Events
Past Event
WED@NICO SEMINAR: Todd Florin and Nelson Sanchez-Pinto, Lurie Children's Hospital of Chicago "Transforming Research and Innovation for Acutely Ill Children"
Northwestern Institute on Complex Systems (NICO)
12:00 PM
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Lower Level, Chambers Hall
Details
Speakers:
Todd Florin, MD, MSCE, Associate Division Head for Academic Affairs & Research, Division of Emergency Medicine, Ann & Robert H. Lurie Children’s Hospital of Chicago; Professor of Pediatrics (Emergency Medicine), Northwestern University Feinberg School of Medicine
L. Nelson Sanchez-Pinto, MD, MBI, Attending Physician, Critical Care, Ann & Robert Lurie Children’s Hospital of Chicago; Associate Professor of Pediatrics (Critical Care) and Preventive Medicine (Health and Biomedical Informatics), Northwestern University Feinberg School of Medicine
Title:
Transforming Research and Innovation for Acutely Ill Children
Abstract:
We will present an overview of the new Center for Pediatric Acute and Critical Care Research and Innovation (PACCRI) at Lurie Children's Hospital and its goal of fostering and facilitating ambitious, high-risk/high-reward research collaboration between clinicians and engineers, computer scientists, and data scientists. We will present two areas of active research by PACCRI faculty that may overlap with NICO faculty expertise: (1) predicting pneumonia in the emergency department, and (2) modeling hospital strain and resource allocation to prevent patient deterioration.
Speaker Bios:
Dr. Todd Florin is Professor of Pediatrics in the Division of Pediatric Emergency Medicine at Lurie Children’s Hospital of Chicago and Northwestern University Feinberg School of Medicine. He is Associate Division Chief for Academic Affairs & Research for the Division of Emergency Medicine at Lurie, Scientific Director of Research Development at Stanley Manne Children’s Research Institute, and Co-Director of PACCRI. Dr. Florin's research program aims to improve the diagnosis, management and outcomes of children with common, serious infections, with a current focus on lower respiratory tract infections. Complex challenges that Dr. Florin is tackling include heterogeneous and ill-defined phenotypes, lack of readily measurable reference standards, and unreliable clinical measurements. Current work centers on development of risk stratification tools and use of biomarkers to predict and improve outcomes in children with pneumonia at the point-of-care. His work has also centered on resource utilization, variation in care, antimicrobial stewardship, and use of clinical trials to improve treatments for respiratory tract infections in children. He is PI of an R01 from NHLBI to develop and validate a pediatric pneumonia risk score across 14 pediatric emergency departments, in addition to Co-PI of a 19-site clinical trial evaluating antibiotic treatment strategies in children with pneumonia funded by PCORI. He is co-PI on 2 multinational prospective cohort studies through the Pediatric Emergency Research Network (PERN) - one focused on pneumonia and the other on COVID-19 in children presenting for emergency care.
Dr. Nelson Sanchez-Pinto, MD, MBI, is a pediatric critical care physician and clinical informatics specialist. He is an Associate Professor of Pediatrics (Division of Critical Care) and Preventive Medicine (Division of Biostatistics and Informatics) at Northwestern University and Ann & Robert H. Lurie Children’s Hospital of Chicago. His NIH-funded research focuses on applying data science and informatics tools to improve the care of children with sepsis and other acute and critical care conditions. He leads several large-scale data sharing initiatives and data collaboration projects both nationally and internationally, including co-leading the team that derived and validated the new Phoenix criteria for sepsis in children. He is one of the founders and past chairs of the PICU Data Collaborative, which collects granular, anonymized electronic health record data from critically ill children from 26 institutions in the US.
Location:
In person: Chambers Hall, 600 Foster Street, Lower Level
Remote option: https://northwestern.zoom.us/j/92586384543
PW: NICO26
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, February 25, 2026 at 12:00 PM - 1:00 PM
Location
Lower Level, Chambers Hall Map
Contact
Calendar
Northwestern Institute on Complex Systems (NICO)
Data Science Nights - MAY 2026 - Speaker: Xudong Tang, Computer Science and NICO
Northwestern Institute on Complex Systems (NICO)
5:30 PM
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M416, Technological Institute
Details
MAY MEETING: Thursday, May 28, 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 Xudong Tang, PhD Student, Computer Science, NICO, and the Human-AI Collaboration Lab, Northwestern University
TALK TITLE:
Human and Machine Perception of Voice Similarity
ABSTRACT:
Modern voice cloning systems generate synthetic speech that listeners frequently cannot identify as being synthetic. But a voice can sound natural without sounding like the intended person, and what determines whether a clone is heard as a particular person is an open question. Here we report a large-scale preregistered experiment in which we collected 92,239 responses from 175 participants on their perception of pairs of real recordings, voice clones, and continuously morphed voices drawn from 100 contemporary celebrities across 20 speaker groups. We find that voice clones do not reliably preserve perceived speaker identity, reducing same-speaker judgments by 12.7 percentage points even though the clones are produced by a state-of-the-art text-to-speech model, while leaving different-speaker judgments unchanged. Using continuously morphed stimuli, we find that speakers vary substantially in how much variation their perceived identity tolerates, and that this variation is not predicted by speaker demographics. Speaker embeddings account for 58.9\% (95\% CI = [55.7, 61.9]) of variance in identity judgments, which is more than acoustic features, social attributes, and clone status combined. Once all these observed features are accounted for, clone status adds no additional predictive power. These results shows that the perceptual impact of voice cloning is positional rather than categorical: we can model how listeners judge a voice by how close it falls to the perceptual boundary that defines each speaker's recognizable voice, applying the same criterion to real and synthetic speech alike.
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 return in September!
Time
Thursday, May 28, 2026 at 5:30 PM - 7:00 PM
Location
M416, Technological Institute Map
Contact
Calendar
Northwestern Institute on Complex Systems (NICO)
Spring 2026 Commencement
University Academic Calendar
All Day
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Spring 2026 Commencement
Time
Sunday, June 14, 2026
Contact
Calendar
University Academic Calendar
Juneteenth - University Closed
University Academic Calendar
All Day
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Juneteenth - University Closed
Time
Friday, June 19, 2026
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Calendar
University Academic Calendar
Independence Day (observed) - University Closed
University Academic Calendar
All Day
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Independence Day (observed) - University Closed
Time
Friday, July 3, 2026
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University Academic Calendar
Fall 2026 Classes Begin
University Academic Calendar
All Day
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Fall 2026 Classes Begin
Time
Wednesday, September 23, 2026
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University Academic Calendar