Many research labs around the world are offering to host students and researchers affected by the war in Ukraine so they can continue their studies (more than 700 labs signed up so far from all fields of science): https://docs.google.com/spreadsheets/d/1HqTKukfJGpmowQnSh4CoFn3T6HXcNS1T1pK-Xx9CknQ/edit?usp=sharing
I can also connect you to research groups at our Computer Science department at ETH Zurich that offer several positions with funding covering all costs (travel, accommodation, living costs). Offers are internships for undergraduate or graduate students, research visits, PhD or PostDoc positions in various topics such as machine learning, computer vision, theory, security, systems, etc.
It would be great if you could share this information further to increase chances of helping someone!
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