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Virtual Communities, Social Networks and Collaboration
by Athina A. LazakidouOnline communities are among the most obvious manifestations of social networks based on new media technology. Facilitating ad-hoc communication and leveraging collective intelligence by matching similar or related users have become important success factors in almost every successful business plan. Researchers are just beginning to understand virtual communities and collaborations among participants currently proliferating across the world. Virtual Communities, Social Networks and Collaboration covers cutting edge research topics of utmost real-world importance in the specific domain of social networks. This volume focuses on exploring issues relating to the design, development, and outcomes from electronic groups and online communities, including: - The implications of social networking, - Understanding of how and why knowledge is shared among participants, - What leads to participation, effective collaboration, co-creation and innovation, - How organizations can better utilize the potential benefits of communities in both internal operations, marketing, and new product development.
Virtual Reality and Animation for MATLAB® and Simulink® Users
by Nassim KhaledAbout this book · Gives the reader hands on example-base experience for simulating dynamical models in MATLAB®/Simulink® and animating them in VRML · More than 150 images describe each step in the model realizations helping readers to understand them visually · Diverse examples and profound problem treatment enable the reader to animate complex dynamical problems m-files, Simulink models, VRML files and jpegs available for download provide full solutions for the end-of-chapter problems Virtual Reality and Animation for MATLAB® and Simulink® Users demonstrates the simulation and animation of physical systems using the MATLAB® Virtual Reality Toolbox (virtual models are created in V-Realm Builder). The book is divided into two parts; the first addresses MATLAB® and the second Simulink®. The presentation is problem-based with each chapter teaching the reader a group of essential principles in the context of a step-by-step solution to a particular issue. Examples of the systems covered include mass-spring-dampers, a crank-slider mechanism and a moving vehicle. The examples are given in ascending level of difficulty and contain MATLAB®/Simulink® codes deliberately simplified so that readers can focus on: * understanding how to link a 3-d virtual scene to MATLAB®/Simulink®; and * manipulating the 3-d virtual scene in MATLAB®/Simulink®. When studied in sequence, the chapters of this text form a coherent whole enabling the reader to gain a thorough expertise in virtual simulation and animation of dynamical models using MATLAB®/Simulink®. Individual chapters stand on their own, however, so that readers interested in a particular system can concentrate on it easily. Problems are provided in each chapter to give practice in the techniques demonstrated and to extend the range of the systems studied, for example, into the control sphere. Solution code for these problems can be downloaded from insert URL. Whether modeling the dynamics of a simple pendulum, a robot arm or a moving car, animation of a dynamical model can enliven and encourage understanding of mechanical systems and thus contribute to control design. Virtual Reality and Animation for MATLAB® and Simulink® Users will be instructive and interesting to anyone, researcher or student, working with the dynamics of physical systems. Readers are assumed to have some familiarity with MATLAB®.
Virtual Reality in Medicine
by Robert Riener Matthias HardersVirtual Reality has the potential to provide descriptive and practical information for medical training and therapy while relieving the patient or the physician. Multimodal interactions between the user and the virtual environment facilitate the generation of high-fidelity sensory impressions, by using not only visual and auditory, but also kinesthetic, tactile, and even olfactory feedback modalities. On the basis of the existing physiological constraints, Virtual Reality in Medicine derives the technical requirements and design principles of multimodal input devices, displays, and rendering techniques. Resulting from a course taught by the authors, Virtual Reality in Medicine presents examples for surgical training, intra-operative augmentation, and rehabilitation that are already in use as well as those currently in development. It is well suited as introductory material for engineering and computer science students, as well as researchers who want to learn more about basic technologies in the area of virtual reality applied to medicine. It also provides a broad overview to non-engineering students as well as clinical users, who desire to learn more about the current state of the art and future applications of this technology.
Virtualization Essentials
by Matthew PortnoyA full-color beginner's guide to the core concepts and skills of virtualizationVirtualization is the IT world's hottest trend in recent years, and many colleges do not yet have curricula in place to prepare students for this important area. This guide fills the need, with a learn-by-doing approach to mastering the core elements of virtualization. Each chapter clearly outlines what is covered, thoroughly discusses the concepts, and engages readers with hands-on tutorials. The book covers how virtualization software operates; hypervisor products; how to manage CPU, memory, storage, and networking; and much more.Fills the gap left by the many colleges and universities that are unprepared to educate IT students on virtualization, a megatrend in the IT worldCovers the fundamental concepts and skills, including how virtualization software operates within a computing environmentExplains the difference between Type 1 and Type 2 hypervisors and tells how to create a virtual machine from scratch or by migrating from physical to virtualTells how to manage the basics and how to configure supporting devices for a virtual machineVirtualization Essentials gets IT students and practitioners up to speed on one of the most important aspects of today's IT environment.
Visual Cryptography and Secret Image Sharing
by Stelvio Cimato Ching-Nung YangWith rapid progress in Internet and digital imaging technology, there are more and more ways to easily create, publish, and distribute images. Considered the first book to focus on the relationship between digital imaging and privacy protection, Visual Cryptography and Secret Image Sharing is a complete introduction to novel security methods and sharing-control mechanisms used to protect against unauthorized data access and secure dissemination of sensitive information. Image data protection and image-based authentication techniques offer efficient solutions for controlling how private data and images are made available only to select people. Essential to the design of systems used to manage images that contain sensitive data—such as medical records, financial transactions, and electronic voting systems—the methods presented in this book are useful to counter traditional encryption techniques, which do not scale well and are less efficient when applied directly to image files. An exploration of the most prominent topics in digital imaging security, this book discusses: Potential for sharing multiple secrets, Visual cryptography schemes—based either on the probabilistic reconstruction of the secret image, or on different logical operations for combining shared images, Inclusion of pictures in the distributed shares, Contrast enhancement techniques, Color-image visual cryptography, Cheating prevention, Alignment problems for image shares, Steganography and authentication In the continually evolving world of secure image sharing, a growing number of people are becoming involved as new applications and business models are being developed all the time. This contributed volume gives academicians, researchers, and professionals the insight of well-known experts on key concepts, issues, trends, and technologies in this emerging field.
Visual Studio 2012 Cookbook
by Richard Banks"Visual Studio 2012 Cookbook" is a concise and practical cookbook with recipes which get you up and running straight away with all the new functionality of Visual Studio 2012. If you are a developer excited about the new features introduced in Visual Studio 2012, then no matter what your programming language of choice is, "Visual Studio 2012 Cookbook" is for you. You should have a good knowledge of working with previous versions of Visual Studio to enjoy the recipes in this book.
VMware Cookbook: A Real-World Guide to Effective VMware Use (Cookbook Ser.)
by Ryan Troy Matthew HelmkeWith scores of step-by-step solutions, this cookbook helps you work with VMware ESXi in a wide range of network environments. You'll not only learn the basics--how to pool resources from hardware servers, computer clusters, networks, and storage, and then distribute them among virtual machines--but also how to overcome the stumbling blocks you'll encounter when you monitor systems, troubleshoot problems, and deal with security. This expanded second edition covers recent advances in vCloud Director and vShield cloud security. Ideal for system administrators of any level, VMware Cookbook also includes valuable information to help you determine your virtualization needs. Move into the cloud with vCloud Director, and secure virtual datacenters with vSphere Secure and monitor your virtual environment from the command line Manage disk, SSD, and SAN storage implementation and configuration Discover options for managing resources, such as clustering, shares, and hot add/hotplug support Configure logical and physical networks, including virtual switches and software and hardware adapters Make virtual machine replication easier by automating ESXi installations Gain valuable tips for configuration and fine-tuning
VMware Cookbook: A Real-World Guide to Effective VMware Use (Cookbook)
by Ryan Troy Matthew HelmkeIf you want to gain insight into the real-world uses of VMware ESX and ESXi, this book provides scores of step-by-step solutions for working with these products in a wide range of network environments. You'll not only learn the basics -- how to pool resources from hardware servers, computer clusters, networks, and storage, and then distribute them among virtual machines -- but also the stumbling blocks you'll encounter when you monitor systems, troubleshoot problems, and deal with security.In addition to the recipes, VMware Cookbook includes background information to help you determine your virtualization needs. You'll come to view VMware as part of the real environment, alongside operating systems, storage, and logical and physical network components.Follow best practices for installing VMware in your environmentDiscover how to secure and monitor your networkUnderstand disk storage implementation and configurationLearn resource management using the distributed resource scheduler, shares, and resource poolsConfigure logical and physical networksLearn how to clone and migrate serversGain valuable tips for configuration and fine-tuningMany resources can teach you about virtualization and the basics of VMware. This book is for system administrators who are ready to go beyond an introduction.
VMware ThinApp 4.7 Essentials
by Peter BjörkThis book is written in practical tutorial style and it offers learning through vivid examples and. Each chapter contains step-by-step instructions about everything necessary to execute a particular task. The book is designed so that you can read it from start to end for beginners or just open up any chapter and start following the recipes as a reference for advanced users,This book will be useful to developers, System admins and consultants who want to install and manage a virtualized app environment using VMware ThinApp 4.7.
VMware View 5 Desktop Virtualization Solutions
by Andre Leibovici Jason LangoneThis book will pull information and expertise from real world scenarios so as to maximize practical learning. It will explain the settings and configurations needed to have a successful desktop virtualization solution as well as the 'why' behind the decisions. This book is meant as a guide for architects, solution providers, consultants, engineers and anyone planning to design and implement a solution based on VMware View 5.
VMware vSphere 5 Administration Instant Reference
by Andy Daniel Christopher Kusek Van Van NoyCompact and portable reference guide for quick answers to VMware vSphereIf you're looking to migrate to the newest version of VMware vSphere, this concise guide will get you up to speed and down to business in no time. If you're new to VMware vSphere, this book is for you too! The compact size of this quick reference makes it easy for you to have by your side--whether you're in the field, server room, or at your desk. Helpful elements for finding information such as thumb tabs, tables of contents with page numbers at the beginning of each chapter, and special headers puts what you need at your fingertips, fast.No matter your skill level, this book's focus on essential day-to-day tasks for administering vSphere make it a handy reference for anyone.Covers the highly anticipated release of VMware vSphereAllows you to hit the ground running with the latest VMware vSphere softwareProvides you answers on the spot with concise, no-nonsense instructionDesigned for busy IT professionals, this instant reference is the perfect go-to resource.
Waveform Design for Active Sensing Systems
by Hao He Jian Li Petre StoicaWith a focus on developing computational algorithms for examining waveform design in diverse active sensing applications, this guide is ideal for researchers and practitioners in the field. The three parts conveniently correspond to the three categories of desirable waveform properties: good aperiodic correlations, good periodic correlations and beampattern matching. The book features various application examples of using the newly designed waveforms, including radar imaging, channel estimation for communications, an ultrasound system for breast cancer treatment and covert underwater communications. In addition to numerical results, the authors present theoretical analyses describing lower bounds or limitations of performance. Focusing on formulating practical problems mathematically and solving the mathematical problems using efficient and effective optimization techniques, the text pays particular attention to developing easy-to-use computational approaches. Most algorithms are accompanied by a table clearly detailing iteration steps and corresponding MATLAB codes are available on the companion website.
WCF 4.5 Multi-Layer Services Development with Entity Framework
by Mike LiuThis book is a step-by-step tutorial to guide you through learning WCF and Entity Framework. Clear step-by-step instructions and relevant screenshots will make sure you won't get lost in the new world of WCF and Entity Framework.Configuration files, host applications, test clients, and WCF services for each solution will also be available for download for you to examine, modify, and debug from the outside in.The book focuses on the essentials of using WCF and Entity Framework, rather than providing a reference to every single possibility. It leaves the reference material online where it belongs, and concentrates instead on practical examples, code, and advice.This book is for C#, VB.NET, and C++ developers who are eager to get started with WCF and Entity Framework, and want a book that is practical and rich with examples from the very beginning.Developers and architects evaluating SOA implementation technologies for their company will find this book particularly useful because it gets you started with Microsoft's tools for SOA and shows you how to customize our examples for your prototypes.This book presumes basic knowledge of C# or C++.Previous experience with Visual Studio will be helpful but is not required, as detailed instructions are given throughout the book.
We Are Anonymous: Inside the Hacker World of LulzSec, Anonymous, and the Global Cyber Insurgency
by Parmy OlsonA thrilling, exclusive expose of the hacker collectives Anonymous and LulzSec. WE ARE ANONYMOUS is the first full account of how a loosely assembled group of hackers scattered across the globe formed a new kind of insurgency, seized headlines, and tortured the feds-and the ultimate betrayal that would eventually bring them down. Parmy Olson goes behind the headlines and into the world of Anonymous and LulzSec with unprecedented access, drawing upon hundreds of conversations with the hackers themselves, including exclusive interviews with all six core members of LulzSec. In late 2010, thousands of hacktivists joined a mass digital assault on the websites of VISA, MasterCard, and PayPal to protest their treatment of WikiLeaks. Other targets were wide ranging-the websites of corporations from Sony Entertainment and Fox to the Vatican and the Church of Scientology were hacked, defaced, and embarrassed-and the message was that no one was safe. Thousands of user accounts from pornography websites were released, exposing government employees and military personnel.Although some attacks were perpetrated by masses of users who were rallied on the message boards of 4Chan, many others were masterminded by a small, tight-knit group of hackers who formed a splinter group of Anonymous called LulzSec. The legend of Anonymous and LulzSec grew in the wake of each ambitious hack. But how were they penetrating intricate corporate security systems? Were they anarchists or activists? Teams or lone wolves? A cabal of skilled hackers or a disorganized bunch of kids?WE ARE ANONYMOUS delves deep into the internet's underbelly to tell the incredible full story of the global cyber insurgency movement, and its implications for the future of computer security.
Web 2.0. Przewodnik po strategiach
by Amy ShuenPoznaj strategie i modele biznesowe, które podnios? wyniki finansowe Twojej firmy! Jak zarabia?, dostarczaj?c us?ugi za darmo?Jak stworzy? dochodowy biznes, oparty na Web 2.0?Jak w??czy? strategie Web 2.0 w istniej?ce przedsi?wzi?cie?Je?li my?lisz, ?e Web 2.0 to wy??cznie technologia budowy interaktywnych portali internetowych, jeste? w b??dzie. Web 2.0 to rewolucja! To nowy sposób komunikacji przez internet, umo?liwiaj?cy u?ytkownikom wspólne tworzenie witryny i dzielenie si? wiedz?. Dzi?ki efektom sieci Web 2.0 staje si? ?ród?em okazji biznesowych. Jest miejscem, gdzie zaawansowana technologia ??czy si? z biznesem i gdzie -- udost?pniaj?c us?ugi za darmo -- mo?esz zarabia?. Web 2.0 przyjmuje bowiem fundamentalnie odmienny punkt widzenia na relacje mi?dzy biznesem, klientami i partnerami, a wi?c udost?pnia nam wszystkim nowe modele biznesowe. Ksi??ka "Web 2.0. Przewodnik po strategiach" zawiera omówienie wszystkich potrzebnych w biznesie technik i narz?dzi analitycznych, co sk?ada si? na ogólny obraz ekonomii opartej na Web 2.0. Z tego podr?cznika dowiesz si?, jak powstaj? efekty sieci, w jaki sposób prowokowa? i wykorzystywa? okazje biznesowe oraz zarabia? pieni?dze na dostarczonych przez u?ytkowników warto?ciach. Uwierzysz, ?e za pomoc? Web 2.0 mog? bogaci? si? i korporacje, i niewielkie przedsi?biorstwa. Poznasz sprawdzone narz?dzia i strategie oraz rewolucyjne modele biznesowe, stosowane przez takie firmy, jak Google czy Amazon. Pami?taj, ?e tym firmom przynios?y one wielki sukces i ogromne zyski.Wspólna warto?? u?ytkowników portalu Odkrywanie i wykorzystywanie grup internetowychPozytywne efekty sieciowe w Web 2.0Spieni??anie sieci spo?ecznychKoszty pozyskania klienta i szybko?? wzrostu zysku z reklamTworzenie warto?ci w sieciach spo?ecznychRozwijanie zdolno?ci adaptacyjnych przez Web 2.0Style innowacjiTworzenie biznesplanów Web 2.0 Przy??cz si? do rewolucji Web 2.0 i zarabiaj w internecie Wyró?nienie Magazynu Literackiego KSI??KIRedakcja Magazynu Literackiego KSI??KI przyzna?a ksi??ce "Web 2.0 - przewodnik po strategiach" w kwietniu 2009 roku Wyró?nienie za ksi??k? miesi?ca w kategorii Ekonomia http://helion.pl/img/rozne/wyd/wyd7_6.jpg" />
Web Application Development with Yii and PHP
by Jeffrey WinesettThis is a step-by-step tutorial for developing web applications using Yii. This book follows the test-first, incremental, and iterative approach to software development while developing a project task management application. If you are a PHP programmer with knowledge of object oriented programming and want to rapidly develop modern, sophisticated web applications, then this book is for you. No prior knowledge of Yii is required to read this book.
Web Design For Dummies
by Lisa LopuckGet up to speed on the newest technologies, tools, and possibilities in web designHave a great idea for a web site but don't know where or how to begin? Web Design For Dummies, 3rd Edition is an ideal starting point! Fully updated to cover the latest and the greatest in the world of web design, this fun-but-straightforward guide gets you caught up with everything you need to know to organize your ideas, create a template, start development, test to make sure everything is working properly, and launch your finished site. Packed with invaluable advice on incorporating social media aspects, linking content with social sites, and designing for mobile devices, this book will have you web designing like a pro in no time.Highlights the many significant changes in the world of web design since the previous edition, including the introduction of HTML5, new technologies for sharing media, mobile web design, and moreZeroes in on effectively using color, text, and navigationReveals helpful advice for avoiding common pitfallsDetails ways to connect with social sites like Twitter and Facebook Web Design For Dummies, 3rd Edition goes beyond just making a basic web site and instead encourages you to create a site that is appealing, practical, and useful.
The Web Designer's Roadmap: Your Creative Process for Web Design Success
by Giovanni DiFetericiThe Web Designer's Roadmap is a full-color book about the creative process and the underlying principles that govern that process. While other books cover the nuts 'n' bolts of how to design the elements that make up websites, this book outlines how effective designers go about their work, illustrating the complete creative process from start to finish. As well as how-to content, the book draws on interviews with a host of well-known design gurus, including Shaun Inman, Daniel Burka, Meagan Fisher, Donald Norman and Dan Rubin. A non-academic book, this is a fun and easy read packed with practical information.
Web Marketing All-in-One For Dummies
by Ian Lurie Elizabeth Marsten Marty Dickinson Michael Becker ArnoldBuild an online presence for your business with web marketingWhy buy several books on web marketing when you can buy just one? With this must-have resource, five marketing professionals team up to share their expertise in the field of web marketing so that you can benefit from their know-how. Covering everything from site building, search engine optimization, and web analytics to online advertising, e-mail marketing, and harnessing the potential of social media, this team of web marketing gurus brings their insight and experience to the table and it's yours for the taking. Provides invaluable advice for establishing a web presence and getting your message out with online advertisingZeroes in on search engine optimization so that your site can be discovered by search engines and, ultimately, consumersExplains how web analytics can offer you a better understanding of your web marketing effortsDetails ways to establish an online voice with blogging and podcastingWalks you through the potential of social media marketing with Facebook, Twitter, and Google+Looks at various options for getting your message onto mobile platformsWeb Marketing All in One For Dummies, 2nd Edition shows you how to get your online name out there so that customers can find you easily.
Web Performance Daybook Volume 2
by Stoyan StefanovPerformance is critical to the success of any website, and help with using today's new tools is key. In this remarkable guide, 32 leading web performance experts offer practical tips, techniques, and advice for optimizing your site's user experience. Originally written for an online calendar, this collection of articles will inspire you to squeeze every ounce of performance from your site--whether you're a web developer, mobile developer, or web designer. Check the table of contents and you'll be convinced. In order of appearance, Web Performance Daybook authors include: Patrick Meenan Nicholas Zakas Guy Podjarny Stoyan Stefanov Tim Kadlec Brian Pane Josh Fraser Steve Souders Betty Tso Israel Nir Marcel Duran Éric Daspet Alois Reitbauer Matthew Prince Buddy Brewer Alexander Podelko Estelle Weyl Aaron Peters Tony Gentilcore Matthew Steele Bryan McQuade Tobie Langel Billy Hoffman Joshua Bixby Sergey Chernyshev JP Castro Pavel Paulau David Calhoun Nicole Sullivan James Pearce Tom Hughes-Croucher Dave Artz
Web Services Testing with soapUI
by Charitha KankanamgeWeb Services Testing with soapUI starts with an overview of SOA and web services testing, and gets your hands dirty with a sample project which makes use of open source web service engine, Apache Axis2. All demonstrations and hands-on exercises are based on this sample project. This book is a practical and comprehensive tutorial for easy and efficient web services testing to build high quality service-oriented solutions. This book directly targets software quality assurance professionals, software project managers, and software developers interested in automated or manual testing web services and SOA. Whether you are a seasoned SOA professional or a novice user, with this book you'll learn to effectively use soapUI in testing service-oriented solutions for functional as well as non-functional web services.
Web Workers
by Ido GreenWeb apps would run much better if heavy calculations could be performed in the background, rather than compete with the user interface. With this book, you'll learn how to use Web Workers to run computationally intensive JavaScript code in a thread parallel to the UI. Yes, multi-threaded programing is complicated, but Web Workers provide a simple API that helps you be productive without the complex algorithms. If you have an intermediate to advanced understanding of JavaScript-- especially event handling and callbacks--you're ready to tackle Web Workers with the tools in this example-driven guide. Start creating Web Workers and understand what they can and can't do Determine which browser versions support the API Use dedicated Web Workers for tasks that consume a lot of CPU, such as data parsing Explore use cases for creating inline Workers, such as encapsulating a web app in one page Create a shared Worker to communicate multiple web app instances to the server, and other uses Learn best practices for debugging Web Workers Apply Web Workers within the server-side Node environment
web2py Application Development Cookbook
by Mariano Reingart Pablo Martin MuloneThis is a cookbook and you may read the chapters in any order. The recipes need not be read sequentially. There are a good amount of code examples and relevant screenshots to ease learning pains. The target audience are Python developers with basic knowledge of web2py who want to gain further knowledge of web2py
Webbots, Spiders, and Screen Scrapers, 2nd Edition
by Michael SchrenkThere's a wealth of data online, but sorting and gathering it by hand can be tedious and time consuming. Rather than click through page after endless page, why not let bots do the work for you?Webbots, Spiders, and Screen Scrapers will show you how to create simple programs with PHP/CURL to mine, parse, and archive online data to help you make informed decisions. Michael Schrenk, a highly regarded webbot developer, teaches you how to develop fault-tolerant designs, how best to launch and schedule the work of your bots, and how to create Internet agents that:–Send email or SMS notifications to alert you to new information quickly–Search different data sources and combine the results on one page, making the data easier to interpret and analyze–Automate purchases, auction bids, and other online activities to save timeSample projects for automating tasks like price monitoring and news aggregation will show you how to put the concepts you learn into practice.This second edition of Webbots, Spiders, and Screen Scrapers includes tricks for dealing with sites that are resistant to crawling and scraping, writing stealthy webbots that mimic human search behavior, and using regular expressions to harvest specific data. As you discover the possibilities of web scraping, you'll see how webbots can save you precious time and give you much greater control over the data available on the Web.
WebGL: Up and Running
by Tony Parisi<p>Get a quick introduction to WebGL, the new standard for 3D rendering on the Web and a member of HTML5’s family of technologies. With this hands-on guide, you’ll learn essential WebGL development and production concepts, using the JavaScript 3D engine Three.js. At the end of the book, you’ll put everything together and build a full 3D application with WebGL.</p>