It's not your mother's C++ anymore. Manual memory management, tedious loops, difficult-to-use STL algorithms -- are all a thing of the past now. The new C++ 11 standard contains a huge number of improvements to the C++ core language and standard library, and can help C++ developers be more productive.
In this session we will discuss the major features of C++ 11, including lambda functions, type inference for local variables, range-based for loops, smart pointers, and more. We will see how to use these features effectively to modernize your existing C++ programs and how to develop in the modern C++ style.
This is a talk I gave to my Research Group about C++11/C++14.
Since many of our students know little about C++, I decided to refresh their knowledge of C++ and to teach them about the C++11 modern features.
Utah Code Camp, Spring 2016. http://utahcodecamp.com In this presentation I describe modern C++. Modern C++ assumes features introduced in the C++11/14 standard. An overview of the new features is presented and some idioms for mdoern C++ based on those features are presented.
This presentation considers certain specific features of C++11 and additions to STL library (uniform initialization, new containers and methods, move semantics).
Presentation by Taras Protsiv (Software Engineer, GlobalLogic), Kyiv, delivered at GlobalLogic C++ TechTalk in Lviv, September 18, 2014.
More details -
http://www.globallogic.com.ua/press-releases/lviv-cpp-techtalk-coverage
C++11 introduced many new features including type deduction with auto, uniform initialization syntax, rvalue references and move semantics, improved enums, lambda expressions, and smart pointers. Type deduction with auto lets the compiler deduce the type of a variable based on its initializer. Uniform initialization uses curly braces {} and allows narrowing conversions only if explicitly cast. Rvalue references and move semantics allow moving an object to avoid expensive copies by leaving the source object in a valid but unspecified state.
What's new with C++ since, oh, before the dot-com bubble? Learn more in this Lunch and Learn, with a refresher of C++ basics, C++/CLI for C# developers, and the new features of C++11/14 and possibly C++17.
Pragmatic Patterns of Ruby on Rails - Ruby Kaigi2009Yasuko Ohba
This document discusses coding patterns for developing large and complicated Ruby on Rails applications. It recommends expressing business logic in models using object-oriented principles, following DRY, CoC and RESTful principles, and writing code in models' standard flows like find, new/save, find/update, and find/destroy. Filter methods are suggested to avoid duplicating code and improve readability. Moving branching logic based on parameters and other model processing code from controllers to models improves testability and reusability. Choosing natural coding styles for Rails that follow its core principles helps keep code maintainable for other developers. Sharing such pragmatic patterns is important for developing large codebases.
The document summarizes functional programming concepts in C++14. It discusses how functional programming avoids issues with object-oriented programming like state, side effects, and value mutability. It provides examples of functional-style data structures, algorithms and libraries in C++ like lazy evaluation, immutable data structures, higher-order functions and pattern matching. Performance and concurrency are also areas that can benefit from functional programming in C++.
It's not your mother's C++ anymore. Manual memory management, tedious loops, difficult-to-use STL algorithms -- are all a thing of the past now. The new C++ 11 standard contains a huge number of improvements to the C++ core language and standard library, and can help C++ developers be more productive.
In this session we will discuss the major features of C++ 11, including lambda functions, type inference for local variables, range-based for loops, smart pointers, and more. We will see how to use these features effectively to modernize your existing C++ programs and how to develop in the modern C++ style.
This is a talk I gave to my Research Group about C++11/C++14.
Since many of our students know little about C++, I decided to refresh their knowledge of C++ and to teach them about the C++11 modern features.
Utah Code Camp, Spring 2016. http://utahcodecamp.com In this presentation I describe modern C++. Modern C++ assumes features introduced in the C++11/14 standard. An overview of the new features is presented and some idioms for mdoern C++ based on those features are presented.
This presentation considers certain specific features of C++11 and additions to STL library (uniform initialization, new containers and methods, move semantics).
Presentation by Taras Protsiv (Software Engineer, GlobalLogic), Kyiv, delivered at GlobalLogic C++ TechTalk in Lviv, September 18, 2014.
More details -
http://www.globallogic.com.ua/press-releases/lviv-cpp-techtalk-coverage
C++11 introduced many new features including type deduction with auto, uniform initialization syntax, rvalue references and move semantics, improved enums, lambda expressions, and smart pointers. Type deduction with auto lets the compiler deduce the type of a variable based on its initializer. Uniform initialization uses curly braces {} and allows narrowing conversions only if explicitly cast. Rvalue references and move semantics allow moving an object to avoid expensive copies by leaving the source object in a valid but unspecified state.
What's new with C++ since, oh, before the dot-com bubble? Learn more in this Lunch and Learn, with a refresher of C++ basics, C++/CLI for C# developers, and the new features of C++11/14 and possibly C++17.
Pragmatic Patterns of Ruby on Rails - Ruby Kaigi2009Yasuko Ohba
This document discusses coding patterns for developing large and complicated Ruby on Rails applications. It recommends expressing business logic in models using object-oriented principles, following DRY, CoC and RESTful principles, and writing code in models' standard flows like find, new/save, find/update, and find/destroy. Filter methods are suggested to avoid duplicating code and improve readability. Moving branching logic based on parameters and other model processing code from controllers to models improves testability and reusability. Choosing natural coding styles for Rails that follow its core principles helps keep code maintainable for other developers. Sharing such pragmatic patterns is important for developing large codebases.
The document summarizes functional programming concepts in C++14. It discusses how functional programming avoids issues with object-oriented programming like state, side effects, and value mutability. It provides examples of functional-style data structures, algorithms and libraries in C++ like lazy evaluation, immutable data structures, higher-order functions and pattern matching. Performance and concurrency are also areas that can benefit from functional programming in C++.
Ruby on Rails is a web application framework that follows the model-view-controller (MVC) pattern and includes everything needed to build database-backed web applications using the Ruby programming language. It aims to make web development more productive by utilizing conventions that reduce the need for configuration and promote reuse of common tasks like connecting to databases. The framework provides models for interacting with the database, views for displaying the user interface, and controllers that handle and respond to user input by manipulating models and rendering views.
The document discusses the C++ Core Guidelines and the Guideline Support Library. The Core Guidelines provide rules for writing good C++ code that avoids crashes, undefined behavior, and other issues. The Guideline Support Library (GSL) implements concepts, types and functions that support following the guidelines. Examples of guidelines include using RAII to avoid resource leaks, preferring compile-time checking over runtime checking, keeping interfaces strongly typed, and avoiding unnecessary heap allocations. Tools like CppCoreCheck and clang-tidy can check code for adherence to the guidelines.
- Ruby is an interactive, object-oriented programming language created by Yukihiro Matsumoto in 1995.
- Ruby on Rails is a web application framework built on Ruby that emphasizes convention over configuration and is optimized for programmer happiness.
- The document discusses Ruby and Ruby on Rails, providing an overview of their history, key principles like MVC, REST, and conventions used in Rails. It also provides examples of modeling data with classes and ActiveRecord in Rails.
This document provides examples of how to perform common tasks in Ruby and Ruby on Rails using less code compared to other languages like C#. It begins with an overview of Ruby's simplicity and complexity. Several examples are given that show how to create hashes, print output, build binary trees, define classes and modules, call methods, perform calculations, sort and select data, define instance behaviors, and include modules. The document concludes by providing examples of generating a basic Twitter clone app in Rails and scaling it up.
The document provides an introduction and overview of Ruby on Rails. It discusses the history and features of Ruby and compares it to other programming languages like Python and Perl. It then describes the architecture of Rails, including the Model-View-Controller pattern and ActiveRecord. The document also provides examples of migrations, validations and associations in Rails.
This document discusses error handling in Ruby and Rails. It defines what an error is, how to report errors using exceptions or return values, and how to rescue from errors using begin/rescue/ensure blocks. It also covers topics like raising exceptions, the global error object $!, re-raising exceptions, and ensuring code is always run using ensure.
The document discusses Ruby on Rails, an open-source web application framework. It is optimized for programmer happiness and productivity by favoring convention over configuration, allowing developers to write code more quickly. Ruby on Rails uses a model-view-controller (MVC) architecture and is widely adopted by companies like Twitter.
This document discusses various usability enhancements introduced in modern C++, including C++11/14/17. It covers topics such as auto type deduction, decltype, nullptr, range-based for loops, uniform initialization, lambda expressions, and more. The enhancements aim to improve code readability, reduce errors and increase developer productivity when programming in C++.
This document provides an introduction and overview of Ruby and Ruby on Rails (RoR). It discusses that Ruby is an object-oriented programming language created in 1993, and RoR is a web application framework built on Ruby. It outlines the structure of a basic RoR application, including models, views, controllers, and databases. It also provides examples of generating scaffolds and basic RoR commands.
C++11 introduced several new features for functions and lambdas including:
1. Lambda expressions that allow the definition of anonymous inline functions.
2. The std::function wrapper that allows functions and lambdas to be used interchangeably.
3. std::bind that binds arguments to function parameters for creating function objects.
These features improved support for functional programming patterns in C++.
The document introduces Ruby on Rails and provides an overview of its features and benefits. It summarizes the speaker's experience with web development over time, introduces MVC and ORM concepts, and demonstrates Rails through a live coding example. Key advantages of Rails highlighted include its convention over configuration approach, use of Ruby as a dynamic scripting language, and ability to rapidly develop database-backed web applications.
Ruby on Rails is a web application framework built on the Ruby programming language. It utilizes the MVC pattern with ActiveRecord as the ORM layer to simplify interactions with the database. Rails emphasizes conventions like implicit associations and validations to minimize configuration. Its goal is to maximize developer productivity through features like automatic SQL generation and an active community of developers.
Launching Ruby on Rails projects: A checklistRobby Russell
Summary
A collection of best practices and lessons learned for launching your next Rails application.
Details
The big product launch is approaching for your shiny new application and you’re scrambling to fix last minute bugs and work out the kinks. Deep down, you have this suspicious feeling that you’re forgetting something important. Whether it’s your first or your twentieth time that you’ve launched an application, it’s almost guaranteed that there are things that will get overlooked.
In this talk, Robby Russell, a partner and the Chief Evangelist at Planet Argon will walk the audience through his team’s Project Launch checklist, which has evolved through several years of designing, developing, and deploying web applications. Robby will share his experiences and outline a collection of best practices such as; keeping your project releasable at all times, managing staging and production environments, bootstrapping your application for SEO and analytics/conversion tracking, preparing for the unexpected, and most importantly… making sure your clients are ready for the bumpy ride.
Robby’s goal is to share from the hard lessons that his team has experienced over the years and provide you with some ideas to walk away with you. As you’ll learn, it’s never too early to start preparing an application for the big launch.
This topic will be presented by Robby Russell
25 Real Life Tips In Ruby on Rails DevelopmentBelighted
This is a collection of small tips and tricks related to developing web applications using the Ruby on Rails framework.
These tips are gathered from my personal experience of 4 years working with the framework, including more than 2 years of professional work at Belighted.
The talk was given in the Ruby on Rails Developer Room at Fosdem 2010 (www.fosdem.org).
Rising from non-existence a few short years ago, Node.js is already attracting the accolades and disdain enjoyed and endured by the Ruby and Rails community just a short time ago. It overtook Rails as the most popular Github repository in 2011 and was selected by InfoWorld for the Technology of the Year Award in 2012. This presentation explains the basic theory and programming model central to Node's approach and will help you understand the resulting benefits and challenges it presents. You can also watch this presentation at http://bit.ly/1362UGA
Ruby on Rails is a web application framework that follows the model-view-controller (MVC) pattern and includes everything needed to build database-backed web applications using the Ruby programming language. It aims to make web development more productive by utilizing conventions that reduce the need for configuration and promote reuse of common tasks like connecting to databases. The framework provides models for interacting with the database, views for displaying the user interface, and controllers that handle and respond to user input by manipulating models and rendering views.
The document discusses the C++ Core Guidelines and the Guideline Support Library. The Core Guidelines provide rules for writing good C++ code that avoids crashes, undefined behavior, and other issues. The Guideline Support Library (GSL) implements concepts, types and functions that support following the guidelines. Examples of guidelines include using RAII to avoid resource leaks, preferring compile-time checking over runtime checking, keeping interfaces strongly typed, and avoiding unnecessary heap allocations. Tools like CppCoreCheck and clang-tidy can check code for adherence to the guidelines.
- Ruby is an interactive, object-oriented programming language created by Yukihiro Matsumoto in 1995.
- Ruby on Rails is a web application framework built on Ruby that emphasizes convention over configuration and is optimized for programmer happiness.
- The document discusses Ruby and Ruby on Rails, providing an overview of their history, key principles like MVC, REST, and conventions used in Rails. It also provides examples of modeling data with classes and ActiveRecord in Rails.
This document provides examples of how to perform common tasks in Ruby and Ruby on Rails using less code compared to other languages like C#. It begins with an overview of Ruby's simplicity and complexity. Several examples are given that show how to create hashes, print output, build binary trees, define classes and modules, call methods, perform calculations, sort and select data, define instance behaviors, and include modules. The document concludes by providing examples of generating a basic Twitter clone app in Rails and scaling it up.
The document provides an introduction and overview of Ruby on Rails. It discusses the history and features of Ruby and compares it to other programming languages like Python and Perl. It then describes the architecture of Rails, including the Model-View-Controller pattern and ActiveRecord. The document also provides examples of migrations, validations and associations in Rails.
This document discusses error handling in Ruby and Rails. It defines what an error is, how to report errors using exceptions or return values, and how to rescue from errors using begin/rescue/ensure blocks. It also covers topics like raising exceptions, the global error object $!, re-raising exceptions, and ensuring code is always run using ensure.
The document discusses Ruby on Rails, an open-source web application framework. It is optimized for programmer happiness and productivity by favoring convention over configuration, allowing developers to write code more quickly. Ruby on Rails uses a model-view-controller (MVC) architecture and is widely adopted by companies like Twitter.
This document discusses various usability enhancements introduced in modern C++, including C++11/14/17. It covers topics such as auto type deduction, decltype, nullptr, range-based for loops, uniform initialization, lambda expressions, and more. The enhancements aim to improve code readability, reduce errors and increase developer productivity when programming in C++.
This document provides an introduction and overview of Ruby and Ruby on Rails (RoR). It discusses that Ruby is an object-oriented programming language created in 1993, and RoR is a web application framework built on Ruby. It outlines the structure of a basic RoR application, including models, views, controllers, and databases. It also provides examples of generating scaffolds and basic RoR commands.
C++11 introduced several new features for functions and lambdas including:
1. Lambda expressions that allow the definition of anonymous inline functions.
2. The std::function wrapper that allows functions and lambdas to be used interchangeably.
3. std::bind that binds arguments to function parameters for creating function objects.
These features improved support for functional programming patterns in C++.
The document introduces Ruby on Rails and provides an overview of its features and benefits. It summarizes the speaker's experience with web development over time, introduces MVC and ORM concepts, and demonstrates Rails through a live coding example. Key advantages of Rails highlighted include its convention over configuration approach, use of Ruby as a dynamic scripting language, and ability to rapidly develop database-backed web applications.
Ruby on Rails is a web application framework built on the Ruby programming language. It utilizes the MVC pattern with ActiveRecord as the ORM layer to simplify interactions with the database. Rails emphasizes conventions like implicit associations and validations to minimize configuration. Its goal is to maximize developer productivity through features like automatic SQL generation and an active community of developers.
Launching Ruby on Rails projects: A checklistRobby Russell
Summary
A collection of best practices and lessons learned for launching your next Rails application.
Details
The big product launch is approaching for your shiny new application and you’re scrambling to fix last minute bugs and work out the kinks. Deep down, you have this suspicious feeling that you’re forgetting something important. Whether it’s your first or your twentieth time that you’ve launched an application, it’s almost guaranteed that there are things that will get overlooked.
In this talk, Robby Russell, a partner and the Chief Evangelist at Planet Argon will walk the audience through his team’s Project Launch checklist, which has evolved through several years of designing, developing, and deploying web applications. Robby will share his experiences and outline a collection of best practices such as; keeping your project releasable at all times, managing staging and production environments, bootstrapping your application for SEO and analytics/conversion tracking, preparing for the unexpected, and most importantly… making sure your clients are ready for the bumpy ride.
Robby’s goal is to share from the hard lessons that his team has experienced over the years and provide you with some ideas to walk away with you. As you’ll learn, it’s never too early to start preparing an application for the big launch.
This topic will be presented by Robby Russell
25 Real Life Tips In Ruby on Rails DevelopmentBelighted
This is a collection of small tips and tricks related to developing web applications using the Ruby on Rails framework.
These tips are gathered from my personal experience of 4 years working with the framework, including more than 2 years of professional work at Belighted.
The talk was given in the Ruby on Rails Developer Room at Fosdem 2010 (www.fosdem.org).
Rising from non-existence a few short years ago, Node.js is already attracting the accolades and disdain enjoyed and endured by the Ruby and Rails community just a short time ago. It overtook Rails as the most popular Github repository in 2011 and was selected by InfoWorld for the Technology of the Year Award in 2012. This presentation explains the basic theory and programming model central to Node's approach and will help you understand the resulting benefits and challenges it presents. You can also watch this presentation at http://bit.ly/1362UGA
Ruby on Rails com certeza é a estrela que elevou Ruby ao patamar de linguagem praticamente obrigatória a todo programador moderno. Porém muitos esquecem que Rails não é a única forma de desenvolver aplicações Web e muitas vezes nem é a melhor opção. O Ecossistema Ruby evolui a passos largos, todos os novos frameworks Web em Ruby adotaram o padrão Rack, que facilita a interoperabilidade entre frameworks Ruby. Além disso muitos estão olhando para o mundo da alta concorrência com novas tecnologias como Node.JS, mas o mundo Ruby tem opções robustas e testadas em produção como EventMachine. Enfim, vamos tentar aumentar o leque de soluções web com Ruby, além do Rails, traçando um paralelo com a plataforma .NET.
Ruby on Rails 3.1: Let's bring the fun back into web programingBozhidar Batsov
Ruby on Rails 3.1 aims to bring fun back to web programming. The document discusses how Rails achieves high productivity, performance, and fun for programmers through conventions over configuration, active record, asset pipeline, and other features. It compares Rails favorably to PHP and Python in terms of object-oriented programming, functional programming, and programmer happiness. The document promotes Rails as the best framework for perfectionists with deadlines and highlights praise it has received from industry leaders.
This document summarizes the key points in migrating a legacy Rails 2.0 application to a newer version of Rails. It discusses upgrading to Rails 2.3 first to address compatibility issues. Then it recommends upgrading to Ruby 2.1 and Rails 4.1 to get performance improvements from the language and framework updates. Various techniques are presented for the migration process such as running the newer versions in production gradually.
Machine vision and device integration with the Ruby programming language (2008)Jan Wedekind
This document provides a summary of a research seminar on machine vision and device integration using the Ruby programming language. The seminar will be held on February 29th, 2008 and will discuss projects using a transmission electron microscope, digital camera, piezo controller and nano indenter as well as a micro camera and piezo drives. It will also discuss proprietary business models versus community development models and differences between GPLv3 and BSD licenses. An introduction to the Ruby programming language is provided including statistics on usage from the Tiobe index and speed comparisons to other languages.
This document provides an overview of the Ruby programming language and the Ruby on Rails web application framework. It discusses the origins and key aspects of Ruby like object-oriented programming. It also summarizes Ruby on Rails including its model-view-controller architecture and conventions over configuration approach. Examples of creating a Ruby on Rails project and using scaffolds to quickly generate a CRUD interface are also provided.
The document discusses migrating from a legacy Ruby on Rails application to a newer version of Rails. It provides examples of performance improvements when upgrading Ruby from 1.8.6 to 2.1.1 and Rails from 2.0 to 4.1. It also discusses strategies for migrating codebases while maintaining zero downtime deployments.
This document discusses Ruby, an object-oriented scripting language, and its integration with Java via JRuby. It provides an overview of Ruby concepts like classes, modules, and metaprogramming. It then discusses how JRuby allows embedding Ruby as a scripting language in Java applications and using Java classes from Ruby. It also covers Ruby on Rails and how JRuby can be used to deploy Rails applications on the JVM. Finally, it discusses performance improvements in JRuby 1.7 and some benefits of using JRuby.
Rails 3 provides major improvements and changes including:
- The merger of Merb and Rails is now complete making Rails less opinionated.
- Bundler is now used to manage gem dependencies locking gems to specific versions.
- Generators help create applications using conventions while providing flexibility.
- ActiveRecord inherits from ActiveModel allowing custom ORM creation.
- Railties make building plugins easier through a better API.
TorqueBox allows Ruby applications to leverage the Java Application Server and Java EE services by running Ruby code on JRuby and integrating it with the underlying Java platform. It provides services like messaging, caching, background jobs, and more to Ruby applications. TorqueBox handles the integration between Ruby frameworks/APIs and the corresponding Java APIs and services, allowing Ruby developers to build enterprise applications that scale.
This document provides an overview of key concepts in Ruby on Rails including:
- Rails uses the MVC pattern with models, views, controllers, and follows conventions like RESTful design and resource-oriented URLs.
- ActiveRecord is the ORM that connects database tables to model classes for easy data access. Migrations help manage the database schema.
- Views use ERB templates to display data and helpers to DRY up common HTML patterns. Layouts wrap views in a consistent layout.
- Controllers handle HTTP requests and route them to actions that retrieve data from models and pass it to views to display. Flashes store temporary session data.
- Rake tasks help automate common
This document discusses how to change an organization and provides examples of how the author's company changed their technical organization and processes. Some of the key points discussed include adopting agile methodologies like Scrum, emphasizing testing and use of open source tools, upgrading technologies and adopting newer versions of Ruby and Rails, and optimizing teams and processes to better support the business.
This document provides instructions for setting up a demonstration of the magic_model_generator gem. It mentions setting up the database.yml file and increasing the font size. It also provides commands for starting the postgres database, generating models from existing tables, and preparing the development environment for the demo.
This document provides an overview of Rails 3 and how to get started with it. It discusses using Ruby Version Manager (RVM) to install and manage different Ruby versions and gemsets. It then demonstrates how to generate a basic Rails 3 application, use ActiveRecord validations and queries, and references additional Rails 3 resources.
This document discusses different performance needs for development versus production environments. In development, performance is less critical and single-core usage is common, while in production, multi-core usage and optimized garbage collection are important for throughput and response times. It also summarizes the results of running Rails' test suite, showing over 16,000 tests with over 56,000 assertions passing with no failures or errors.
The code will print false, because paid = true assigns a local variable rather than setting the instance variable @paid. To fix it, use self.paid = true.
This document contains the slides from a presentation about MacRuby. It discusses key aspects of MacRuby including its use of LLVM, ahead-of-time and just-in-time compilation, integration with Cocoa and Objective-C, lack of a global interpreter lock, Grand Central Dispatch API, debugger, ability to create compiled libraries and applications, and potential uses like building App Store apps. Examples are provided of using MacRuby with features like speech synthesis, location services, and the address book.
This document appears to be a transcript from a presentation on 2D video game development using MacRuby. It discusses topics like building a game loop, handling keyboard input, playing sounds, collision detection, and game data management. Code examples are provided for setting up the game loop with a timer, playing sound effects, and storing shared game data. The document recommends libraries like Gosu and Chipmunk for graphics and physics in MacRuby games and provides a link to an example game project on GitHub.
This document summarizes a presentation given by Matt Aimonetti on Rails 3. Some key points covered include:
- Rails 3 will have an improved default stack including ActiveRecord, ERB templating, Prototype JavaScript, and Test::Unit testing.
- Developers will have more flexibility and options to customize parts of Rails like using alternative ORMs, templating engines, and JavaScript frameworks.
- While Rails 3 will not have drastic changes for end users, it aims to be less opinionated and give developers more ways to work with Rails.
- The presentation discusses alternatives to the default Rails components like DataMapper as an ORM, JavaScript options, and exploring more extreme
Macruby& Hotcocoa presentation by Rich KilmerMatt Aimonetti
The document discusses the history of Ruby on Mac OS X and Apple's goals to make Ruby a first-class language for Cocoa development. It introduces MacRuby as a solution to issues with RubyCocoa, and describes how HotCocoa builds on MacRuby to provide an idiomatic Ruby API for Cocoa. It concludes with an overview of the current state of MacRuby development.
MACRUBY: WHAT'S THE BIG DEAL?
Last year, Apple released MacRuby, an open source Ruby implementation
written on top of the Objective-C runtime. Writing native MacOSX
applications in Ruby without having to pay the cost of using a bridge
is now a reality. This is an important milestone for Ruby, Apple and
the Ruby community.
Matt Aimonetti explains the implementation, show how to build
desktop applications with MacRuby & HotCocoa, and discuss why Ruby
developers should add this new tool to their utility belt. Matt also talks about the future of MacRuby.
Merb is a flexible and modular web framework for Ruby that meets enterprise needs through low cost, adaptability, and scalability. It allows developers to pick and choose components to meet their specific needs, and its modular architecture makes it fast and lightweight. Merb provides a balance of structure and flexibility that makes it suitable for a wide range of applications.
The document discusses the Merb web framework and promotes its flexibility, performance, and modularity compared to other Ruby web frameworks like Rails. It provides examples of generating different types of Merb applications and highlights Merb's ability to be opinionated or agnostic. The document argues that Merb is fast enough for real-world web applications and that hardware costs outweigh development costs, so focusing on developer productivity is important. It also discusses upcoming Merb 2.0 features and asks if anyone has any other questions.
Best practices to write a Merb Plugin. Learn when you should use Plugins and when you should use Slices.
Presentation given by Matt Aimonetti during MerbCamp 2008
This document discusses lazy indexing in MySQL databases. It explains that without indexes, a full table scan is required to find matching records for a query, which is slow. Indexes allow the database to simply follow a B-tree data structure to quickly find matching records. The document recommends adding indexes on columns used in joins, queries, sorts, and belongs_to, has_many, has_one, or has_and_belongs_to_many associations to improve query performance. It suggests using EXPLAIN to understand how queries are executed and the query-reviewer plugin to review queries and recommend indexes.
Monitoring and Managing Anomaly Detection on OpenShift.pdfTosin Akinosho
Monitoring and Managing Anomaly Detection on OpenShift
Overview
Dive into the world of anomaly detection on edge devices with our comprehensive hands-on tutorial. This SlideShare presentation will guide you through the entire process, from data collection and model training to edge deployment and real-time monitoring. Perfect for those looking to implement robust anomaly detection systems on resource-constrained IoT/edge devices.
Key Topics Covered
1. Introduction to Anomaly Detection
- Understand the fundamentals of anomaly detection and its importance in identifying unusual behavior or failures in systems.
2. Understanding Edge (IoT)
- Learn about edge computing and IoT, and how they enable real-time data processing and decision-making at the source.
3. What is ArgoCD?
- Discover ArgoCD, a declarative, GitOps continuous delivery tool for Kubernetes, and its role in deploying applications on edge devices.
4. Deployment Using ArgoCD for Edge Devices
- Step-by-step guide on deploying anomaly detection models on edge devices using ArgoCD.
5. Introduction to Apache Kafka and S3
- Explore Apache Kafka for real-time data streaming and Amazon S3 for scalable storage solutions.
6. Viewing Kafka Messages in the Data Lake
- Learn how to view and analyze Kafka messages stored in a data lake for better insights.
7. What is Prometheus?
- Get to know Prometheus, an open-source monitoring and alerting toolkit, and its application in monitoring edge devices.
8. Monitoring Application Metrics with Prometheus
- Detailed instructions on setting up Prometheus to monitor the performance and health of your anomaly detection system.
9. What is Camel K?
- Introduction to Camel K, a lightweight integration framework built on Apache Camel, designed for Kubernetes.
10. Configuring Camel K Integrations for Data Pipelines
- Learn how to configure Camel K for seamless data pipeline integrations in your anomaly detection workflow.
11. What is a Jupyter Notebook?
- Overview of Jupyter Notebooks, an open-source web application for creating and sharing documents with live code, equations, visualizations, and narrative text.
12. Jupyter Notebooks with Code Examples
- Hands-on examples and code snippets in Jupyter Notebooks to help you implement and test anomaly detection models.
Have you ever been confused by the myriad of choices offered by AWS for hosting a website or an API?
Lambda, Elastic Beanstalk, Lightsail, Amplify, S3 (and more!) can each host websites + APIs. But which one should we choose?
Which one is cheapest? Which one is fastest? Which one will scale to meet our needs?
Join me in this session as we dive into each AWS hosting service to determine which one is best for your scenario and explain why!
Ocean lotus Threat actors project by John Sitima 2024 (1).pptxSitimaJohn
Ocean Lotus cyber threat actors represent a sophisticated, persistent, and politically motivated group that poses a significant risk to organizations and individuals in the Southeast Asian region. Their continuous evolution and adaptability underscore the need for robust cybersecurity measures and international cooperation to identify and mitigate the threats posed by such advanced persistent threat groups.
Your One-Stop Shop for Python Success: Top 10 US Python Development Providersakankshawande
Simplify your search for a reliable Python development partner! This list presents the top 10 trusted US providers offering comprehensive Python development services, ensuring your project's success from conception to completion.
In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject.
We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup.
Further emphasis will be placed on the role of AI in developing XSLT, or schemas such as XSD and Schematron. We will address the techniques and strategies adopted to create prompts for generating code, explaining code, or refactoring the code, and the results achieved.
The discussion will extend to how AI can be used to transform XML content. In particular, the focus will be on the use of AI XPath extension functions in XSLT, Schematron, Schematron Quick Fixes, or for XML content refactoring.
The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise.
By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.
Ivanti’s Patch Tuesday breakdown goes beyond patching your applications and brings you the intelligence and guidance needed to prioritize where to focus your attention first. Catch early analysis on our Ivanti blog, then join industry expert Chris Goettl for the Patch Tuesday Webinar Event. There we’ll do a deep dive into each of the bulletins and give guidance on the risks associated with the newly-identified vulnerabilities.
Cosa hanno in comune un mattoncino Lego e la backdoor XZ?Speck&Tech
ABSTRACT: A prima vista, un mattoncino Lego e la backdoor XZ potrebbero avere in comune il fatto di essere entrambi blocchi di costruzione, o dipendenze di progetti creativi e software. La realtà è che un mattoncino Lego e il caso della backdoor XZ hanno molto di più di tutto ciò in comune.
Partecipate alla presentazione per immergervi in una storia di interoperabilità, standard e formati aperti, per poi discutere del ruolo importante che i contributori hanno in una comunità open source sostenibile.
BIO: Sostenitrice del software libero e dei formati standard e aperti. È stata un membro attivo dei progetti Fedora e openSUSE e ha co-fondato l'Associazione LibreItalia dove è stata coinvolta in diversi eventi, migrazioni e formazione relativi a LibreOffice. In precedenza ha lavorato a migrazioni e corsi di formazione su LibreOffice per diverse amministrazioni pubbliche e privati. Da gennaio 2020 lavora in SUSE come Software Release Engineer per Uyuni e SUSE Manager e quando non segue la sua passione per i computer e per Geeko coltiva la sua curiosità per l'astronomia (da cui deriva il suo nickname deneb_alpha).
CAKE: Sharing Slices of Confidential Data on BlockchainClaudio Di Ciccio
Presented at the CAiSE 2024 Forum, Intelligent Information Systems, June 6th, Limassol, Cyprus.
Synopsis: Cooperative information systems typically involve various entities in a collaborative process within a distributed environment. Blockchain technology offers a mechanism for automating such processes, even when only partial trust exists among participants. The data stored on the blockchain is replicated across all nodes in the network, ensuring accessibility to all participants. While this aspect facilitates traceability, integrity, and persistence, it poses challenges for adopting public blockchains in enterprise settings due to confidentiality issues. In this paper, we present a software tool named Control Access via Key Encryption (CAKE), designed to ensure data confidentiality in scenarios involving public blockchains. After outlining its core components and functionalities, we showcase the application of CAKE in the context of a real-world cyber-security project within the logistics domain.
Paper: https://doi.org/10.1007/978-3-031-61000-4_16
TrustArc Webinar - 2024 Global Privacy SurveyTrustArc
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
Fueling AI with Great Data with Airbyte WebinarZilliz
This talk will focus on how to collect data from a variety of sources, leveraging this data for RAG and other GenAI use cases, and finally charting your course to productionalization.
HCL Notes and Domino License Cost Reduction in the World of DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-and-domino-license-cost-reduction-in-the-world-of-dlau/
The introduction of DLAU and the CCB & CCX licensing model caused quite a stir in the HCL community. As a Notes and Domino customer, you may have faced challenges with unexpected user counts and license costs. You probably have questions on how this new licensing approach works and how to benefit from it. Most importantly, you likely have budget constraints and want to save money where possible. Don’t worry, we can help with all of this!
We’ll show you how to fix common misconfigurations that cause higher-than-expected user counts, and how to identify accounts which you can deactivate to save money. There are also frequent patterns that can cause unnecessary cost, like using a person document instead of a mail-in for shared mailboxes. We’ll provide examples and solutions for those as well. And naturally we’ll explain the new licensing model.
Join HCL Ambassador Marc Thomas in this webinar with a special guest appearance from Franz Walder. It will give you the tools and know-how to stay on top of what is going on with Domino licensing. You will be able lower your cost through an optimized configuration and keep it low going forward.
These topics will be covered
- Reducing license cost by finding and fixing misconfigurations and superfluous accounts
- How do CCB and CCX licenses really work?
- Understanding the DLAU tool and how to best utilize it
- Tips for common problem areas, like team mailboxes, functional/test users, etc
- Practical examples and best practices to implement right away
Building Production Ready Search Pipelines with Spark and MilvusZilliz
Spark is the widely used ETL tool for processing, indexing and ingesting data to serving stack for search. Milvus is the production-ready open-source vector database. In this talk we will show how to use Spark to process unstructured data to extract vector representations, and push the vectors to Milvus vector database for search serving.
In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
How to Get CNIC Information System with Paksim Ga.pptxdanishmna97
Pakdata Cf is a groundbreaking system designed to streamline and facilitate access to CNIC information. This innovative platform leverages advanced technology to provide users with efficient and secure access to their CNIC details.
OpenID AuthZEN Interop Read Out - AuthorizationDavid Brossard
During Identiverse 2024 and EIC 2024, members of the OpenID AuthZEN WG got together and demoed their authorization endpoints conforming to the AuthZEN API
Taking AI to the Next Level in Manufacturing.pdfssuserfac0301
Read Taking AI to the Next Level in Manufacturing to gain insights on AI adoption in the manufacturing industry, such as:
1. How quickly AI is being implemented in manufacturing.
2. Which barriers stand in the way of AI adoption.
3. How data quality and governance form the backbone of AI.
4. Organizational processes and structures that may inhibit effective AI adoption.
6. Ideas and approaches to help build your organization's AI strategy.
49. RAILS 3
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a l
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n o t SPEED BOOST
hello world 3.02x
render 2.59x
partial 2.88x
10 partials 2.16x
collection of 10 2.44x
103% 207% 310%
Rails 3/Ruby 1.9 benchmarked against Rails 2.3.x/Ruby 1.8.7
50. Ru
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em r
er pe
j m 20
rl
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09
1.9
k e
2.78x
hello world 3.39x
2.49x
render 3.38x
1.18x
partial 4.9x
1.63x
10 partials 4x
6.27x
collection 8x
200% 400% 600% 800%
Ruby 1.8 Ruby 1.9