Charles Lee Isbell Jr. (born December 18, 1968) is an American computer scientist known for research in interactive machine learning and human-centered artificial intelligence. He held academic leadership roles at the Georgia Institute of Technology, the University of Wisconsin-Madison, and the University of Illinois Urbana-Champaign, where he became the 11th chancellor in August 2025. His work spans technical contributions to Machine learning and significant efforts to broaden participation in computing education.
Isbell has published roughly 100 scientific papers and received multiple honors, including fellowships from the Association for Computing Machinery and the Association for the Advancement of Artificial Intelligence. He is recognized both for advancing interactive AI systems and for championing accessible computing education, including the first massively open online degree program in computer science.
Early life and education
Isbell earned a Bachelor of Science in information and computer science from the Georgia Institute of Technology in 1990)Skip. During his undergraduate years, he was named the outstanding student by the president as part of Georgia's Annual Academic Recognition Day. He received fellowships from AT&T Bell Labs and the National Science Foundation, which supported his graduate studies at the MIT Computer Science and Artificial Intelligence Laboratory.
At MIT, Isbell pursued research in artificial intelligence and machine learning. He also introduced what may have been the first online Black History Database. He completed his PhD in 1998 and joined AT&T Labs - Research, where he worked before returning to Georgia Tech in fall 2002 as a faculty member in the College of Computing.
Career at Georgia Tech
At Georgia Tech, Isbell became a leading figure in computing education reform. In 2006, he received an award for his work on Threads, the college's innovative curriculum framework that organizes computing studies around thematic threads. He also helped design the Georgia Tech Online Master of Science in Computer Science (OMSCS), a MOOC-supported degree program launched in 2014 that was the first of its kind and drew international attention. Isbell testified before Congress about this program.
Isbell held a series of administrative roles at Georgia Tech: associate dean in 2008, senior associate dean in 2012, and executive associate dean in 2017. He also founded and served as executive director of the Constellations Center for Education in Computing, which focuses on broadening participation in computing. His research on agents that interact in social communities has been featured in outlets such as the New York Times, the Washington Post, and Time magazine.
Deanship and Provostship
In April 2019, Georgia Tech announced that Isbell would succeed Zvi Galil as dean of the College of Computing, effective July 2019. He served in that role until July 2023. During his deanship, he continued to emphasize Machine learning and Artificial intelligence research while advocating for inclusive educational practices.
On May 1, 2023, the University of Wisconsin-Madison announced Isbell's appointment as provost and vice chancellor for academic affairs, effective August 1, 2023. He held that position until June 2025. In his role, he oversaw academic programs and faculty affairs at the university.
Chancellorship at Illinois
In mid-2025, Isbell was appointed the 11th chancellor of the University of Illinois Urbana-Champaign, succeeding Robert J. Jones. He began his tenure on August 1, 2025. As chancellor, he leads one of the largest public research universities in the United States, with responsibilities spanning academic programs, research enterprise, and campus operations. His appointment reflects a career trajectory from technical research to senior academic administration.
Research contributions
Isbell's research centers on interactive and human-centered AI, a subfield of Artificial intelligence that emphasizes systems that learn from and adapt to human feedback in real time. His work often involves Machine learning algorithms that operate in social and collaborative settings, such as agents that coordinate with users or other agents. He has co-authored papers on topics including autonomous agents, multi-agent systems, and user modeling.
Notable technical contributions include algorithms for reinforcement learning in interactive environments and methods for making machine learning more responsive to human input. His work has been cited widely in the AI community. His research has been featured in popular media, including the New York Times and The Washington Post, and in congressional testimony.
Isbell has published approximately 100 scientific papers. He has won two best paper awards at major conferences, reflecting the impact of his technical work on interactive machine learning.
Administrative roles
After serving as associate dean (2008), senior associate dean (2012), and executive associate dean (2017) at Georgia Tech, Isbell was named dean of the College of Computing in July 2019, succeeding Zvi Galil. He served in that role until July 2023. During his deanship, he continued to emphasize expanding access to computing education and fostering interdisciplinary research.
In August 2023, Isbell became provost and vice chancellor for academic affairs at the University of Wisconsin-Madison, succeeding Karl Scholz. He held that position until June 2025. He then transitioned to the University of Illinois Urbana-Champaign, where he began his role as chancellor on August 1, 2025.
Awards and honors
Isbell has received several major recognitions. He was named a fellow of the Association for Computing Machinery in 2019 "for contributions to interactive machine learning; and for contributions to broadening participation in computing." In 2019, he was also inducted as a fellow of the Association for the Advancement of Artificial Intelligence, with a citation recognizing his work in interactive machine learning, computing education, and increasing access. In 2021, he was elected a member of the American Academy of Arts and Sciences. He has also won two best paper awards for his technical publications.
Legacy and impact
Isbell's influence extends beyond his research. His leadership in creating the OMSCS program helped democratize graduate education in computing, making it accessible to thousands of students worldwide. At Georgia Tech, he championed the Threads curriculum, which allowed students to customize their studies around thematic areas. The Constellations Center for Education in Computing, which he founded, works to increase diversity in the field by supporting computing education in K-12 schools.
His move to the University of Illinois Urbana-Champaign marks a return to the Big Ten academic leadership, following his tenure at Wisconsin. Throughout his career, Isbell has been an advocate for using Artificial intelligence ethically and responsibly, and he has spoken publicly about the importance of broadening participation in the field.
Personal life
Isbell was born on December 18, 1968. Details about his early life and family are not widely publicized. He is known as a mentor to many students and a vocal proponent of diversity in computing. He continues to contribute to national discussions on AI education and policy.