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Category: Computer Engineering

our path to securing Internet Routing

This article will talk about our approach to network security using technologies like RPKI to sign Internet routes and protect our users and customers from route hijacks and misconfigurations. We are proud to announce we have started deploying active filtering by using RPKI for routing decisions and signing our routes. Back in April, articles including our blog post on BGP and route-leaks were reported in the news, highlighting how IP addresses can be redirected maliciously or by mistake. While enormous,…

Increased performance and lifetime of lithium batteries in renewable energy facilities

Credit: CC0 Public Domain In his Ph.D. thesis, Alberto Berrueta has investigated the physical mechanisms that govern the functioning of lithium batteries and their influence on a battery that functions when connected to a renewable facility. He also explored the way in which these batteries degrade, and has proposed a new management system. “The installing of renewable energy sources is becoming increasingly important across the world, and this trend is expected to continue over the coming years,” explained Alberto Berrueta-Irigoyen,…

Announcing Square Connect v2 Inventory API – Square Corner Blog – Medium

We are very pleased to announce the release of Inventory API to Connect v2. With this release, we’ve significantly upgraded functionality for the Inventory API. If you haven’t implemented the Connect v1 Inventory API, you’re coming in at the right time. If you’re a v1 user, read all about the exciting new features coming your way. We’re not the only ones excited, though — let one of our partners tell you: “Our merchants need real-time, accurate inventory data to effectively run their…

Netflix at the Spinnaker Summit 2018 – Netflix TechBlog – Medium

Author: Andy Glover Since releasing Spinnaker as an open source project in late 2015, the Spinnaker user and contributor community has grown by leaps and bounds. Our strong partnership with Google and other companies has led to a plethora of innovations and features that enable rapid, safe, and reliable delivery to AWS, GCP, Azure, Pivotal Cloud Foundry, DC/OS, Kubernetes, Titus, and Oracle Cloud. Moreover, internally at Netflix, Spinnaker continues to increase in overall scope with the incorporation of globally safe…

Expanding DNSSEC Adoption

Cloudflare first started talking about DNSSEC in 2014 and at the time, Nick Sullivan wrote: “DNSSEC is a valuable tool for improving the trust and integrity of DNS, the backbone of the modern Internet.” Over the past four years, it has become an even more critical part of securing the internet. While HTTPS has gone a long way in preventing user sessions from being hijacked and maliciously (or innocuously) redirected, not all internet traffic is HTTPS. A safer Internet should…

Looking inside the technology that powers Pinterest

By Vanja Josifovski | CTO Pinterest began as a small startup, and has grown to a company that serves +175B Pins to +250M people. While we have one of the largest datasets online, we have 600+ engineers, and so technology needs to be accessible for each person to play their part in efficiently building and scaling this visual discovery engine. Underlying all of this growth is technology built into systems that organize and serve massive amounts of data on both…

MU Engineering, Raytheon partner on first-of-its-kind program

Representatives from Mizzou Engineering, MU and Raytheon met to sign a partnership agreement Monday. The University of Missouri College of Engineering and Raytheon are teaming up to provide students with a once-in-a-lifetime opportunity to do cutting-edge research for the defense industry. The MU Raytheon National Defense Fellowship Program is seeking high-achieving sophomores and juniors for internships designed to provide world-class experience for students, who will work on critical and challenging defense and national security projects. This unique fellowship will build…

Visualizing Practical and Statistical Significance

by Martin Tingley Streaming video experimentation at Netflix seeks to optimize the Quality of Experience (QoE for short) of the videos we stream to our 130 million members around the world. To measure QoE, we look at a wide variety of metrics for each playback session, including play delay; the rates of rebuffers (playback interruptions when the video buffer empties), playback errors, and user-initiated aborts; the average bitrate throughout playback; and Video Multimethod Assessment Fusion, a measure of perceptual video…

Never-before-seen features found around a neutron star — ScienceDaily

An unusual infrared light emission from a nearby neutron star detected by NASA’s Hubble Space Telescope could indicate new features never before seen. One possibility is that there is a dusty disk surrounding the neutron star; another is that there is an energetic wind coming off the object and slamming into gas in interstellar space the neutron star is plowing through. Although neutron stars are generally studied in radio and high-energy emissions, such as X-rays, this study demonstrates that new…

Efficient tuning of online systems using Bayesian optimization – Facebook Code

The full article is available at research.fb.com.  Facebook relies on a large suite of backend systems to serve billions of people each day. Many of these systems have a large number of internal parameters. For example, machine learning systems are used for a variety of prediction tasks. These systems typically involve multiple layers of predictive models, with a large number of parameters for determining how the models are linked together to yield a final recommendation. Such parameters must be carefully tuned…