no code implementations • 15 Nov 2023 • Zhaocong liu, Fa Zhang, Lin Cheng, Huanxi Deng, Xiaoyan Yang, Zhenyu Zhang, ChiChun Zhou
Addressing this, an unsupervised classification method with three key ideas is introduced: 1) dual-step feature dimensionality reduction using a pre-trained model and manifold learning, 2) a voting mechanism from multiple clustering algorithms, and 3) post-hoc instead of prior manual annotation.
no code implementations • 17 Sep 2023 • Bintao He, Fa Zhang, Chenjie Feng, Jianyi Yang, Xin Gao, Renmin Han
Advances on cryo-electron imaging technologies have led to a rapidly increasing number of density maps.
1 code implementation • 5 Mar 2023 • Zhiwei Wang, Fa Zhang, Cong Zheng, Xianghong Hu, Mingxuan Cai, Can Yang
Here, we consider a matrix factorization problem by utilizing auxiliary information, which is massively available in real-world applications, to overcome the challenges caused by poor data quality.
no code implementations • 18 Mar 2022 • Ilja Gubins, Marten L. Chaillet, Gijs van der Schot, M. Cristina Trueba, Remco C. Veltkamp, Friedrich Förster, Xiao Wang, Daisuke Kihara, Emmanuel Moebel, Nguyen P. Nguyen, Tommi White, Filiz Bunyak, Giorgos Papoulias, Stavros Gerolymatos, Evangelia I. Zacharaki, Konstantinos Moustakas, Xiangrui Zeng, Sinuo Liu, Min Xu, Yaoyu Wang, Cheng Chen, Xuefeng Cui, Fa Zhang
To promote innovation in computational methods, we generate a novel simulated dataset to benchmark different methods of localization and classification of biological macromolecules in tomograms.
1 code implementation • ICCV 2021 • Zhidong Yang, Fa Zhang, Renmin Han
The proposed method only requires a single noisy data as training input and no ground-truth is needed in the whole training procedure.
1 code implementation • ICCV 2021 • Bintao He, Fa Zhang, Huanshui Zhang, Renmin Han
Scanning transmission electron microscopy (STEM) is a powerful technique in high-resolution atomic imaging of materials.
no code implementations • 18 Jul 2020 • Rongzhe Wei, Fa Zhang, Bo Dong, Qinghua Zheng
Our metric function takes advantage of a series for high-order moment alignment, and we theoretically prove that our DWMD metric function is error-free, which means that it can strictly reflect the distribution differences between domains and is valid without any feature distribution assumption.
no code implementations • 28 Nov 2018 • Enze Zhang, Fa Zhang, Zhi-Yong Liu, Xiaohua Wan, Lifa Zhu
Electron tomography (ET) allows high-resolution reconstructions of macromolecular complexes at nearnative state.
1 code implementation • 20 May 2018 • Yu Li, Fan Xu, Fa Zhang, Pingyong Xu, Mingshu Zhang, Ming Fan, Lihua Li, Xin Gao, Renmin Han
Our method combines the strength of deep learning and statistical inference, where deep learning captures the underlying distribution of the fluorophores that are consistent with the observed time-series fluorescent images by exploring local features and correlation along time-axis, and statistical inference further refines the ultrastructure extracted by deep learning and endues physical meaning to the final image.