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.

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. - Winner of the 2017 PROSE Award in Biomedicine & Neuroscience and the 2017 British Medical Association (BMA) Award in Neurology - 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

"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.

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.

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

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.

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.

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.

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