The 8th International Conference on Software Composition, SC 2009, was held in Zu ]rich, Switzerland, during July 2-3, 2009. Over the years SC has become an important and inspiring forum for researchers, practitioners, and students working in the broad ?eld of software composition. This topic area was further exploredbybothhigh-qualitypaperpresentationsaswellastwoexcellentinvited speakers. In all, 34 submissions underwent a full review process by the Program C- mittee (PC). Only 10 were accepted for publication and presentation at the conference. The published papers were selected according to rigorous criteria covering relevance for the venue; contribution and innovation; precisionand c- rectness; and presentation and clarity. Eachpaper received between three to ?ve reviews, depending on whether authors were PC members. We endeavored to make SC 2009 a venue that encouragesand helps outstanding papers to be p- lished. This implied generating discussion when opinions expressed by the PC membersdiverge. Threepapersthatconveyedimportantinnovationsorscienti?c progress did not quite reach the quality levels we aimed for and were therefore shepherded by a PC member. We would like to thank the PC members who helped with this extra task. The successof SC 2009 wasalso due to two worldwide recognizedresearchers who presented a keynote presentation. Paul Klint from the Centrum voor W- kunde en Informatica (CWI), Amsterdam, and St ephane Ducasse, from INRIA Lille Nord Europe. Their knowledge and experience undoubtedly bene?ted the audience. SC 2009 was one of the events that were co-located with TOOLS Europe 2009."

Use the Pharo interactive development environment to significantly reduce the cost of creating interactive visualizations. This book shows how Pharo leverages visualization development against traditional frameworks and toolkits. Agile Visualization with Pharo focuses on the Roassal visualization engine and first presents the basic and necessary tools to visualize data, including an introduction to the Pharo programming language. Once you've grasped the basics, you'll learn all about the development environment offered by Roassal. The book provides numerous ready-to-use examples. You'll work on several applications, including visualizing the training phase of reinforcement learning (a powerful machine learning algorithm) and generating software visualizations from GitHub. This book covers aspects that are relevant for engineers and academics to successfully design and implement interactive visualizations. What You Will Learn Implement agile data visualization using the Pharo programming language Chart, plot, and curve using Grapher Build and draw graphs using Mondrian Implement reinforcement learning (Q-Learning, from scratch) and use visualizations to monitor learning and state exploration Use GitHub Action to generate software visualizations (UML class diagram, test coverage) at each commit Who This Book Is For Programmers with some prior exposure to data visualization and computer vision who may be new to the Pharo programming language. This book is also for those with some Pharo experience looking to apply it to data visualization.

Cover classical algorithms commonly used as artificial intelligence techniques and program agile artificial intelligence applications using Pharo. This book takes a practical approach by presenting the implementation details to illustrate the numerous concepts it explains. Along the way, you'll learn neural net fundamentals to set you up for practical examples such as the traveling salesman problem and cover genetic algorithms including a fun zoomorphic creature example. Furthermore, Practical Agile AI with Pharo finishes with a data classification application and two game applications including a Pong-like game and a Flappy Bird-like game. This book is informative and fun, giving you source code to play along with. You'll be able to take this source code and apply it to your own projects. What You Will Learn Use neurons, neural networks, learning theory, and more Work with genetic algorithms Incorporate neural network principles when working towards neuroevolution Include neural network fundamentals when building three Pharo-based applications Who This Book Is For Coders and data scientists who are experienced programmers and have at least some prior experience with AI or deep learning. They may be new to Pharo programming, but some prior experience with it would be helpful.

Crafting a visualization requires short and incremental developments, often costly both in time and effort. Agile Visualization promotes the use of the Pharo interactive development environment to significantly reduce the creation of a visualization. Pharo significantly leverages a visualization development against traditional visualization frameworks and toolkits. This book focuses on the Roassal visualization engine. Agile Visualization first presents the basic and necessary tools to visualize data. The development environment is subsequently described. The book then covers a domain-specific language framework to design and implement expressive and composable visualizations. Several applications are presented, covering epidemiological models, geographical information, network latency, and source code software analysis. Agile Visualization covers aspects that are relevant for practitioners, businesses, and academics to successfully design and implement a visualization.