Events
Past Event
Data Science Nights - February 2026 - Speaker: Siqiao Mu, Engineering Sciences and Applied Mathematics
Northwestern Institute on Complex Systems (NICO)
5:30 PM
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M416, Technological Institute
Details
FEBRUARY MEETING: Thursday, February 26, 2026 at 5:30pm (US Central)
NEW LOCATION:
ESAM Conference Room, Tech M416
2145 Sheridan Road, Evanston, IL 60208
AGENDA:
5:30pm - Meet and greet with refreshments
6:00pm - Talk with Siqiao Mu, Ph.D. Candidate, Department of Engineering Sciences and Applied Mathematics, Northwestern University
TALK TITLE:
Gradient Algorithms for Machine Unlearning
ABSTRACT:
Machine unlearning algorithms aim to efficiently remove data from a model without retraining it from scratch, in order to remove corrupted or outdated data or respect a user's "right to be forgotten." Since empirical unlearning heuristics can be unreliable, we desire "certified" machine unlearning algorithms, which are theoretically guaranteed to achieve probabilistic indistinguishability between the unlearned model and the model retrained on the retained data samples. While several works have proposed second-order unlearning algorithms, first-order methods such as gradient descent (GD) or stochastic gradient descent (SGD) algorithms are far more computationally tractable for large neural networks. We propose "Rewind-to-Delete," a first-order unlearning algorithm that is also black-box, in that it can be applied to trained models without costly precomputation. We prove certified unlearning guarantees and derive privacy-utility-complexity tradeoffs for both the GD and SGD versions.
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 March 19, April 30, and May 28, 2026.
Time
Thursday, February 26, 2026 at 5:30 PM - 7:30 PM
Location
M416, Technological Institute Map
Contact
Calendar
Northwestern Institute on Complex Systems (NICO)
Fall 2026 Classes Begin
University Academic Calendar
All Day
Details
Fall 2026 Classes Begin
Time
Wednesday, September 23, 2026
Contact
Calendar
University Academic Calendar
NICO Reading Group - Fall 2026 First Meeting
Northwestern Institute on Complex Systems (NICO)
6:00 PM
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Chambers Hall
Details
The NICO Reading Group meets for the first this fall on Wednesday, September 23, 2026. Please contact Jaeseon Ha if you are interested in joining our group.
About:
The NICO Reading Group brings together people across disciplines to read and discuss important ideas in modern AI. We focus on topics such as AI agents, tuning, harnesses, evaluation, AI for scientific discovery, and applications of AI across different fields. The goal is to understand important ideas in AI more deeply by learning and thinking across disciplines.
Leadership:
Jaeseon Ha, a Kellogg MBA + AI student, will lead the reading group during the Fall 2026 term. Please contact Jaeseon with any questions or reach out to us at nico@northwestern.edu.
Meeting Times:
Date: Biweekly on Wednesday evening, starting on September 23, 2026
Time: 6-7pm
Location: NICO main office, Chambers Hall,
600 Foster St, Evanston, IL 60208
Time
Wednesday, September 23, 2026 at 6:00 PM - 7:00 PM
Location
Chambers Hall Map
Contact
Calendar
Northwestern Institute on Complex Systems (NICO)
WED@NICO Seminar Series returns on September 30, 2026
Northwestern Institute on Complex Systems (NICO)
12:00 PM
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Lower Level, Chambers Hall
Details
The Wednesdays@NICO seminar series returns September 30, 2026, running through November 11, 2026, with the following speakers.
9/30/2026 - Luis Amaral, Northwestern University
10/7/2026 - Kristina Lerman, Indiana University
10/14/2026 - Tim Tangherlini, University of California, Berkeley
10/21/2026 - Andreia Sofia Teixeira, Northeastern University London
10/28/2026 - Rafael Prieto-Curiel, Complexity Science Hub, Vienna
11/4/2026 - Hamsa Bastani, University of Pennsylvania
11/11/2026 - Mayank Agrawal, Proof of Human
We will share detailed speaker information, talk titles and abstracts, in the coming weeks.
Location:
In person: Chambers Hall, 600 Foster Street, Lower Level
Remote option TBA
About the Speaker Series:
Wednesdays@NICO is a vibrant weekly seminar series focusing broadly on the topics of complex systems, networks, and artificial intelligence. 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, September 30, 2026 at 12:00 PM - 1:00 PM
Location
Lower Level, Chambers Hall Map
Contact
Calendar
Northwestern Institute on Complex Systems (NICO)