Search Results for author: Ping Xu

Found 9 papers, 2 papers with code

scCDCG: Efficient Deep Structural Clustering for single-cell RNA-seq via Deep Cut-informed Graph Embedding

2 code implementations9 Apr 2024 Ping Xu, Zhiyuan Ning, Meng Xiao, Guihai Feng, Xin Li, Yuanchun Zhou, Pengfei Wang

Addressing these limitations, we introduce scCDCG (single-cell RNA-seq Clustering via Deep Cut-informed Graph), a novel framework designed for efficient and accurate clustering of scRNA-seq data that simultaneously utilizes intercellular high-order structural information.

Clustering Dimensionality Reduction +2

Robust Distributed Learning Against Both Distributional Shifts and Byzantine Attacks

no code implementations29 Oct 2022 Guanqiang Zhou, Ping Xu, Yue Wang, Zhi Tian

In this paper, we propose a new algorithm that equips distributed learning with robustness measures against both distributional shifts and byzantine attacks.

QC-ODKLA: Quantized and Communication-Censored Online Decentralized Kernel Learning via Linearized ADMM

no code implementations4 Aug 2022 Ping Xu, Yue Wang, Xiang Chen, Zhi Tian

We then propose a novel learning framework named Online Decentralized Kernel learning via Linearized ADMM (ODKLA) to efficiently solve the online decentralized kernel learning problem.

Quantization

Tracking quantum state evolution by the Berry curvature with a two-level system

no code implementations1 Feb 2021 Ze-Lin Zhang, Ping Xu, Zhen-Biao Yang

We investigate two kinds of topological structures (sphere and torus) spanned by the controlled parameters of a driven two-level system's Hamiltonian, and consider the connection between the structures and the system's dynamics.

Quantum Physics

Derived Differentiable Manifolds

no code implementations2 Jun 2020 Kai Behrend, Hsuan-Yi Liao, Ping Xu

Therefore, we can make sense of "homotopy fibered product" and "derived intersection" of submaifolds in a smooth manifold in the homotopy category of derived manifolds.

Differential Geometry High Energy Physics - Theory Algebraic Geometry Algebraic Topology Category Theory

COKE: Communication-Censored Decentralized Kernel Learning

no code implementations28 Jan 2020 Ping Xu, Yue Wang, Xiang Chen, Zhi Tian

This paper studies the decentralized optimization and learning problem where multiple interconnected agents aim to learn an optimal decision function defined over a reproducing kernel Hilbert space by jointly minimizing a global objective function, with access to their own locally observed dataset.

Variational Quantum Circuits for Quantum State Tomography

1 code implementation16 Dec 2019 Yong Liu, Dongyang Wang, Shichuan Xue, Anqi Huang, Xiang Fu, Xiaogang Qiang, Ping Xu, He-Liang Huang, Mingtang Deng, Chu Guo, Xuejun Yang, Junjie Wu

We demonstrate our method by performing numerical simulations for the tomography of the ground state of a one-dimensional quantum spin chain, using a variational quantum circuit simulator.

Quantum Machine Learning Quantum State Tomography

Symplectic realizations of holomorphic Poisson manifolds

no code implementations30 Dec 2015 Damien Broka, Ping Xu

Symplectic realization is a longstanding problem which can be traced back to Sophus Lie.

Differential Geometry Mathematical Physics Algebraic Geometry Complex Variables Mathematical Physics Symplectic Geometry

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