Center for Complex Networks and Systems Research
School of Informatics and Computing
Indiana University Bloomington
Informatics East, Rm 316
919 E 10th Street, Bloomington, IN 47408
Phone: +1 (812) 856 2920
Office hours: Tuesday 2:30pm-4pm (2014 Spring semester)
Book an appointment: http://doodle.com/yyahn (please suggest multiple slots)
Curriculum Vitae: cv.pdf
Yong-Yeol (YY) Ahn is an assistant professor at Indiana University School of Informatics and Computing and a co-founder of Janys Analytics. He develops and leverages mathematical and computational methods to study complex systems such as cells, the brain, society, and culture. His recent contribution includes a new framework to identify pervasively overlapping modules in networks, network-based algorithms to predict viral memes, and a new computational approach to study food culture. He is a recipient of several awards including Microsoft Research Faculty Fellowship. He worked as a postdoctoral research associate at the Center for Complex Network Research at Northeastern University and as a visiting researcher at the Center for Cancer Systems Biology at Dana-Farber Cancer Institute for three years after earning his PhD in Statistical Physics from KAIST in 2008.
I am interested in the structure and dynamics of complex systems, such as society and living organisms. So, I usually play with massive datasets and muse on the hidden patterns. My main research interests are:
Microsoft Research has named me as one of the 2014 Microsoft Research Faculty Fellows!
Our recent work on viral meme prediction was covered by Scientific American!
The paper “Geography and Similarity of Regional Cuisines in China” is published in PLOS ONE. Congratulations Yuxiao Zhu, Junming Huang, Zi-Ke Zhang, Qian-Ming Zhang, and Tao Zhou!
Our study on flavor network is cited in a fascinating WIRED article.
(underlined authors contributed equally)
Virality Prediction and Community Structure in Social Networks
L. Weng, F. Menczer, and Y.-Y. Ahn
Scientific Reports 3, 2522 (2013) [Link] [arXiv] [PDF] [Slides] [Project page] [Data]
Flavor network and the principles of food pairing
Y.-Y. Ahn, S. Ahnert, J. P. Bagrow, and A.-L. Barabási
Scientific Reports 1, 196 (2011) [Link] [arXiv] [PDF] [Hi-res Fig 2] [poster] [Ingredient-compounds dataset] [Recipe datasets with cuisines]
[Nature News] [Scientific American] [Technology Review] and [more]
Googling social interactions: Web search engine based social network construction
S. H. Lee, P.-J. Kim, Y.-Y. Ahn, and H. Jeong
PLOS ONE 5, e11233 (2010) [Link] [arXiv] [PDF] [Project page]
[NewScientist] [georgezaidan:Pocket Science]
Link communities reveal multiscale complexity in networks
Y.-Y. Ahn, J. P. Bagrow, and S. Lehmann
Nature 466, 761 (2010). [Link] [arXiv] [PDF] [source codes & visualization] [Talk slides]
[news@Northeastern] [한겨레 사이언스온]
A blueprint for antimicrobial hit discovery targeting metabolic networks
Y. Shen, J. Liu, G. Estiu, B. Isin, Y.-Y. Ahn, D.-S. Lee, A.-L. Barabási, V. Kapatral, O. Wiest, and Z. N. Oltvai
PNAS 107, 1082 (2010). [Link] [PDF]