Ziyi Chang
Research Assistant
, 2025 - Present
Durham University
, UK
- Research topic: Learning styles in 3D data for reconstruction and synthesis
Publications with the Team
On the Design Fundamentals of Diffusion Models: A Survey Impact Factor: 7.5† Top 25% Journal in Computer Science, Artificial Intelligence† Citation: 82#
Pattern Recognition (PR), 2025
Ziyi Chang, George Alex Koulieris, Hyung Jin Chang and Hubert P. H. Shum
Topics: Literature Review
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Pattern Recognition (PR), 2025
Ziyi Chang, George Alex Koulieris, Hyung Jin Chang and Hubert P. H. Shum
Topics: Literature Review
Webpage Cite This Plain Text
Ziyi Chang, George Alex Koulieris, Hyung Jin Chang and Hubert P. H. Shum, "On the Design Fundamentals of Diffusion Models: A Survey," Pattern Recognition, pp. 111934, Elsevier, 2025.
Bibtex @article{chang25design,
author={Chang, Ziyi and Koulieris, George Alex and Chang, Hyung Jin and Shum, Hubert P. H.},
journal={Pattern Recognition},
title={On the Design Fundamentals of Diffusion Models: A Survey},
year={2025},
pages={111934},
doi={10.1016/j.patcog.2025.111934},
issn={0031-3203},
publisher={Elsevier},
}
RIS author={Chang, Ziyi and Koulieris, George Alex and Chang, Hyung Jin and Shum, Hubert P. H.},
journal={Pattern Recognition},
title={On the Design Fundamentals of Diffusion Models: A Survey},
year={2025},
pages={111934},
doi={10.1016/j.patcog.2025.111934},
issn={0031-3203},
publisher={Elsevier},
}
TY - JOUR
AU - Chang, Ziyi
AU - Koulieris, George Alex
AU - Chang, Hyung Jin
AU - Shum, Hubert P. H.
T2 - Pattern Recognition
TI - On the Design Fundamentals of Diffusion Models: A Survey
PY - 2025
SP - 111934
EP - 111934
DO - 10.1016/j.patcog.2025.111934
SN - 0031-3203
PB - Elsevier
ER -
PaperAU - Chang, Ziyi
AU - Koulieris, George Alex
AU - Chang, Hyung Jin
AU - Shum, Hubert P. H.
T2 - Pattern Recognition
TI - On the Design Fundamentals of Diffusion Models: A Survey
PY - 2025
SP - 111934
EP - 111934
DO - 10.1016/j.patcog.2025.111934
SN - 0031-3203
PB - Elsevier
ER -
Large-Scale Multi-Character Interaction Synthesis Core A* Conference‡
Proceedings of the 2025 ACM SIGGRAPH, 2025
Ziyi Chang, He Wang, George Alex Koulieris and Hubert P. H. Shum
Topics: Character Animation, Interaction Modelling
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Proceedings of the 2025 ACM SIGGRAPH, 2025
Ziyi Chang, He Wang, George Alex Koulieris and Hubert P. H. Shum
Topics: Character Animation, Interaction Modelling
Webpage Cite This Plain Text
Ziyi Chang, He Wang, George Alex Koulieris and Hubert P. H. Shum, "Large-Scale Multi-Character Interaction Synthesis," in Proceedings of the 2025 ACM SIGGRAPH, Vancouver, Canada, ACM, 2025.
Bibtex @inproceedings{chang25largescale,
author={Chang, Ziyi and Wang, He and Koulieris, George Alex and Shum, Hubert P. H.},
booktitle={Proceedings of the 2025 ACM SIGGRAPH},
title={Large-Scale Multi-Character Interaction Synthesis},
year={2025},
publisher={ACM},
location={Vancouver, Canada},
}
RIS author={Chang, Ziyi and Wang, He and Koulieris, George Alex and Shum, Hubert P. H.},
booktitle={Proceedings of the 2025 ACM SIGGRAPH},
title={Large-Scale Multi-Character Interaction Synthesis},
year={2025},
publisher={ACM},
location={Vancouver, Canada},
}
TY - CONF
AU - Chang, Ziyi
AU - Wang, He
AU - Koulieris, George Alex
AU - Shum, Hubert P. H.
T2 - Proceedings of the 2025 ACM SIGGRAPH
TI - Large-Scale Multi-Character Interaction Synthesis
PY - 2025
PB - ACM
ER -
Paper Supplementary Material YouTubeAU - Chang, Ziyi
AU - Wang, He
AU - Koulieris, George Alex
AU - Shum, Hubert P. H.
T2 - Proceedings of the 2025 ACM SIGGRAPH
TI - Large-Scale Multi-Character Interaction Synthesis
PY - 2025
PB - ACM
ER -
Hard No-Box Adversarial Attack on Skeleton-Based Human Action Recognition with Skeleton-Motion-Informed Gradient H5-Index: 291# Core A* Conference‡ Citation: 17#
Proceedings of the 2023 IEEE/CVF International Conference on Computer Vision (ICCV), 2023
Zhengzhi Lu, He Wang, Ziyi Chang, Guoan Yang and Hubert P. H. Shum
Topics: Action Recognition, Cybersecurity
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Proceedings of the 2023 IEEE/CVF International Conference on Computer Vision (ICCV), 2023
Zhengzhi Lu, He Wang, Ziyi Chang, Guoan Yang and Hubert P. H. Shum
Topics: Action Recognition, Cybersecurity
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Zhengzhi Lu, He Wang, Ziyi Chang, Guoan Yang and Hubert P. H. Shum, "Hard No-Box Adversarial Attack on Skeleton-Based Human Action Recognition with Skeleton-Motion-Informed Gradient," in ICCV '23: Proceedings of the 2023 IEEE/CVF International Conference on Computer Vision, pp. 4574-4583, Paris, France, IEEE/CVF, Oct 2023.
Bibtex @inproceedings{lu23hard,
author={Lu, Zhengzhi and Wang, He and Chang, Ziyi and Yang, Guoan and Shum, Hubert P. H.},
booktitle={Proceedings of the 2023 IEEE/CVF International Conference on Computer Vision},
series={ICCV '23},
title={Hard No-Box Adversarial Attack on Skeleton-Based Human Action Recognition with Skeleton-Motion-Informed Gradient},
year={2023},
month={10},
pages={4574--4583},
numpages={10},
doi={10.1109/ICCV51070.2023.00424},
publisher={IEEE/CVF},
location={Paris, France},
}
RIS author={Lu, Zhengzhi and Wang, He and Chang, Ziyi and Yang, Guoan and Shum, Hubert P. H.},
booktitle={Proceedings of the 2023 IEEE/CVF International Conference on Computer Vision},
series={ICCV '23},
title={Hard No-Box Adversarial Attack on Skeleton-Based Human Action Recognition with Skeleton-Motion-Informed Gradient},
year={2023},
month={10},
pages={4574--4583},
numpages={10},
doi={10.1109/ICCV51070.2023.00424},
publisher={IEEE/CVF},
location={Paris, France},
}
TY - CONF
AU - Lu, Zhengzhi
AU - Wang, He
AU - Chang, Ziyi
AU - Yang, Guoan
AU - Shum, Hubert P. H.
T2 - Proceedings of the 2023 IEEE/CVF International Conference on Computer Vision
TI - Hard No-Box Adversarial Attack on Skeleton-Based Human Action Recognition with Skeleton-Motion-Informed Gradient
PY - 2023
Y1 - 10 2023
SP - 4574
EP - 4583
DO - 10.1109/ICCV51070.2023.00424
PB - IEEE/CVF
ER -
Paper Supplementary Material GitHub YouTubeAU - Lu, Zhengzhi
AU - Wang, He
AU - Chang, Ziyi
AU - Yang, Guoan
AU - Shum, Hubert P. H.
T2 - Proceedings of the 2023 IEEE/CVF International Conference on Computer Vision
TI - Hard No-Box Adversarial Attack on Skeleton-Based Human Action Recognition with Skeleton-Motion-Informed Gradient
PY - 2023
Y1 - 10 2023
SP - 4574
EP - 4583
DO - 10.1109/ICCV51070.2023.00424
PB - IEEE/CVF
ER -
Unifying Human Motion Synthesis and Style Transfer with Denoising Diffusion Probabilistic Models Citation: 18#
Proceedings of the 2023 International Conference on Computer Graphics Theory and Applications (GRAPP), 2023
Ziyi Chang, Edmund J. C. Findlay, Haozheng Zhang and Hubert P. H. Shum
Topics: Character Animation
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Proceedings of the 2023 International Conference on Computer Graphics Theory and Applications (GRAPP), 2023
Ziyi Chang, Edmund J. C. Findlay, Haozheng Zhang and Hubert P. H. Shum
Topics: Character Animation
Webpage Cite This Plain Text
Ziyi Chang, Edmund J. C. Findlay, Haozheng Zhang and Hubert P. H. Shum, "Unifying Human Motion Synthesis and Style Transfer with Denoising Diffusion Probabilistic Models," in GRAPP '23: Proceedings of the 2023 International Conference on Computer Graphics Theory and Applications, pp. 64-74, Lisbon, Portugal, SciTePress, Feb 2023.
Bibtex @inproceedings{chang23unifying,
author={Chang, Ziyi and Findlay, Edmund J. C. and Zhang, Haozheng and Shum, Hubert P. H.},
booktitle={Proceedings of the 2023 International Conference on Computer Graphics Theory and Applications},
series={GRAPP '23},
title={Unifying Human Motion Synthesis and Style Transfer with Denoising Diffusion Probabilistic Models},
year={2023},
month={2},
pages={64--74},
numpages={11},
doi={10.5220/0011631000003417},
issn={2184-4321},
isbn={978-989-758-634-7},
publisher={SciTePress},
location={Lisbon, Portugal},
}
RIS author={Chang, Ziyi and Findlay, Edmund J. C. and Zhang, Haozheng and Shum, Hubert P. H.},
booktitle={Proceedings of the 2023 International Conference on Computer Graphics Theory and Applications},
series={GRAPP '23},
title={Unifying Human Motion Synthesis and Style Transfer with Denoising Diffusion Probabilistic Models},
year={2023},
month={2},
pages={64--74},
numpages={11},
doi={10.5220/0011631000003417},
issn={2184-4321},
isbn={978-989-758-634-7},
publisher={SciTePress},
location={Lisbon, Portugal},
}
TY - CONF
AU - Chang, Ziyi
AU - Findlay, Edmund J. C.
AU - Zhang, Haozheng
AU - Shum, Hubert P. H.
T2 - Proceedings of the 2023 International Conference on Computer Graphics Theory and Applications
TI - Unifying Human Motion Synthesis and Style Transfer with Denoising Diffusion Probabilistic Models
PY - 2023
Y1 - 2 2023
SP - 64
EP - 74
DO - 10.5220/0011631000003417
SN - 2184-4321
PB - SciTePress
ER -
Paper GitHub YouTubeAU - Chang, Ziyi
AU - Findlay, Edmund J. C.
AU - Zhang, Haozheng
AU - Shum, Hubert P. H.
T2 - Proceedings of the 2023 International Conference on Computer Graphics Theory and Applications
TI - Unifying Human Motion Synthesis and Style Transfer with Denoising Diffusion Probabilistic Models
PY - 2023
Y1 - 2 2023
SP - 64
EP - 74
DO - 10.5220/0011631000003417
SN - 2184-4321
PB - SciTePress
ER -
3D Reconstruction of Sculptures from Single Images via Unsupervised Domain Adaptation on Implicit Models Core A Conference‡
Proceedings of the 2022 ACM Symposium on Virtual Reality Software and Technology (VRST), 2022
Ziyi Chang, George Alex Koulieris and Hubert P. H. Shum
Topics: 3D Reconstruction, Surface Modelling, Artwork Analysis
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Proceedings of the 2022 ACM Symposium on Virtual Reality Software and Technology (VRST), 2022
Ziyi Chang, George Alex Koulieris and Hubert P. H. Shum
Topics: 3D Reconstruction, Surface Modelling, Artwork Analysis
Webpage Cite This Plain Text
Ziyi Chang, George Alex Koulieris and Hubert P. H. Shum, "3D Reconstruction of Sculptures from Single Images via Unsupervised Domain Adaptation on Implicit Models," in VRST '22: Proceedings of the 2022 ACM Symposium on Virtual Reality Software and Technology, pp. 1-10, Tsukuba, Japan, ACM, Nov 2022.
Bibtex @inproceedings{chang22reconstruction,
author={Chang, Ziyi and Koulieris, George Alex and Shum, Hubert P. H.},
booktitle={Proceedings of the 2022 ACM Symposium on Virtual Reality Software and Technology},
series={VRST '22},
title={3D Reconstruction of Sculptures from Single Images via Unsupervised Domain Adaptation on Implicit Models},
year={2022},
month={11},
pages={1--10},
numpages={10},
doi={10.1145/3562939.3565632},
isbn={9.78E+12},
publisher={ACM},
Address={New York, NY, USA},
location={Tsukuba, Japan},
}
RIS author={Chang, Ziyi and Koulieris, George Alex and Shum, Hubert P. H.},
booktitle={Proceedings of the 2022 ACM Symposium on Virtual Reality Software and Technology},
series={VRST '22},
title={3D Reconstruction of Sculptures from Single Images via Unsupervised Domain Adaptation on Implicit Models},
year={2022},
month={11},
pages={1--10},
numpages={10},
doi={10.1145/3562939.3565632},
isbn={9.78E+12},
publisher={ACM},
Address={New York, NY, USA},
location={Tsukuba, Japan},
}
TY - CONF
AU - Chang, Ziyi
AU - Koulieris, George Alex
AU - Shum, Hubert P. H.
T2 - Proceedings of the 2022 ACM Symposium on Virtual Reality Software and Technology
TI - 3D Reconstruction of Sculptures from Single Images via Unsupervised Domain Adaptation on Implicit Models
PY - 2022
Y1 - 11 2022
SP - 1
EP - 10
DO - 10.1145/3562939.3565632
SN - 9.78E+12
PB - ACM
ER -
Paper GitHub YouTubeAU - Chang, Ziyi
AU - Koulieris, George Alex
AU - Shum, Hubert P. H.
T2 - Proceedings of the 2022 ACM Symposium on Virtual Reality Software and Technology
TI - 3D Reconstruction of Sculptures from Single Images via Unsupervised Domain Adaptation on Implicit Models
PY - 2022
Y1 - 11 2022
SP - 1
EP - 10
DO - 10.1145/3562939.3565632
SN - 9.78E+12
PB - ACM
ER -
Denoising Diffusion Probabilistic Models for Styled Walking Synthesis
Proceedings of the 2022 ACM SIGGRAPH Conference on Motion, Interaction and Games (MIG) Posters, 2022
Edmund J. C. Findlay, Haozheng Zhang, Ziyi Chang and Hubert P. H. Shum
Topics: Character Animation
Webpage Cite This Plain Text
Proceedings of the 2022 ACM SIGGRAPH Conference on Motion, Interaction and Games (MIG) Posters, 2022
Edmund J. C. Findlay, Haozheng Zhang, Ziyi Chang and Hubert P. H. Shum
Topics: Character Animation
Webpage Cite This Plain Text
Edmund J. C. Findlay, Haozheng Zhang, Ziyi Chang and Hubert P. H. Shum, "Denoising Diffusion Probabilistic Models for Styled Walking Synthesis," in MIG '22: Proceedings of the 2022 ACM SIGGRAPH Conference on Motion, Interaction and Games, Guanajuato, Mexico, ACM, 2022.
Bibtex @inproceedings{edmund22style,
author={Findlay, Edmund J. C. and Zhang, Haozheng and Chang, Ziyi and Shum, Hubert P. H.},
booktitle={Proceedings of the 2022 ACM SIGGRAPH Conference on Motion, Interaction and Games},
series={MIG '22},
title={Denoising Diffusion Probabilistic Models for Styled Walking Synthesis},
year={2022},
publisher={ACM},
Address={New York, NY, USA},
location={Guanajuato, Mexico},
}
RIS author={Findlay, Edmund J. C. and Zhang, Haozheng and Chang, Ziyi and Shum, Hubert P. H.},
booktitle={Proceedings of the 2022 ACM SIGGRAPH Conference on Motion, Interaction and Games},
series={MIG '22},
title={Denoising Diffusion Probabilistic Models for Styled Walking Synthesis},
year={2022},
publisher={ACM},
Address={New York, NY, USA},
location={Guanajuato, Mexico},
}
TY - CONF
AU - Findlay, Edmund J. C.
AU - Zhang, Haozheng
AU - Chang, Ziyi
AU - Shum, Hubert P. H.
T2 - Proceedings of the 2022 ACM SIGGRAPH Conference on Motion, Interaction and Games
TI - Denoising Diffusion Probabilistic Models for Styled Walking Synthesis
PY - 2022
PB - ACM
ER -
Paper YouTubeAU - Findlay, Edmund J. C.
AU - Zhang, Haozheng
AU - Chang, Ziyi
AU - Shum, Hubert P. H.
T2 - Proceedings of the 2022 ACM SIGGRAPH Conference on Motion, Interaction and Games
TI - Denoising Diffusion Probabilistic Models for Styled Walking Synthesis
PY - 2022
PB - ACM
ER -
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