Networked

How social networks, the personalized Internet, and always-on mobile connectivity are transforming—and expanding—social life. Daily life is connected life, its rhythms driven by endless email pings and responses, the chimes and beeps of continually arriving text messages, tweets and retweets, Facebook updates, pictures and videos to post and discuss. Our perpetual connectedness gives us endless opportunities to be part of the give-and-take of networking. Some worry that this new environment makes us isolated and lonely. But in Networked, Lee Rainie and Barry Wellman show how the large, loosely knit social circles of networked individuals expand opportunities for learning, problem solving, decision making, and personal interaction. The new social operating system of “networked individualism” liberates us from the restrictions of tightly knit groups; it also requires us to develop networking skills and strategies, work on maintaining ties, and balance multiple overlapping networks. Rainie and Wellman outline the “triple revolution” that has brought on this transformation: the rise of social networking, the capacity of the Internet to empower individuals, and the always-on connectivity of mobile devices. Drawing on extensive evidence, they examine how the move to networked individualism has expanded personal relationships beyond households and neighborhoods; transformed work into less hierarchical, more team-driven enterprises; encouraged individuals to create and share content; and changed the way people obtain information. Rainie and Wellman guide us through the challenges and opportunities of living in the evolving world of networked individuals.

How social networks, the personalized Internet, and always-on mobile connectivity are transforming—and expanding—social life. Daily life is connected life, its rhythms driven by endless email pings and responses, the chimes and beeps of continually arriving text messages, tweets and retweets, Facebook updates, pictures and videos to post and discuss. Our perpetual connectedness gives us endless opportunities to be part of the give-and-take of networking. Some worry that this new environment makes us isolated and lonely. But in Networked, Lee Rainie and Barry Wellman show how the large, loosely knit social circles of networked individuals expand opportunities for learning, problem solving, decision making, and personal interaction. The new social operating system of “networked individualism” liberates us from the restrictions of tightly knit groups; it also requires us to develop networking skills and strategies, work on maintaining ties, and balance multiple overlapping networks. Rainie and Wellman outline the “triple revolution” that has brought on this transformation: the rise of social networking, the capacity of the Internet to empower individuals, and the always-on connectivity of mobile devices. Drawing on extensive evidence, they examine how the move to networked individualism has expanded personal relationships beyond households and neighborhoods; transformed work into less hierarchical, more team-driven enterprises; encouraged individuals to create and share content; and changed the way people obtain information. Rainie and Wellman guide us through the challenges and opportunities of living in the evolving world of networked individuals.

This book posits the idea that networked learning is the one new paradigm in learning theory that has resulted from the introduction of digital and networked technologies. It sets out, in a single volume, a critical review of the main ideas and then articulates the case for adopting a networked learning perspective in a variety of educational settings. This book fills a gap in the literature on networked learning. Although there are several edited volumes in the field there is no other monograph makes the academic case and provides the academic context for networked learning. This volume accomplishes three main goals. First, it assists researchers and practitioners in acquainting themselves with the field. Second, it provides resources for reference and guidance to those not well acquainted with the field. Finally and most powerfully, it also allows for the consolidation of a field that is truly multidisciplinary in a way that maintains coherence and consistency.

A research agenda for collaborative networks Purpose. Many practical application experiments and pilot cases nowadays provide evidence on what works and what still remains as a challenge for collaborative networked organizations (CNOs). The fast evolution of the information and communication technologies and in particular the so-called Internet technologies, also represents an important motivator for the emergence of new forms of collaboration. However, most efforts in this area are highly fragmented, considering only some partial facets and not a holistic perspective that would be required. We are therefore at a point in which it is necessary to define much more consolidated and sustainable research strategies for a second phase of research and development in this area. This book addresses the main disciplines involved in CNOs. It further synthesizes the views and opinions expressed by a large number of visionaries from the main disciplines involved in CNOs, and offers a comprehensive set of recommendations for the establishment of a research agenda on collaborative networks. As recognized experts in their specific areas, different authors in this book have presented work that is backed by a large number of research results, each focusing on specific facets of collaborative networks, and coming out of a large number of international and national projects.

This book offers non-experts an accessible, thoughtful introduction to the applications and infrastructure in networked computing, providing them with the information to make the right technological and organizational decisions as they work with developers to design or acquire effective computing solutions. The book uses plain English to explain important networked computing terminology and concepts, such as security, middleware, and electronic payments.

In Networked Media, Networked Rhetorics, Damien Pfister explores communicative practices in networked media environments, analyzing, in particular, how the blogosphere has changed the conduct and coverage of public debate. Pfister shows how the late modern imaginary was susceptible to “deliberation traps” related to invention, emotion, and expertise, and how bloggers have played a role in helping contemporary public deliberation evade these traps. Three case studies at the heart of Networked Media, Networked Rhetorics show how new intermediaries, including bloggers, generate publicity, solidarity, and translation in the networked public sphere. Bloggers “flooding the zone” in the wake of Trent Lott’s controversial toast to Strom Thurmond in 2002 demonstrated their ability to invent and circulate novel arguments; the pre-2003 invasion reports from the “Baghdad blogger” illustrated how solidarity is built through affective connections; and the science blog RealClimate continues to serve as a rapid-response site for the translation of expert claims for public audiences. Networked Media, Networked Rhetorics concludes with a bold outline for rhetorical studies after the internet.

This book presents novel algorithms for designing Discrete-Time Sliding Mode Controllers (DSMCs) for Networked Control Systems (NCSs) with both types of fractional delays namely deterministic delay and random delay along with different packet loss conditions such as single packet loss and multiple packet loss that occur within the sampling period. Firstly, the switching type and non-switching type algorithms developed for the deterministic type fractional delay where the delay is compensated using Thiran’s approximation technique. A modified discrete-time sliding surface is proposed to derive the discrete-time sliding mode control algorithms. The algorithm is further extended for the random fractional delay with single packet loss and multiple packet loss situations. The random fractional delay is modelled using Poisson’s distribution function and packet loss is modelled by means of Bernoulli’s function. The condition for closed loop stability in all above situations are derived using the Lyapunov function. Lastly, the efficacy of the proposed DSMC algorithms are demonstrated by extensive simulations and also experimentally validated on a servo system.

This book discusses recent advances in the estimation and control of networked systems with unacknowledged packet losses: systems usually known as user-datagram-protocol-like. It presents both the optimal and sub-optimal solutions in the form of algorithms, which are designed to be implemented easily by computer routines. It also provides MATLAB® routines for the key algorithms. It shows how these methods and algorithms can solve estimation and control problems effectively, and identifies potential research directions and ideas to help readers grasp the field more easily. The novel auxiliary estimator method, which is able to deal with estimators that consist of exponentially increasing terms, is developed to analyze the stability and convergence of the optimal estimator. The book also explores the structure and solvability of the optimal control, i.e. linear quadratic Gaussian control. It develops various sub-optimal but efficient solutions for estimation and control for industrial and practical applications, and analyzes their stability and performance. This is a valuable resource for researchers studying networked control systems, especially those related to non-TCP-like networks. The practicality of the ideas included makes it useful for engineers working with networked control.