Events
Past Event
Wednesdays@NICO Seminar: Re-Engineering Cities: The Role of Complexity Science
Northwestern Institute on Complex Systems (NICO)
12:00 PM
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Lower Level Chambers Hall
Details
Wednesdays@NICO | 12:00-1:00 PM, January 27, 2016 | Chambers Hall, Lower Level
Sybil Derrible, Assistant Professor, Civil and Materials Engineering & Director, Complex and Sustainable Urban Networks (CSUN) Lab, University of Illinois-Chicago
Abstract
By 2100, the global population is forecasted to reach 10 billion, with the vast majority of people living in cities. At the same time, cities will drastically need to adapt to provide for their residents in a sustainable manner. In the words of Einstein: “We cannot solve our problems with the same thinking we used when we created them–, and we therefore need to come up with novel solutions to effectively address our problems, away from the current practice. In this talk, I will not provide these solutions, but I will discuss recent research produced at the Complex and Sustainable Urban Networks (CSUN) Laboratory that can provide us with valuable and insightful information about our current performance. First, I will talk about our work on urban road systems; we notably found that they seem to possess a coupled complexity feature consisting of one fractal component and one non-fractal component. Second, I will discuss a new tool that we are developing using network science to perform binless frequency analyses. We have applied the tool to World Bank data (life expectancy, GDP, and GHG emissions) to track the performance of individual countries over time and to make a composite triple bottom line index. Finally, I will discuss several research ideas in the works, including ideas on spatial reasoning, inspired by Christopher Alexander's seminal article “The City is not a Tree–.
Bio
Sybil Derrible is an Assistant Professor of Sustainable Infrastructure Systems at the University of Illinois at Chicago and the Director of the Complex and Sustainable Urban Networks (CSUN) Laboratory. He has a Ph.D. from the University of Toronto, and he was a Visiting Research Fellow at the Singapore-MIT Alliance for Research and Technology. Sybil was recently awarded a NSF CAREER Award for his project “Understanding the Fundamental Principles Driving Household Energy and Resource Consumption for Smart, Sustainable, and Resilient Communities–. His main research focuses on using complexity science, urban metabolism, and geographic information systems to create knowledge and generate methods to help design more sustainable and resilient urban engineering systems.
Time
Wednesday, January 27, 2016 at 12:00 PM - 1:00 PM
Location
Lower Level Chambers Hall Map
Contact
Calendar
Northwestern Institute on Complex Systems (NICO)
WED@NICO SEMINAR: Lachlan Smith, University of Sydney "Chaos in networks of coupled oscillators with multimodal natural frequency distributions"
Northwestern Institute on Complex Systems (NICO)
12:00 PM
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Lower Level, Chambers Hall
Details
Speaker:
Lachlan Smith, Postdoctoral Fellow, School of Mathematics and Statistics. The University of Sydney
Title:
Chaos in networks of coupled oscillators with multimodal natural frequency distributions
Abstract:
Synchronization is ubiquitous to networks of coupled oscillators. We explore chaos in the Kuramoto model with multimodal distributions of the natural frequencies of oscillators and provide a comprehensive description under what conditions chaos occurs. For multimodal natural frequency distributions it is typical that there is a range of coupling strengths such that multiple synchronized clusters coexist, with one synchronized cluster per peak in the frequency distribution. We use collective coordinates to describe the inter- and intra-cluster dynamics, which reduces the Kuramoto model to a small number of effective degrees of freedom. We show that chaos of the phases of clusters can occur provided there are at least four peaks in the frequency distribution, and that chaos can occur via intermittent desynchronization of a cluster if there are three peaks. In addition, we use collective coordinates to show analytically that chaos cannot occur for bimodal frequency distributions, even if they are asymmetric and if intermittent desynchronization occurs.
Speaker Bio:
Lachlan Smith is currently a Postdoctoral Fellow at the University of Sydney in the School of Mathematics and Statistics, working with Georg Gottwald. Lachlan is interested in the collective behaviour of dynamical entities in networks, such as the synchronization of coupled oscillators. He uses a collective coordinate approach to reduce the dimension of the model, which allows greater analytical insight. Before moving to Sydney, Lachlan was a Postdoctoral Fellow at Northwestern University, working with Julio Ottino, Richard Lueptow and Paul Umbanhowar to study mixing and transport by cutting-and-shuffling, with applications to granular mixing. Lachlan received his PhD from Monash University in Mechanical Engineering.
Live Stream:
Time
Wednesday, May 29, 2019 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 2019 Meeting "Combining R with Python"
Northwestern Institute on Complex Systems (NICO)
6:30 PM
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Lower Level, Chambers Hall
Details
MARCH MEETING: Thursday, May 30, 2019 at 6:30pm in Chambers Hall, Evanston
DATA SCIENCE NIGHTS are monthly hack nights on popular data science topics, organized by Northwestern University graduate students and scholars. Aspiring, beginning, and advanced data scientists are welcome!
Theme: Combining R with Python
Agenda: TBA
For more info: data-science-nights.org
Supporting Groups:
This event is supported by the Northwestern Institute for Complex Systems, and the Northwestern Data Science Initiative.
Time
Thursday, May 30, 2019 at 6:30 PM - 8:30 PM
Location
Lower Level, Chambers Hall Map
Contact
Calendar
Northwestern Institute on Complex Systems (NICO)
WED@NICO SEMINAR: Lightning Talks with Northwestern Post Doctoral Fellows and Scholars!
Northwestern Institute on Complex Systems (NICO)
12:00 PM
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Lower Level, Chambers Hall
Time
Wednesday, June 5, 2019 at 12:00 PM - 1:00 PM
Location
Lower Level, Chambers Hall Map
Contact
Calendar
Northwestern Institute on Complex Systems (NICO)
Spring classes end
University Academic Calendar
All Day
Details
Spring classes end
Time
Saturday, June 8, 2019
Contact
Calendar
University Academic Calendar
Data Science Nights - June 2019 Meeting
Northwestern Institute on Complex Systems (NICO)
6:30 PM
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Lower Level, Chambers Hall
Details
MARCH MEETING: Thursday, June 27, 2019 at 6:30pm in Chambers Hall, Evanston
DATA SCIENCE NIGHTS are monthly hack nights on popular data science topics, organized by Northwestern University graduate students and scholars. Aspiring, beginning, and advanced data scientists are welcome!
Theme: TBA
Agenda: TBA
For more info: data-science-nights.org
Supporting Groups:
This event is supported by the Northwestern Institute for Complex Systems, and the Northwestern Data Science Initiative.
Time
Thursday, June 27, 2019 at 6:30 PM - 8:30 PM
Location
Lower Level, Chambers Hall Map
Contact
Calendar
Northwestern Institute on Complex Systems (NICO)
Data Science Nights - July 2019 Meeting
Northwestern Institute on Complex Systems (NICO)
6:30 PM
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Lower Level, Chambers Hall
Details
MARCH MEETING: Thursday, June 25, 2019 at 6:30pm in Chambers Hall, Evanston
DATA SCIENCE NIGHTS are monthly hack nights on popular data science topics, organized by Northwestern University graduate students and scholars. Aspiring, beginning, and advanced data scientists are welcome!
Theme: TBA
Agenda: TBA
For more info: data-science-nights.org
Supporting Groups:
This event is supported by the Northwestern Institute for Complex Systems, and the Northwestern Data Science Initiative.
Time
Thursday, July 25, 2019 at 6:30 PM - 8:30 PM
Location
Lower Level, Chambers Hall Map
Contact
Calendar
Northwestern Institute on Complex Systems (NICO)