Professor Wang's current research interests include text mining algorithms and systems, data modeling and its applications, and combinatorial optimizations. His previous interests included large-scale network dynamics, cloud computing and search over encryption, network security, wireless networks, and computational complexity theory. He is particularly interested in algorithmic problems and mathematical modeling arising from practical applications, including data analysis and applications, intelligent text automation, wireless sensor networks, computational medicine, networking, and online social networks. He worked on computational complexity theory from late 1980s to early 2000s, including structural complexity, average-case complexity, and average NP-completeness.
