Search Results for author: Jimin Wang

Found 9 papers, 3 papers with code

Differentially Private Distributed Nonconvex Stochastic Optimization with Quantized Communications

no code implementations27 Mar 2024 Jialong Chen, Jimin Wang, Ji-Feng Zhang

This paper proposes a new distributed nonconvex stochastic optimization algorithm that can achieve privacy protection, communication efficiency and convergence simultaneously.

Stochastic Optimization

Consensus-Based Distributed Nonlinear Filtering with Kernel Mean Embedding

no code implementations4 Dec 2023 Liping Guo, Jimin Wang, Yanlong Zhao, Ji-Feng Zhang

To show the proposed distributed filter being capable of achieving the centralized estimation accuracy, a centralized filter, serving as an extension of the standard Kalman filter in the state space to the RKHS, is developed first.

Differentially Private Distributed Stochastic Optimization with Time-Varying Sample Sizes

no code implementations18 Oct 2023 Jimin Wang, Ji-Feng Zhang

In this paper, two-time scale stochastic approximation-type algorithms for differentially private distributed stochastic optimization with time-varying sample sizes are proposed using gradient- and output-perturbation methods.

Stochastic Optimization

Differentially Private Bipartite Consensus over Signed Networks with Time-Varying Noises

no code implementations22 Dec 2022 Jimin Wang, Jieming Ke, Ji-Feng Zhang

In order to achieve privacy protection, the variance of the added noise is allowed to be increased, and substantially different from the existing works.

How do people describe locations during a natural disaster: an analysis of tweets from Hurricane Harvey

1 code implementation27 Sep 2020 Yingjie Hu, Jimin Wang

Social media platforms, such as Twitter, have been increasingly used by people during natural disasters to share information and request for help.

Are We There Yet? Evaluating State-of-the-Art Neural Network based Geoparsers Using EUPEG as a Benchmarking Platform

1 code implementation15 Jul 2020 Jimin Wang, Yingjie Hu

In June 2019, a geoparsing competition, Toponym Resolution in Scientific Papers, was held as one of the SemEval 2019 tasks.

Benchmarking Information Retrieval +3

Enhancing spatial and textual analysis with EUPEG: an extensible and unified platform for evaluating geoparsers

1 code implementation9 Jul 2020 Jimin Wang, Yingjie Hu

EUPEG is an open source and Web based benchmarking platform which hosts a majority of open corpora, geoparsers, and performance metrics reported in the literature.

Benchmarking

2D-Dirac surface states and bulk gap probed via quantum capacitance in a 3D topological insulator

no code implementations5 Dec 2019 Jimin Wang, Cosimo Gorini, Klaus Richter, Zhiwei Wang, Yoichi Ando, Dieter Weiss

BiSbTeSe$_2$ is a 3D topological insulator (3D-TI) with Dirac type surface states and low bulk carrier density, as donors and acceptors compensate each other.

Mesoscale and Nanoscale Physics

Limits on Axion Couplings from the first 80-day data of PandaX-II Experiment

no code implementations25 Jul 2017 Changbo Fu, Xiaopeng Zhou, Xun Chen, Yunhua Chen, Xiangyi Cui, Deqing Fang, Karl Giboni, Franco Giuliani, Ke Han, Xingtao Huang, Xiangdong Ji, Yonglin Ju, Siao Lei, Shaoli Li, Huaxuan Liu, Jianglai Liu, Yugang Ma, Yajun Mao, Xiangxiang Ren, Andi Tan, Hongwei Wang, Jimin Wang, Meng Wang, Qiuhong Wang, Siguang Wang, Xuming Wang, Zhou Wang, Shiyong Wu, Mengjiao Xiao, Pengwei Xie, Binbin Yan, Yong Yang, Jianfeng Yue, Hongguang Zhang, Tao Zhang, Li Zhao, Ning Zhou

We report new searches for the solar axions and galactic axion-like dark matter particles, using the first low-background data from PandaX-II experiment at China Jinping Underground Laboratory, corresponding to a total exposure of about $2. 7\times 10^4$ kg$\cdot$day.

High Energy Physics - Experiment Solar and Stellar Astrophysics High Energy Physics - Phenomenology

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