Search

Your search keyword '"Zhang, Ruiyuan"' showing total 391 results
Start Over Author "Zhang, Ruiyuan"
391 results on '"Zhang, Ruiyuan"'

2. Scalable Geometric Fracture Assembly via Co-creation Space among Assemblers

Author

Zhang, Ruiyuan, Liu, Jiaxiang, Li, Zexi, Dong, Hao, Fu, Jie, and Wu, Chao

Subjects
Computer Science - Computer Vision and Pattern Recognition
Abstract

Geometric fracture assembly presents a challenging practical task in archaeology and 3D computer vision. Previous methods have focused solely on assembling fragments based on semantic information, which has limited the quantity of objects that can be effectively assembled. Therefore, there is a need to develop a scalable framework for geometric fracture assembly without relying on semantic information. To improve the effectiveness of assembling geometric fractures without semantic information, we propose a co-creation space comprising several assemblers capable of gradually and unambiguously assembling fractures. Additionally, we introduce a novel loss function, i.e., the geometric-based collision loss, to address collision issues during the fracture assembly process and enhance the results. Our framework exhibits better performance on both PartNet and Breaking Bad datasets compared to existing state-of-the-art frameworks. Extensive experiments and quantitative comparisons demonstrate the effectiveness of our proposed framework, which features linear computational complexity, enhanced abstraction, and improved generalization. Our code is publicly available at https://github.com/Ruiyuan-Zhang/CCS., Comment: AAAI2024

Published
2023

4. Score-PA: Score-based 3D Part Assembly

Author

Cheng, Junfeng, Wu, Mingdong, Zhang, Ruiyuan, Zhan, Guanqi, Wu, Chao, and Dong, Hao

Subjects
Computer Science - Computer Vision and Pattern Recognition
Abstract

Autonomous 3D part assembly is a challenging task in the areas of robotics and 3D computer vision. This task aims to assemble individual components into a complete shape without relying on predefined instructions. In this paper, we formulate this task from a novel generative perspective, introducing the Score-based 3D Part Assembly framework (Score-PA) for 3D part assembly. Knowing that score-based methods are typically time-consuming during the inference stage. To address this issue, we introduce a novel algorithm called the Fast Predictor-Corrector Sampler (FPC) that accelerates the sampling process within the framework. We employ various metrics to assess assembly quality and diversity, and our evaluation results demonstrate that our algorithm outperforms existing state-of-the-art approaches. We release our code at https://github.com/J-F-Cheng/Score-PA_Score-based-3D-Part-Assembly., Comment: BMVC 2023

Published
2023

7. An IL-4 signalling axis in bone marrow drives pro-tumorigenic myelopoiesis

Author

LaMarche, Nelson M., Hegde, Samarth, Park, Matthew D., Maier, Barbara B., Troncoso, Leanna, Le Berichel, Jessica, Hamon, Pauline, Belabed, Meriem, Mattiuz, Raphaël, Hennequin, Clotilde, Chin, Theodore, Reid, Amanda M., Reyes-Torres, Iván, Nemeth, Erika, Zhang, Ruiyuan, Olson, Oakley C., Doroshow, Deborah B., Rohs, Nicholas C., Gomez, Jorge E., Veluswamy, Rajwanth, Hall, Nicole, Venturini, Nicholas, Ginhoux, Florent, Liu, Zhaoyuan, Buckup, Mark, Figueiredo, Igor, Roudko, Vladimir, Miyake, Kensuke, Karasuyama, Hajime, Gonzalez-Kozlova, Edgar, Gnjatic, Sacha, Passegué, Emmanuelle, Kim-Schulze, Seunghee, Brown, Brian D., Hirsch, Fred R., Kim, Brian S., Marron, Thomas U., and Merad, Miriam

Published
2024
Full Text
View/download PDF

46. Synergistic Palladium/Copper‐Catalyzed 1,4‐Difunctionalization of 1,3‐Dienes for Stereodivergent Construction of 1,5‐Nonadjacent Stereocenters.

Author

Wang, Hongfa, Zhang, Ruiyuan, and Zi, Weiwei

Subjects
*ORGANIC synthesis, *DIASTEREOISOMERS, *SONOGASHIRA reaction, *PALLADIUM, *CATALYSTS, *CATALYSIS, *COPPER, *STEREOSELECTIVE reactions
Abstract

The construction of two distal stereocenters through a single catalytic process is of great interest in organic synthesis. While there are some successful reports regarding stereodivergent preparation of 1,3‐ or 1,4‐stereocenters, the more challenged 1,5‐nonadjacent stereocenters have never been achieved in a stereodivergent fashion. Herein we describe a synergistic palladium/copper catalysis for 1,4‐difunctionalization reactions of 1,3‐dienes, providing access to 1,5‐nonadjacent quaternary stereocenters. Because each of the two catalysts separately controlled one of the newly formed stereocenters, stereodivergent synthesis of all four diastereomers of the products could readily be achieved simply by choosing an appropriate combination of chiral catalysts. Experimental and computational studies supported a mechanism involving a Heck/Tsuji–Trost cascade reaction, and the origins of the stereoselectivity were elucidated. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

49. Confined-Enhanced Raman Spectroscopy

Author

Zhang, Ruiyuan, primary, Li, Lingwei, additional, Guo, Yu, additional, Shi, Yafei, additional, Li, Jian-Feng, additional, Long, Yi-Tao, additional, and Fang, Jixiang, additional

Published
2023
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results