Mark Liberman (pronounced /ˈlɪbərmən/) is an American linguist. He has a dual appointment at the University of Pennsylvania, as Trustee Professor of Phonetics in the Department of Linguistics, and as a professor in the Department of Computer and Information Sciences. He is the founder and director of the Linguistic Data Consortium.
Liberman's main research interests lie in phonetics, prosody, and other aspects of speech communication. His early research established the linguistic subfield of metrical phonology. Much of his current research is conducted through computational analyses of linguistic corpora.
Liberman is also the founder of (and frequent contributor to) Language Log, a blog with a broad cast of dozens of professional linguists. The concept of the eggcorn was first proposed in one of his posts there.
Mobile phones and endangered languages 
As of August 2012, Dr. Liberman is slated to pilot a $101,501 (US) project, "to use mobile telephones to collect larger amounts of data on undocumented endangered languages than would ever be possible through usual fieldwork."
Liberman attended Harvard College but did not graduate. After two years' service in the U.S. Army in Vietnam, he enrolled in graduate school in Linguistics at MIT where he received his MA and, in 1975, his PhD. From 1975 until 1990 he was a Member of Technical Staff at Bell Laboratories.
- "NEH and NSF Award $4.5 Million to Preserve Languages Threatened With Extinction". National Endowment for the Humanities. 2012-08-09. Retrieved 2012-08-29.
- normblog: The normblog profile 196: Mark Liberman
- UPenn Linguistics: faculty.
- Mark Liberman and Geoffrey K. Pullum, Far from the madding gerund: and other dispatches from the Language Log. 2006, William, James, and Co. ISBN 1-59028-055-5.
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