• The Association for Computing Machinery (ACM) has named Sylvia Ratnasamy, Professor of Computer Science at UC Berkeley, to its 2025 class of ACM Fellows. • Ratnasamy is being recognized “for contributions to networks and networked systems.” Ratnasamy is widely known for her seminal work on Distributed Hash Tables (DHTs). • As a doctoral student, she co-authored the landmark paper “A Scalable, Content-Addressable Network,” which introduced a decentralized method for locating data in large-scale networks without a central registry. • This innovation has had a profound impact on the design of modern peer-to-peer systems and cloud infrastructure. • Ratnasamy joins a cohort of 71 new Fellows honored for their “remarkable results through technical innovation and service to the field.” This year’s honorees represent institutions across 14 countries, working in fields ranging from AI for healthcare to sustainable computing. • “These men and women represent the top 1% of professionals in our association,” said ACM President Yannis Ioannidis.

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  • Sylvia Ratnasamy named 2025 ACM Fellow The Association for Computing Machinery (ACM) has named Sylvia Ratnasamy, Professor of Computer Science at UC Berkeley, to its 2025 class of ACM Fellows. Ratnasamy is being recognized “for contributions to networks and networked systems.” Ratnasamy is widely known for her seminal work on Distributed Hash Tables (DHTs). As a doctoral student, she co-authored the landmark paper “A Scalable, Content-Addressable Network,” which introduced a decentralized method for locating data in large-scale networks without a central registry. This innovation has had a pro

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