- Table View
- List View
Python Programming for Data Analysis
by José UnpingcoThis textbook grew out of notes for the ECE143 Programming for Data Analysis class that the author has been teaching at University of California, San Diego, which is a requirement for both graduate and undergraduate degrees in Machine Learning and Data Science. This book is ideal for readers with some Python programming experience. The book covers key language concepts that must be understood to program effectively, especially for data analysis applications. Certain low-level language features are discussed in detail, especially Python memory management and data structures. Using Python effectively means taking advantage of its vast ecosystem. The book discusses Python package management and how to use third-party modules as well as how to structure your own Python modules. The section on object-oriented programming explains features of the language that facilitate common programming patterns.After developing the key Python language features, the book moves on to third-party modules that are foundational for effective data analysis, starting with Numpy. The book develops key Numpy concepts and discusses internal Numpy array data structures and memory usage. Then, the author moves onto Pandas and details its many features for data processing and alignment. Because strong visualizations are important for communicating data analysis, key modules such as Matplotlib are developed in detail, along with web-based options such as Bokeh, Holoviews, Altair, and Plotly.The text is sprinkled with many tricks-of-the-trade that help avoid common pitfalls. The author explains the internal logic embodied in the Python language so that readers can get into the Python mindset and make better design choices in their codes, which is especially helpful for newcomers to both Python and data analysis. To get the most out of this book, open a Python interpreter and type along with the many code samples.
Python Programming Recipes for IoT Applications (Transactions on Computer Systems and Networks)
by Jivan S. Parab Gourish Naik Madhusudan Ganuji Lanjewar Marlon Darius Sequeira Arman Yusuf ShaikhThe book comprehensively covers the most important applications of the internet of things (IoT) using Python programming on Raspberry pi, Micropython Py Board, and NVIDIA Jetson Board. The authors have used an immersive ‘hands-on’ approach to help readers gain expertise in developing working code for real-world IoT applications. The book focuses on industry-standard embedded platforms for IoT applications. It also gives a glimpse of python programming and setup configuration of these embedded platforms. The later chapter highlights basic interface applications with Raspberry Pi. Exclusive advanced IoT applications on the Micropython Pyboard are also covered. The last two chapters deal with the NVIDIA Jetson Nano board programming for machine learning applications with FoG/cloud computing. The various IoT applications with different embedded platforms in this volume are best-suited for undergraduate/postgraduate students and researchers who want to get exposed to python programming for IoT applications. This book will enable readers to design their own embedded IoT products.
QC-LDPC Code-Based Cryptography
by Marco BaldiThis book describes the fundamentals of cryptographic primitives based on quasi-cyclic low-density parity-check (QC-LDPC) codes, with a special focus on the use of these codes in public-key cryptosystems derived from the McEliece and Niederreiter schemes. In the first part of the book, the main characteristics of QC-LDPC codes are reviewed, and several techniques for their design are presented, while tools for assessing the error correction performance of these codes are also described. Some families of QC-LDPC codes that are best suited for use in cryptography are also presented. The second part of the book focuses on the McEliece and Niederreiter cryptosystems, both in their original forms and in some subsequent variants. The applicability of QC-LDPC codes in these frameworks is investigated by means of theoretical analyses and numerical tools, in order to assess their benefits and drawbacks in terms of system efficiency and security. Several examples of QC-LDPC code-based public key cryptosystems are presented, and their advantages over classical solutions are highlighted. The possibility of also using QC-LDPC codes in symmetric encryption schemes and digital signature algorithms is also briefly examined.
Qlik Sense® Cookbook
by Neeraj Kharpate Philip HandOver 80 step-by-step recipes to tackle the everyday challenges faced by Qlik Sense® developers About This Book * Create dynamic dashboards for business intelligence * Discover the techniques and practices for Qlik Sense® * Delve into a broad range of topics covering the Qlik Sense® backend and the all-important user interface Who This Book Is For The book is for everybody who have been exposed to Qlik Sense® and want to start using it actively for business intelligence. Anybody with prior knowledge of its sister product, QlikView, will also benefit from this book. Familiarity with the basics of business intelligence is a prerequisite. What You Will Learn * Source, load, preview, and distribute your organization's information * Maximize the effect of visualizations for different types of data * Get to grips with the new visualization functions and add bespoke features not covered in the standard options * Leverage scripting tools, techniques, and best practices that once implemented, never stop adding value * Make your user interface more advanced and intuitive with various custom objects and indicators * Explore various tips and tricks of navigation for the Qlik Sense® frontend * Develop creative extensions for your Qlik Sense® dashboard In Detail This book is an excellent guide for all aspiring Qlik Sense® developers. It will take you through the basics, right through to the use of more advanced functions. With the recipes in this book, you will be empowered to create fully featured desktop applications in Qlik Sense®. Starting with a quick refresher on obtaining data from data files and databases, this book moves on to the more refined features of Qlik Sense®, including visualization, scripting, and set analysis. The tips and tricks provided will help you to overcome challenging situations while developing your applications in Qlik Sense®. This and more will help you to deliver engaging dashboards and reports efficiently. By the end of the book, you will be an expert user of Qlik Sense® and will be able to use its features effectively for business intelligence in an enterprise environment. Style and approach This book is the perfect mix of essential theory combined with real-life examples, with clear explanations of sophisticated Qlik Sense® concepts. Each recipe begins with a task-based problem and the answers are provided in simple steps. This book follows an intuitive problem and solution approach that is easy to follow.
QoS-Aware Virtual Network Embedding
by Chunxiao Jiang Peiying ZhangAs an important future network architecture, virtual network architecture has received extensive attention. Virtual network embedding (VNE) is one of the core services of network virtualization (NV). It provides solutions for various network applications from the perspective of virtual network resource allocation. The Internet aims to provide global users with comprehensive coverage. The network function requests of hundreds of millions of end users have brought great pressure to the underlying network architecture. VNE algorithm can provide effective support for the reasonable and efficient allocation of network resources, so as to alleviate the pressure off the Internet. At present, a distinctive feature of the Internet environment is that the quality of service (QoS) requirements of users are differentiated. Different regions, different times, and different users have different network function requirements. Therefore, network resources need to be reasonably allocated according to users' QoS requirements to avoid the waste of network resources. In this book, based on the analysis of the principle of VNE algorithm, we provide a VNE scheme for users with differentiated QoS requirements. We summarize the common user requirements into four categories: security awareness, service awareness, energy awareness, and load balance, and then introduce the specific implementation methods of various differentiated QoS algorithms. This book provides a variety of VNE solutions, including VNE algorithms for single physical domain, VNE algorithms for across multiple physical domains, VNE algorithms based on heuristic method, and VNE algorithms based on machine learning method.
QOS-Enabled Networks: Tools and Foundations (Wiley Series on Communications Networking & Distributed Systems #37)
by Miguel Barreiros Peter LundqvistWritten by two experts in the field who deal with QOS predicaments every day and now in this 2nd edition give special attention to the realm of Data Centers, QoS Enabled Networks:Tools and Foundations, 2nd Edition provides a lucid understanding of modern QOS theory mechanisms in packet networks and how to apply them in practice. This book is focuses on the tools and foundations of QoS providing the knowledge to understand what benefits QOS offers and what can be built on top of it.
QOS-Enabled Networks
by Miguel Barreiros Peter LundqvistWith a foreword by Kannan Kothandaraman"This is the first book about QOS that I actually enjoyed reading precisely because the authors focused on real-life QoS and not in academic discussions about it."Per Nihlen, IP Network Manager, NORDUnetThe new authoritative, practical guide to delivering QOS guaranteesThis new benchmark in quality of service (QOS) study is written by two experts in the field who deal with QOS predicaments every day. The authors not only provide a lucid understanding of modern theory of QOS mechanisms in packet networks but how to apply them in practice. In addition, they detail the QOS management features found in modern routers used by Internet Service Providers (ISPs) and large enterprise companies and networks, all in an effort to enable network managers and engineers to configure production networks with a quality of service guarantee. The book's focus on addressing network behavior ("real effects") in relation to the configuration of network elements (routers and switches), is both refreshing and insightful.QOS-Enabled Networks contains up-to-date coverage of:QOS mechanisms in packet networks and how to apply them in practiceQOS management features now common in modern-day routersHow network behavior is related to configuration of network elementsLayer 2 VPN and QOSQOS in mobile LTE networksQOS-Enabled Networks is an invaluable guide for networking engineers needing to provide QOS services for service providers, ISPs and large enterprises, as well as for network design and operations engineers.
QoS for Fixed and Mobile Ultra-Broadband (Wiley - IEEE)
by Toni JanevskiProvides extensive coverage of standardized QoS technologies for fixed and mobile ultra-broadband networks and services—bringing together technical, regulation, and business aspects The Quality of Service (QoS) has been mandatory for traditional telecommunication services such as telephony (voice) and television (TV) since the first half of the past century, however, with the convergence of telecommunication networks and services onto Internet technologies, the QoS provision remains a big challenge for all ICT services, not only for traditional ones. This book covers the standardized QoS technologies for fixed and mobile ultra-broadband networks and services, including the business aspects and QoS regulation framework, which all will have high impact on the ICTs in the current and the following decade. QoS for Fixed and Mobile Ultra-Broadband starts by introducing readers to the telecommunications field and the technology, and the many aspects of both QoS and QoE (Quality of Experience). The next chapter devotes itself to Internet QoS, starting with an overview of numerous technology protocols and finishing with business and regulatory aspects. The next three chapters look at QoS in NGN and Future Networks, QoS for fixed ultra-broadband, and QoS for mobile ultra-broadband. The book also provides readers with in-depth accounts of services in fixed and mobile ultra-broadband; broadband QoS parameters, KPIs, and measurements; network neutrality; and the QoS regulatory framework. Comprehensively covers every aspect of QoS technology for fixed and mobile ultra-broadband networks and services, including the technology, the many regulations, and their applications in business Explains how the QoS is transiting from the traditional telecom world to an all-IP world Presents all the fundamentals of QoS regulation, as well as SLA regulation QoS for Fixed and Mobile Ultra-Broadband is an excellent resource for managers, engineers, and employees from regulators, ICT government organizations, telecommunication companies (operators, service providers), ICT companies, and industry. It is also a good book for students and professors from academia who are interested in understanding, implementation, and regulation of QoS for fixed and mobile ultra-broadband.
A Quadratic Constraint Approach to Model Predictive Control of Interconnected Systems (Studies In Systems, Decision And Control #148)
by Anthony Tri Tran C. Quang HaThis book focuses on the stabilization and model predictive control of interconnected systems with mixed connection configurations. It introduces the concept of dissipation-based quadratic constraint for developing attractivity assurance methods for interconnected systems. In order to develop these methods, distributed and decentralized architectures are employed, whereby the communication between subsystems is fully connected, partially connected, or completely disconnected. Given that the control inputs are entirely or partially decoupled between subsystems and no additional constraints are imposed on the interactive variables beyond the coupling constraint itself, the proposed approaches can be used with various types of systems and applications. Further, the book describes how the effects of coupling delays and data losses in device networks are resolved. From a practical perspective, the innovations presented are of benefit in applications in a broad range of fields, including the process and manufacturing industries, networked robotics, and network-centric systems such as chemical process systems, power systems, telecommunication networks, transportation networks, and, no less importantly, supply chain automation.
Qualität im wirtschaftspolitischen Journalismus
by Kim Otto Andreas KöhlerDieses Buch fasst die aktuelle Diskussion um die Qualität des wirtschaftspolitischen Journalismus zusammen. Ausgehend von den Herausforderungen eines zunehmend komplexeren und globalisierten Berichterstattungsfeldes Wirtschaft werden Anforderungen an den wirtschaftspolitischen Journalismus formuliert. Aufbauend auf diesen theoretischen Herausforderungen werden Strategien der Qualitätssicherung in deutschen Wirtschaftsredaktionen von deren Vertretern vorgestellt und Beispiele qualitativ hochwertigen wirtschaftspolitischen Journalismus‘ von Journalistinnen undJournalisten aus der Praxis dargestellt. Damit gibt der Band einen Überblick über theoretische Anforderungen, Strategien und Beispiele in der journalistischen Praxis.
Qualitative Communication Research Methods
by Thomas R. Lindlof Bryan C. TaylorQualitative Communication Research Methods, Fourth Edition introduces you to qualitative research in speech and mass communication. Award-winning scholars and authors Thomas R. Lindlof and Bryan C. Taylor guide you through every step of the qualitative process, from developing research topics and questions through writing a final report. You are given numerous examples of work in the field to illustrate how studies are designed, carried out, written, evaluated, and related to theory. In addition to covering the theories and methods currently used in qualitative communication research, the authors also discuss important trends influencing the future of that research, helping you make informed judgments about the significance and consequences of recent trends. New to the Fourth Edition: A new chapter titled “The Diversity of Qualitative Research in Communication Subfields” provides readers with a complete guide to the field’s distinctive subfields and enables you to identify the research agenda that best represents your own interests.Two rising subfields— Political Communication and Communication Activism— have been added, resulting in 13 subfields covered. Two major phases of data analysis have been split into separate chapters, enabling you to concentrate on the initial steps of analysis before moving on to the interpretation phase of analysis. Discussions of important intellectual and institutional trends currently reshaping the landscape of qualitative research, including Materialist Theory, Big Data, and Open-Access publishing, provide you with cutting-edge knowledge and skills that affect what you study and how you study it. An analysis of new developments in media and technology shows you how social media networks and other digital platforms are not only topics of research, but also the means for collecting and analyzing data.
Qualitative Communication Research Methods (Fourth Edition)
by Thomas R. Lindlof Bryan C. TaylorQualitative Communication Research Methods, Fourth Edition introduces you to qualitative research in speech and mass communication. Award-winning scholars and authors Thomas R. Lindlof and Bryan C. Taylor guide you through every step of the qualitative process, from developing research topics and questions through writing a final report. You are given numerous examples of work in the field to illustrate how studies are designed, carried out, written, evaluated, and related to theory. In addition to covering the theories and methods currently used in qualitative communication research, the authors also discuss important trends influencing the future of that research, helping you make informed judgments about the significance and consequences of recent trends.
Qualitative Forschung in der Kommunikationswissenschaft: Eine Praxisorientierte Einführung (Studienbücher Zur Kommunikations- Und Medienwissenschaft Ser.)
by Michael Meyen Maria Löblich Senta Pfaff-Rüdiger Claudia RiesmeyerDas Lehrbuch versteht sich als Anleitung zum Forschen: Wo lassen sich qualitative Methoden in der Kommunikationswissenschaft gewinnbringend einsetzen? Wie muss eine Untersuchung aufgebaut werden und wie werden Befragte oder Texte so ausgewählt, dass man am Ende verallgemeinern kann? Wie konstruiere ich einen Interview-Leitfaden und was muss ich beachten, damit eine Gruppendiskussion oder eine Beobachtung wirklich funktionieren? Befrage ich offline oder online und was kann ich tun, damit ich nicht in einem Materialberg untergehe? Mit zahlreichen Beispielen aus der Forschungspraxis.
Qualitative Research in Journalism: Taking It to the Streets
by Sharon Hartin IorioThis volume highlights the integration of qualitative research methods into traditional journalism, offering new ways of expanding and enhancing news coverage. Designed for readers without prior experience in social science research, this collection presents a wide variety of qualitative techniques and their applications in journalistic practice. The work brings together contributions from professional journalists and journalism scholars who are highly experienced in conducting qualitative research. These experts demonstrate how valid, reliable qualitative procedures can be used to increase coverage and offer new insights. Written in a straightforward, reader-friendly style, features in this volume include: *real-world examples from contemporary newsrooms and interviews with practicing journalists who use the techniques of qualitative research in reporting; *a rationale for the use of qualitative methods in journalism, with an illustration of how various qualitative methods tie together; *step-by-step instructions for applying each methodology; *a solid foundation for understanding the history and theory behind qualitative research and its usefulness in journalism; *chapters on pairing qualitative and quantitative methods in journalism and on detailing partnerships between academics and professional journalists to facilitate newsroom research and reporting; and *a discussion of "objectivity" in qualitative research and in journalism that offers an ethic for journalists of today. The methodologies covered here include oral and life histories, textual analysis, focused interviews, ethnographies, focus groups, and case studies. In addition, a recently developed technique, civic mapping, is presented as a qualitative tool for reporting. Qualitative Research in Journalism is an indispensable resource for current and future journalists interested in enhancing their coverage of the news.
Qualitative Research Methods: Collecting Evidence, Crafting Analysis, Communicating Impact
by Sarah J. TracyThe definitive step-by step resource for qualitative and ethnographic research Qualitative Research Methods: Collecting Evidence, Crafting Analysis, Communicating Impact is a comprehensive guide on both the theoretical foundations and practical application of qualitative methodology. Adopting a phronetic-iterative approach, this foundational book leads readers through the chronological progression of a qualitative research project, from designing a study and collecting and analyzing data to developing theories and effectively communicating the results—allowing readers to employ qualitative methods in their projects as they follow each chapter. Coverage of topics such as qualitative theories, ethics, sampling, interview techniques, qualitative quality, and advice on practical fieldwork provides clear and concise guidance on how to design and conduct sound research projects. Easy-to-follow instructions on iterative qualitative data analysis explain how to organize, code, interpret, make claims, and build theory. Throughout, the author offers her own backstage stories about fieldwork, analysis, drafting, writing, and publishing, revealing the emotional and humorous aspects of practicing qualitative methods. Now in its second edition, this thorough and informative text includes new and expanded sections on topics including post-qualitative research, phenomenology, textual analysis and cultural studies, gaining access to elite and difficult to access populations, on persuasive writing, novel interviewing approaches, and more. Numerous examples, case studies, activities, and discussion questions have been updated to reflect current research and ensure contemporary relevance. Written in an engaging and accessible narrative style by an acclaimed scholar and researcher in the field Offers new and updated examples of coding and qualitative analysis, full-color photos and illustrations, and a companion instructor website Synthesizes the most up-to-date multidisciplinary literature on qualitative research methods including seven main approaches to qualitative inquiry: grounded theory, case study, ethnography, phenomenology, narrative and autoethnography, participatory action research, and arts-based research Presents innovative qualitative data collection methods and modern representation strategies, such as virtual ethnography, photo-voice, and mobile interviewing Qualitative Research Methods: Collecting Evidence, Crafting Analysis, Communicating Impact is an ideal resource for undergraduate and graduate students, instructors, and faculty across multiple disciplines including the social sciences, healthcare, education, management, and the humanities, and for practitioners seeking expert guidance on practical qualitative methods.
Qualitative Research Methods: Collecting Evidence, Crafting Analysis, Communicating Impact
by Sarah J. TracyStep-by-step advice for constructing a qualitative project from beginning to end, covering both foundational theory and real-world application Qualitative Research Methods: Collecting Evidence, Crafting Analysis, Communicating Impact guides you through sequential stages of a qualitative research project, from project design and data collection to analysis, interpretation, and presentation. Drawing on her background in qualitative research methods and human communication, Sarah J. Tracy shares personal and backstage stories while showing you how to code data, craft meaningful claims, develop theoretical explanations, and communicate research that impacts key stakeholders. Employing a practical, problem-based contextual approach, the third edition of Qualitative Research Methods incorporates developments in textual, media, visual, arts-based, and digital analysis. New coverage includes social media data-scraping techniques, AI and ChatGPT, fieldwork and interviewing, digital ethnography, working with neurodivergent populations, adopting digital and traditional archival approaches, and much more. This edition includes a wealth of new examples, case studies, discussion questions, full-color visuals, and hands-on “Project Building Blocks” activities you can use at any stage of your qualitative research project. Supported by a companion website containing extensive teaching and learning tools, Qualitative Research Methods: Collecting Evidence, Crafting Analysis, Communicating Impact is an indispensable resource for undergraduates, graduate students, and faculty across multiple disciplines, as well as researchers, ethnographers, and user experience professionals looking to hone their methodological practice.
Qualitative Research Methods
by Sarah J. TracyQualitative Research Methods is a comprehensive, all-inclusive resource for the theory and practice of qualitative/ethnographic research methodology.Serves as a "how-to" guide for qualitative/ethnographic research, detailing how to design a project, conduct interviews and focus groups, interpret and analyze data, and represent it in a compelling mannerDemonstrates how qualitative data can be systematically utilized to address pressing personal, organizational, and social problemsWritten in an engaging style, with in-depth examples from the author's own practiceComprehensive companion website includes sample syllabi, lesson plans, a list of helpful website links, test bank and exam review materials, and exercises and worksheets, available upon publication at www.wiley.com/go/tracy
Quality and Reliability of Telecommunications Infrastructure: Quality And Reliability Of Telecommunications Infrastructure (LEA Telecommunications Series)
by William LehrIn the last decade, the technology, regulation, and industry structure of our information infrastructure (telephone services, cable and broadcast television, and myriad new data and information services) have changed dramatically. Since the break-up of AT&T's Bell System monopoly, telephone services in the United States are no longer purchased from a single firm. Advances in fiber optics, wireless communications and software-controlled switching are changing how communication services are provided. As the global economy grows more dependent on a hybrid mix of interconnected networks, public officials in the US and abroad are relinquishing control of the market. All of these changes are affecting the quality and reliability of the telecommunications infrastructure, but informed discussions of the public policy and economic issues are scarce. Deregulation and increased competition have lowered prices, but have service quality and reliability suffered? Do advanced network technologies which make it possible to offer a dizzying array of new services increase vulnerability to system-wide failures? Who should or is likely to bear the costs of increased -- or decreased -- service quality? This volume tackles the economic and public policy issues raised by these difficult questions for an audience of industry executives, scholars, and policymakers. Leading scholars and analysts examine such issues as the effects of network ownership on incentives to invest in quality improvements and/or strategies for quality-differentiated pricing in tomorrow's broadband, integrated networks. They analyze the quality of current telecommunications networks and the impact of re-regulation on cable television quality. The contributions range from new microeconomic theory to new empirical research. As such, the volume makes a valuable contribution to the public debate on network quality and reliability. It will be useful both as an introduction to newcomers and as a resource for more experienced researchers. As regulatory, industry and national barriers to integrated communications fall, these issues are likely to become even more important. The research presented here provides a solid foundation for further discussion.
Quality Assurance in LIS Education
by Makiko Miwa Shizuko MiyaharaThis book reviews and examines the quality assurance systems of Library and Information Science (LIS) education in a variety countries and regions, including Asia, North America, Latin America and Europe Globalization of education has caused the number of LIS professionals working in every region of the world to increase greatly In order to be qualified as an LIS professional worldwide as well as in a local area, it is imperative that there exists a global standard of quality assurance systems for LIS practitioners This book provides such a standard and ranks specific systems and educational programs worldwide With contributions from leading researchers and scholars in a variety of regions across the globe, this book will prove an invaluable resource for professionals and educators of LIS education
Quality Management: Theory and Application
by Peter D. MauchIn the past, when goods and services were simpler, measurement of quality was self-evident. As business became more complicated, so too did the implementation of quality management and our ability to measure it. Ultimately, the practice of quality strayed from being a business practice to become much more of an engineering discipline producing plen
Quality of Experience and Learning in Information Systems: Incorporating Learning and Ethics into Characterizations of Quality of Experience (EAI/Springer Innovations in Communication and Computing)
by Josephina AntoniouThe book shows how researchers, practitioners, and designers can improve user experiences with technology by understanding various user learning styles and characteristics when they interact with new and challenging applications and interfaces. Quality of experience in this new technological environment is affected by the learning curve involved in being able to use the new interfaces in a satisfactory way. The author explores the variations in quality of experience when considering learning and ethics when interacting with new, emerging technologies. The author shows how results can be applied to technologies such as big data, AI, 5G, and Internet of Things (IoT). Taken into account are also safety and security requirements, context, environment, etc. The book explores the idea of learning, ethics, and the idea that there exists a “recipe” for a satisfactory interaction with technology if such relevant parameters are taken into consideration.Analyzes user habits to improve quality of experience when interacting with technology;Shows how to apply quality of service techniques to 5G, IoT, big data and AI;Uses behavior models to analyze interactions to improve the user quality of experience.
Quality of Experience Engineering for Customer Added Value Services: From Evaluation to Monitoring
by Abdelhamid Mellouk Antonio Cuadra-SanchezThe main objective of the book is to present state-of-the-art research results and experience reports in the area of quality monitoring for customer experience management, addressing topics which are currently important, such as service-aware future Internet architecture for Quality of Experience (QoE) management on multimedia applications. In recent years, multimedia applications and services have experienced a sudden growth. Today, video display is not limited to the traditional areas of movies and television on TV sets, but these applications are accessed in different environments, with different devices and under different conditions. In addition, the continuous emergence of new services, along with increasing competition, is forcing network operators and service providers to focus all their efforts on customer satisfaction, although determining the QoE is not a trivial task. This book addresses the QoE for improving customer perception when using added value services offered by service providers, from evaluation to monitoring and other management processes.
Quality of Experience for Multimedia: Application to Content Delivery Network Architecture
by Abdelhamid Mellouk Hai Anh Tran Said HoceiniBased on a convergence of network technologies, the Next Generation Network (NGN) is being deployed to carry high quality video and voice data. In fact, the convergence of network technologies has been driven by the converging needs of end-users.The perceived end-to-end quality is one of the main goals required by users that must be guaranteed by the network operators and the Internet Service Providers, through manufacturer equipment. This is referred to as the notion of Quality of Experience (QoE) and is becoming commonly used to represent user perception. The QoE is not a technical metric, but rather a concept consisting of all elements of a user's perception of the network services. The authors of this book focus on the idea of how to integrate the QoE into a control-command chain in order to construct an adaptive network system. More precisely, in the context of Content-Oriented Networks used to redesign the current Internet architecture to accommodate content-oriented applications and services, they aim to describe an end-to-end QoE model applied to a Content Distribution Network architecture. About the Authors Abdelhamid Mellouk is Full Professor at University of Paris-Est C-VdM (UPEC), Networks & Telecommunications (N&T) Department and LiSSi Laboratory, France. Head of several executive national and international positions, he was the founder of the Network Control Research activity at UPEC with extensive international academic and industrial collaborations. His general area of research is in adaptive real-time control for high-speed new generation dynamic wired/wireless networks in order to maintain acceptable Quality of Service/Experience for added-value services. He is an active member of the IEEE Communications Society and has held several offices including leadership positions in IEEE Communications Society Technical Committees.Said Hoceini is Associate Professor at University of Paris-Est C-VdM (UPEC), Networks & Telecommunications (N&T) Department and LiSSi Laboratory, France. His research focuses on routing algorithms, quality of service, quality of experience, and wireless sensor networks, as well as bio-inspired artificial intelligence approaches. His work has been published in several international conferences and journals and he serves on several TPCs.Hai Anh Tran is Associate Professor at the Hanoi University of Science and Technology (HUST), Vietnam. His research focuses on QoE aspects, QoS adaptive control/command mechanisms, wired routing, as well as bio-inspired artificial intelligence approaches.
Quality of Experience Modeling for Cloud Gaming Services (T-Labs Series in Telecommunication Services)
by Saman ZadtootaghajThis book presents the development of a gaming quality model to predict the gaming Quality of Experience (QoE) of players that could be used for planning the network service or quality monitoring of cloud gaming services. The author presents a model that is developed following a modular structure approach that keeps the different types of impairments separately. The book shows how such a modular structure allows developing a sustainable model as each component can be updated by advances in that specific research area or technology. The presented gaming quality model takes into account two modules of video quality and input quality. The latter considers the interactivity aspects of gaming. The video quality module offers a series of models that differ depending on the level of access to the video stream information, allowing high flexibility for service providers regarding the positions of measuring points within their system. In summary, the present book focuses on (1) creation of multiple image/video and cloud gaming quality datasets, (2) development of a gaming video classification, and (3) development of a series of gaming QoE models to predict the gaming QoE depending on the level of access to the video stream information.
Quality of Synthetic Speech
by Florian HinterleitnerThis book reviews research towards perceptual quality dimensions of synthetic speech, compares these findings with the state of the art, and derives a set of five universal perceptual quality dimensions for TTS signals. They are: (i) naturalness of voice, (ii) prosodic quality, (iii) fluency and intelligibility, (iv) absence of disturbances, and (v) calmness. Moreover, a test protocol for the efficient indentification of those dimensions in a listening test is introduced. Furthermore, several factors influencing these dimensions are examined. In addition, different techniques for the instrumental quality assessment of TTS signals are introduced, reviewed and tested. Finally, the requirements for the integration of an instrumental quality measure into a concatenative TTS system are examined.