Events
Past Event
WED@NICO SEMINAR: Linda Zhao, University of Chicago "Networks at Work: Officer Diversity, Racial Homophily, and Police Misconduct"
Northwestern Institute on Complex Systems (NICO)
12:00 PM
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Room L130 (lower level), Kellogg Global Hub
Details
Speaker:
Linda Zhao, Assistant Professor of Sociology at the University of Chicago
Title:
Networks at Work: Officer Diversity, Racial Homophily, and Police Misconduct
Abstract:
Although it is frequently argued that recruiting minority officers can improve policing by fostering positive contact and collaborations between minority and white officers, officer diversity could in theory also produce more racially polarized networks and thus have the opposite of the intended effect. Few studies so far consider how officer networks differ across policing contexts, and little is known about the link between the diversity of police workforces, the structure of officer networks, and policing outcomes. In this study, I use data from the second-largest police agency in the United States to analyze joint implications of officer diversity and racial homophily, defined as barriers to racial mixing in officer co-arrest networks, for police misconduct. Results show that levels of racial homophily are higher in districts with more diverse officer workforces, and that the combination of homophily and diversity is linked to an elevated risk of police misconduct, even after controlling for other explanations of misconduct at both the officer and district level. These patterns contradict the idea that diversifying police forces necessarily improves the internal dynamics of police forces and is consistent with the broader sociological insight that the benefits of diversity are challenged by racial homophily within social networks.
Speaker Bio:
Linda Zhao is an Assistant Professor of Sociology at the University of Chicago. She is interested in how social contexts (such as levels of diversity or inequality in a population) can shape intergroup dynamics in social networks, how social networks and social contexts are linked to our behaviors and decisions, and how such networks can generate inequality. Throughout, her projects investigate intergroup dynamics, inequality, and social influence in networks within the areas of immigrant integration, policing, and public health. Her current work leverages data from a range of contexts such as adolescent friendships in classrooms, officer networks in police departments, as well as quasi-experimental settings using computational models.
Location:
In person: Kellogg Global Hub room L130 (lower level) - please note, this is a different location than usual.
Remote option: https://northwestern.zoom.us/j/95939791011
Passcode: NICO23
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, May 24, 2023 at 12:00 PM - 1:00 PM
Location
Room L130 (lower level), Kellogg Global Hub Map
Contact
Calendar
Northwestern Institute on Complex Systems (NICO)
WED@NICO SEMINAR: Blaise Aguera y Arcas, Google "Symbiogenesis, Computational Parallelism, and Complexity in Evolution"
Northwestern Institute on Complex Systems (NICO)
12:00 PM
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Lower Level, Chambers Hall
Details
Speaker:
Blaise Agüera y Arcas, VP/Fellow, CTO of Technology & Society, Google
Title:
Symbiogenesis, Computational Parallelism, and Complexity in Evolution
Abstract:
Symbiogenesis-- the fusion of formerly independent self-replicating entities into a larger self-replicating entity-- is proposed as the driving force behind evolution's "arrow of time" toward ever-increasing complexity. We'll explore an Artificial Life system as a minimal motivating example, then discuss the implications for biological evolution beyond the "standard" accounts of Major Evolutionary Transitions and "intelligence explosions" in brainy species. Energetic and computational implications will also be addressed.
Speaker Bio:
Blaise Agüera y Arcas is a VP and Fellow at Google, where he is the CTO of Technology & Society and founder of Paradigms of Intelligence (Pi). Pi is an organization working on fundamental research in AI and related fields, especially the foundations of neural computing, active inference, sociality, evolution, and Artificial Life.
In 2008, Blaise was awarded MIT’s TR35 prize. During his tenure at Google, Blaise has innovated on-device machine learning for Android and Pixel; invented Federated Learning, an approach to decentralized model training that avoids sharing private data; and founded the Artists + Machine Intelligence program.
An External Professor at Santa Fe Institute and a frequent public speaker, Blaise has given multiple TED talks and keynoted NeurIPS. He has also authored numerous papers, essays, op-eds, and chapters, as well as two previous books, Who Are We Now? and Ubi Sunt. His most recent book, What Is Life?, is part 1 of the larger book What Is Intelligence?, forthcoming from Antikythera and MIT Press in September 2025.
Location:
In person: Chambers Hall, 600 Foster Street, Lower Level
Remote option: https://northwestern.zoom.us/j/98741396308
Passcode: NICO25
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, November 12, 2025 at 12:00 PM - 1:00 PM
Location
Lower Level, Chambers Hall Map
Contact
Calendar
Northwestern Institute on Complex Systems (NICO)
Data Science Nights - November 2025 - Speaker: Feihong Xu, ESAM
Northwestern Institute on Complex Systems (NICO)
5:30 PM
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Lower Level, Chambers Hall
Details
NOVEMBER MEETING: Thursday, November 20, 2025 at 5:30pm (US Central)
LOCATION:
In person: Chambers Hall, Lower Level
600 Foster Steet, Evanston Campus
AGENDA:
5:30pm - Meet and greet with refreshments
6:00pm - Talk with Feihong Xu, Amaral Lab, ESAM
Talk title and abstract TBA.
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
Time
Thursday, November 20, 2025 at 5:30 PM - 7:30 PM
Location
Lower Level, Chambers Hall Map
Contact
Calendar
Northwestern Institute on Complex Systems (NICO)
Data Science Nights - December 2025 - Speaker: Yash Chainani, Chemical Engineering
Northwestern Institute on Complex Systems (NICO)
5:30 PM
//
Lower Level, Chambers Hall
Details
DECEMBER MEETING: Thursday, December 18, 2025 at 5:30pm (US Central)
LOCATION:
In person: Chambers Hall, Lower Level
600 Foster Steet, Evanston Campus
AGENDA:
5:30pm - Meet and greet with refreshments
6:00pm - Talk with Yash Chainani, Broadbelt & Tyo Labs, Chemical Engineering
Talk title and abstract TBA.
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
Time
Thursday, December 18, 2025 at 5:30 PM - 7:30 PM
Location
Lower Level, Chambers Hall Map
Contact
Calendar
Northwestern Institute on Complex Systems (NICO)