检索结果-内蒙古大学图书馆

arXiv 2023年

作者： Vásárhelyi, Orsolya Horvát, Emoke-Ágnes Laboratory for Networks Technology and Innovation Centre for Advanced Studies Corvinus University Budapest Hungary Department of Communication Studies School of Communication Northwestern University EvanstonIL United States Department of Computer Science McCormick School of Engineering Northwestern University EvanstonIL United States EvanstonIL United States

Online science dissemination has quickly become crucial in promoting scholars' work. Recent literature has demonstrated a lack of visibility for women's research, where women's articles receive fewer academic citations than men's. The informetric and scientometric community has briefly examined gender-based inequalities in online visibility. However, the link between online sharing of scientific work and citation impact for teams with different gender compositions remains understudied. Here we explore whether online visibility is helping women overcome the gender-based citation penalty. Our analyses cover the three broad research areas of computer Science, engineering, and Social Sciences, which have different gender representation, adoption of online science dissemination practices, and citation culture. We create a quasi-experimental setting by applying Coarsened Exact Matching, which enables us to isolate the effects of team gender composition and online visibility on the number of citations. We find that online visibility positively affects citations across research areas, while team gender composition interacts differently with visibility in these research areas. Our results provide essential insights into gendered citation patterns and online visibility, inviting informed discussions about decreasing the citation gap. © 2023, CC0.

关键词： Visibility

来源：评论

学校读者我要写书评

暂无评论

Artwork NFTs for Online Trading and Transaction Cancellation

Artwork NFTs for Online Trading and Transaction Cancellation

引用

Blockchain Computing and Applications (BCCA), International Conference on

作者： Elsi Ahmadieh Nour El Madhoun Department Communications and Computer Networks Engineering Faculty of Technology Lebanese University Beirut Lebanon LISITE Laboratory ISEP France Sorbonne Université CNRS LIP6 Paris France CNRS Laboratoire Interdisciplinaire des Sciences du Numérique Université Paris-Saclay Gif-sur-Yvette France

Blockchain, a revolutionary technology that has attracted a great deal of interest in recent years, is transforming various industries and redefining the way we think about data, transactions and trust. It began as a secure environment for online commerce and has extended its scope to other areas such as healthcare systems, e-voting, supply chain, digital assets and telecommunications. Its key features are decentralization (no need for a Trusted Third Party (TTP)), immutability, transparency and the implementation of smart contracts. These are used to automate and execute agreements between blockchain users. They are also used to create unique digital assets (such as artworks, real estate, collectibles, etc.) by representing them as Non-Fungible Tokens (NFTs). In this paper, we present a smart contracts application that allows the creation of an NFT, that represents an artwork, with the possibility of trading this NFT on a marketplace, selling it and transferring the ownership from the seller to the buyer, as well as cancelling transactions and reimbursing buyers with paid amounts

关键词：

来源：评论

学校读者我要写书评

暂无评论

Parallel chaotic sources based on microcombs

Parallel chaotic sources based on microcombs

引用

Conference on Lasers and Electro-Optics (CLEO)

作者： Bitao Shen Haowen Shu Weiqiang Xie Ruixuan Chen Zhi Liu Xuguang Zhang Yimeng Wang Yunhao Zhang Buwen Cheng Shaohua Yu John E. Bowers Lin Chang Xingjun Wang State Key Laboratory of Advanced Optical Communications System and Networks School of Electronics Peking University Beijing China Department of Electrical and Computer Engineering University of California Santa Barbara CA USA State Key Laboratory on Integrated Optoelectronics Institute of Semiconductors Chinese Academy of Sciences Beijing China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing China Peng Cheng Laboratory Shenzhen China Frontiers Science Center for Nano-Optoelectronics Peking University Beijing China

Massively parallel optical chaotic sources with large bandwidth are demonstrated based on chaotic microcombs in the AlGaAsOI platform. 30-channel parallel random bit generation with 30 Gbit/s per channel is realized b... 详细信息

ISBN: (纸本)9781957171258

关键词： Diode lasers Integrated photonics Kerr effect Nonlinear effects Optical microscopy Random number generation

来源：评论

学校读者我要写书评

暂无评论

Bandpass Filtering Power Divider With High Selectivity And Wide Stopband Based On Integrated Substrate Gap Waveguide

Bandpass Filtering Power Divider With High Selectivity And W...

引用

2021 International Conference On Electronics, Circuits And Information engineering(2021年电子、电路与信息工程国际会议)

作者： Weida He Dongya Shen Xiupu Zhang Zhidong Ruan Yunnan Provincial Engineering Laboratory of Cloud Wireless Access & Heterogeneous Networks Yunnan Un iPhotonics Labs Department of Electrical and Computer Engineering Concordia University Montreal Qu

A bandpass filtering power divider (FPD) using integrated substrate gap waveguide (ISGW) technology is proposed,which has high selectivity and wide *** filtering power divider includes three-layer *** top layer substrate realizes a perfect magnetic conductor (PMC) using periodic plated vias and metallic *** is applied for packaging filter power divider composed of substrate integrated waveguide (SIW) and microstrip to avoid interference and losses induced by external radiation emission and internal radiation *** middle layer substrate generates a gap *** the bottom layer substrate etch the slots on the metal plane and place a metal through hole in the middle of the metal layer to generate resonance and transmission zeros,and connect the microstrip to form a filter power divider *** results show that FPD has multiple transmission zeros,the passband is 13.2 to 15.5 GHz,and an insertion loss of-4 *** return loss in the passband is less than-15 dB,and the isolation below is-16.5 dB.

关键词： Integrated substrate gap waveguide (ISGW) substrate integrated waveguide (SIW) perfect magnetic conductor (PMC) packaging

来源：评论

学校读者我要写书评

暂无评论

A Survey on Indoor Visible Light Positioning Systems: Fundamentals, Applications, and Challenges

arXiv

引用

arXiv 2024年

作者： Zhu, Zhiyu Yang, Yang Chen, Mingzhe Guo, Caili Cheng, Julian Cui, Shuguang The Beijing Key Laboratory of Network System Architecture and Convergence School of Information and Communication Engineering Beijing University of Posts and Telecommunications Beijing100876 China The Department of Electrical and Computer Engineering Institute for Data Science and Computing University of Miami Coral GablesFL33146 United States The Beijing Laboratory of Advanced Information Networks School of Information and Communication Engineering Beijing University of Posts and Telecommunications Beijing100876 China The Faculty of Applied Science School of Engineering The University of British Columbia KelownaBCV1V 1V7 Canada The Chinese University of Hong Kong Shenzhen518172 China

The growing demand for location-based services in areas like virtual reality, robot control, and navigation has intensified the focus on indoor localization. Visible light positioning (VLP), leveraging visible light communications (VLC), becomes a promising indoor positioning technology due to its high accuracy and low cost. This paper provides a comprehensive survey of VLP systems. In particular, since VLC lays the foundation for VLP, we first present a detailed overview of the principles of VLC. Then, we provide an in-depth overview of VLP algorithms. The performance of each positioning algorithm is also compared in terms of various metrics such as accuracy, coverage, and orientation limitation. Beyond the physical layer studies, the network design for a VLP system is also investigated, including multi-access technologies, resource allocation, and light-emitting diode (LED) placements. Next, the applications of the VLP systems are overviewed. Finally, this paper outlines open issues, challenges, and opportunities for the research field. In a nutshell, this paper constitutes the first holistic survey on VLP from state-of-the-art studies to practical uses. Copyright © 2024, The Authors. All rights reserved.

关键词： Resource allocation

来源：评论

学校读者我要写书评

暂无评论

Space-Air-Ground Integrated Multi-domain Network Resource Orchestration based on Virtual Network Architecture: a DRL Method

arXiv

引用

arXiv 2022年

作者： Zhang, Peiying Wang, Chao Kumar, Neeraj Liu, Lei Qingdao266580 China State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Beijing100876 China Qingdao266580 China Department of Computer Science and Engineering Thapar Institute of Engineering and Technology Deemed to be University Patiala147004 India Department of Computer Science and Information Engineering Asia University Taichung41354 Taiwan School of Computer Science University of Petroleum and Energy Studies Dehradun248007 India State Key Laboratory of Integrated Services Networks Xidian University Xi’an710071 China

Traditional ground wireless communication networks cannot provide high-quality services for artificial intelligence (AI) applications such as intelligent transportation systems (ITS) due to deployment, coverage and capacity issues. The space-air-ground integrated network (SAGIN) has become a research focus in the industry. Compared with traditional wireless communication networks, SAGIN is more flexible and reliable, and it has wider coverage and higher quality of seamless connection. However, due to its inherent heterogeneity, time-varying and self-organizing characteristics, the deployment and use of SAGIN still faces huge challenges, among which the orchestration of heterogeneous resources is a key issue. Based on virtual network architecture and deep reinforcement learning (DRL), we model SAGIN’s heterogeneous resource orchestration as a multi-domain virtual network embedding (VNE) problem, and propose a SAGIN cross-domain VNE algorithm. We model the different network segments of SAGIN, and set the network attributes according to the actual situation of SAGIN and user needs. In DRL, the agent is acted by a five-layer policy network. We build a feature matrix based on network attributes extracted from SAGIN and use it as the agent training environment. Through training, the probability of each underlying node being embedded can be derived. In test phase, we complete the embedding process of virtual nodes and links in turn based on this probability. Finally, we verify the effectiveness of the algorithm from both training and testing. Copyright © 2022, The Authors. All rights reserved.

关键词： Deep learning

来源：评论

学校读者我要写书评

暂无评论

DW-GAN: A Discrete Wavelet Transform GAN for NonHomogeneous Dehazing

arXiv

引用

arXiv 2021年

作者： Fu, Minghan Liu, Huan Yu, Yankun Chen, Jun Wang, Keyan Department of Electrical and Computer Engineering McMaster University Hamilton Canada State Key Laboratory of Integrated Service Networks Xidian University Xi’an China

Hazy images are often subject to color distortion, blurring, and other visible quality degradation. Some existing CNN-based methods have great performance on removing homogeneous haze, but they are not robust in nonhomogeneous case. The reasons are mainly in two folds. Firstly, due to the complicated haze distribution, texture details are easy to be lost during the dehazing process. Secondly, since the training pairs are hard to be collected, training on limited data can easily lead to over-fitting problem. To tackle these two issues, we introduce a novel dehazing network using 2D discrete wavelet transform, namely DW-GAN. Specifically, we propose a two-branch network to deal with the aforementioned problems. By utilizing wavelet transform in DWT branch, our proposed method can retain more high-frequency knowledge in feature maps. In order to prevent over-fitting, ImageNet pre-trained Res2Net is adopted in the knowledge adaptation branch. Owing to the robust feature representations of ImageNet pre-training, the generalization ability of our network is improved dramatically. Finally, a patch-based discriminator is used to reduce artifacts of the restored images. Extensive experimental results demonstrate that the proposed method outperforms the state-of-the-arts quantitatively and qualitatively. The source code is available at https://***/ liuh127/DW-GAN-Dehazing. Copyright © 2021, The Authors. All rights reserved.

关键词： Demulsification

来源：评论

学校读者我要写书评

暂无评论

Microcomb based silicon photonics data link with 100Gbps/Lane PAM4 transmission

Microcomb based silicon photonics data link with 100Gbps/Lan...

引用

Conference on Lasers and Electro-Optics (CLEO)

作者： Haowen Shu Bitao Shen Lin Chang Yuansheng Tao Weiqiang Xie Ming Jin Andrew Netherton Xuguang Zhang Jun Qin Ruixuan Chen Shaohua Yu Xingjun Wang John. E. Bowers State Key Laboratory of Advanced Optical Communications System and Networks Peking University Beijing China Department of Electrical and Computer Engineering University of California Santa Barbara USA Peng Cheng Laboratory Shenzhen China Frontiers Science Center for Nano-Optoelectronics Peking University Beijing China

We achieve 100 Gbps/Lane PAM4 transmission by employing an AlGaAsOI microcomb source and silicon modulators. With 20 parallel wavelength channels utilized at C-band, an aggregate data rate of 2 Tbit/s is achieved.

ISBN: (数字)9781957171050

ISBN: (纸本)9781665466660

关键词： C-band Modulation Lasers and electrooptics Electro-optic modulators Data aggregation Silicon photonics

来源：评论

学校读者我要写书评

暂无评论

CNN-Enabled Multiple Power-Levels Identification in Cognitive Radio networks

CNN-Enabled Multiple Power-Levels Identification in Cognitiv...

引用

GLOBECOM 2022 - 2022 IEEE Global Communications Conference

作者： Zhenyu Tan Qi Liu Zan Li Danyang Wang Ning Zhang Hong-Ning Dai State Key Laboratory of Integrated Service Networks Xidian University Xi'an China Xinjiang Astronomical Observatory Chinese Academy of Sciences Urumqi Department of Electrical and Computer Engineering University of Windsor Windsor ON Canada Lingnan University Hong Kong

ISBN: (纸本)9781665435413

Spectrum sensing with transmit power identification can greatly facilitate the application of the hybrid spectrum access strategy in cognitive radio (CR) networks. Conventional model-driven methods suffer from severe performance degradation in low signal-to-noise ratio (SNR) regime. In this paper, we propose a multiple transmit power levels identification network (TPIN) which consists of three components. In the data preprocessing components, the covariance matrix (COV) of the received data is first employed as the observation data. Then, the residual network (ResNet) based feature extractor components is used to construct the test statistic by extracting high-dimensional features of the observation data. Furthermore, the likelihood ratio test (LRT) criterion is leveraged to design the cost function for obtaining the maximum posterior probability in the classifier components. Different from the assumption in conventional method, the prior probability of each transmit power levels is unknown to the TPIN, and the array of training set is randomly disturbed. In addition, in order to verify the ability of TPIN in data features extraction, a comparison reference experiment using a general test statistic (e.g., higher-order cumulative) as the observation data is introduced. Finally, simulation results demonstrate the identification performance of the COV-based (COV-TPIN) scheme.

关键词： Training Simulation Light rail systems Probability Feature extraction Sensors Data mining

来源：评论

学校读者我要写书评

暂无评论

DSnow: A Durer pentagon Snow structure for data center network 2020

DSnow: A Durer pentagon Snow structure for data center netwo...

引用

Proceedings of the 2020 International Conference on Cyberspace Innovation of Advanced Technologies

作者： Zhijie Han Panpan Meng Xiaoyu Du School of Computer and Information Engineering Henan University Kaifeng Henan China School of Computer and Information Engineering Henan University International Joint Research Laboratory for Cooperative Vehicular Networks of Henan Kaifeng Henan China

ISBN: (纸本)9781450387828

Data center played a key role in main internet infrastructure with the development of cloud computing. However, the traditional structure of data center networks has the problems of poor scalability, limited number of ports, and high equipment cost etc. Therefor this paper proposed a novel structure called DSnow, which based on the Durer pentagon that has fractal characteristics. Firstly, compared with DPBA(Durer- Fractal-Pentagon-Based Datacenter Network Architecture), DSnow made full use of the advantages of fractal graphics and improves its scalability; secondly, after analysis, this proved the under the same conditions, it can provide more servers than most network topologies. At last, the paper proved a routing algorithm included unicast and multicast.

关键词： data center network

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：