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Welch, Jennifer Professor - Term Appointment


I am interested in distributed computing systems, especially loosely-coupled, heterogeneous and failure-prone ones. My research approach encompasses formal models, algorithm design and analysis, and lower bounds and impossibility proofs. I am interested in problems that arise in a wide variety of contexts, whose common thread is the difficulties that arise from concurrency and uncertainty, especially that due to asynchrony and/or failures. The problems I have studied generally arise in providing infrastructure services (or "middleware") that can be used by end-user distributed applications, as opposed to the applications themselves. In more theoretical language, I have focused on ways to simulate more powerful (or better-behaved) systems on top of less powerful (or more poorly-behaved) systems.

HR job title

  • Retired Professor