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Category: Computer Engineering

Virtual reality goes magnetic

The success of Pokémon GO made many people familiar with the concept of ‘augmented reality’: computer-generated perception blends into the real and virtual worlds. So far, these apps largely used optical methods for motion detection. Physicists have now developed an ultrathin electronic magnetic sensor that can be worn on skin. Just by interacting with magnetic fields, the device enables a touchless manipulation of virtual and physical objects. Source link…

Exploring effective user signals – Pinterest Engineering – Medium

Sophia Feng | Software Engineer, Growth As a visual discovery tool, one of our key areas of focus is providing users with relevant recommendations at the right time. This means delivering personalized ideas regardless of interest or location for each of our 200M monthly active Pinners, and using signals to make their experience even better. For example, if a Pinner follows the topic “cookies,” it’s likely they’re interested in baking, and so we can make recommendations for other things to…

Web Cache Deception Attack revisited

In April, we wrote about Web Cache Deception attacks, and how our customers can avoid them using origin configuration. Read that blog post to learn about how to configure your website, and for those who are not able to do that, how to disable caching for certain URIs to prevent this type of attacks. Since our previous blog post, we have looked for but have not seen any large scale attacks like this in the wild. Today, we have released…

Building Uber Eats on Android

January 2018 marks the two-year anniversary of the Uber Eats app on Android. With this in mind, software engineer Hilary Karls reflects on her team’s experience launching this app in 2016 and discusses how their commitment to “building a codebase you can live in” resulted in one of Uber’s most successful products. Shipping an app probably is not the first thing that comes to mind when you think of sports. When you boil it down, however, a successful launch is…

Enabling Dual Stack on LinkedIn CDNs

Co-authors: Erin Atkinson and Bhaskar Bhowmik   A few months ago, LinkedIn surpassed the 50% IPv6 traffic milestone. In this post, we will look into the methodology we adopted to measure performance as we enabled IPv6 on our content delivery networks (CDNs), and share some key results of our performance analysis. We hope this information will help readers who are undertaking similar networking changes. Background A CDN is a system of distributed servers that delivers web content to users from…

Movavi Video Editor for Mac: What You Need to Know

Video editing is important for numerous reasons. It can help you to compile video footage into a longer video, fix any issues, and improve it in other ways as well. To do all of that, of course, you’ll need a video editor – and Movavi Video Editor for Mac is just that. What makes Movavi Video Editor for Mac unique is that it is an extremely intuitive movie maker for Mac. Unlike other video editors that often require substantial experience…

SYN Packet processing

In this article: Marek Majkowski https://blog.cloudflare.com/syn-packet-handling -in-the-wild / . Our Cloudflare has a lot of experience working with real servers on the Internet. However, I do not neglect to master this black magic. understanding FIN-WAIT-2 or receive buffer tuning . This blog has covered many dark areas of the Internet Protocol: by Source link…

Challenges and research for an evolving aviation system

A comprehensive aviation safety system as envisioned by NASA would require integration of a wide range of systems and practices, including building an in-time aviation safety management system (IASMS) that could detect and mitigate high-priority safety issues as they emerge and before they become hazards, says a new report by the National Academies of Sciences, Engineering, and Medicine. An IASMS could continuously monitor the national airspace system, assess the data that it has collected, and then either recommend or initiate…

Deprecating SPDY

Democratizing the Internet and making new features available to all Cloudflare customers is a core part of what we do. We’re proud to be early adopters and have a long record of adopting new standards early, such as HTTP/2, as well as features that are experimental or not yet final, like TLS 1.3 and SPDY. Participating in the Internet democracy occasionally means that ideas and technologies that were once popular or ubiquitous on the net lose their utility as newer…

The story of a processor bug

Processor problems have been in the news lately, due to the Meltdown and Spectre vulnerabilities. But generally, engineers writing software assume that computer hardware operates in a reliable, well-understood fashion, and that any problems lie on the software side of the software-hardware divide. Modern processor chips routinely execute many billions of instructions in a second, so any erratic behaviour must be very hard to trigger, or it would quickly become obvious. But sometimes that assumption of reliable processor hardware doesn’t…