Journal of Information and Intelligence最新文献_第6页

Robust peer-to-peer learning via secure multi-party computation 通过安全多方计算实现健壮的点对点学习

Journal of Information and Intelligence Pub Date : 2023-11-01 DOI: 10.1016/j.jiixd.2023.08.003

Yongkang Luo , Wenjian Luo , Ruizhuo Zhang , Hongwei Zhang , Yuhui Shi

{"title":"Robust peer-to-peer learning via secure multi-party computation","authors":"Yongkang Luo , Wenjian Luo , Ruizhuo Zhang , Hongwei Zhang , Yuhui Shi","doi":"10.1016/j.jiixd.2023.08.003","DOIUrl":"10.1016/j.jiixd.2023.08.003","url":null,"abstract":"<div><p>To solve the data island problem, federated learning (FL) provides a solution paradigm where each client sends the model parameters but not the data to a server for model aggregation. Peer-to-peer (P2P) federated learning further improves the robustness of the system, in which there is no server and each client communicates directly with the other. For secure aggregation, secure multi-party computing (SMPC) protocols have been utilized in peer-to-peer manner. However, the ideal SMPC protocols could fail when some clients drop out. In this paper, we propose a robust peer-to-peer learning (RP2PL) algorithm via SMPC to resist clients dropping out. We improve the segment-based SMPC protocol by adding a check and designing the generation method of random segments. In RP2PL, each client aggregates their models by the improved robust secure multi-part computation protocol when finishes the local training. Experimental results demonstrate that the RP2PL paradigm can mitigate clients dropping out with no significant degradation in performance.</p></div>","PeriodicalId":100790,"journal":{"name":"Journal of Information and Intelligence","volume":"1 4","pages":"Pages 341-351"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949715923000550/pdfft?md5=bc876c86904042971fa81e6e58d46700&pid=1-s2.0-S2949715923000550-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77738320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling and coverage analysis of heterogeneous sub-6GHz-millimeter wave networks 6ghz以下非均匀毫米波网络建模与覆盖分析

Journal of Information and Intelligence Pub Date : 2023-11-01 DOI: 10.1016/j.jiixd.2023.06.002

Cheng Pan , Yi Guo , Gang Liu , Haiyang Ding , Zhihang Fu

{"title":"Modeling and coverage analysis of heterogeneous sub-6GHz-millimeter wave networks","authors":"Cheng Pan , Yi Guo , Gang Liu , Haiyang Ding , Zhihang Fu","doi":"10.1016/j.jiixd.2023.06.002","DOIUrl":"10.1016/j.jiixd.2023.06.002","url":null,"abstract":"<div><p>The joint adoption of sub-6GHz and millimeter wave (mmWave) technology can prevent the blind spots of coverage, enabling comprehensive coverage while realizing high-speed communication rate. According to the sensitivity of mmWave, base stations should be more densely deployed, which is not well described by existing Poisson hole process (PHP) and the Poisson point process (PPP) models. This paper establishes a sub-6GHz and mmWave hybrid heterogeneous cellular network based on the modified Poisson hole process (MPHP). In our proposed model, the sub-6GHz base stations follow the PPP, and the mmWave base stations (MBSs) follow MPHP distribution. The expressions of the coverage probability are derived by using the interference calculation method of integrating the nearest sector exclusion area. Our theoretical analysis has been verified through simulation results, suggesting that the increase in the cell radius decreases the coverage probability of signal-to-interference-plus-noise ratio (SINR), whereas the increase in the sector parameter has the opposite effect. The variation of sub-6GHz base stations (SBSs) density imposes more significant impact than the MBSs on the SINR coverage probability. In addition, the decrease in MBSs density will reduce the average bandwidth allocated to the user equipment (UE), thus reducing the rate coverage probability.</p></div>","PeriodicalId":100790,"journal":{"name":"Journal of Information and Intelligence","volume":"1 4","pages":"Pages 321-329"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949715923000252/pdfft?md5=eec6bbb4eb23cd6b9124579fd0e57b91&pid=1-s2.0-S2949715923000252-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79225631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pri-EMO: A universal perturbation method for privacy preserving facial emotion recognition Pri-EMO:一种保护隐私的通用摄动面部情绪识别方法

Journal of Information and Intelligence Pub Date : 2023-11-01 DOI: 10.1016/j.jiixd.2023.08.001

Yong Zeng, Zhenyu Zhang, Jiale Liu, Jianfeng Ma, Zhihong Liu

{"title":"Pri-EMO: A universal perturbation method for privacy preserving facial emotion recognition","authors":"Yong Zeng, Zhenyu Zhang, Jiale Liu, Jianfeng Ma, Zhihong Liu","doi":"10.1016/j.jiixd.2023.08.001","DOIUrl":"10.1016/j.jiixd.2023.08.001","url":null,"abstract":"<div><p>Facial emotion have great significance in human-computer interaction, virtual reality and people's communication. Existing methods for facial emotion privacy mainly concentrate on the perturbation of facial emotion images. However, cryptography-based perturbation algorithms are highly computationally expensive, and transformation-based perturbation algorithms only target specific recognition models. In this paper, we propose a universal feature vector-based privacy-preserving perturbation algorithm for facial emotion. Our method implements privacy-preserving facial emotion images on the feature space by computing tiny perturbations and adding them to the original images. In addition, the proposed algorithm can also enable expression images to be recognized as specific labels. Experiments show that the protection success rate of our method is above 95% and the image quality evaluation degrades no more than 0.003. The quantitative and qualitative results show that our proposed method has a balance between privacy and usability.</p></div>","PeriodicalId":100790,"journal":{"name":"Journal of Information and Intelligence","volume":"1 4","pages":"Pages 330-340"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949715923000513/pdfft?md5=6acd805c7dcedd8fb30cc2ecf57750e3&pid=1-s2.0-S2949715923000513-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84208076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CSC-GCN: Contrastive semantic calibration for graph convolution network 图卷积网络的对比语义校正

Journal of Information and Intelligence Pub Date : 2023-11-01 DOI: 10.1016/j.jiixd.2023.10.001

Xu Yang, Kun Wei, Cheng Deng

{"title":"CSC-GCN: Contrastive semantic calibration for graph convolution network","authors":"Xu Yang, Kun Wei, Cheng Deng","doi":"10.1016/j.jiixd.2023.10.001","DOIUrl":"10.1016/j.jiixd.2023.10.001","url":null,"abstract":"<div><p>Graph convolutional networks (GCNs) have been successfully applied to node representation learning in various real-world applications. However, the performance of GCNs drops rapidly when the labeled data are severely scarce, and the node features are prone to being indistinguishable with stacking more layers, causing over-fitting and over-smoothing problems. In this paper, we propose a simple yet effective contrastive semantic calibration for graph convolution network (CSC-GCN), which integrates stochastic identity aggregation and semantic calibration to overcome these weaknesses. The basic idea is the node features obtained from different aggregation operations should be similar. Toward that end, identity aggregation is utilized to extract semantic features from labeled nodes, while stochastic label noise is adopted to alleviate the over-fitting problem. Then, contrastive learning is employed to improve the discriminative ability of the node features, and the features from different aggregation operations are calibrated according to the class center similarity. In this way, the similarity between unlabeled features and labeled ones from the same class is enhanced while effectively reducing the over-smoothing problem. Experimental results on eight popular datasets show that the proposed CSC-GCN outperforms state-of-the-art methods on various classification tasks.</p></div>","PeriodicalId":100790,"journal":{"name":"Journal of Information and Intelligence","volume":"1 4","pages":"Pages 295-307"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949715923000598/pdfft?md5=efb05ea241fae4078424c9e6580d2e50&pid=1-s2.0-S2949715923000598-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135762387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Information metasurfaces and reconfigurable intelligent surfaces 信息元曲面和可重构智能曲面

Journal of Information and Intelligence Pub Date : 2023-09-01 DOI: 10.1016/j.jiixd.2023.07.001

Long Li, Rui Zhang, Tie Jun Cui

引用次数: 0

Wireless communications empowered by reconfigurable intelligent surfaces: Model-based vs model-free channel estimation 由可重构智能表面支持的无线通信:基于模型与无模型的信道估计

Journal of Information and Intelligence Pub Date : 2023-09-01 DOI: 10.1016/j.jiixd.2023.06.010

Li Wei , Chongwen Huang , George C. Alexandropoulos , Ahmet M. Elbir , Zhaohui Yang , Zhaoyang Zhang , Marco Di Renzo , Mérouane Debbah , Chau Yuen

{"title":"Wireless communications empowered by reconfigurable intelligent surfaces: Model-based vs model-free channel estimation","authors":"Li Wei , Chongwen Huang , George C. Alexandropoulos , Ahmet M. Elbir , Zhaohui Yang , Zhaoyang Zhang , Marco Di Renzo , Mérouane Debbah , Chau Yuen","doi":"10.1016/j.jiixd.2023.06.010","DOIUrl":"https://doi.org/10.1016/j.jiixd.2023.06.010","url":null,"abstract":"<div><p>Reconfigurable intelligent surfaces (RISs) are lately being attractive for their great potential in future sixth generation wireless communications (6G), which is attributed to their affordable energy consumption and easy integration. However, the large numbers of low-cost reflecting elements comprising RISs impose challenges for channel acquisition in various RIS-based wireless applications, such as RIS-enhanced orthogonal frequency-division multiplexing and multi-user multiple-input multiple-output systems. In this article, we first overview the state-of-the-art RIS hardware architectures designed to assist channel estimation for RIS-empowered wireless communication systems. We also overview existing channel estimation approaches, which are categorized into model-based and model-free techniques, and discuss their advantages and limitations depending on the RIS deployment. Design challenges with RIS-empowered systems in terms of hardware and other parameter limitations are presented, together with future research directions for channel estimation in RIS-based wireless systems, such as RISs with extremely large numbers of elements, multi-hop communications with RISs, and frequency division duplexing for high mobility systems.</p></div>","PeriodicalId":100790,"journal":{"name":"Journal of Information and Intelligence","volume":"1 3","pages":"Pages 253-266"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49727935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

DRL-based max-min fair RIS discrete phase shift optimization for MISO-OFDM systems 基于drl的MISO-OFDM系统最大最小公平RIS离散相移优化

Journal of Information and Intelligence Pub Date : 2023-09-01 DOI: 10.1016/j.jiixd.2023.06.003

Peng Chen, Huaqian Zhang, Xiao Li, Shi Jin

引用次数: 0

Reconfigurable intelligent surface with high optical-transparency based on metalmesh 基于金属网的可重构高光学透明度智能表面

Journal of Information and Intelligence Pub Date : 2023-09-01 DOI: 10.1016/j.jiixd.2023.06.008

Jing Cheng Liang , Peng Zhang , Qiang Cheng , Tie Jun Cui

{"title":"Reconfigurable intelligent surface with high optical-transparency based on metalmesh","authors":"Jing Cheng Liang , Peng Zhang , Qiang Cheng , Tie Jun Cui","doi":"10.1016/j.jiixd.2023.06.008","DOIUrl":"https://doi.org/10.1016/j.jiixd.2023.06.008","url":null,"abstract":"<div><p>Reconfigurable intelligent surfaces (RISs) have aroused extensive attentions from academic and wireless communication communities due to their abilities to customize the electromagnetic (EM) characteristics of the propagation channels flexibly and rapidly. Recent advances in theoretical innovations and prototype systems have demonstrated the advantages of RISs in terms of low cost, low power consumption, and easy deployment. Meanwhile, the optically transparent RISs are demanded in some application scenarios. In this paper, we propose a 2-bit metalmesh-based RIS with high optical-transparency. By analyzing the surface current distributions on the element, we employ the metalmesh-grid patterns and metalmesh-stripe patterns on the top and ground layers respectively. The metalmesh patterns can help improve the optical transparency of RISs, while maintaining similar microwave characteristics. The RIS can reach the optical transparency of 79%, and the reflection amplitude is greater than −3.2 dB within the operating band. Finally, to verify the capability of the proposed RIS in wavefront controls, the far-field scattering patterns of the RIS with different coding sequences are investigated and the simulation results are in good agreement with the theoretical results.</p></div>","PeriodicalId":100790,"journal":{"name":"Journal of Information and Intelligence","volume":"1 3","pages":"Pages 228-237"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49755548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Active metasurface in reflection manner for generation of reconfigurable OAM vortex beams 以反射方式产生可重构OAM涡旋光束的主动超表面

Journal of Information and Intelligence Pub Date : 2023-09-01 DOI: 10.1016/j.jiixd.2023.06.006

Yunfei Liu, Yueyi Yuan, Qun Wu, Kuang Zhang

引用次数: 0

Generation and regulation of two-dimensional autofocusing Airy beams based on holographic metasurfaces 基于全息超表面的二维自聚焦Airy光束的产生与调节

Journal of Information and Intelligence Pub Date : 2023-09-01 DOI: 10.1016/j.jiixd.2023.05.002

Song Zhang , Hao Xue , Yicen Li , Jiaqi Han , Haixia Liu , Long Li , Tie Jun Cui

{"title":"Generation and regulation of two-dimensional autofocusing Airy beams based on holographic metasurfaces","authors":"Song Zhang , Hao Xue , Yicen Li , Jiaqi Han , Haixia Liu , Long Li , Tie Jun Cui","doi":"10.1016/j.jiixd.2023.05.002","DOIUrl":"https://doi.org/10.1016/j.jiixd.2023.05.002","url":null,"abstract":"<div><p>This paper proposes a new method to generate a two-dimensional (2D) Airy beam and Airy autofocusing beam by using the scalar holographic metasurface with amplitude-phase modulation in the microwave band. The proposed holographic metasurface comprises subwavelength patch unit cells with a period of fewer than 1/8 wavelengths, which means that it has the finer sampling for electromagnetic waves and can simultaneously achieve precise modulations for the amplitude and phase of electromagnetic waves. Firstly, the 2D-Airy beam with quasi-non-diffraction and self-bending characteristics is generated, from which the holographic metasurface is designed to realize four different 2D-Airy beams with the same focus, achieving the 2D-Airy autofocusing beam in the microwave frequency. The holographic metasurface for Airy beam generation has high efficiency and an ultra-lower profile. Meanwhile, for applying the Airy beam in wireless power transfer (WPT), the efficiency of the generated Airy beam and Airy autofocusing beam is calculated for the first time in the microwave field. The simulation results show that the efficiency of the 2D-Airy beam can reach 66% at 150 mm away from the metasurface, while the efficiency of the 2D-Airy autofocusing beam at the focus, which is 280 mm from the metasurface, can reach 35%. The theoretical, simulated, and measured results show that the proposed method and holographic metasurfaces can flexibly achieve the special characteristics of self-autofocusing and self-bending Airy beams in the microwave domain, providing an effective path for wireless power transfer (WPT) scenario with radial obstructions.</p></div>","PeriodicalId":100790,"journal":{"name":"Journal of Information and Intelligence","volume":"1 3","pages":"Pages 182-196"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49766530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0