Tag Archives: cognition

COSINE: Cognitive Online Simulation of Information Network Environments

geo-homophilyThe goal of this project is to create a cognitive agent simulation framework for studying social behavior in online information environments. We are developing a scalable, virtual laboratory, calibrated on real-world data, for studying dynamics of online social phenomena and information diffusion at different temporal resolutions and at multiple scales, from individual to community to global collective behavior.

Individual agent models within COSINE will be based on first-principles of human behavior uncovered through empirical analysis of the vast troves of online behavioral data. These models will incorporate bounded rationality and cognitive biases within models of attention. In addition, COSINE’s multi-resolution, scalable framework will enable time-resolved, massive simulations of dynamic information environments.

Key to COSINE’s success will be its ability to model complex phenomena arising in multiplex networked information environments. To achieve this, COSINE will incorporate networks into interactions between agents, thereby enabling the study of the interplay between individual behaviors and network structure, including (a) how individual traits affect where in the network individuals position themselves, (b) the information environment these positions produce, and (c) the impact this has on individual behavior. Finally, the system will be calibrated on real-word data collected from a plethora of online platforms.


COSINE is a collaboration with colleagues at the USC Information Sciences Institute (Emilio Ferrara, PI; Kristina Lerman and Jim Blythe, co-PIs) and the University of Notre Dame (Tim Weninger, co-PI). The IU team:

Fil Menczer, PI
Fil Menczer
Sandro Flammini
Sandro Flammini
YY Ahn
YY Ahn
John Bollenbacher
John Bollenbacher
Pik-Mai Hui
Pik-Mai Hui
Nathaniel Rodriguez
Nathaniel Rodriguez


This project is supported by the DARPA SocialSim program under contract W911NF-17-C-0094.

Luis Rocha

Luis Rocha
Luis Rocha

School of Informatics and Computing
Indiana University

My web site and Research Lab (CASCI).


Luis M. Rocha is Professor of Informatics in the School of Informatics, Computing, and Engineering at Indiana University, Bloomington, where he is director of the NSF-NRT Interdisciplinary Training Program in Complex Networks and Systems, director of the Complex Networks & Systems track of the Informatics PhD Program, member of the Indiana University Network Science Institute, and core faculty of the Cognitive Science Program. Dr. Rocha is a Fulbright Scholar and is Principal Investigator at the Instituto Gulbenkian da Ciencia, Portugal, and Visiting Professor of the Neuroscience Program, at the Champalimaud Foundation in Portugal, and the Center for Theoretical Physics at the Aix-Marseille University, France. His research is on complex networks & systems, Computational & Systems Biology, and Computational Intelligence and he is the Principal Investigator of the Complex Adaptive Systems & Computational Intelligence lab (CASCI). He received his Ph.D in Systems Science in 1997 from the State University of New York at Binghamton. From 1998 to 2004 he was a permanent staff scientist at the Los Alamos National Laboratory, where he founded and led a Complex Systems Modeling Team during 1998-2002, and was part of the Santa Fe Institute research community. He has organized major conferences such as the Tenth International Conference on the Simulation and Synthesis of Living Systems (Alife X) and the Ninth European Conference on Artificial Life (ECAL 2007). He has published many articles in scientific and technology journals, and has been the recipient of several scholarships and awards. At Indiana University, he has received the Indiana University, School of Informatics & Computing, Trustees Award for Teaching Excellence in 2006 and 2015 after developing the complex systems training program and syllabi for several courses. Additional information about Prof. Rocha’s research, academic and personal activities is available on his website. Contact Information:

In The USA:
Center for Complex Networks and Systems Research
School of Informatics & Computing
Indiana University, 919 E. 10th St
Bloomington IN, 47408, USA

In Portugal:
Instituto Gulbenkian de Ciência
Rua da Quinta Grande, 6
Apartado 14, P-2781-901 Oeiras, Portugal

Course and research-related blogs


Peter M. Todd (PI)
Peter M. Todd (PI)

Adaptive Behavior and Cognition—West

parging spaces simulation movieThe Adaptive Behavior and Cognition Lab–West (ABC-West) is dedicated to exploring the cognitive mechanisms that people (and other animals) use to behave adaptively in their environments. We study the interactions between behavior and environment at multiple scales–including how cognitive mechanisms have evolved in response to particular environmental structures, how behaviors are learned through interactions with the environment, and how behaving and acting in the world can change the environmental structures that agents face in the future. We look at particular adaptively important domains such as mate choice and food choice, and we use tools including agent-based modeling and simulation and laboratory experiments. ABC-West was formed in 2005 through budding from the original ABC Research Group in Berlin, Germany.


Complex Adaptive Systems and Computational Intelligence

The Complex Adaptive Systems and Computational Intelligence (CASCI) group at Indiana University and the Instituto Gulbenkian de Ciencia works on complex networks & systems and their applications to informatics, biology, health, and social systems. We are particularly interested in the informational properties of natural and artificial systems which enable them to adapt and evolve. This means both understanding how information is fundamental for controlling the behavior and evolutionary capabilities of complex systems, as well as abstracting principles from natural systems to produce adaptive information technology.

Our research projects are on complex networks & systems, computational and systems biology, and computational intelligence; all our publications are available online as are news about our group. Additional information available on Luis Rocha’s Website and our group page at the Instituto Gulbenkian de Ciencia.

See our current roster and information on how to join our group. As a group, we are seriously interconnected with other research groups and networks: The Center for Complex Networks and Systems (CNets), the Indiana University Network Science Institute, the Cognitive Science Program, the FLAD Computational Biology Collaboratorium, the Instituto Gulbenkian de Ciência, and the Champalimaud Neuroscience Program.

You are welcome to join our mailing list CASCI-L by sending an email message to list@list.indiana.edu from the address you want to subscribe to the list, with subject line: subscribe CASCI-L Firstname Lastname (leave the message body blank.) More detailed instructions are available.