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Category: Civil Engineering

Building Enterprise Software on LinkedIn’s Consumer Stack: Behind the Scenes of LinkedIn Talent Hub

Figure 2: Rules engine architecture External services integrationOne of the core capabilities of the Talent Hub is its ability to work with other systems like HRIS, background check providers, interview schedulers, and assessment service providers, etc. LinkedIn has a platform called GaaP (Gateway as a Platform) which is on a mission to turn the entire internet into one big Restful framework. With a Groovy-based scripting framework, GaaP allows developers to create a Rest-endpoint for external APIs and write it in…

Saudi Arabia opens high-speed railway to public

Passengers walk on the platform at Mecca train station on October 11, 2018 as Saudi Arabia’s new high-speed railway opens Saudi Arabia’s new high-speed railway opened to the public on Thursday, whisking Muslim pilgrims and other travellers between Mecca and Medina, Islam’s holiest cities. The Haramain High Speed Rail system will transport passengers 450 kilometres (280 miles) via the Red Sea port of Jeddah at speeds of up to 300 kilometres per hour. Two trains, each carrying 417 passengers,…

Dropbox traffic infrastructure: Edge network

In this post we will describe the Edge network part of Dropbox traffic infrastructure. This is an extended transcript of our NginxConf 2018 presentation. Around the same time last year we described low-level aspects of our infra in the Optimizing web servers for high throughput and low latency post. This time we’ll cover higher-level things like our points of presence around the world, GSLB, RUM DNS, L4 loadbalancers, nginx setup and its dynamic configuration, and a bit of gRPC proxying.…

Building Representative Talent Search at LinkedIn

Figure 1: A screenshot from the LinkedIn Recruiter product, some details redacted  Our focus as part of representative results is on the set of potential candidates (as well as their relative ordering) shown to a recruiter corresponding to a given search query. In this way, Recruiter will still return the same set of qualified candidates in response to any particular search; no one is added or removed. Recruiter ranking already varies depending on a number of factors, including candidates’ interest…

A Tour Inside Cloudflare’s G9 Servers

Cloudflare operates at a significant scale, handling nearly 10% of the Internet HTTP requests that is at peak more than 25 trillion requests through our network every month. To ensure this is as efficient as possible, we own and operate all the equipment in our 154 locations around the world in order to process the volume of traffic that flows through our network. We spend a significant amount of time specing and designing servers that makes up our network to…

Using machine learning to index text from billions of images

In our previous blog posts, we talked about how we updated the Dropbox search engine to add intelligence into our users’ workflow, and how we built our optical character recognition (OCR) pipeline. One of the most impactful benefits that users will see from these changes is that users on Dropbox Professional and Dropbox Business Advanced and Enterprise plans can search for English text within images and PDFs using a system we’re describing as automatic image text recognition. The potential benefit…

Larger cities have smaller water footprint than less populated counterparts — ScienceDaily

Global sustainability is important now more than ever due to increasing urban populations and the resulting stress it can have on natural resources. But increased populations in cities may lead to greater efficiency, as a team of Penn State researchers discovered when they analyzed the water footprint of 65 mid- to large-sized U.S. cities. “Human life on the planet has never been more complex,” said Caitlin Grady, assistant professor of civil engineering. “We’re so intertwined with so many aspects of…

A new brain-inspired architecture could improve how computers handle data and advance AI — ScienceDaily

IBM researchers are developing a new computer architecture, better equipped to handle increased data loads from artificial intelligence. Their designs draw on concepts from the human brain and significantly outperform conventional computers in comparative studies. They report on their recent findings in the Journal of Applied Physics, from AIP Publishing. Today’s computers are built on the von Neumann architecture, developed in the 1940s. Von Neumann computing systems feature a central processer that executes logic and arithmetic, a memory unit, storage,…

Scientists develop smart technology for synchronized 3-D printing of concrete

(3rd from left) NTU Asst Prof Pham Quang Cuong with his multidisciplinary team of researchers consisting of roboticists, civil engineers, mechanical engineers and material scientists, with the 3D concrete structure printed by the two robots concurrently in a single print. Credit: NTU Singapore Scientists from Nanyang Technological University, Singapore (NTU Singapore) have developed a technology whereby two robots can work in unison to 3-D-print a concrete structure. This method of concurrent 3-D printing, known as swarm printing, paves the way…

Construction using concrete reinforced with renewable materials

Plain-woven flax fabric. Credit: Jana Winkelmann Tomorrow’s building material is here today. Textile-reinforced concrete (TRC) is durable, formable in diverse shapes and suitable for lightweight construction. As the name suggests, conventional TRC is reinforced with carbon or glass-fiber fabrics rather than steel. A research team at the Fraunhofer Institute for Wood Research, Wilhelm-Klauditz-Institut WKI is now replacing these fabrics with eco-friendly natural fibers. These alternatives rival conventional concrete’s performance, but leave a smaller carbon footprint, and cost less to make.…