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1,114 results on '"Zhou, Yuxin"'

1. Existence of One-Step Replica Symmetry Breaking and phase transition in the Ising pure $p$-Spin Glass

Author

Zhou, Yuxin

Subjects
Mathematics - Probability, Mathematical Physics
Abstract

We provide the first example of one-step replica symmetry breaking (1RSB) for the mean field Ising spin glasses at finite temperature and verify the first part of Gardner's conjecture. Specifically, Gardner conjectured that for Ising pure $p$-spin glasses with $p\geq 3,$ there are two phase transitions: the Parisi measure is Replica Symmetric (RS) at high temperatures, then transitions to One-Step Replica Symmetry Breaking (1RSB) at a lower temperature, and finally reaches Full Replica Symmetry Breaking (FRSB) at very low temperatures. Our main results verify the first part of the Gardner transition: for any $p \geq 3,$ there exists a unique $\beta^p_1>0$ such that the Parisi measure is RS for $0 < \beta \leq \beta^p_{1}$ and then 1RSB for $\beta^p_1 < \beta \leq \beta^p_1+\epsilon_p$ with some $\epsilon_p>0.$, Comment: 17 pages, 1 figure

Published
2024

4. Knowledge Distillation Based Semantic Communications For Multiple Users

Author

Liu, Chenguang, Zhou, Yuxin, Chen, Yunfei, and Yang, Shuang-Hua

Subjects
Electrical Engineering and Systems Science - Signal Processing, Computer Science - Machine Learning
Abstract

Deep learning (DL) has shown great potential in revolutionizing the traditional communications system. Many applications in communications have adopted DL techniques due to their powerful representation ability. However, the learning-based methods can be dependent on the training dataset and perform worse on unseen interference due to limited model generalizability and complexity. In this paper, we consider the semantic communication (SemCom) system with multiple users, where there is a limited number of training samples and unexpected interference. To improve the model generalization ability and reduce the model size, we propose a knowledge distillation (KD) based system where Transformer based encoder-decoder is implemented as the semantic encoder-decoder and fully connected neural networks are implemented as the channel encoder-decoder. Specifically, four types of knowledge transfer and model compression are analyzed. Important system and model parameters are considered, including the level of noise and interference, the number of interfering users and the size of the encoder and decoder. Numerical results demonstrate that KD significantly improves the robustness and the generalization ability when applied to unexpected interference, and it reduces the performance loss when compressing the model size., Comment: Accepted by IEEE Transactions on Wireless Communications

Published
2023
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6. A quorum sensing active matter in a confined geometry

Author

Zhou, Yuxin, Li, Yunyun, and Marchesoni, Fabio

Subjects
Condensed Matter - Soft Condensed Matter, Condensed Matter - Statistical Mechanics
Abstract

Inspired by the problem of biofilm growth, we numerically investigate clustering in a two-dimensional suspension of active (Janus) particles of finite size confined in a circular cavity. Their dynamics is regulated by a non-reciprocal mechanism that causes them to switch from active to passive above a certain threshold of the perceived near-neighbor density (quorum sensing).A variety of cluster phases -- glassy, solid (hexatic) and liquid -- is observed depending on the particle dynamics at the boundary, the quorum sensing range, and the level of noise

Published
2023

7. Correlation between Somatosensory and Motor Function in Stroke Patients of Different Age Groups and Thoughts on Full-cycle Rehabilitation: a Multicenter Cross-sectional Study

Author

LIN Jiaying, TU Shuting, LIN Jiali, ZHOU Yuxin, HE Xinyuan, JIA Jie

Subjects
stroke, age factors, somatosensory function, motor function, full-cycle rehabilitation, multicenter study, Medicine
Abstract

Background Somatosensory and motor dysfunctions are common after stroke, both lead to limitations in activities of daily living and social participation, there is still a lack of research evidence to analyze the relationship between the two from multiple perspectives. Objective To investigate the relationship between somatosensory and motor function among overall, upper and lower extremities in different-age-group patients within one year after stroke. Methods This prospective study enrolled the poststroke patients within one year from several hospitals in Fujian Province from October 2022 to April 2023. The sensory subscale of the Fugl-Meyer assessment (FMA-S) and the sensory subitem of National Institute of Health Stroke Scale (NIHSS) were used to evaluate the patient's somatosensory function. The motor subscale of the Fugl-Meyer assessment (FMA-M), Brunnstrom assessment, Berg Balance Scale (BBS) and the motor subitem of NIHSS were used to evaluate the patient's motor function. Modified Barthel Index (MBI) was used to evaluate the patient's activities of daily living (ADL). Hospital Anxiety and Depression Scale (HADS) was used to evaluate the patient's psychosomatic function. They were divided into two groups (the elderly group/the young and middle-aged group) according to their age, we compared the differences in general information and rehabilitation assessments between the two groups. And we analyzed the correlation between somatosensory function and motor function/ADL/psycho-psychological function. Results A total of 254 patients were included, with an average age of (61.0±12.3) years and an average disease course of 30.0 (17.0, 65.5) days. There were 112 cases (44.1%) in the elderly group and 142 cases (55.9%) in the young and middle-aged group. FMA-S and FMA-M scores were positively correlated in both groups (rs values were 0.313 and 0.171, both P

Published
2024
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8. MvRNA: A New Multi-view Deep Neural Network for Predicting Parkinson’s Disease

Author

Chen, Lin, Zhou, Yuxin, Zhang, Xiaobo, Zhang, Zhehao, Zheng, Hailong, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Yang, De-Nian, editor, Xie, Xing, editor, Tseng, Vincent S., editor, Pei, Jian, editor, Huang, Jen-Wei, editor, and Lin, Jerry Chun-Wei, editor

Published
2024
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13. The Spherical Mixed $p$-Spin Glass At Zero Temperature

Author

Zhou, Yuxin

Subjects
Mathematics - Probability, Mathematical Physics
Abstract

We consider the spherical mixed $p$-spin models and investigate the structure of the Parisi measure at zero temperature. We prove that for the spherical spin models with $n$ components, the Parisi measure at zero temperature is at most $n$-RSB or $n$-FRSB. We also provide a necessary and sufficient computational criterion for the spherical mixed $p$-spin model to be $k$-RSB or $k$-FRSB, $k \leq n.$, Comment: 26 pages, 5 figures

Published
2023

15. The Spherical p+s Spin Glass At Zero Temperature

Author

Auffinger, Antonio and Zhou, Yuxin

Subjects
Mathematics - Probability, Mathematical Physics
Abstract

We determine the structure of the Parisi measure at zero temperature for the spherical p+s spin glass model. We show that depending on the values of p and s, four scenarios may emerge, including the existence of 1-FRSB and 2-FRSB phases as predicted by Crisanti and Leuzzi [10, 11]. We also provide consequences for the model at low temperature., Comment: 39 pages, 3 figures

Published
2022

44. Clustering of quorum sensing colloidal particles

Author

Zhou Yuxin, Li Yunyun, and Marchesoni Fabio

Subjects
cluster, quorum sensing, non-reciprocal, phase separation, colloidal particles, Science, Engineering (General). Civil engineering (General), TA1-2040
Abstract

We propose a simple model of colloidal suspension, whereby individual particles change their diffusivity from high (hot) to low (cold), as the local concentration of their closest peers grows larger than a certain threshold. Such a non-reciprocal interactive mechanism is known in biology as quorum sensing. Upon tuning the parameters of the adopted quorum sensing protocol, the suspension is numerically shown to go through a variety of two-phase (hot and cold) configurations. This is an archetypal model with potential applications in robotics and social studies.

Published
2024
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45. The Enlightenment of the Education of the Jia Family in the Dream of the Red Chamber to Modern Education Based on the Satir Iceberg Model

Author

Zhou, Yuxin, Lin, Xuanxuan, Striełkowski, Wadim, Editor-in-Chief, Black, Jessica M., Series Editor, Butterfield, Stephen A., Series Editor, Chang, Chi-Cheng, Series Editor, Cheng, Jiuqing, Series Editor, Dumanig, Francisco Perlas, Series Editor, Al-Mabuk, Radhi, Series Editor, Scheper-Hughes, Nancy, Series Editor, Urban, Mathias, Series Editor, Webb, Stephen, Series Editor, Yacob, Shakila, editor, Cicek, Berat, editor, Rak, Joanna, editor, and Ali, Ghaffar, editor

Published
2023
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