Grid and Pervasive Computing (GPC) is an annual international conference devoted to the promotion and advancement of all aspects of grid and pervasive computing. The objective of this conference is to provide a forum for researchers and engineers to present their latest research in the ?elds of grid and pervasive computing. Previous editions of the Grid and Pervasive Computing conference were held in: Kunming (China) May 25-28, 2008, Paris (France) May 2-4, 2007, and Taichung (Taiwan) May 3-5, 2006. The fourth edition took place in Geneva, Switzerland during May 4-8, 2009. It was organized by members of the University of Applied Sciences Western Switzerland (Haute Ecole de Paysage, d'Ing enierie et d'Architecture - hepia), in collaboration with colleagues from various places around the world. The conference spanned a full week, including a three-day technical program where the papers contained in these proceedings were presented. The conf- ence was followed by two tutorial days where attendants had the opportunity to discuss a variety of topics related to the ?elds covered at the conference, at both introductory and advanced levels. The technical program also included an industrial session, with contributions illustrating challenges faced and so- tions devised by industry. Furthermore, the conference o?ered an opportunity for vendors and researchers to present their products and projects at an ex- bition (Grid Village) where solutions supporting the development of grid and pervasive computing were displayed.

This book constitutes refereed articles which present research work on new and emerging topics such as distributed ledger technology, blockchains and architectures, smart cities, machine learning and deep learning techniques and application areas such as flight pricing, energy demand and healthcare. The intended readership of the book include researchers, developers and practitioners in the areas of deep learning, big data and blockchains technologies and their applications.

This books is open access under a CC BY 4.0 license. This book summarizes work being undertaken within the collaborative MODAClouds research project, which aims to facilitate interoperability between heterogeneous Cloud platforms and remove the constraints of deployment, portability, and reversibility for end users of Cloud services. Experts involved in the project provide a clear overview of the MODAClouds approach and explain how it operates in a variety of applications. While the wide spectrum of available Clouds constitutes a vibrant technical environment, many early-stage issues pose specific challenges from a software engineering perspective. MODAClouds will provide methods, a decision support system, and an open source IDE and run-time environment for the high-level design, early prototyping, semiautomatic code generation, and automatic deployment of applications on multiple Clouds. It will free developers from the need to commit to a fixed Cloud technology stack during software design and offer benefits in terms of cost savings, portability of applications and data between Clouds, reversibility (moving applications and data from Cloud to non-Cloud environments), risk management, quality assurance, and flexibility in the development process.

What's new in the European research and development area? Cloud computing is a provision model where whatever computing resource that can be thought of (machines, network, software solutions, applications) is provided as a service. This new paradigm has changed the center of gravity of computing in both the academic and industry environments, but despite the considerable efforts and investments, there are critical problems that are not yet solved. The research and development community involved in distributed computing is searching for viable solutions that will increase the adoption of the cloud. This is the case of the collaborative work done by multi-national teams in the context of the FP7 programme of the European Commission. Students, researchers and developers working in the field of distributed computing will find in this book a snapshot of the on-going activities in research and development of cloud computing undertaken at the European level. These activities are organized by the latest hot topics of cloud computing research, which include services, management, automation and adoption. Summarizing, this book will help the reader understand and identify the research and development winds that are pushing the clouds to Europe.