Dragomir Radev
Dragomir Radev researched NLP, summarization and language-based interaction. He coauthored LexRank with G. Erkan in 2004, using a graph of sentence similarities to estimate importance for summarization. He joined Yale in 2017 after Michigan faculty work. ACL elected him a Fellow in 2018 and gave him its Distinguished Service Award in 2022. He also helped found NACLO and taught AI and NLP. He died on 29 March 2023.
- Works
- 386
- Citations
- 22,578
- h-index
- 75
Publication numbers from OpenAlex, as of 14 October 2026.
Timeline
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2004
LexRank and sentence relationships
Radev and G. Erkan published LexRank in 2004. The original journal abstract describes a graph in which sentence similarity defines connections and centrality estimates sentence importance. The method addresses extractive summarization: selecting sentences from documents to form a shorter account.
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2017
A Yale research career
Radev joined Yale in 2017 after faculty work at Michigan. At Yale, he collaborated with medicine, linguistics and neuroscience and worked on projects involving electronic health records, book summaries and humor in language systems.
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2018–2022
Professional service and teaching
ACL elected Radev a Fellow in 2018. He served ten years as ACL secretary and received its 2022 Distinguished Service Award. He also co-founded NACLO and coached for the International Linguistics Olympiad. These activities brought language and computing to students as well as researchers.
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2023
Later life
Radev died on 29 March 2023. He taught AI and NLP, including assignments on games, maze solving and neural translation.
Sources and credits
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