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Articles related to "algorithm"


Simulated Dendrochronology of US Immigration 1790-2016

  • Drawing on this phenomenon as a visual metaphor, the United States can be envisioned as a tree, with shapes and growing patterns influenced by immigration.
  • A computational algorithm deposits those cells in such a way that simulates the appearance of tree rings.
  • Tree sections, one for each state in the U.S., show the growth profile due to incoming immigration, but also due to newborns (here referred to as natural-borns).
  • Tree rings that are nearly circular indicate that population growth due to immigration was much less significant than that due to natural-born persons.
  • A cartogram of tree rings for the 50 states, showing immigration and natural-borns.
  • Tree rings for four states, showing immigration only.
  • This project was kindly supported by the College of Arts, Media, and Design at Northeastern University  (as part of the Dean’s Research Fellows 2017-2018, which included Sarah J.

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Facial recognition remains tempting but toxic for tech companies

  • Earlier this month at an event in Washington, D.C. hosted by the Brookings Institution, Microsoft president Brad Smith proposed that people should review the results of facial recognition in “high-stakes scenarios,” such as when it might restrict a person’s movements; that groups using facial recognition should comply with anti-discrimination laws regarding gender, ethnicity, and race; and that companies be “transparent” about AI’s limitations.
  • This summer, Amazon seeded Rekognition, a cloud-based image analysis technology available through its Amazon Web Services division, to law enforcement in Orlando, Florida and the Washington County, Oregon Sheriff’s Office.
  • In September, a report in The Intercept revealed that IBM worked with the New York City Police Department to develop a system that allowed officials to search for people by skin color, hair color, gender, age, and various facial features.

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The Tumblr iPhone app has returned to the App Store following a month-long ban for displaying child porn

  • The company's recent moves to purge adult content from its site have been met with stiff resistance from users, but it appears it might have worked out in the company's favor.
  • That seemed to be the end of it, as Tumblr's statement that it was collaborating NCMEC would indicate it was coming to a resolution and would be returning to the App Store after it'd bettered its detection algorithms.
  • Then, ten days ago, Tumblr revealed it was taking the nuclear option by banning any and all adult content from the site.
  • Now that the app has reappeared on the store, however, it appears this may have worked out for Tumblr, for all the complaints from its users.
  • If it remains in place, the Tumblr adult ban may not only unfairly affect niche communities, but it may always lead to false bans against other, SFW (safe-for-work) blogs.

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Tumblr's iOS app reappears shortly after adult content ban

  • The company’s recent moves to purge adult content from its site have been met with stiff resistance from users, but it appears it might have worked out in the company’s favor.
  • As this is an industry-wide problem, we work collaboratively with our industry peers and partners like NCMEC [National Center for Missing and Exploited Children] to actively monitor content uploaded to the platform.
  • Every image uploaded to Tumblr is scanned against an industry database of known child sexual abuse material, and images that are detected never reach the platform.
  • Then, ten days ago, Tumblr revealed it was taking the nuclear option by banning any and all adult content from the site.
  • Now that the app has reappeared on the store, however, it appears this may have worked out for Tumblr, for all the complaints from its users.

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Prisma's new AI-powered app, Lensa, helps the selfie camera lie

  • It bills Lensa as a “one-button Photoshop”, offering a curated suite of photo-editing features intended to enhance portrait photos — including teeth whitening; eyebrow tinting; ‘face retouch’ which smooths skin tone and texture (but claims to do so naturally); and ‘eye contrast’ which is supposed to make your eye color pop a bit more (but doesn’t seem to do too much if, like me, you’re naturally dark eyed).
  • While Lensa is free to download, an in-app subscription (costing $4.99 per month) can let you get a bit more serious about editing its AI-enhanced selfies — by unlocking the ability to adjust all those parameters across just the face; or just the background.
  • The startup says it’s drawn on its eponymous style transfer app for Lensa’s machine learning as the majority of photos snapped and processed in Prisma are selfies — giving it a relevant heap of face data to train the photo-editing algorithms.

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IonQ Has the Most Powerful Quantum Computers With 79 Trapped Ion Qubits and 160 Stored Qubits

  • IonQ just made a presentation on two new trapped ion quantum computers with 160 stored and 79 processing qubits.
  • Nextbigfuture notes that IBM and others working on quantum computers have a faster doubling rate of 7 to 16 months.
  • Rigetti Computing researchers believe their new hybrid algorithms will be very useful for making near-term quantum computers useful for machine learning.
  • We can show, in particular, that small quantum circuits provide significant performance lift over standard linear classical algorithms, reducing classification error rates from 50% to less than 0.1%, and from 4.1% to 1.4% in these two examples, respectively.
  • These transformations, which Rigetti calls quantum kitchen sinks, can be used to enhance classical machine learning algorithms.
  • D-Wave Systems could get funding to convert their 5000 qubit quantum annealing system to low error rate qubits.

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