Download or read book Network Connectivity written by Chen Chen and published by Springer Nature. This book was released on 2022-05-31 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: Networks naturally appear in many high-impact domains, ranging from social network analysis to disease dissemination studies to infrastructure system design. Within network studies, network connectivity plays an important role in a myriad of applications. The diversity of application areas has spurred numerous connectivity measures, each designed for some specific tasks. Depending on the complexity of connectivity measures, the computational cost of calculating the connectivity score can vary significantly. Moreover, the complexity of the connectivity would predominantly affect the hardness of connectivity optimization, which is a fundamental problem for network connectivity studies. This book presents a thorough study in network connectivity, including its concepts, computation, and optimization. Specifically, a unified connectivity measure model will be introduced to unveil the commonality among existing connectivity measures. For the connectivity computation aspect, the authors introduce the connectivity tracking problems and present several effective connectivity inference frameworks under different network settings. Taking the connectivity optimization perspective, the book analyzes the problem theoretically and introduces an approximation framework to effectively optimize the network connectivity. Lastly, the book discusses the new research frontiers and directions to explore for network connectivity studies. This book is an accessible introduction to the study of connectivity in complex networks. It is essential reading for advanced undergraduates, Ph.D. students, as well as researchers and practitioners who are interested in graph mining, data mining, and machine learning.
Download or read book IBM zEnterprise BladeCenter Extension Network Connectivity Options written by Patty Driver and published by IBM Redbooks. This book was released on 2014-05-07 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: This IBM® RedpaperTM publication describes the configuration of the networking equipment that attaches to the IBM zEnterprise® BladeCenter® Extension (zBX), which allows communication with the applications that reside on the intraensemble data network (IEDN). In most cases, the IEDN remains a closed Layer-2 network to maintain a highly available and secure environment that IBM can support. Therefore, when connecting to the IEDN, Layer-3 routed connectivity is still the preferred method. However, now the zBX top-of-rack (TOR) switches support Layer-2 switched connections that can provide an easier migration path when moving data center workloads to the zBX environment. This paper includes a brief introduction to the IEDN architecture and configuration and how these types of connections work. It also introduces the zBX architecture and explains the implications that network connections can have on the redundancy and high availability setup for this system. Finally, this paper provides concrete examples for connecting the IEDN and external data network through zBX for both Layer-3 routed and Layer-2 switched connection configuration options. This paper is intended for network architects and network administrators who are responsible for designing and implementing zBX network configurations. It is assumed that you have a basic background in IBM zEnterprise and network concepts.
Download or read book Designing Connected Products written by Claire Rowland and published by "O'Reilly Media, Inc.". This book was released on 2015-05-18 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt: Networked thermostats, fitness monitors, and door locks show that the Internet of Things can (and will) enable new ways for people to interact with the world around them. But designing connected products for consumers brings new challenges beyond conventional software UI and interaction design. This book provides experienced UX designers and technologists with a clear and practical roadmap for approaching consumer product strategy and design in this novel market. By drawing on the best of current design practice and academic research, Designing Connected Products delivers sound advice for working with cross-device interactions and the complex ecosystems inherent in IoT technology.
Download or read book Connectivity of Communication Networks written by Guoqiang Mao and published by Springer. This book was released on 2017-02-28 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces a number of recent developments on connectivity of communication networks, ranging from connectivity of large static networks and connectivity of highly dynamic networks to connectivity of small to medium sized networks. This book also introduces some applications of connectivity studies in network optimization, in network localization, and in estimating distances between nodes. The book starts with an overview of the fundamental concepts, models, tools, and methodologies used for connectivity studies. The rest of the chapters are divided into four parts: connectivity of large static networks, connectivity of highly dynamic networks, connectivity of small to medium sized networks, and applications of connectivity studies.
Download or read book Optical Wireless Communications for Broadband Global Internet Connectivity written by Arun K. Majumdar and published by Elsevier. This book was released on 2018-10-19 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical Wireless Communications for Broadband Global Internet Connectivity: Fundamental and Potential Applications provides a comprehensive overview for readers who require information about the fundamental science behind optical wireless communications, as well as up-to-date advanced knowledge of the state-of-the-art technologies available today. The book is a useful resource for scientists, researchers, engineers and students interested in understanding optical, wireless communication systems for global channels. Readers will find beneficial knowledge on how related technologies of optical wireless communications can be integrated into achieving worldwide Internet connectivity. Presents an in-depth coverage of information on optical wireless communication in a single source Combines the fundamentals with the most recent advanced technology of achieving global Internet access and connectivity Provides derivations of the mathematical equations Includes between chapter sections where information and learning from one chapter is connected to other chapters
Download or read book Akamai State of the Internet Connectivity Report written by Akamai Technologies and published by Akamai Technologies. This book was released on 2016-06-21 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Akamai’s globally distributed Intelligent Platform™ allows us to gather massive amounts of data on many metrics including Internet connection speeds, network connectivity/availability issues, and IPv6 adoption progress as well as traffic patterns across leading web properties and digital media providers. Each quarter, Akamai publishes the State of the Internet Report based on this data.
Download or read book Handbook of Networking Connectivity written by Gary R. McClain and published by Academic Press. This book was released on 2014-05-10 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Networking & Connectivity focuses on connectivity standards in use, including hardware and software options. The book serves as a guide for solving specific problems that arise in designing and maintaining organizational networks. The selection first tackles open systems interconnection, guide to digital communications, and implementing TCP/IP in an SNA environment. Discussions focus on elimination of the SNA backbone, routing SNA over internets, connectionless versus connection-oriented networks, internet concepts, application program interfaces, basic principles of layering, protocols and services, application layer, and conformance testing. The book then takes a look at integrated services digital network, an overview of the synchronous optical network, and X.25 and worldwide networking. The publication ponders on Metropolitan Area Networks (MAN), an overview of the switched multimegabit data service, and Ethernet/802.3 and Token Ring/802.5. Topics include Ethernet versus token ring, Ethernet/802.3, customer network management, MAN conception and technology, and SMDS specifications and sources and interface protocol. The selection is a vital source of data for systems professionals and researchers interested in networking and connectivity.
Download or read book Pervasive Networks and Connectivity written by and published by DCE Research Reports. This book was released on with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fundamentals of Brain Network Analysis written by Alex Fornito and published by Academic Press. This book was released on 2016-03-04 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Brain Network Analysis is a comprehensive and accessible introduction to methods for unraveling the extraordinary complexity of neuronal connectivity. From the perspective of graph theory and network science, this book introduces, motivates and explains techniques for modeling brain networks as graphs of nodes connected by edges, and covers a diverse array of measures for quantifying their topological and spatial organization. It builds intuition for key concepts and methods by illustrating how they can be practically applied in diverse areas of neuroscience, ranging from the analysis of synaptic networks in the nematode worm to the characterization of large-scale human brain networks constructed with magnetic resonance imaging. This text is ideally suited to neuroscientists wanting to develop expertise in the rapidly developing field of neural connectomics, and to physical and computational scientists wanting to understand how these quantitative methods can be used to understand brain organization. Extensively illustrated throughout by graphical representations of key mathematical concepts and their practical applications to analyses of nervous systems Comprehensively covers graph theoretical analyses of structural and functional brain networks, from microscopic to macroscopic scales, using examples based on a wide variety of experimental methods in neuroscience Designed to inform and empower scientists at all levels of experience, and from any specialist background, wanting to use modern methods of network science to understand the organization of the brain
Download or read book Enhancing Rural Transport Connectivity to Regional and International Transport Networks in Asia and the Pacific written by Economic and Social Commission for Asia and the Pacific and published by United Nations. This book was released on 2020-03-10 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rural transport is a lifeline for roughly 50% of the worlds population. It supports the movement of essential goods into rural areas, such as inputs to agricultural production, as well as the movement of goods out of rural areas, such as food and forestry products heading for urban markets. Improving rural connectivity is a concern not only of local level government, but also those agencies responsible for national, state and other transport network levels. In view of ESCAPs historical involvement in regional transport agreements, the Ministerial Conference on Transport at its third session in 2016 mandated the ESCAP secretariat to develop a policy framework to improve rural transport connectivity to these regional networks. Against this background, this publication aims to stimulate a wider discussion on what governments can do to enhance rural transport connectivity to higher level networks, and in doing so, thereby make their rural transport networks more effective conduits for socioeconomic development. The study has provided a conceptual framework for rural transport connectivity, described the concepts about the vertical connectivity, rural transport connectivity within planning and policy frameworks, the concept of hierarchy from "Growth Point" to "Rural Hub", rural infrastructure connectivity policies, institutional aspects and the concept of integrating connectivity into the investment prioritization process as well as the need for measuring and monitoring rural transport connectivity. The study has provided a few recommendations including to increase investment in rural transport connectivity, including rural transport services and transport nodes, strengthen rural road asset management, increase efforts to monitor rural transport connectivity, including the data for use of the Rural Access Index, Strengthen inter-departmental coordination, Improve coordination between international organizations, governments and other stakeholders as well as to strengthen research on the rural transport.
Download or read book The role of internet connectivity for the economic development of less developed countries written by Barbara Hatzimichail and published by diplom.de. This book was released on 2003-10-21 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inhaltsangabe:Abstract: The current wave of globalisation the trend towards worldwide integration of markets is spurred by the development of ICTs, including the Internet (Miria Pigato, 2001). But there exists founded concern whether this development reaches Less Developed Countries (LDCs). Technological transformations, such as Information Communication Technology (ICT), open new possibilities in various areas. With a rapid technological development the world faces the challenge to match the pace of technological innovation with national and global policy innovation. This paper will analyse the following hypotheses: 1. Internet connectivity has potential to promote economic growth and support sustainable development for LDCs. 2. The application of the Internet technology carries risks for LDCs. 3. Successful application of Internet technology requires appropriate sustainable policies and strategies. The analysis is based upon literature review of economic and development theories, literature about ICT in development with particular focus on the Internet, country and development related information, and statistical data focussing in particular on South Africa and Uganda. Inhaltsverzeichnis:Table of Contents: INTRODUCTION6 1.OVERVIEW - LITERATURE REVIEW11 2.THE INTERNET AND E-BUSINESS20 2.1Internet20 2.2E-Business21 2.3Internet Connectivity - Indicators22 3.ECONOMIC BENEFITS27 3.1Global proximity, global business networking27 3.2Communication and information retrieval28 3.3E-business opportunities for on-line trade32 4.RELATION BETWEEN ECONOMIC GROWTH AND INTERNET CONNECTIVITY34 4.1South Africa - Regression analysis35 4.2Uganda - Regression analysis38 4.3Comparison South Africa versus Uganda39 5.RISKS AND CONSTRAINTS FOR LDCS41 5.1The Digital Gap / Divide41 5.2Constraints and the widening gap in LDCs43 5.3Barriers and limitations for E-business51 5.4Policies to overcome constraints, barriers and limitations53 6.CONCLUSIONS58 7.APPENDIX60 7.1Appendix - South Africa Statistical Data60 7.2Appendix - Uganda Statistical Data70 BIBLIOGRAPHY80
Download or read book Maritime Networks Port Efficiency and Hinterland Connectivity in the Mediterranean written by Jean-François Arvis and published by World Bank Publications. This book was released on 2018-11-29 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: For millennia, the Mediterranean has been one of the most active trading areas, supported by a transport network connecting riparian cities and beyond to their hinterland. The Mediterranean has complex trade patterns and routes--but with key differences from the past. It is no longer an isolated world economy: it is both a trading area and a transit area linking Europe and North Africa with the rest of the world through the hub-and-spoke structure of maritime networks. Understanding how trade connectivity works in the Mediterranean, and elsewhere, is important to policy makers, especially those in developing countries in the Mediterranean, concerned with the economic benefits of large investment in infrastructure. Better connectivity is expected to increase trade with distant markets and stimulate activities in the hinterland. This book is a practical exploration of the three interdependent dimensions of trade connectivity: maritime networks, port efficiency, and hinterland connectivity. Because of the complexity and richness of maritime and trade patterns in the Mediterranean, the research book combines both a regional focus and globally scalable lessons. This book is intended for a wide readership of policy makers in maritime affairs, trade, or industry; professionals from the world of finance or development institutions; and academics. It combines empirical analysis of microeconomic shipping and port data with three case studies of choice of port (focusing on Spain, Egypt, and Morocco) and five case studies on hinterland development (Barcelona; Malta; Marseilles; Port Said East, Egypt; and Tanger Med, Morocco).
Download or read book Impact Networks written by David Ehrlichman and published by Berrett-Koehler Publishers. This book was released on 2021-10-12 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practical guide shows how to facilitate collaboration among diverse individuals and organizations to navigate complexity and create change in our interconnected world. The social and environmental challenges we face today are not only complex, they are also systemic and structural and have no obvious solutions. They require diverse combinations of people, organizations, and sectors to coordinate actions and work together even when the way forward is unclear. Even so, collaborative efforts often fail because they attempt to navigate complexity with traditional strategic plans, created by hierarchies that ignore the way people naturally connect. By embracing a living-systems approach to organizing, impact networks bring people together to build relationships across boundaries; leverage the existing work, skills, and motivations of the group; and make progress amid unpredictable and ever-changing conditions. As a powerful and flexible organizing system that can span regions, organizations, and silos of all kinds, impact networks underlie some of the most impressive and large-scale efforts to create change across the globe. David Ehrlichman draws on his experience as a network builder; interviews with dozens of network leaders; and insights from the fields of network science, community building, and systems thinking to provide a clear process for creating and developing impact networks. Given the increasing complexity of our society and the issues we face, our ability to form, grow, and work through networks has never been more essential.
Download or read book Connectivity Networks and Flows written by Andreas Hepp and published by Hampton Press (NJ). This book was released on 2008 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book offers its readers a critical engagement with three key concepts for social and communication theory today - connectivity, networks and flows. The contributors are committed to conceptualizing contemporary communications in a changing world. They point to globalizing and deterritorializing processes, and to the increasing significance of mobilities in late modern existence - yet this is also a book about the continuing importance of locality, senses of place and physically copresent interaction in daily living." "Connectivity, Networks and Flows combines theoretical reflection with analysis of specific media and cultural practices. Featured examples of such practices include uses of mobile phones and the Internet, activities of online (and offline) working and socializing, and constructions of liveness and immediacy in electronically mediated communication. The book will be of particular interest to researchers and students in communications, media and cultural studies, sociology and social theory."--BOOK JACKET.
Download or read book Handbook of functional connectivity Magnetic Resonance Imaging methods in CONN written by Alfonso Nieto-Castanon and published by Hilbert Press. This book was released on 2020-01-31 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook describes methods for processing and analyzing functional connectivity Magnetic Resonance Imaging (fcMRI) data using the CONN toolbox, a popular freely-available functional connectivity analysis software. Content description [excerpt from introduction] The first section (fMRI minimal preprocessing pipeline) describes standard and advanced preprocessing steps in fcMRI. These steps are aimed at correcting or minimizing the influence of well-known factors affecting the quality of functional and anatomical MRI data, including effects arising from subject motion within the scanner, temporal and spatial image distortions due to the sequential nature of the scanning acquisition protocol, and inhomogeneities in the scanner magnetic field, as well as anatomical differences among subjects. Even after these conventional preprocessing steps, the measured blood-oxygen-level-dependent (BOLD) signal often still contains a considerable amount of noise from a combination of physiological effects, outliers, and residual subject-motion factors. If unaccounted for, these factors would introduce very strong and noticeable biases in all functional connectivity measures. The second section (fMRI denoising pipeline) describes standard and advanced denoising procedures in CONN that are used to characterize and remove the effect of these residual non-neural noise sources. Functional connectivity Magnetic Resonance Imaging studies attempt to quantify the level of functional integration across different brain areas. The third section (functional connectivity measures) describes a representative set of functional connectivity measures available in CONN, each focusing on different indicators of functional integration, including seed-based connectivity measures, ROI-to-ROI measures, graph theoretical approaches, network-based measures, and dynamic connectivity measures. Second-level analyses allow researchers to make inferences about properties of groups or populations, by generalizing from the observations of only a subset of subjects in a study. The fourth section (General Linear Model) describes the mathematics behind the General Linear Model (GLM), the approach used in CONN for all second-level analyses of functional connectivity measures. The description includes GLM model definition, parameter estimation, and hypothesis testing framework, as well as several practical examples and general guidelines aimed at helping researchers use this method to answer their specific research questions. The last section (cluster-level inferences) details several approaches implemented in CONN that allow researchers to make meaningful inferences from their second-level analysis results while providing appropriate family-wise error control (FWEC), whether in the context of voxel-based measures, such as when studying properties of seed-based maps across multiple subjects, or in the context of ROI-to-ROI measures, such as when studying properties of ROI-to-ROI connectivity matrices across multiple subjects.
Download or read book Brain connectivity in neurological disorders written by Alessandro Salvalaggio and published by Frontiers Media SA. This book was released on 2023-10-25 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mapping psychopathology with mri and connectivity analysis written by Long-Biao Cui and published by Frontiers Media SA. This book was released on 2023-03-07 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt:
