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Sunday, July 12, 2015


AI algorithm learns to ‘see’ features in galaxy images

July 8, 2015
Hubble Space Telescope image of the cluster of galaxies MACS0416.1-2403, one of the Hubble “Frontier Fields” images. Bright yellow “elliptical” galaxies can be seen, surrounded by numerous blue spiral and amorphous (star-forming) galaxies. This image forms the test data that the machine learning algorithm is applied to, having not previously “seen” the image (credit: NASA/ESA/J. Geach/A. Hocking)
A team of astronomers and computer scientists at the University of Hertfordshire have taught a machine to “see” astronomical images, using data from the Hubble Space Telescope Frontier Fieldsset of images of distant clusters of galaxies that contain several different types of galaxies.
The technique, which uses a form of AI calledunsupervised machine learning, allows galaxies to be automatically classified at high speed, something previously… read more

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