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Author: engineering

Orga: Innovative OCR App to Securely Scan Text, Objects & Nudity in Photos

Orga is an innovative and feature-rich optical character recognition (OCR) app, which we recently stumbled upon and were mesmerized by its functionality. It gave a new definition to searching and organizing photos in phone and is the smartest photo vault we’ve come across. Orga is an Optical Recognition app that gives you the flexibility of searching text in photos and objects also lets you organize them in an encrypted photo vault. Optical Character Recognition Features Leveraging the feature of Apple’s…

How switching our domain structure unlocked international growth

Christian Miranda | Software Engineer, Growth More than half of the 200 million monthly active users on Pinterest use our app outside the U.S. As we continue to make Pinterest even better for our global users, we moved our traffic to country code top-level domains (ccTLDs). An example of this is serving the website on www.pinterest.de in Germany instead of www.pinterest.com. Here we’ll deep dive into the specifics of how this change can help improve growth and discuss some of…

Columbia Engineers are the first to miniaturize dual-frequency combs by putting two frequency comb generators on a single millimeter-sized silicon-based chip; could lead to low-cost, portable sensing, and spectroscopy in the field in real-time — ScienceDaily

In a new paper published today in Science Advances, researchers under the direction of Columbia Engineering Professors Michal Lipson and Alexander Gaeta (Applied Physics and Applied Mathematics) have miniaturized dual-frequency combs by putting two frequency comb generators on a single millimeter-sized chip. “This is the first time a dual comb has been generated on a single chip using a single laser,” says Lipson, Higgins Professor of Electrical Engineering. A frequency comb is a special kind of light beam with many…

Introducing Coördinator: A new open source project made at Spotify to inject some whimsy into data visualizations

Coördinator is an open source browser interface to help you turn an SVG into XY coordinates. That means you can now take any SVG file, turn it into dots, and use those dots in a data visualization. Already have some ideas for why this could be supremely useful? Visit our hosted version, or run it locally. Curious about why such a tool exists? Very fair. Read on. Why might I want to turn an SVG into XY coordinates? I created…

Understanding Composition Browser Events – Square Corner Blog – Medium

Okay, great! Now we know how an IME works. So what was the bug? Notice how there was a lot of keyboard input happening for interacting with the IME — we can use the arrow keys, spacebar, enter, and more. At first, I naively believed that, since the IME is an OS program, any typing or editing would exist outside the browser, and thus the browser would be oblivious to the fact that I’m using an IME. But this isn’t the case!…

A power boost for mobile technologies

Imagine you are shopping on your iPad for a new merino wool sweater for the winter, and when you visit a retail site, you can not only see countless views of your prospective purchase but you can reach out and feel the texture of the fabric. Or more consequentially: you are a physician performing an operation remotely using a telemedicine application, and you can virtually feel the patient upon whom you are operating. In the endless quest to create the…

Omega fish oils don’t improve school children’s reading skills or memory, study finds — ScienceDaily

New research has found no evidence Omega-3 fish oil supplements help aid or improve the reading ability or memory function of underperforming schoolchildren. These findings are in contradiction to an earlier study run by the same team using the same supplement. In the second high-quality trial of its kind, published in PLOS ONE, the researchers found an entirely different result to an earlier study carried out in 2012, where omega-3 supplements were found to have a beneficial effect on the…

Queryparser, an Open Source Tool for Parsing and Analyzing SQL

In early 2015, Uber Engineering migrated its business entities from integer identifiers to UUID identifiers as part of an initiative towards using multiple active data centers. To achieve this, our Data Warehouse team was tasked with identifying every foreign-key relationship between every table in the data warehouse to backfill all the ID columns with corresponding UUIDs.¹ Given the decentralized ownership of our tables, this was not a simple endeavor. The most promising solution was to crowdsource the information by scraping…

Air Traffic Controller: Member-First Notifications at LinkedIn

Steps a notification goes through in ATC   Request decorationOne of the first steps in the ATC process is getting the metadata needed to make a notification decision. This metadata may include the member’s historical notification profile, the devices they have the LinkedIn app installed on, and their notification settings. ATC gets this information from multiple local stores (RocksDB) and from external services. ATC will also log the current notification request to help continue to build the member’s historical notification…

Why the web has challenged scientists’ authority – and why they need to adapt

And distrustful segments of society fear what academia does; one survey found that 58 percent of Republicans and Republican-leaning independents say colleges and universities have a negative effect on the way things are going in the country. There are multiple causes for this existential crisis, but one in particular deserves special attention. The web is fundamentally changing the channels through which science is communicated – who can create it, who can access it and ultimately what it is. Society…