J., Hong, X. (2012). Constrained Grouped Sparsity. The 25th Australasian Joint Conference on Artificial Intelligence (AI 2012), Heidelberg: Springer. [More Information]

2011

  • Poon, S., Poon, J., McGrane, M., Zhou, X., Kwan, P., Zhang, R., Liu, B., Gao, J., Loy, C., Chan, K., Sze, D. (2011). A novel approach in discovering significant interactions from TCM patient prescription data. International Journal of Data Mining and Bioinformatics, 5(4), 353-368. [More Information]
  • Poon, S., Fan, K., Poon, J., Loy, C., Chan, K., Kuan, P., Zhou, X., Gao, J., Zhang, R., Wang, Y., et al (2011). Analysis of herbal formulation in TCM: Infertility as a case study. IEEE International Conference on Bioinformatics and Biomedicine Workshops (BIBMW 2011), Los Alamitos, CA, USA: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Bull, G., Gao, J. (2011). Classification of Hand-Written Digits Using Chordiograms. 2011 International Conference on Digital Image Computing: Techniques and Applications (DICTA 2011), Piscataway, New Jersey, USA: Institute of Electrical and Electronics Engineers (IEEE). [More Information]

2010

  • Kwan, P., Gao, J., Guo, Y., Kameyama, K. (2010). A learning framework for adaptive fingerprint identification using relevance feedback. International Journal of Pattern Recognition and Artificial Intelligence, 24(1), 15-38. [More Information]
  • McGrane, M., Poon, S., Poon, J., Chan, K., Loy, C., Zhou, X., Zhang, R., Liu, B., Kwan, P., Sze, D., et al (2010). Analysis of Synergistic and Antagonistic Effects of TCM: Cases on Diabetes and Insomnia. 2010 IEEE International Conference on Bioinformatics and Biomedicine Workshops BIBMW 2010, USA: Institute of Electrical and Electronics Engineers (IEEE). [More Information]
  • Zheng, L., Gao, J., He, X. (2010). Efficient character segmentation on car license plates. 11th International Conference on Control, Automation, Robotics and Vision (ICARCV 2010), Piscataway, New Jersey, USA: Institute of Electrical and Electronics Engineers (IEEE). [More Information]

2009

  • Gao, J., Kwan, P., Huang, X. (2009). Comprehensive Analysis for the Local Fisher Discriminant Analysis. International Journal of Pattern Recognition and Artificial Intelligence, 23(6), 1129-1143. [More Information]
  • Gao, J., Kwan, P., Poon, J., Poon, S. (2009). Proceedings of the Workshop Advances and Issues in Biomedical Data Mining (AIBDM'09). Thailand: Printing House of Thammasat University - Rangsit Campus.
  • Gao, J., Kwan, P., Guo, L. (2009). Robust multivariate L1 principal component analysis and dimensionality reduction. Neurocomputing, 72(4-6), 1242-1249. [More Information]

Selected Grants

2020

  • Deep learning based time series modeling and financial forecasting, Tran M, Gao J, Gerlach R, Australian Research Council (ARC)/Discovery Projects (DP)

2015

  • A phone-based imaging tool to measure fruit volume to optimise harvest time, Gao J, Wine Australia/Research Grant

Professor Junbin Gao is recruiting high quality PhD students who would like to conduct research in the areas of Data Science and Machine Learning.