47 citations · 104 across the 27 of their papers we have counts for
27 papers
Observation of gamma rays up to 320 TeV from the middle-aged TeV pulsar wind nebula HESS J1849000
M. Amenomori, S. Asano, Y. W. Bao +115
Gamma rays from HESS J1849000, a middle-aged TeV pulsar wind nebula (PWN), are observed by the Tibet air shower array and the muon detector array. The detection significance of…
Towards Imbalanced Large Scale Multi-label Classification with Partially Annotated Labels
XIn Zhang, Yuqi Song, Fei Zuo +1
Multi-label classification is a widely encountered problem in daily life, where an instance can be associated with multiple classes. In theory, this is a supervised learning method…
URLLC in IRS-Aided MIMO Systems: Finite Blocklength Analysis and Design
Xin Zhang, Shenghui Song
This paper investigates the ultra reliable and low latency communication (URLLC) performance of the IRS-aided MIMO system. The upper and lower bounds of the optimal average error p…
Optical study of three-dimensional Weyl semimetal MnSn
L. Y. Cao, Z. A. Xu, B. X. Gao +5
Three-dimensional (3D) Weyl semimetal MnSn has attracted tremendous attention due to its great application potential. However, the complex magnetic structures at different temp…
Understanding Privacy Over-collection in WeChat Sub-app Ecosystem
Xiaohan Zhang, Yang Wang, Xin Zhang +3
Nowadays the app-in-app paradigm is becoming increasingly popular, and sub-apps have become an important form of mobile applications. WeChat, the leading app-in-app platform, provi…
GICI-LIB: A GNSS/INS/Camera Integrated Navigation Library
Cheng Chi, Xin Zhang, Jiahui Liu +3
Accurate navigation is essential for autonomous robots and vehicles. In recent years, the integration of the Global Navigation Satellite System (GNSS), Inertial Navigation System (…
Active IRS-Aided MIMO Systems: How Much Gain Can We Get?
Zeyan Zhuang, Xin Zhang, Dongfang Xu +1
Intelligent reflecting surfaces (IRSs) have emerged as a promising technology to improve the efficiency of wireless communication systems. However, passive IRSs suffer from the ``m…
Fundamental Limits of Non-Centered Non-Separable Channels and Their Application in Holographic MIMO Communications
Xin Zhang, Shenghui Song, Khaled B. Letaief
The classical Rician Weichselberger channel and the emerging holographic multiple-input multiple-output (MIMO) channel share a common characteristic of non-separable correlation, w…
A Heterogeneous Parallel Non-von Neumann Architecture System for Accurate and Efficient Machine Learning Molecular Dynamics
Zhuoying Zhao, Ziling Tan, Pinghui Mo +5
This paper proposes a special-purpose system to achieve high-accuracy and high-efficiency machine learning (ML) molecular dynamics (MD) calculations. The system consists of field p…
Robust Extrinsic Self-Calibration of Camera and Solid State LiDAR
Jiahui Liu, Xingqun Zhan, Cheng Chi +2
This letter proposes an extrinsic calibration approach for a pair of monocular camera and prism-spinning solid-state LiDAR. The unique characteristics of the point cloud measured r…
Secrecy Analysis for MISO Broadcast Systems with Regularized Zero-Forcing Precoding
Xin Zhang, Shenghui Song, Yonina C. Eldar
As an effective way to enhance the physical layer security (PLS) for the broadcast channel (BC), regularized zero-forcing (RZF) precoding has attracted much attention. However, the…
An Effective Approach for Multi-label Classification with Missing Labels
Xin Zhang, Rabab Abdelfattah, Yuqi Song +1
Compared with multi-class classification, multi-label classification that contains more than one class is more suitable in real life scenarios. Obtaining fully labeled high-quality…
Mutual Information Density of Massive MIMO Systems over Rayleigh-Product Channels
Xin Zhang, Shenghui Song
The Rayleigh-product channel model is utilized to characterize the rank deficiency caused by keyhole effects. However, the finite blocklength analysis for Rayleigh product channels…
Secrecy Analysis for IRS-aided Wiretap MIMO Communications: Fundamental Limits and System Design
Xin Zhang, Shenghui Song
In order to meet the demands of future innovative applications, many efforts have been made to exceed the limits predicted by Shannon's Theory. Besides the investigation of beyond-…
NET-FLEET: Achieving Linear Convergence Speedup for Fully Decentralized Federated Learning with Heterogeneous Data
Xin Zhang, Minghong Fang, Zhuqing Liu +3
Federated learning (FL) has received a surge of interest in recent years thanks to its benefits in data privacy protection, efficient communication, and parallel data processing. A…
Linear quadratic leader-follower stochastic differential games for mean-field switching diffusions
Siyu Lv, Jie Xiong, Xin Zhang
In this paper, we consider a linear quadratic (LQ) leader-follower stochastic differential game for regime switching diffusions with mean-field interactions. One of the salient fea…
Improving Tese Case Generation for Python Native Libraries Through Constraints on Input Data Structures
Xin Zhang, Xutong Ma, Jiwen Yan +3
Modern Python projects execute computational functions using native libraries and give Python interfaces to boost execution speed; hence, testing these libraries becomes critical t…
Cross-Camera Trajectories Help Person Retrieval in a Camera Network
Xin Zhang, Xiaohua Xie, Jianhuang Lai +1
We are concerned with retrieving a query person from multiple videos captured by a non-overlapping camera network. Existing methods often rely on purely visual matching or consider…
Dynamic Cournot-Nash Equilibrium: The Non-Potential Case
Julio Backhoff-Veraguas, Xin Zhang
We consider a large population dynamic game in discrete time where players are characterized by time-evolving types. It is a natural assumption that the players' actions cannot ant…
Designing a Concentrated High-Efficiency Thermionic Solar Cell Enabled by Graphene Collector
Xin Zhang, Xiaohang Chen, Jinchan Chen +2
We propose a concentrated thermionic emission solar cell design, which demonstrates a high solar-to-electricity energy conversion efficiency larger than 10\% under 600 sun, by harn…
Spatial CUSUM for Signal Region Detection
Xin Zhang, Zhengyuan Zhu
Detecting weak clustered signal in spatial data is important but challenging in applications such as medical image and epidemiology. A more efficient detection algorithm can provid…
Ergodic Secrecy Rate of Antenna-Selection-Aided MIMOME Channels with BPSK/QPSK Modulations
Chongjun Ouyang, Zeliang Ou, Pei Yang +3
This paper analyzes transmit antenna selection (TAS) under Rayleigh flat fading for BPSK/QPSK modulations in multiple-input multiple-output wiretap channels, also termed as multipl…
Performance of Multiple Antennas Selection in SIMO Systems with BPSK/QPSK Modulations
Chongjun Ouyang, Zeliang Ou, Pei Yang +3
This paper studies the performance of single-input multiple-output (SIMO) systems under receive antenna selection (RAS) and BPSK/QPSK modulations. At the receiver, a subset of bran…
Secure and Efficiently Searchable IoT Communication Data Management Model: Using Blockchain as a new tool
Ziqing Guo, Hua Zhang, Xin Zhang +2
With the rapid development of the Internet of things (IoT), more and more IoT devices are connected and communicate frequently. In this background, the traditional centralized secu…