Wei Yi

EFL Learners' Well‐Being Affected by Their Self‐Efficacy and Resilience in AI‐Integrated Learning Environment

Wei Yi, Xiang Long

ABSTRACT With the advent of Artificial Intelligence (AI) in the academic context, the traditional learning settings have been changed to advanced instruments that boost the learners' achievement. A critical factor of learners' achievement in AI‐based settings is Psychological Well‐being (PWB). Nevertheless, detecting …

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Observation of Non-Hermitian Spectral Deformation in Complex Momentum Space

Mu Yang, Yue Li, Mingtao Xu, Wei Yi et autres

Open systems feature a variety of phenomena that arise from non-Hermitian physics. Recent theoretical studies have offered many insights into these phenomena through the non-Bloch band theory, though many of the theory's key features are experimentally elusive. In particular, the correspondence between …

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BiCAT: bidirectional cross-attention for asynchronous heterogeneous multi-source trajectory association

Xiaolong Wan, Sinuo Zheng, Mu Yan, Linao Zhang et autres

In recent years, multi-source, multi-target trajectory association is critical for air traffic management and intelligent transportation systems. Yet prevailing methods rely on rigid temporal alignment and hand-crafted rules; they deteriorate under cross-modal asynchrony, heterogeneous measurements, and high-density scenes. This paper presents BiCAT …

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Matrix information geometry-based track-before-detect algorithm for radar extended targets

Mu Yan, Weiwei Li, Yunlian Tian, Wei Yi

This paper addresses the challenge of effectively detecting weak extended targets in clutter environments. Traditional energy-based Track-Before-Detect (TBD) algorithms are susceptible to clutter dominance, resulting in degraded detection performance. Although existing information geometric methods enhance clutter suppression, they remain insufficient in effectively …

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Closed-loop detection and association integrated extended target tracking method based on shape and state information feedback

Yi Luo, M Zhong, Qinyao Chang, Weiwei Li et autres

The high resolution of modern millimeter wave radar causes the echo signal energy of a single target to occupy several resolution cells, which transforms the target tracking problem into an extended target tracking (ETT) problem. Traditional ETT often loses target information after …

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Dwell time allocation for phased array radar multi-target tracking with coherent integration loss

Tianxing Zhang, Zifang Bai, Yi Yuan, Wei Yi

Conventional dwell time allocation strategies for phased array radars often rely on an idealized signal-to-noise ratio (SNR) model, that fails to account for coherent integration loss, leading to mismatched decisions in practical environments. To address this issue, we propose a robust dwell …

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A feedback strategy based deep adaptive correction network for track-before-detect

Qinyao Chang, X J Li, Yi Luo, Miao Li et autres

Multi-frame Track-Before-Detect (MF-TBD) methods exploit temporal accumulation to enhance weak target detection, often outperforming single-frame detectors. However, conventional MF-TBD approaches process batches independently in a sliding window manner, without leveraging inter-batch information. While some existing methods incorporate fusion at the tracking level, …

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The knowledge paradox in circular retailing: How consequence severity shapes purchase intentions for remanufactured products

Wei Yi, Guohui Sun, Shenghui Wang, JiPeng Li

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Model-Based Multi-Agent Reinforcement Learning for Power Supply Assurance in Distribution Network

Zhi Fan, Wei Yi, Xingjian Li, Kang Zhou et autres

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Analysis of measurement principles and calibration methods of RF voltage-current probes

Wei Yi, Xiangjun Li, Jinwen Liu

Abstract This study systematically investigates the measurement principles and calibration methods of RF Voltage-Current Probes. Two calibration strategies, based on microwave medium-power standards and high frequency voltage standards, are designed and experimentally evaluated. Results indicate that the medium-power standard provides a shorter, …

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Research on Event Camera-Based Flame Detection Method Using Spiking Neural Network

Z Y Zhang, Sunan Xu, Wei Yi, Yuxuan Ke et autres

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Observation of Braid-Protected Unpaired Exceptional Points

Kunkun Wang, J. Lukas K. König, Lei Xiao, Wei Yi et autres

Spectral degeneracies (dubbed nodal points in momentum space) play fundamental roles in understanding exotic properties of light and matter. In lattice systems, unpaired band-structure degeneracies are subject to well-established no-go (doubling) theorems that universally apply to both closed Hermitian systems and open …

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