Albert-László Barabási (born March 30, 1967) is a Romanian-born Hungarian scientist. He is the former Emil T. Hofmann professor at the University of Notre Dame and current Distinguished Professor and Director of Northeastern University’s Center for Complex Network Research (CCNR) and an associate member of the Center of Cancer Systems Biology (CCSB) at the Dana Farber Cancer Institute, Harvard University. He introduced in 1999 the concept of scale-free networks and proposed the Barabasi-Albert model to explain their widespread emergence in natural, technological and social systems, from the cellular telephone to the World Wide Web or online communities. Barabási has been a major contributor to the development of real-world network theory, together with several other scientists from physics, mathematics, and computer science. His biggest role has been the introduction of the scale-free network concept. Among the topics in network theory that Barabási has studied are growth and preferential attachment, the mechanisms probably responsible in part for the structure of the World Wide Web or the cell (Wikipedia).
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