The document discusses a distributed deep Q-learning algorithm developed to enhance reinforcement learning efficiency by utilizing neural networks for high-dimensional sensory inputs. It outlines serial and distributed algorithms, highlights the importance of experience replay for stability, and presents numerical experiments demonstrating the method's effectiveness. The implementation enables significant scaling through data parallelism, resulting in faster training and improved performance in various gaming environments.
The document discusses the current state and future potential of artificial intelligence (AI) in business, separating hype from reality. It emphasizes that AI will change job roles rather than eliminate them, and suggests five practical steps businesses can take to integrate AI in a meaningful way. Key points include starting with specific business problems, fostering empathy in the workforce, and ensuring a clear understanding of AI capabilities.
Machine Learning Methods for Parameter Acquisition in a Human ...butest
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The document discusses using machine learning approaches to automate the acquisition of parameters and network structures for computational models of human decision making. It aims to semi-automate the process of building and tuning cognitive models to reduce costs and speed up development. Parameter acquisition and network topology induction are challenging problems that require novel machine learning algorithms to infer the internal representations and decision processes of human operators under cognitive plausibility constraints. Direct elicitation of information from users may be the most promising approach.
MALT: Distributed Data-Parallelism for Existing ML Applications (Distributed ...asimkadav
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The document discusses MALT, a machine learning toolset that enables efficient data-parallel training of existing machine learning applications across distributed systems. It highlights the challenges of model training, such as the large data sizes and the need for real-time model updates, and provides a peer-to-peer communication approach for model updates without a central server. MALT integrates with C++ and Lua applications, demonstrating improved speed and fault tolerance in model training through advanced communication techniques.
This document discusses an asynchronous parameter server called Glint for Spark. It was created to address the problem of machine learning models exceeding the memory of a single machine. Glint distributes models over multiple machines and allows two operations - pulling and pushing model parameters. It was tested on topic modeling of a 27TB dataset using 1,000 topics, significantly outperforming MLLib in terms of quality, runtime, and scalability. Future work may include improved fault tolerance, custom aggregation functions, and implementing additional algorithms like deep learning.
Tofu is an image processing system developed by COOKPAD that generates thumbnail images on demand from original images stored in S3. Previously, COOKPAD would generate all thumbnail sizes upfront, using significant storage. Tofu addresses this by using a Apache module called mod_tofu that generates thumbnails from original images only when requested. This on-demand approach is faster, more scalable, and saves storage by not pre-generating all sizes. Tofu leverages the scalability of AWS to process large volumes of image resizing with high performance.
This document introduces two important Japanese Rubyists, Yugui and Itojun. Yugui was the release manager for Ruby 1.9 and wrote a Japanese edition book on learning Ruby. Itojun contributed the IPv6 protocol stack for Ruby and helped with the early development and release of Ruby by providing mailing lists and FTP access to Matz. Unfortunately, Itojun passed away in 2007 but his contributions to Ruby and as a free software evangelist in Japan remain important. The document concludes that while some Rubyists may not be met in person, their work can still be experienced through projects like Ruby and that the open nature of free software allows developers and communities to form around the world.
The document discusses how to contribute code to the Ruby programming language. It provides instructions for obtaining the Ruby source code, running tests on the Ruby codebase, and submitting patches to the Ruby bug tracking system. The tests include language tests, framework tests, and extension tests. The goal is to help developers get started testing and contributing to the Ruby core.
The document discusses various types of vehicle transmission systems, including conventional automatic, dual-clutch, and continuously variable transmissions (CVT). CVTs are highlighted for their efficiency due to the use of belts for smooth transitions, resulting in up to 10% better fuel economy compared to other transmission types. Overall, the document emphasizes the performance and operational advantages of modern transmission technologies.
ベイズ最適化によるハイパーパラメータ探索についてざっくりと解説しました。
今回紹介する内容の元となった論文
Bergstra, James, et al. "Algorithms for hyper-parameter optimization." 25th annual conference on neural information processing systems (NIPS 2011). Vol. 24. Neural Information Processing Systems Foundation, 2011.
https://hal.inria.fr/hal-00642998/
Journal club dec24 2015 splice site prediction using artificial neural netw...Hiroya Morimoto
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Brief introduction to artificial neural networks and the application to bioinformatics fields. And show how to utilize neural networks to predict splice sites in genome/gene sequences.
The document discusses making Ruby differentiable by introducing automatic differentiation capabilities. It presents a differentiation gem that allows making Ruby methods, procs, numbers and matrices differentiable. This allows defining and computing gradients of functions. It demonstrates this on a multilayer perceptron neural network model solving XOR. The goal is to make Ruby differentiable in order to apply automatic differentiation to Ruby programs.
This document summarizes lessons learned from failures in backporting bug fixes to Ruby stable branches:
- Don't backport performance improvements or fixes for imaginary use cases as they can introduce regressions.
- Be careful backporting fixes related to parsing, constants/method search, and refinements as they are complex and prone to causing new bugs.
- Some long-standing bugs may not need fixing if no real applications are affected. It's better to avoid regressions.
- Consider an application's needs before backporting - don't backport fixes if no one requested or needs them. Be practical.
This document discusses functional programming and audio programming. It introduces LazyK, a purely functional and stream-based programming language based on SKI combinator calculus. It also introduces RazyK, a LazyK interpreter implemented in Ruby that allows stepping through reduction steps and includes a browser interface and audio stream mode to evaluate LazyK programs that generate music.
BigQuery case study in Groovenauts & Dive into the DataflowJavaSDKnagachika t
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This document summarizes a presentation about using BigQuery and the Dataflow Java SDK. It discusses how Groovenauts uses BigQuery to analyze data from their MAGELLAN container hosting service, including resource monitoring, developer activity logs, application logs, and end-user access logs. It then provides an overview of the Dataflow Java SDK, including the key concepts of PCollections, coders, PTransforms, composite transforms, ParDo and DoFn, and windowing.
The document outlines the capabilities of Tomoyuki Chikanaga's Groovenauts, Inc. regarding their mobile application platform and various functionalities associated with Google Cloud services. It highlights features like high availability, quick deployment, and interoperability through the use of Google Compute Engine, BigQuery, and other tools. Additionally, it emphasizes the cost performance and scalable querying of BigQuery for resource usage and activity analysis.
This document summarizes recent trends in CRuby development and introduces some of the key committers to the CRuby project in 2013. It notes that development speed has increased, with over 12 commits per day on average. It profiles several top committers like matz, nobu, ko1, akr, usa, naruse, kosaki, nari, shugo, svn, and nagachika, highlighting their main contributions and an example commit. The document promotes external resources like ruby-trunk-changes for tracking CRuby changes.
The document provides an overview of key contributors to the cruby project in 2014, listing active committers, their roles, and notable speakers at the conference. It highlights the contributions of various individuals, including the creator of Ruby, Yukihiro Matsumoto, and other committers from notable companies. Additionally, it mentions new projects and updates related to the Ruby programming language and its features.
The document provides statistics about commits to the CRuby repository over time. It breaks down commit categories by percentage, finding that 22% were for bug fixes, 20% for refactoring, 11% for enhancements, 11% for tests, 10% for documentation, 8% for the build process, 8% for Windows support, 3% introduced new bugs, 3% fixed typos, 10% updated version.h, and 6% were trivial. It concludes by reviewing top commit categories and a degrader ranking.
The document describes Pure Data's object-oriented programming model, where all elements like boxes, objects, classes and inlets/outlets are represented as objects, with classes defining common behaviors and properties of objects, and objects being instances of classes that can receive and send messages through inlets and outlets. Key elements include the class struct that defines methods like initialization and message handling, the t_object base class, and fundamental data types like symbols, atoms, and inlet/outlet objects that allow communication between objects.