Events
Past Event
WED@NICO SEMINAR: Yian Yin, Cornell University "Understanding the punctuated dynamics of scientific and technological frontiers"
Northwestern Institute on Complex Systems (NICO)
12:00 PM
//
Lower Level, Chambers Hall
Details
Speaker:
Yian Yin, Assistant Professor of Information Science, Cornell University
Title:
Understanding the punctuated dynamics of scientific and technological frontiers
Abstract:
The basic laws governing scientific and technological frontiers are critically important for economic growth and for our society more generally. Our quantitative understanding of these laws, however, remains limited. In order to shed light on the general empirical patterns in the evolution of these frontiers over time, we collect novel data that track the dynamics of more than 6.1M solutions to 5.8K tasks across diverse areas in science and technology–including data science, artificial intelligence, theoretical computer science , biomedical sciences, and physical wheel building. We find that, in contrast to the predictions of canonical models of chance and learning, the evolution of the knowledge frontier is characterized by a correlated bursty dynamic punctuated by intervals of long stasis. This pattern presents an intriguing co-existence of rapid progression and prolonged stagnation. Building on the rich literature in record statistics, economics of innovation, and cumulative cultural evolution, we develop a one-parameter mathematical framework that highlights a combination of incremental and radical innovations. Despite its simplicity, the model naturally explains all key empirical patterns across a wide range of conditions. This model of incremental and radical innovations also makes new predictions for individual and environmental factors that go beyond the current measurements, each of which is supported by our empirical data. Together, these results offer a new quantitative framework to understand and predict future advances in science and technology. They not only hold important lessons for innovators and innovation policymakers, but also have significant implications for other deep, complex social systems.
Speaker Bio:
Yian Yin is an assistant professor of information science at Cornell University. His research applies and develops novel computational tools to understand how individual, social, and environmental processes independently and jointly promote (or inhibit) scientific progress and innovation achievements. As a computational social scientist, he has also used science and innovation as a powerful lens to examine broader processes and outcomes in a wide range of complex social processes, from artistic and cultural productions to public policy, from media attention to market competition to human conflict. Yian received his Ph.D. in Industrial Engineering and Management Science at Northwestern University, with research affiliations at Northwestern Institute on Complex Systems and Kellogg Center for Science of Science and Innovation.
Location:
In person: Chambers Hall, 600 Foster Street, Lower Level
Remote option: https://northwestern.zoom.us/j/91574900792
Passcode: NICO2023
About the Speaker Series:
Wednesdays@NICO is a vibrant weekly seminar series focusing broadly on the topics of complex systems and data science. It brings together attendees ranging from graduate students to senior faculty who span all of the schools across Northwestern, from applied math to sociology to biology and every discipline in-between. Please visit: https://bit.ly/WedatNICO for information on future speakers.
Time
Wednesday, October 18, 2023 at 12:00 PM - 1:00 PM
Location
Lower Level, Chambers Hall Map
Contact
Calendar
Northwestern Institute on Complex Systems (NICO)
Data Science Nights - March 2026 - Speaker: Dawei Xie, Department of Computer Science
Northwestern Institute on Complex Systems (NICO)
5:30 PM
//
M416, Technological Institute
Details
MARCH MEETING: Thursday, March 19, 2026 at 5:30pm (US Central)
LOCATION:
ESAM Conference Room, Tech M416
2145 Sheridan Road, Evanston, IL 60208
AGENDA:
5:30pm - Meet and greet with refreshments
6:00pm - Talk with Dawei Xie, PhD student, Department of Computer Science, Northwestern University, working with Prof. Marcelo Worsley in the tiilt Lab.
TALK TITLE:
AI-Augmented Learning Analytics for Understanding Collaborative Discussions
ABSTRACT:
Collaborative learning has been recognized as an important skill for the 21st century, yet understanding what constitutes high-quality collaborative discussion remains a challenge. This talk explores how AI systems might move beyond traditional behavioral metrics to support nuanced semantic interpretations of collaborative learning. I present our recent work on an AI-augmented analytics system that transforms real-time group discussions into structured representations, and enables educators to explore collaboration quality through interaction with a conversational agent. I discuss both the technical architecture and the design considerations around how users and AI can jointly shape analytical outputs. Finally, I share findings on how this interplay can afford richer, more grounded sensemaking through analytical dialogue.
DATA SCIENCE NIGHTS are monthly meetings featuring presentations and discussions about data-driven science and complex systems, organized by Northwestern University graduate students and scholars. Students and researchers of all levels are welcome! For more information: http://bit.ly/nico-dsn
FUTURE DATES:
Data Science Nights will be held on Thursday evenings in the winter and spring terms, with future dates on April 30, and May 28, 2026.
Time
Thursday, March 19, 2026 at 5:30 PM - 7:30 PM
Location
M416, Technological Institute Map
Contact
Calendar
Northwestern Institute on Complex Systems (NICO)
WED@NICO SEMINAR: Spring Series returns on April 8th!
Northwestern Institute on Complex Systems (NICO)
12:00 PM
//
Lower Level, Chambers Hall
Details
The Wednesdays@NICO Speaker Series returns on April 8th for the spring term, running through May 20th, 2026. Detailed speaker info will be shared in the coming weeks.
Speakers:
4/08/2026 - Yu-Ru Lin - University of Pittsburgh
4/15/2026 - Nihar Shah - Carnegie Mellon University
4/22/2026 - Michelle Birkett - Northwestern University
4/29/2026 - Lightning Talks with NU Scholars - Sign up here!
5/06/2026 - Daniel Stouffer - Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB), Germany (NU Alum '07)
5/13/2026 - Hamsa Bastani - University of Pennsylvania
5/20/2026 - Andreia Sofia Teixeira - Northeastern University London
Location:
In person: Chambers Hall, 600 Foster Street, Lower Level
Remote option: Zoom links will be available
About the Speaker Series:
Wednesdays@NICO is a vibrant weekly seminar series focusing broadly on the topics of complex systems, data science and network science. It brings together attendees ranging from graduate students to senior faculty who span all of the schools across Northwestern, from applied math to sociology to biology and every discipline in-between. Please visit: https://bit.ly/WedatNICO for information on future speakers.
Time
Wednesday, April 8, 2026 at 12:00 PM - 1:00 PM
Location
Lower Level, Chambers Hall Map
Contact
Calendar
Northwestern Institute on Complex Systems (NICO)