PeopleofSuperintelligence

Researcher

William C. Mann

Also known as Bill Mann, William Mann

William C. Mann was a computational linguist who originated rhetorical structure theory (RST), which explains what makes written texts coherent, and he was especially well known for his work in text generation. He earned a doctorate in artificial intelligence and computer science at Carnegie Mellon University under Herbert Simon and Allen Newell, and he was a researcher at the Information Sciences Institute of the University of Southern California from the mid-1970s until 1990. There he published on the Nigel grammar in 1983 and the Penman language generation project in 1989, and he developed RST with Sandra Thompson and Christian Matthiessen, defining it with Thompson in a 1988 paper. Mann served as president of the Association for Computational Linguistics in 1987, was a consultant with the Summer Institute of Linguistics in Nairobi from 1990 to 1996, and died in 2004 after a long struggle with leukemia.

Timeline

  1. 1970s

    Carnegie Mellon and ISI

    He earns a Ph.D. in artificial intelligence and computer science at Carnegie Mellon University under Herbert Simon and Allen Newell. From the mid-1970s he is a researcher at the Information Sciences Institute of the University of Southern California, and in 1977 he coauthors "A Goal Oriented Model of Human Dialogue" with James A. Moore and James A. Levin.

  2. 1981

    Two discourse generators

    In 1981 he presents "Two Discourse Generators" at the 19th Annual Meeting of the Association for Computational Linguistics. He also publishes "Prospects for Computer-Assisted Dialect Adaptation" with David J. Weber in the American Journal of Computational Linguistics.

  3. 1983

    The Nigel grammar

    In June 1983 he publishes "An Overview of the Nigel Text Generation Grammar" in the proceedings of the 21st Annual Meeting of the Association for Computational Linguistics in Cambridge, Massachusetts. Text generation is the area he is especially well known for.

  4. 1983–1988

    Rhetorical structure theory

    Around 1983, he, Sandra Thompson and Christian Matthiessen note at ISI that no available theory of discourse structure gives enough detail to guide computer-based authoring, and they develop rhetorical structure theory (RST) in response. RST describes the relations that hold between parts of a text, explains what makes written texts coherent, and becomes the basis for a large body of discourse-related natural language research. He and Thompson publish "Rhetorical structure theory: toward a functional theory of text organization" in the journal Text in 1988.

  5. 1987

    President of the ACL

    In 1987 he serves as president of the Association for Computational Linguistics, between Ralph Weischedel in 1986 and Alan Biermann in 1988.

  6. 1989–1990

    The Penman project

    In 1989 he and Eduard H. Hovy publish "The Penman Language Generation Project" in the proceedings of a Speech and Natural Language workshop held in Philadelphia in February 1989. His years as a researcher at ISI end in 1990.

  7. 1990–1996

    Consultant in Nairobi

    From 1990 to 1996 he is a consultant with the Summer Institute of Linguistics, based in Nairobi.

  8. 2002–2005

    Dialogue macrogame theory

    In 2002 he publishes "Dialogue Macrogame Theory" in the proceedings of the Third SIGdial Workshop on Discourse and Dialogue. He dies in August 2004 after a long struggle with leukemia, and in 2005 Christian Matthiessen's obituary "Remembering Bill Mann" appears in Computational Linguistics.

Career

  1. 1990–1996Summer Institute of LinguisticsConsultant
  2. University of Southern CaliforniaResearcher

Education

  1. Carnegie Mellon UniversityPhD in artificial intelligence and computer science

From the biography.

  1. The median h-index is 48 at universities and 14 at frontier AI labsIncludes University of Southern California. The median h-index is 48 at universities and 14 at frontier AI labs. We compare publishing careers, recent citations, dual appointments and job moves across 2,420 university researchers and 308 frontier-lab researchers.
  2. Universities had a net outflow of 2,068 moves in AI careersIncludes University of Southern California. Our estimates of career flows and median h-index across universities and companies in AI, including the role of joint appointments and earlier academic jobs.
  3. People shaping AI work at a median of 3 organizations over a career: 3 for university starters and institute and lab starters, versus 2 for company startersIncludes University of Southern California. Across 6,853 people shaping AI with a dated work role, we estimate a median of 3 parent organizations over a career (mean 3.6), comparing role groups, starting sectors and starting decades from the 1950s to 2020–2026.
  4. Google has the highest combined h-index among AI organizationsIncludes University of Southern California. We estimate that Google holds the highest combined h-index at 8,016, while universities account for 73% of the deduplicated total across AI organizations.

Colleagues

People named in this biography, and people with dated positions at the same organization in the same years.

Sources and credits

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  1. William C. Mann - Wikipedia en.wikipedia.org. Checked 20 October 2026.
  2. William C. Mann - ACL Anthology aclanthology.org. Checked 20 October 2026.
  3. Prospects for Computer-Assisted Dialect Adaptation - ACL Anthology aclanthology.org. Checked 20 October 2026.
  4. An Overview of the Nigel Text Generation Grammar - ACL Anthology aclanthology.org. Checked 20 October 2026.
  5. Rhetorical Structure Theory sfu.ca. Checked 20 October 2026.
  6. Rhetorical Structure Theory | Information Sciences Institute isi.edu. Checked 20 October 2026.
  7. Rhetorical structure theory - Wikipedia en.wikipedia.org. Checked 20 October 2026.
  8. ACL Officers - Admin Wiki aclweb.org. Checked 20 October 2026.
  9. Obituary: Remembering Bill Mann - ACL Anthology aclanthology.org. Checked 20 October 2026.