David Andreoff Evans
Also known as David A. Evans
David Andreoff Evans is a computational linguist whose work applies natural-language processing to text indexing and retrieval. He earned a Stanford PhD, then taught linguistics and computer science and established a computational-linguistics program and laboratory at Carnegie Mellon. CLARIT grew into Claritech, and his later papers examined noun-phrase analysis and cross-language retrieval; he was elected a Fellow of the American College of Medical Informatics in 1999. As of October 2026, he is President and Chief Scientist of MetaMoJi Global Research.
Timeline
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1948–1982
From St. Louis to Stanford
He is born in St. Louis in 1948. He completes a Stanford PhD in computational linguistics in 1982.
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1981
A speech-acts paper
He presents “A Situation Semantics Approach to the Analysis of Speech Acts” at the 19th Annual Meeting of the Association for Computational Linguistics in 1981.
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1983–1996
A lab at Carnegie Mellon
At Carnegie Mellon, he is Professor of Linguistics and Computer Science from 1983 through 1996. He establishes the Computational Linguistics Program and Laboratory for Computational Linguistics in 1986.
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September 1992
CLARIT becomes Claritech
He leads CLARIT, a project on computational-linguistic approaches to text indexing and retrieval. In September 1992, CLARIT spins out from Carnegie Mellon as Claritech.
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1996
A noun-phrase analysis paper
With Chengxiang Zhai, he publishes “Noun Phrase Analysis in Large Unrestricted Text for Information Retrieval” at the 34th ACL meeting.
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1999
An ACMI fellowship
He is elected a Fellow of the American College of Medical Informatics in 1999.
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2005
Cross-language information retrieval
He coauthors “The Use of Monolingual Context Vectors for Missing Translations in Cross-Language Information Retrieval” with Yan Qu and Gregory Grefenstette in 2005.
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As of October 2026
President and chief scientist
He is President and Chief Scientist of MetaMoJi Global Research.
Career
- NowMetaMoJi Global ResearchPresident and Chief Scientist
- 1983–1996Carnegie Mellon UniversityProfessor of Linguistics and Computer Science
Education
- 1982Stanford UniversityPhD in computational linguistics
Most-cited works
- Toward a Medical-concept Representation Language
- Noun-phrase analysis in unrestricted text for information retrievalWith Chengxiang Zhai
- Conversation as Planned BehaviorWith Jerry Robert Hobbs
- A Statistical Approach to Automatic OCR Error Correction in Context
- Coupling niche browsers and affect analysis for an opinion mining application
Sources and credits
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- David Andreoff Evans - Wikipedia
- A Situation Semantics Approach to the Analysis of Speech Acts - ACL Anthology
- David A. Evans - Menlo Park, California, Stanford (A.B., B.S., Ph.D.) | about.me
- Noun Phrase Analysis in Large Unrestricted Text for Information Retrieval - ACL Anthology
- David A. Evans - ACL Anthology





