Sustainable Technologies for Mobile Applications
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Machine Learning in the Browser
Machine Learning in the Browser The Harvard community has made this article openly available. Please share how this access benefits you. Your story matters Citable link http://nrs.harvard.edu/urn-3:HUL.InstRepos:38811507 Terms of Use This article was downloaded from Harvard University’s DASH repository, and is made available under the terms and conditions applicable to Other Posted Material, as set forth at http:// nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of- use#LAA Machine Learning in the Browser a thesis presented by Tomas Reimers to The Department of Computer Science in partial fulfillment of the requirements for the degree of Bachelor of Arts in the subject of Computer Science Harvard University Cambridge, Massachusetts March 2017 Contents 1 Introduction 3 1.1 Background . .3 1.2 Motivation . .4 1.2.1 Privacy . .4 1.2.2 Unavailable Server . .4 1.2.3 Simple, Self-Contained Demos . .5 1.3 Challenges . .5 1.3.1 Performance . .5 1.3.2 Poor Generality . .7 1.3.3 Manual Implementation in JavaScript . .7 2 The TensorFlow Architecture 7 2.1 TensorFlow's API . .7 2.2 TensorFlow's Implementation . .9 2.3 Portability . .9 3 Compiling TensorFlow into JavaScript 10 3.1 Motivation to Compile . 10 3.2 Background on Emscripten . 10 3.2.1 Build Process . 12 3.2.2 Dependencies . 12 3.2.3 Bitness Assumptions . 13 3.2.4 Concurrency Model . 13 3.3 Experiences . 14 4 Results 15 4.1 Benchmarks . 15 4.2 Library Size . 16 4.3 WebAssembly . 17 5 Developer Experience 17 5.1 Universal Graph Runner . -
Practical API Design: Confessions Practical API Design of a Java™ Framework Architect
CYAN YELLOW MAGENTA BLACK PANTONE 123 C BOOKS FOR PROFESSIONALS BY PROFESSIONALS® THE EXPERT’S VOICE® IN JAVA™ TECHNOLOGY Companion eBook Available Practical API Design: Confessions API Design Practical of a Java™ Framework Architect Dear Reader, Maybe you’re standing in a bookstore, holding this book in your hand, and ask- ing yourself, “Should I buy it?” Here is your answer. If you’ve ever written code and handed it to others to let them compile their code against yours, then you’re ready to enter the API design world and this book will help you explore it. Practical However, this book doesn’t attempt to “teach API design in five easy lessons.” It cannot be read in “only three days!” If you’re looking for a quick handbook, this book is probably not for you. On the other hand, if you’re interested in a deeper knowledge of API design, in knowing not only the how, but also the why, let me introduce myself to you before you put this book back on the shelf. My name is Jaroslav Tulach and I am the founder and initial architect of the NetBeans™ project, which is not just a well-known IDE, but also the first modu- lar desktop application framework written in the Java™ language. This book is based on notes that I’ve collected over the last ten years, while designing and API Design maintaining NetBeans APIs and transferring this knowledge to the rest of our developers. It’s a journal from the heart of the NetBeans laboratory, describing our problems, our growing understanding of them, the solutions we’ve chosen, ™ and the conclusions we made after applying them. -
Webcl for Hardware-Accelerated Web Applications
WebCL for Hardware-Accelerated Web Applications Won Jeon, Tasneem Brutch, and Simon Gibbs What is WebCL? • WebCL is a JavaScript binding to OpenCL. • WebCL enables significant acceleration of compute-intensive web applications. • WebCL currently being standardized by Khronos. 2 tizen.org Contents • Introduction – Motivation and goals – OpenCL • WebCL – Demos – Programming WebCL – Samsung’s Prototype: implementation & performance • Standardization – Khronos WebCL Working Group – WebCL robustness and security – Standardization status • Conclusion – Summary and Resources 3 tizen.org Motivation • New mobile apps with high compute demands: – augmented reality – video processing – computational photography – 3D games 4 tizen.org Motivation… • GPU offers improved FLOPS and FLOPS/watt as compared to CPU. FLOPS/ GPU watt CPU year 5 tizen.org Motivation… • Web-centric platforms 6 tizen.org OpenCL: Overview • Features – C-based cross-platform programming interface – Kernels: subset of ISO C99 with language extensions – Run-time or build-time compilation of kernels – Well-defined numerical accuracy (IEEE 754 rounding with specified maximum error) – Rich set of built-in functions: cross, dot, sin, cos, pow, log … 7 tizen.org OpenCL: Platform Model • A host is connected to one or more OpenCL devices • OpenCL device – A collection of one or more compute units (~ cores) – A compute unit is composed of one or more processing elements (~ threads) – Processing elements execute code as SIMD or SPMD 8 tizen.org OpenCL: Execution Model • Kernel – Basic unit -
Redalyc.NEW WEB TECHNOLOGIES for ASTRONOMY
Revista Mexicana de Astronomía y Astrofísica ISSN: 0185-1101 [email protected] Instituto de Astronomía México Sprimont, P-G.; Ricci, D.; Nicastro, L. NEW WEB TECHNOLOGIES FOR ASTRONOMY Revista Mexicana de Astronomía y Astrofísica, vol. 45, 2014, pp. 75-78 Instituto de Astronomía Distrito Federal, México Available in: http://www.redalyc.org/articulo.oa?id=57132995026 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative RevMexAA (Serie de Conferencias) , 45 , 75–78 (2014) NEW WEB TECHNOLOGIES FOR ASTRONOMY P-G. Sprimont, 1 D. Ricci, 2 and L. Nicastro 1 RESUMEN Gracias a las nuevas capacidades de HTML5, y las grandes mejoras del lenguaje JavaScript es posible disen˜ar interfaces web muy complejas e interactivas. Adem´as, los servidores que eran una vez monol´ıticos y orientados a servir archivos, est´an evolucionando a aplicaciones de servidor f´acilmente programables, capaces de lidiar con interacciones complejas gracias a la nueva generaci´onde navegadores. Nosotros creemos que la comunidad de astr´onomos profesionales y aficionados entera puede beneficiarse del potencial de estas nuevas tecnolog´ıas. Nuevas interfaces web pueden ser disen˜adas para proveer al usuario con herramientas mucho m´as intuitivas e interactivas. Acceder a archivos de datos astron´omicos, controlar y monitorear observatorios y en particu- lar telescopios rob´oticos, supervisar pipelines de reducci´on de datos, son todas capacidades que pueden ser imp lementadas en una aplicaci´on web JavaScript. -
Webgl, Webcl and Beyond!
WebGL, WebCL and Beyond! Neil Trevett VP Mobile Content, NVIDIA President, Khronos Group © Copyright Khronos Group, 2011 - Page 1 Two WebGL-focused Sessions Today • Industry ecosystem and standards for 3D and compute - What is 3D anyway – jungle survival primer - Khronos and open standard acceleration APIs for native apps - The evolution of pervasive 3D on mobile platforms - WebGL and WebCL as part of HTML5 - Web apps and use cases beyond games – augmented reality • Hands-On with WebGL - Steve Baker - Intific WebGL Reference Cards at end of session! © Copyright Khronos Group, 2011 - Page 2 What is Real-time 3D Graphics? © Copyright Khronos Group, 2011 - Page 3 3D Pipeline Basics • The art of “faking” realistic looking scenes or objects using heuristic techniques learned over the years • The objects making up a scene are held in a database • Surfaces of objects are broken down into a grid of polygons • The vertices of the polygons are located in 3D coordinate space - x,y,z • Each vertex has a “material” – color and reflective properties • Vertices are positioned in 3D space – matrix math zooms and rotates y x2,y2,z2 x1,y1,z1 z x3,y3,z3 x © Copyright Khronos Group, 2011 - Page 4 3D Pipeline Basics – Pixel Shading • Project each polygon onto the screen Interpolate colors - Determine which pixels are affected between vertices • Smooth Shading Lighting - Run lighting equation at each vertex equation each - Compute vertex color depending vertex on how lights interact with surface angles and properties - Interpolate colors between the vertices -
Introduction to API Documentation Workbook July 28, 2018 Peter Gruenbaum
Introduction to API Documentation Workbook July 28, 2018 Peter Gruenbaum Table of Contents Exercise 1: Markdown............................................................................................................ 3 Exercise 2: Create a JSON file ................................................................................................. 4 Exercise 3: Document JSON files............................................................................................. 7 Exercise 4: Making REST Requests ........................................................................................ 11 Exercise 5: Documenting Method and URL ........................................................................... 16 Exercise 6: Using Query Parameters ..................................................................................... 17 Exercise 7: Documenting Query Parameters ......................................................................... 19 Discounts for Online Classes ................................................................................................ 21 Schedule for July 28, 2018 8:30 Registration and Introduction 9:00 Markdown 9:30 Data Types and JSON 10:15 Documenting JSON 11:00 Break 11:15 Structured Data for Docs 11:30 REST: Methods 12:15 Lunch 12:45 REST: URLs 1:30 REST: Query parameters 2:15 Break 2:30 Tools and Next Steps 2:45 Q&A © 2018 SDK Bridge, all rights reserved 2 Exercise 1: Markdown Follow these steps: 1. Go to https://stackedit.io/ 2. Click on Start Writing at the top 3. Delete any text that currently -
Webcl™ Kernel Validator Request for Quotations
WebCL™ Kernel Validator Request for Quotations Notice ALL KHRONOS SPECIFICATIONS AND OTHER DOCUMENTS (TOGETHER AND SEPARATELY, “MATERIALS”) ARE BEING PROVIDED “AS IS.” KHRONOS MAKES NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY OR OTHERWISE WITH RESPECT TO THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Information furnished is believed to be accurate and reliable. However, Khronos assumes no responsibility for the consequences of use of such information or for any infringement of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Khronos. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. Trademarks Khronos, WebCL and WebGL, and associated logos are trademarks or registered trademarks of Khronos Group Inc. OpenCL is a trademark of Apple Inc. and used under license by Khronos. All other product names, trademarks, and/or company names are used solely for identification and belong to their respective owners. Copyright © 2013 The Khronos Group All rights reserved. WebCL RFQ Page 1 of 9 1. Background The WebCL™ API is designed with security as a primary requirement. The Validator is a security tool to enforce compliance of WebCL™ kernels with the defined WebCL™ language restrictions, and prevent out of bounds memory accesses. The WebCL™ kernel Validator will enforce out of bounds memory protections and perform syntactic validation of WebCL™ kernels. 2. Requirements The project will deliver the design, implementation and documentation for a Validator for WebCL™ kernels. -
Webgl: the Standard, the Practice and the Opportunity Web3d Conference August 2012
WebGL: The Standard, the Practice and the Opportunity Web3D Conference August 2012 © Copyright Khronos Group 2012 | Page 1 Agenda and Speakers • 3D on the Web and the Khronos Ecosystem - Neil Trevett, NVIDIA and Khronos Group President • Hands On With WebGL - Ken Russell, Google and WebGL Working Group Chair © Copyright Khronos Group 2012 | Page 2 Khronos Connects Software to Silicon • Khronos APIs define processor acceleration capabilities - Graphics, video, audio, compute, vision and sensor processing APIs developed today define the functionality of platforms and devices tomorrow © Copyright Khronos Group 2012 | Page 3 APIs BY the Industry FOR the Industry • Khronos standards have strong industry momentum - 100s of man years invested by industry leading experts - Shipping on billions of devices and multiple operating systems • Khronos is OPEN for any company to join and participate - Standards are truly open – one company, one vote - Solid legal and Intellectual Property framework for industry cooperation - Khronos membership fees to cover expenses • Khronos APIs define core device acceleration functionality - Low-level “Foundation” functionality needed on every platform - Rigorous conformance tests for cross-vendor consistency • They are FREE - Members agree to not request royalties Silicon Software © Copyright Khronos Group 2012 | Page 4 Apple Over 100 members – any company worldwide is welcome to join Board of Promoters © Copyright Khronos Group 2012 | Page 5 API Standards Evolution WEB INTEROP, VISION MOBILE AND SENSORS DESKTOP OpenVL New API technology first evolves on high- Mobile is the new platform for Apps embrace mobility’s end platforms apps innovation. Mobile unique strengths and need Diverse platforms – mobile, TV, APIs unlock hardware and complex, interoperating APIs embedded – mean HTML5 will conserve battery life with rich sensory inputs become increasingly important e.g. -
Backup Server Archive API Company
REFERENCE MANUAL | PUBLIC SAP Adaptive Server Enterprise 16.0 SP03 Document Version: 1.0 – 2019-01-15 Reference Manual: Backup Server Archive API company. All rights reserved. All rights company. affiliate THE BEST RUN 2019 SAP SE or an SAP SE or an SAP SAP 2019 © Content 1 Overview.................................................................. 3 1.1 Syntax.....................................................................3 1.2 Byte Stream Archive Command Options.............................................4 2 Application Programming Interface..............................................5 3 API Routines............................................................... 8 3.1 syb_defineapi................................................................8 3.2 syb_queryapi................................................................9 3.3 set_params................................................................ 10 3.4 syb_open..................................................................10 3.5 syb_close..................................................................11 3.6 syb_read.................................................................. 12 3.7 syb_write..................................................................13 4 Error Messages.............................................................15 4.1 Localization................................................................ 15 4.2 Error and Informational Messages................................................ 15 5 Dynamically Loadable Library..................................................17 -
Application/Json Headers Content-Type: Application/Json
Documenting APIs with Swagger TC Camp Peter Gruenbaum Introduction } Covers } What is an API Definition? } YAML } Open API Specification } Writing Documentation } Generating Documentation } Alternatives to Swagger and the Open API Specification } Presentation and workbook at sdkbridge.com/downloads © 2018 SDK Bridge Peter Gruenbaum } PhD in Applied Physics from Stanford } Commercial Software Developer } Boeing, Microsoft, start-ups } C#, C++, Java, JavaScript, Objective-C } API Writer } Brought together writing and technology } Since 2003 } President of SDK Bridge } Teacher: Programming at middle, high school, and college © 2018 SDK Bridge API Definition } Swagger and the Open API Specification are ways to define an API } What is an API? } What can you do with an API definition? © 2018 SDK Bridge What are APIs? } Application Programming Interface } It defines how two pieces of software talk to each other } For this seminar, we are talking about Web APIs © 2018 SDK Bridge Web APIs API request API response Creative Commons Attribution 3.0. webdesignhot.com Creative Commons Attribution 3.0. Not a full web page ─ just the data! openclipart.org The API definition describes: • What requests are available • What the response looks like for each request © 2018 SDK Bridge REST } Swagger and the Open API Specification are designed for RESTful APIs } REST is a type of web API REpresentational State Transfer © 2018 SDK Bridge REST Requests and Responses Please send me the state of my feed API request API response I am transferring to you some data -
Technical Writer
Technical writer A technical writer (also called a technical communicator) is a professional writer who designs, writes, creates, maintains, and updates technical documentation. This documentation includes online help, user guides, white papers, design specifications, system manuals, and other documents. Engineers, scientists, and other professionals may also produce technical writing, usually handing their work to a professional technical writer for proofreading, editing, and formatting. A technical writer produces technical documentation for technical, business, and consumer audiences. Contents 1 Skill set 2 Qualifications 3 Methodology 4 Environment 5 Career growth 6 See also 7 References 8 External links Skill set In addition to solid research, language, and writing skills, a technical writer may have skills in: Information design Information architecture Training material development Illustration Typography Technical writing may be on any subject that requires explanation to a particular audience. A technical writer is not usually a subject matter expert (SME), but possesses and applies expertise to interview SMEs and conduct research necessary to produce accurate, comprehensive documents. Companies, governments, and other institutions typically hire technical writers not for expertise in a particular subject, but for expertise in technical writing, i.e., their ability to gather information, analyze subject and audience and produce clear documentation. A good technical writer creates documentation that is accurate, complete, unambiguous, and as concise as possible. Technical writers create documentation in many forms: printed, web-based or other electronic documentation, training materials, and industrial film scripts. Qualifications Technical writers work under many job titles, including Technical Communicator, Information Developer, Data Development Engineer, and Technical Documentation Specialist. In the United Kingdom and some other countries, a technical writer is often called a technical author or knowledge author. -
Neil Trevett Vice President Mobile Ecosystem, NVIDIA President, Khronos Group
Neil Trevett Vice President Mobile Ecosystem, NVIDIA President, Khronos Group © Copyright Khronos Group 2014 - Page 1 Khronos Connects Software to Silicon Open Consortium creating ROYALTY-FREE, OPEN STANDARD APIs for hardware acceleration Defining the roadmap for low-level silicon interfaces needed on every platform Graphics, compute, rich media, vision, sensor and camera processing Rigorous specifications AND conformance tests for cross- vendor portability Acceleration APIs BY the Industry FOR the Industry Well over a BILLION people use Khronos APIs Every Day… © Copyright Khronos Group 2014 - Page 2 Khronos Standards 3D Asset Handling - 3D authoring asset interchange - 3D asset transmission format with compression Visual Computing - 3D Graphics - Heterogeneous Parallel Computing Over 100 companies defining royalty-free APIs to connect software to silicon Acceleration in HTML5 - 3D in browser – no Plug-in - Heterogeneous computing for JavaScript Sensor Processing - Vision Acceleration - Camera Control - Sensor Fusion © Copyright Khronos Group 2014 - Page 3 3D Needs a Transmission Format! • Compression and streaming of 3D assets becoming essential - Mobile and connected devices need access to increasingly large asset databases • 3D is the last media type to define a compressed format - 3D is more complex – diverse asset types and use cases • Needs to be royalty-free - Avoid an ‘internet video codec war’ scenario • Eventually enable hardware implementations of successful codecs - High-performance and low power – but pragmatic adoption strategy