High Performance Images: Beautiful Shouldn't Mean Slow

Practical Responsive Images. < picture > element, srcset attribute, picturefill, angular js. Responsive Web Design needs Responsive Images Presentation from Second Wednesday, Nottingham (Oct 2014)

網頁與圖片已密不可分 ，根據統計，圖片在網頁上的比重超過 50%，意即只要處理好圖片，就解決網頁一半以上的問題。這次的主題將要介紹如何在什麼都要 RWD、mobile-firendly 的時代，用前端的技術，去完成最佳的圖片體驗。

This document discusses using JavaScript for dynamic effects like button rollovers and form validation. It provides steps for creating a button rollover effect by changing an image source on mouseover and mouseout events. It also discusses preloading images for faster rollovers and shows examples of validating form fields with techniques like length checks and regular expressions.

The document discusses trends toward browser-based, client-side development and simpler yet more powerful products. It describes building a web-based document viewer using the Accusoft Pegasus ASP.NET Imaging SDK. The application allows searching a document library and viewing documents. Code examples show creating search and view pages, loading a document into the viewer, and JavaScript for viewer controls.

The document discusses trends toward browser-based, client-side development and simpler yet more powerful products. It describes building a web-based document viewer using the Accusoft Pegasus ASP.NET Imaging SDK. The application allows searching a document library and viewing documents. Code examples show creating search and view pages, loading a document into the viewer, and JavaScript for viewer controls.

The document summarizes Christopher Schmitt's presentation at RWD Summit 2014 on adaptive images in responsive web design. It discusses using feature testing over browser sniffing to determine screen resolution and bandwidth. It presents techniques like srcset, picture, and JavaScript solutions to serve appropriately sized images. It also covers workarounds like background-size, SVG, and font-based solutions when native techniques are not supported. The focus is on building responsive images that scale with the device and load quickly.

The document discusses the importance of website performance and provides tips to build responsive websites. It notes that users expect pages to load within 2 seconds and will leave slow sites. The tips include reducing HTTP requests, gzipping and minifying components, optimizing images, delivering JavaScript and CSS efficiently, lazy loading images, and inlining critical CSS. Following these foundations and techniques can significantly improve load times and user experience.

The web doesn't stop at the desktop anymore. Our image assets need to do more than look good in one context. In this talk, I look at how images like JPEG, GIFs, SVG, Icons, Unicode, and more can be used in a multi-device environment.

This discussion looks at different opportunities and techniques where project managers, designers, and developers can improve performance. The techniques presented range from beginner to advanced so just about anyone can walk away with something to apply to their next project. Topics cover concepts and planning, workflows, tools and services, plugin recommendations, and there are links to code examples as well.

A performance optimization presentation for WordCamp Sacramento 2016. Presented by Austin Gil. This presentation addresses issues in design, development, and project management, where performance is most greatly affected. We look at various opportunities and techniques within each stage that may offer more speed. The subjects range from beginner to advanced with tips and advice that just about anyone can walk away with, and we end with a collection of recommended tools. This presentation was designed so the slides would be useful even out of context of the presentation. Please enjoy.

This document discusses best practices for optimizing images on websites. It covers image formats like JPG, PNG and SVG and techniques such as lazy loading, responsive images using srcset, and optimizing tools. It also discusses alternatives to icon fonts like using SVG sprites. The overall message is on improving page performance by choosing the right image format and implementing optimization strategies.

This document summarizes Christopher Schmitt's presentation on adaptive images in responsive web design. The presentation covered: 1. Using the browser width, screen resolution, and bandwidth to determine the appropriate image to serve through feature testing rather than browser sniffing. 2. Techniques for serving responsive images including using .htaccess files, the <picture> element, and JavaScript libraries like HiSRC that select images based on various tests. 3. Workarounds for older browsers including using background-size: 100%, SVG images, and font-based solutions.

This document discusses adaptive images in responsive web design. It begins by explaining why the browser should be asked about screen resolution and bandwidth instead of sniffing the browser. It then demonstrates using feature testing to determine browser width and screen resolution. Next, it covers issues with higher resolution retina displays like larger file sizes. The document proposes solutions like using .htaccess files, srcset, and JavaScript libraries to serve the appropriate image based on screen details without browser sniffing. It emphasizes that CSS media queries are still important for responsive design.

This document discusses the importance of optimizing web page loading speeds and techniques to achieve optimization. It notes that every second of loading time results in 11% fewer page views, 16% lower customer satisfaction, and 7% lower conversion rates. It then provides tips for optimizing image sizes and formats, caching, minifying assets like CSS and JavaScript, prioritizing critical resources, and using tools like Pagespeed to automate optimizations. The document emphasizes testing optimizations and not taking advice without verification.

Slides from Morten Rand-Hendriksen's presentation at JavaScript Open in Vancouver, June 25th, 2015. Responsive Images are one of the missing pieces in the puzzle that makes up our new responsive web. Using the new RICG spec for srcset, sizes, and the picutre element, web designers and developers can instruct the browser to serve the visitor with the best possible image for their screen resolution and size, all the while saving bandwidth and processing power. Learn how the new spec and markup works, how and when to use srcset, sizes, and the picture element, and how to implement Responsive Images in your live production sites today. http://jsopen.lighthouselabs.ca/

The document discusses adaptive images in responsive web design. It begins by explaining why the browser should be asked for information like screen resolution and bandwidth instead of doing speed tests. It then covers different techniques for adaptive images like using the browser width, screen resolution, bandwidth tests, feature testing vs browser sniffing, and CSS media queries. It also discusses workarounds like using the .htaccess file, <picture> element, and HiSRC plugin to serve responsive images. The document advocates for newer approaches that provide a simple user experience while allowing the browser and server to communicate information.

Website speed is a crucial aspect of on page SEO everyone can control. Your goal is to be interactive in under 3 seconds, even on a basic phone over a 3G connection. However, most web sites have so many requests and large payloads this time limit or budget cannot be achieved. In fact, the average web page takes 22 seconds to load, according to Google's research. But what if I told you there is a way to offload or even avoid loading page assets until they are needed? This can give your website a distinct advantage over your competition because not only will Google like your pages better so will your visitors!

Serverless means handing off server management to the cloud platforms – along with their security risks. With the “pros” ensuring our servers are patched, what’s left for application owners to protect? As it turns out, quite a lot. This talk discusses the aspects of security serverless doesn’t solve, the problems it could make worse, and the tools and practices you can use to keep yourself safe. Required audience experience Basic knowledge of how FaaS and Serverless works Objective of the talk As many companies explore the world of serverless, it’s important they understand the aspects of security this new world helps them with, and the ones they need to care more about. This talk will provide a framework to understand how to prioritise and approach security for Serverless apps.

Guy Podjarny breaks into a vulnerable serverless application and exploits multiple weaknesses, helping better understand some of the mistakes people make, their implications, and how to avoid them. Video available on: https://www.infoq.com/presentations/serverless-security-2017

Slides from my ServerlessConf Austin 2017. Serverless means handing off server management to the cloud platforms - along with their security risks. With the “pros” ensuring our servers are patched, what’s left for application owners to protect? As it turns out, quite a lot. This talk discusses the aspects of security serverless doesn’t solve, the problems it could make worse, and the tools and practices you can use to keep yourself safe

Some of the very things that make JavaScript awesome can also leave it exposed. Guy Podjarny and Danny Grander walk through some sample security flaws unique to Node’s async nature and surrounding ecosystem (or especially relevant to it)—e.g., memory leaks via the buffer object, ReDoS and other algorithmic DoS attacks (which impact Node due to its single-threaded nature), and timing attacks leveraging the EventLoop—and show how these could occur in your own code or in npm dependencies.

npm packages are awesome, but also introduce risk. This presentation explains how packages may introduce known vulnerabilities into your application, explains their impact, and most importantly, shows how to protect yourself. The few slides were complemented by running several vulnerability exploits against the vulnerable demo app Goof from here: https://github.com/Snyk/goof

Building software today involves more assembly than actual coding. Much of our code is in fact pulled in open source packages, and the applications heavily rely on surrounding third party binaries. These third parties make us more productive - but they also introduce an enormous risk. Each third party component is a potential source of vulnerabilities or malicious code, each third party service a potential door into our system. This talk contains more information about this risk, create a framework for digesting and tackling it, and lists a myriad of tools that can help.

When users use our sites, they put their faith in us. They trust we will keep their information from reaching others, believe we provided the information they see, and allow us to run (web) code on their devices. Using HTTPS to secure our conversations is a key part of maintaining this trust. If that’s not motivation enough, the web’s giants are actively promoting HTTPS, requiring it for features such as HTTP2 & ServiceWorker, using it for search engine ranking and more. To make the most of the web, you need to use HTTPS. This deck reviews what HTTPS is, discusses why you should prioritize using it, and cover some of the easiest (and most cost effective) steps to get started using HTTPS

Slides from my Web Directions South 2014 Talk. Abstract: Responsive Web Design (RWD) is upon us, and it seems like every website has either gone responsive or planning to do so. And in this rush to implement – performance is left behind… Last November (2013), I ran a test identifying the responsive websites amongst the top 10,000 sites, and inspected their performance traits. The results were depressing, showing many sites have gone responsive, and hardly any tackled performance. In this talk, we’ll track the progress (or lack there of) we made as an industry. We’ll look at the results of a new test, tracking our progress in adopting RWD and – more importantly – in addressing its performance implications. We’ll share high level stats, highlight key trends, drill into representative examples, and come away with a better understanding of what we should be doing better, both on our own sites and as an industry

Third party components are a part of any modern site: JS libs, analytics, trackers, share buttons, ads. Many components, each adding its performance cost, cause render delays or can effectively take your site down. This isn’t your code nor your servers, so what can you do about it? This presentation will answer this question with strategies and tactics for keeping 3rd parties from taking you down. This talk was given at Velocity Santa Clara, 2014: The presentation from Velocity Santa Clara, 2014 (http://velocityconf.com/velocity2014/public/schedule/detail/35448).

This document discusses how a URL is no longer sufficient for content delivery given modern dynamic web pages. It proposes implementing "rules driven delivery" where delivery definitions are structured as reusable, hierarchical rules that define criteria for when to apply delivery behaviors. These rules would be pushed to CDN edges to enable offloading and improve performance over simply relying on URLs and caching. Examples of rules provided include redirecting mobile users, image format negotiation based on Accept headers, and granular caching based on request header values. The goal is more flexible content delivery and caching optimized for a wide variety of dynamic web page scenarios.

Awareness to Responsive Web Design has grown substantially over the last few years, and practically any major organization has some RWD project in their Mobile Strategy decks. However, are we just talking about it, or actually doing it? I ran a mass test to identify the responsive websites amongst the top 100,000 websites in the world. Eventually, we'll be able to rerun this test to track RWD adoption over time, but for now we can use it to see how RWD sites compare to each other and to non-RWD sites. This short presentation, given over beers at the awesome SmashingConf, shares some such insights. A (slightly smaller) but more detailed description of the test can be found here: www.guypo.com/mobile/roughly-1-in-8-websites-is-responsive/

Images are quickly becoming one of the most critical factors for web performance. On one hand, users are demanding more visual websites, driving an increase in the number of images on a page and making background images cool again. On the other hand, technology trends such as Retina displays and RWD are making it much harder to choose the right image to download at any given time, avoiding the download of excess bytes. In this talk, I go over what you can do to maximize the impact of every image byte. I explain the concept of Image Compression, understand how it applies to different image formats, and show the tools and techniques you should use to communicate the best visuals with the fewest bytes. Lastly, I show how to combine image compression and Retina displays, and discuss some newer image formats and how you can take advantage of them today

Almost every site on the internet today serves 3rd-party assets and code - jQuery, analytics, trackers, share buttons, ads - from both their own servers and others - cloud providers, dedicated hardware, CDNs, google hosting. These third parties can have a significant effect on performance, delaying the load event, deferring actions, and being a single point of failure beyond your control. This deck discusses techniques and strategies for working with 3rd parties within these limitations, and shares some relevant community work.

Third parties are a part of our reality, and offer great business value - but also present some very real performance concerns. This deck attempts to define and offer strategies, along with some practical tips, on how to deal with this problem.

Images seem simple - they're static, independent from each other, and don't mess up the DOM. However, images make up 60%-70% of page bytes, and their visual nature makes them critical for user experience. Investing in Image Optimization is a highly worthwhile investment. This presentation covers 4 aspects of Image Optimization: - Optimizing Image formats (including background on GIF, PNG, JPEG, WebP, JPEG XR and more) - Optimizing image delivery - Optimizing image loading in the page - Responsive Images - optimizing images for mobile screens

(A presentation given at Velocity Conference, London 2012) Mobile Optimization is complicated, and there’s no single silver bullet. Many different bottlenecks take their toll along the way, and while some have a huge impact, others still add up. In this presentation, we’ll take a website and optimize it step by step. In each step we’ll touch on a problem, discuss how to solve it – perhaps in multiple ways – and show the effect of the solution. In the process, we’ll also touch on topics such as measuring mobile performance, differences between browsers, and which pitfalls are common

We all know Mobile is different, but by how much? This presentation attempts to quantify the difference between mobile and non-mobile, focusing on CPU, network and browser differences.

(This version of the presentation is oriented at a web performance audience, and includes some mobile design 101 content) Mobile Web Design is complicated, and several design paradigms have been created to help deal with the challenges the mobile landscape creates. Amongst other implications, each paradigm also carries its own performance pitfalls, which can turn a well designed site into a horribly slow user experience. This presentation covers the top design paradigms - Dedicated Websites (mdot) and Responsive Web Design, gives some background on each, and digs into the performance do's and don'ts for your design of choice.

Choosing your mobile design paradigm is hard, and performance is an often overlooked parameter in this decision process. This presentation discusses the top performance concerns for the top mobile design paradigms - Dedicated Sites (mdot) and Responsive Web Design (RWD). Presented at Breaking Dev (bdconf) in April, 2012.

The Mobile Web is a complicated beast, making Mobile Web Performance a tough problem to tackle. Is an iPad on WiFi a part of the Mobile Web? How about a laptop with a 3G stick? This presentation tries to split the Mobile Web into three categories, to make it more manageable: Network, Software & Hardware. For each, it reviews the performance challenges this category entails, and offers possible solutions to those challenges. A recording of this presentation (with audio) is available here: http://vimeo.com/32917131

CIO Council Cal Poly Humboldt September 22, 2023

In the modern digital era, social media platforms have become integral to our daily lives. These platforms, including Facebook, Instagram, WhatsApp, and Snapchat, offer countless ways to connect, share, and communicate.

Presented at Gartner Data & Analytics, London Maty 2024. BT Group has used the Neo4j Graph Database to enable impressive digital transformation programs over the last 6 years. By re-imagining their operational support systems to adopt self-serve and data lead principles they have substantially reduced the number of applications and complexity of their operations. The result has been a substantial reduction in risk and costs while improving time to value, innovation, and process automation. Join this session to hear their story, the lessons they learned along the way and how their future innovation plans include the exploration of uses of EKG + Generative AI.

How do we build an IoT product, and make it profitable? Talk from the IoT meetup in March 2024. https://www.meetup.com/iot-sweden/events/299487375/

This presentation explores the practical application of image description techniques. Familiar guidelines will be demonstrated in practice, and descriptions will be developed “live”! If you have learned a lot about the theory of image description techniques but want to feel more confident putting them into practice, this is the presentation for you. There will be useful, actionable information for everyone, whether you are working with authors, colleagues, alone, or leveraging AI as a collaborator. Link to presentation recording and slides: https://bnctechforum.ca/sessions/details-of-description-part-ii-describing-images-in-practice/ Presented by BookNet Canada on June 25, 2024, with support from the Department of Canadian Heritage.

These fighter aircraft have uses outside of traditional combat situations. They are essential in defending India's territorial integrity, averting dangers, and delivering aid to those in need during natural calamities. Additionally, the IAF improves its interoperability and fortifies international military alliances by working together and conducting joint exercises with other air forces.

Recent advancements in the NIST-JARVIS infrastructure: JARVIS-Overview, JARVIS-DFT, AtomGPT, ALIGNN, JARVIS-Leaderboard

Quantum Communications Q&A with Gemini LLM. These are based on Shannon's Noisy channel Theorem and offers how the classical theory applies to the quantum world.

Cybersecurity is a major concern in today's connected digital world. Threats to organizations are constantly evolving and have the potential to compromise sensitive information, disrupt operations, and lead to significant financial losses. Traditional cybersecurity techniques often fall short against modern attackers. Therefore, advanced techniques for cyber security analysis and anomaly detection are essential for protecting digital assets. This blog explores these cutting-edge methods, providing a comprehensive overview of their application and importance.

Sustainability requires ingenuity and stewardship. Did you know Pigging Solutions pigging systems help you achieve your sustainable manufacturing goals AND provide rapid return on investment. How? Our systems recover over 99% of product in transfer piping. Recovering trapped product from transfer lines that would otherwise become flush-waste, means you can increase batch yields and eliminate flush waste. From raw materials to finished product, if you can pump it, we can pig it.

An invited talk given by Mark Billinghurst on Research Directions for Cross Reality Interfaces. This was given on July 2nd 2024 as part of the 2024 Summer School on Cross Reality in Hagenberg, Austria (July 1st - 7th)

To help you choose the best DiskWarrior alternative, we've compiled a comparison table summarizing the features, pros, cons, and pricing of six alternatives.

Widya Salim and Victor Ma will outline the causal impact analysis, framework, and key learnings used to quantify the impact of reducing Twitter's network latency.

Is your patent a vanity piece of paper for your office wall? Or is it a reliable, defendable, assertable, property right? The difference is often quality. Is your patent simply a transactional cost and a large pile of legal bills for your startup? Or is it a leverageable asset worthy of attracting precious investment dollars, worth its cost in multiples of valuation? The difference is often quality. Is your patent application only good enough to get through the examination process? Or has it been crafted to stand the tests of time and varied audiences if you later need to assert that document against an infringer, find yourself litigating with it in an Article 3 Court at the hands of a judge and jury, God forbid, end up having to defend its validity at the PTAB, or even needing to use it to block pirated imports at the International Trade Commission? The difference is often quality. Quality will be our focus for a good chunk of the remainder of this season. What goes into a quality patent, and where possible, how do you get it without breaking the bank? ** Episode Overview ** In this first episode of our quality series, Kristen Hansen and the panel discuss: ⦿ What do we mean when we say patent quality? ⦿ Why is patent quality important? ⦿ How to balance quality and budget ⦿ The importance of searching, continuations, and draftsperson domain expertise ⦿ Very practical tips, tricks, examples, and Kristen’s Musts for drafting quality applications https://www.aurorapatents.com/patently-strategic-podcast.html

Invited Remote Lecture to SC21 The International Conference for High Performance Computing, Networking, Storage, and Analysis St. Louis, Missouri November 18, 2021

Our Linux Web Hosting plans offer unbeatable performance, security, and scalability, ensuring your website runs smoothly and efficiently. Visit- https://onliveserver.com/linux-web-hosting/

The presentation showcases the diverse real-world applications of Fused Deposition Modeling (FDM) across multiple industries: 1. **Manufacturing**: FDM is utilized in manufacturing for rapid prototyping, creating custom tools and fixtures, and producing functional end-use parts. Companies leverage its cost-effectiveness and flexibility to streamline production processes. 2. **Medical**: In the medical field, FDM is used to create patient-specific anatomical models, surgical guides, and prosthetics. Its ability to produce precise and biocompatible parts supports advancements in personalized healthcare solutions. 3. **Education**: FDM plays a crucial role in education by enabling students to learn about design and engineering through hands-on 3D printing projects. It promotes innovation and practical skill development in STEM disciplines. 4. **Science**: Researchers use FDM to prototype equipment for scientific experiments, build custom laboratory tools, and create models for visualization and testing purposes. It facilitates rapid iteration and customization in scientific endeavors. 5. **Automotive**: Automotive manufacturers employ FDM for prototyping vehicle components, tooling for assembly lines, and customized parts. It speeds up the design validation process and enhances efficiency in automotive engineering. 6. **Consumer Electronics**: FDM is utilized in consumer electronics for designing and prototyping product enclosures, casings, and internal components. It enables rapid iteration and customization to meet evolving consumer demands. 7. **Robotics**: Robotics engineers leverage FDM to prototype robot parts, create lightweight and durable components, and customize robot designs for specific applications. It supports innovation and optimization in robotic systems. 8. **Aerospace**: In aerospace, FDM is used to manufacture lightweight parts, complex geometries, and prototypes of aircraft components. It contributes to cost reduction, faster production cycles, and weight savings in aerospace engineering. 9. **Architecture**: Architects utilize FDM for creating detailed architectural models, prototypes of building components, and intricate designs. It aids in visualizing concepts, testing structural integrity, and communicating design ideas effectively. Each industry example demonstrates how FDM enhances innovation, accelerates product development, and addresses specific challenges through advanced manufacturing capabilities.

Blockchain technology is transforming industries and reshaping the way we conduct business, manage data, and secure transactions. Whether you're new to blockchain or looking to deepen your knowledge, our guidebook, "Blockchain for Dummies", is your ultimate resource.

Six months into 2024, and it is clear the privacy ecosystem takes no days off!! Regulators continue to implement and enforce new regulations, businesses strive to meet requirements, and technology advances like AI have privacy professionals scratching their heads about managing risk. What can we learn about the first six months of data privacy trends and events in 2024? How should this inform your privacy program management for the rest of the year? Join TrustArc, Goodwin, and Snyk privacy experts as they discuss the changes we’ve seen in the first half of 2024 and gain insight into the concrete, actionable steps you can take to up-level your privacy program in the second half of the year. This webinar will review: - Key changes to privacy regulations in 2024 - Key themes in privacy and data governance in 2024 - How to maximize your privacy program in the second half of 2024

Solar Storms (Geo Magnetic Storms) are the motion of accelerated charged particles in the solar environment with high velocities due to the coronal mass ejection (CME).