Facebook’s new AI research is a real eye-opener | TechCrunch
Research from Facebook (to appear in CVPR 2018) replaces closed eyes with open ones in a remarkably convincing manner. It does so with a Generative Adversarial Network, where one part of the system learns to recognize, say, faces, and another part of the system repeatedly creates images that, based on feedback from the recognition part, gradually grow in realism. What Facebook’s researchers did was to include “exemplar” data showing the target person with their eyes open, from which the GAN learns not just what eyes should go on the person, but how the eyes of this particular person are shaped, colored, and so on. The results are quite realistic: there’s no color mismatch or obvious stitching because the recognition part of the network knows that that’s not how the person looks.
Original article | Research paper
Ghost cytometry | Science
In fluorescence-activated cell sorting, characteristic target features are labeled with a specific fluorophore, and cells displaying different fluorophores are sorted. Scientists describe a technique called ghost cytometry that allows cell sorting based on the morphology of the cytoplasm, labeled with a single-color fluorophore. The motion of cells relative to a patterned optical structure provides spatial information that is compressed into temporal signals, which are sequentially measured by a single-pixel detector. Images can be reconstructed from this spatial and temporal information, but this is computationally costly. Instead, using machine learning, cells are classified directly from the compressed signals, without reconstructing an image. The method was able to separate morphologically similar cell types in an ultrahigh-speed fluorescence imaging-activated cell sorter.
FiveThirtyEight’s projections for World Cup 2018 Group G and Group H | FiveThirtyEight
In Group G, FiveThirtyEight predicts that Belgium has a 87% chance of reaching the round of 16; England 85%; Tunisia 16%; and Panama 12%. In Group H, Columbia projects to a 69% chance of reaching the round of 16; Poland 55%; Japan 43%; and Senegal 34%.
Group G analysis | Group H analysis