What is the fine-grained topic of the following text: In his work at the MIT Media Lab, where he completed his doctoral studies, he has collaborated with international and interdisciplinary teams in the design and implementation of groundbreaking works that focus on new modes of representing expression, massive creative collaborations, and new models of presence in live performance. Only return the topic.
MIT Media Lab doctorate's work on innovative projects in expression representation, creative collaborations, and live performance presence.