It's a Treehugger's dream come true. Leafsnap is a free app that identifies plant species of all kinds, from flowers and bark to fruit and trees. Go for a walk, take a shot of a leaf, and this little ...

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Richard Socher has been a major figure in AI for some time, best known for founding the early chatbot startup You.com and, before that, his work on ImageNet. Now he’s joining the current generation of ...