PeopleofSuperintelligence

Researcher

Frederick J. Damerau

Also known as Fred J. Damerau

Frederick J. Damerau was an IBM researcher in natural language processing whose work covered spelling correction, language analysis and text mining. He published a computer spelling-correction paper in 1964 and completed a Yale linguistics Ph.D. in 1966. At IBM, he worked on automatic parsing, hyphenation, question-answering research and machine-learning methods for text categorization. He coauthored a text-mining book in 2005 and died in 2009 after more than four decades of research.

Timeline

  1. 1964

    A spelling-correction paper

    In 1964, he publishes A technique for computer detection and correction of spelling errors, a paper on automatic spelling correction.

  2. 1966

    A Yale linguistics doctorate

    He completes a Yale linguistics Ph.D. dissertation titled Empirical investigation of statistically generated sentences in 1966. He later works as a researcher at IBM's Thomas J. Watson Research Center.

  3. 1970–1971

    Parsing, hyphenation and Markov models

    His 1970 CACM article reports correct, unambiguous identification of subjects and objects for certain verbs in about half of relevant occurrences. He patents an IBM automatic hyphenation scheme in 1970. He publishes Markov Models and Linguistic Theory in 1971.

  4. 1978

    A question-answering paper

    In 1978, he publishes The Derivation of Answers from Logical Forms in a Question Answering System in the American Journal of Computational Linguistics.

  5. 2001–2004

    Machine learning for text

    A 2001 patent names him as a co-inventor of an IBM decision-tree method for text categorization. In 2004, he coauthors a benchmark study that tests linear methods and decision trees on 810,000 Reuters stories.

  6. 2005

    A text-mining book

    He coauthors Text Mining: Predictive Methods for Analyzing Unstructured Information, published in 2005. The book covers methods for searching, retrieving and analyzing unstructured natural-language text.

  7. 2009

    More than four decades in research

    After more than four decades in research, he dies in 2009.

  1. Google had the most people shaping AI every year from 2014 to 2025Our estimates of which organizations employed the most people shaping AI from 1961 to 2025, with a year-by-year chart.
  2. The United States employs an estimated 53% of people in our data with a known employment countryOur estimates of where AI careers are concentrated now and how countries’ shares of dated positions changed over time.
  3. 46% of living people in our data with known birth and employment countries work outside their birth countryOur estimate of cross-border careers in AI, from country of birth and the country of each current organization.
  4. More people shaping AI studied at Massachusetts Institute of Technology than at any other institutionOur estimates of where the people shaping AI studied and where their careers led, from education records in cited biographies.

Sources and credits

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  1. Frederick J. Damerau - Wikipedia en.wikipedia.org. Checked 19 October 2026.
  2. Ph.D. Dissertations | Yale Linguistics ling.yale.edu. Checked 19 October 2026.
  3. Automatic Parsing for Content Analysis for CACM - IBM Research research.ibm.com. Checked 19 October 2026.
  4. US3537076A - Automatic hyphenation scheme - Google Patents patents.google.com. Checked 19 October 2026.
  5. The Derivation of Answers from Logical Forms in a Question Answering System - ACL Anthology aclanthology.org. Checked 19 October 2026.
  6. US6253169B1 - Method for improvement accuracy of decision tree based text categorization - Google Patents patents.google.com. Checked 19 October 2026.
  7. Text categorization for a comprehensive time-dependent benchmark - Illinois Experts experts.illinois.edu. Checked 19 October 2026.
  8. Text mining: Predictive methods for analyzing unstructured information - The Hong Kong University of Science and Technology Research Portal researchportal.hkust.edu.hk. Checked 19 October 2026.