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
I am an assistant professor at Indiana University School of Informatics and Computing and a co-founder of Janys Analytics. I was a postdoctoral researcher at the Center for Complex Network Research at Northeastern University and a visiting researcher at the Center for Cancer Systems Biology at Dana-Farber Cancer Institute from June 2008 till May 2011. My post-doctoral advisor was Albert-László Barabási. I received my Ph.D. from Physics Department at KAIST in early 2008. My advisor was Hawoong Jeong.
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 recent work covers several area such as the hierarchical & modular structure in social and biological networks (e.g. Nature 466, 761-764, 2010, Science 333, 601, 2011), the analysis of metabolic networks (e.g. PNAS 107, 1082-1087, 2010), social media (e.g. twitter - pulse of the nation), and food (Sci. Rep. 1, 196, 2011).
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]