News & EventsDepartment Events & Announcements
Events
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Aug1
EVENT DETAILS
Online platforms increasingly rely on information dashboards to influence decision-making in uncertain environments. Rideshare platforms use pricing dashboards to influence where and when drivers operate. Advertising platforms display auction dashboards to guide bidding behavior. Public agencies publish forecast dashboards to shape public responses to extreme weather or health risks. These dashboards function not as neutral displays but design artifacts that systematically structure information, influencing how users perceive and respond to it. By choosing what information to display and how to present it, designers can guide attention, influence trust, and steer behavior to align user actions with intended system outcomes. This dissertation investigates how strategic dashboard design influences decision-making and system outcomes in uncertain environments, particularly when decision makers operate under cognitive limitations and computational constraints.
Through a series of behavioral experiments in strategic, auction, and forecast-based decision-making environments, I examine how dashboards influence user behavior and system outcomes. By systematically varying dashboard design features, i.e, information disclosure, uncertainty visualization, and feedback, I show that dashboards impact belief formation, shift strategic reasoning, and improve decision-making and inference. Collectively, these studies establish dashboard design as a key tool for shaping behavior and outcomes in information-mediated decision environments.
TIME Friday, August 1, 2025 at 1:00 PM - 3:00 PM
LOCATION 3514, Mudd Hall ( formerly Seeley G. Mudd Library) map it
CONTACT Wynante R Charles wynante.charles@northwestern.edu EMAIL
CALENDAR Department of Computer Science (CS)
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Aug4
EVENT DETAILS
How much does prior knowledge about the number of clusters, $k$, influence the statistical feasibility and algorithmic performance of clustering methods? In this thesis, we explore two complementary clustering paradigms to elucidate the central role played by cluster cardinality. We first investigate Gaussian Mixture Models, a widely-used framework for clustering high-dimensional data. Here, knowledge of $k$ proves critical: we demonstrate a fundamental statistical barrier wherein mixtures of spherical Gaussians with unknown number of components become indistinguishable from a single Gaussian distribution, unless their pairwise mean separation is on the order of $\min(\sqrt{\log k}, \sqrt{d})$. Without prior knowledge or stronger assumptions, even the detection of multiple clusters is impossible, highlighting that knowing the correct number of components is an inherent necessity in Gaussian Mixture Models. In contrast, we examine Correlation Clustering, which is explicitly formulated without reference to the number of clusters. Objects are clustered based solely on possibly inconsistent pairwise similarity or dissimilarity labels. We provide improved approximation algorithms for the local-error objective in both complete and incomplete information settings. Furthermore, we introduce a more general model which we call the Correlation Clustering with Asymmetric Classification Errors, and present novel approximation guarantees tailored to this richer scenario.
Together, these results reveal a fundamental dichotomy: the cluster cardinality is either a crucial piece of structural information that defines feasibility, as in Gaussian Mixture Models, or an intentionally omitted parameter whose absence motivates alternative local objective functions, as in Correlation Clustering. Leveraging this dichotomy is thus essential for effectively choosing and employing clustering methods in practice.
TIME Monday, August 4, 2025 at 1:30 PM - 4:00 PM
LOCATION 3501, Mudd Hall ( formerly Seeley G. Mudd Library) map it
CONTACT Wynante R Charles wynante.charles@northwestern.edu EMAIL
CALENDAR Department of Computer Science (CS)
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Aug20
EVENT DETAILS
Join us to explore the McCormick School of Engineering’s strategic vision and its vital role in advancing Northwestern’s top priorities. From groundbreaking research to transformative education, Northwestern Engineering is shaping solutions to the world’s most pressing challenges and working to advance Northwestern. During this presentation, you will learn directly from Dean Christopher Schuh on how our alumni community can come together to amplify this impact—through engagement, mentorship, philanthropy, and industry connections. Learn how your involvement can help unlock bold ideas and ensure Northwestern remains a global leader in engineering and beyond.
Event Contact Info
NAA Alumni Education
alumnieducation@northwestern.eduTIME Wednesday, August 20, 2025 at 12:00 PM - 1:00 PM
CONTACT Andi Joppie andi.joppie@northwestern.edu EMAIL
CALENDAR McCormick School of Engineering and Applied Science
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Sep8
EVENT DETAILS
Enjoy a welcome from Dean Christopher A. Schuh and other McCormick leaders, and receive a Northwestern Engineering T-shirt. A free light breakfast on the Tech East Plaza will follow.
TIME Monday, September 8, 2025 at 9:00 AM - 10:00 AM
LOCATION LR2 & Tech East Plaza, Technological Institute map it
CONTACT Andi Joppie andi.joppie@northwestern.edu EMAIL
CALENDAR McCormick School of Engineering and Applied Science
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Sep12
EVENT DETAILS
New Undergraduate Fall 2025 Registration
TIME Friday, September 12, 2025
CONTACT Office of the Registrar nu-registrar@northwestern.edu EMAIL
CALENDAR University Academic Calendar
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Sep15
EVENT DETAILS
Enjoy a welcome from Dean Christopher A. Schuh and other McCormick leaders, and receive a Northwestern Engineering T-shirt. A free lunch on the Tech East Plaza will follow.
TIME Monday, September 15, 2025 at 11:00 AM - 12:30 PM
LOCATION Ryan Auditorium & Tech East Plaza, Technological Institute map it
CONTACT Andi Joppie andi.joppie@northwestern.edu EMAIL
CALENDAR McCormick School of Engineering and Applied Science
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Sep16
EVENT DETAILS
Fall Classes Begin. Change of Registration (Drop/Add) Late registration for returning students begins
TIME Tuesday, September 16, 2025
CONTACT Office of the Registrar nu-registrar@northwestern.edu EMAIL
CALENDAR University Academic Calendar
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Sep25
EVENT DETAILS
TBA
TIME Thursday, September 25, 2025 at 9:00 AM - 11:00 AM
CONTACT Wynante R Charles wynante.charles@northwestern.edu EMAIL
CALENDAR Department of Computer Science (CS)