Lenore Blum
Also known as Lenore Carol Blum, Lenore Carol Epstein
Lenore Blum is a mathematician and computer scientist who develops formal models of consciousness for AI. She earned a mathematics doctorate at MIT in 1968, helped build a theory of computation over the real numbers, and coauthored Complexity and Real Computation in 1998. At Carnegie Mellon, she founded Women@SCS in 1999 and Project Olympus in 2007, and her mentoring work received a US Presidential Award in 2005. She coauthored the Conscious Turing Machine work with Manuel Blum in 2021 and CTM-AI in 2026, which combines that model with foundation models. As of October 2026, she is Distinguished Career Professor of Computer Science Emerita at Carnegie Mellon and a visiting chair professor at Peking University.
- Now at
- Carnegie Mellon University and Peking University
- Works
- 83
- Citations
- 5,924
- h-index
- 22
Publication numbers from OpenAlex, as of 27 October 2026.
Timeline
-
1942–1968
From architecture to mathematics
Born in New York in 1942, she attends school in Caracas and begins architecture studies at Carnegie Institute of Technology in 1959. She earns a mathematics BS at Simmons College in 1963 and a mathematics PhD at MIT in 1968, supervised by Gerald Sacks.
-
1968–1974
Berkeley and Mills College
With her 1968 doctorate, she takes a postdoctoral fellowship and lectureship in mathematics at the University of California, Berkeley. She joins Mills College in 1973 and founds its Mathematics and Computer Science Department in 1974, serving as head or co-head for 13 years.
-
1975–1981
President of the AWM
From 1975 to 1978, she serves as president of the Association for Women in Mathematics, which she helps found. She co-directs the Math/Science Network and its Expanding Your Horizons conferences for high school girls from 1975 to 1981.
-
1986–1989
Randomness and real computation
In 1986, she coauthors the Blum Blum Shub pseudorandom number generator with Manuel Blum and Michael Shub; it generates numbers by squaring modulo the product of two large primes. With Shub and Steve Smale, she introduces a theory of computation and complexity over the real numbers in 1989.
-
1988–1999
Complexity and Real Computation
In 1988, she joins the Theory Group at the International Computer Science Institute in Berkeley, and from 1992 to 1996 she serves as deputy director of the Mathematical Sciences Research Institute there. During a visiting professorship in mathematics and computer science at City University of Hong Kong from 1996 to 1998, she works on Complexity and Real Computation, published in 1998 with Felipe Cucker, Mike Shub and Steve Smale to develop complexity theory for scientific computing. She joins Carnegie Mellon University’s School of Computer Science in 1999.
-
1999–2007
Women@SCS and Project Olympus
In 1999, she founds Women@SCS at Carnegie Mellon to support women in computer science. She receives the Presidential Award for Excellence in Science, Mathematics, and Engineering Mentoring in 2005. In 2007, she founds Project Olympus, a proof-of-concept innovation center that helps faculty and students turn university research into companies.
-
2021
The Conscious Turing Machine
In 2021, she and Manuel Blum submit “A Theory of Consciousness from a Theoretical Computer Science Perspective: Insights from the Conscious Turing Machine,” which defines the Conscious Turing Machine (CTM). The model formalizes a version of cognitive neuroscientist Bernard Baars’ Global Workspace Theory of consciousness.
-
April 2024
American Academy election
In April 2024, she is elected to the American Academy of Arts and Sciences.
-
April 2026
The CTM-AI blueprint
In April 2026, she coauthors “CTM-AI: A Blueprint for General AI Inspired by a Model of Consciousness” with Haofei Yu, Yining Zhao, Manuel Blum and Paul Pu Liang. The paper proposes an AI system that combines the CTM with foundation models and uses many processors to select, integrate and exchange information.
-
As of October 2026
Emerita and visiting professor
As of October 2026, she is Distinguished Career Professor of Computer Science Emerita at Carnegie Mellon University and a visiting chair professor at Peking University. Her research with Manuel and Avrim Blum develops designs for conscious AI, drawing on theoretical computer science and cognitive neuroscience.
Career
- NowCarnegie Mellon UniversityDistinguished Career Professor of Computer Science Emerita
- NowPeking UniversityVisiting Chair Professor
- 1996–1998City University of Hong KongVisiting Professor of Mathematics and Computer Science
- 1992–1996Simons Laufer Mathematical Sciences InstituteDeputy Director
- 1988–1999International Computer Science InstituteTheory Group Member
- 1975–1981Math/Science NetworkCo-Director, Math/Science Network and Expanding Your Horizons Conferences
- 1973–1999University of California, BerkeleyPostdoctoral Fellow in Mathematics, Lecturer in Mathematics
- 1973–1988Mills CollegeFaculty Member, Founder, Mathematics and Computer Science Department
Education
- 1968Massachusetts Institute of TechnologyPhD in mathematics
- 1963Simmons CollegeBS in mathematics
- From 1959Carnegie Mellon UniversityArchitecture Studies
Sources and credits
Photo: We have no published photo of Lenore Blum yet. Send us a free-licensed photo.
- Lenore Blum (1942 - ) - Biography - MacTutor History of Mathematics
- Lenore Blum - Wikipedia
- Center on Frontiers of Computing Studies,Peking University
- Lenore Blum's Home Page
- Founding Director of Project Olympus Lenore Blum - Swartz Center for Entrepreneurship - Carnegie Mellon University
- Lenore Blum | Simmons University
- [2107.13704] A Theory of Consciousness from a Theoretical Computer Science Perspective: Insights from the Conscious Turing Machine
- Lenore Blum Elected to the American Academy of Arts & Sciences - News - Carnegie Mellon University
- [2605.04097] CTM-AI: A Blueprint for General AI Inspired by a Model of Consciousness
- Lenore Blum




