
Kristina ToutanovaResearcher
Google DeepMind
Research Scientist
via Google DeepMind
Researcher

Research Scientist at Google DeepMind
Chang co-created BERT, which learns the meaning of a word by reading the text on both sides of it and transformed search, question answering, and other language tasks. He also developed methods that let models retrieve relevant documents instead of relying only on information stored during training.
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Google DeepMindWork and education history is primarily focused on AI-relevant roles and may not be comprehensive.
Last editorial review: August 7, 2026