SmallBlue is another recent internal social-networking platform that aims to answer questions such as “Who knows what?” “Who knows whom?” and “Who knows what about whom?” within an organization— without requiring explicit human involvement. This effort extends some of the methods discussed here by combining content analysis (of email and personal pages) with network analysis to identify experts in a particular area and their association with other experts.Acknowledgments Some of the work reported here has appeared in the Proceedings of the 9th International Conference on Knowledge Discovery and Data Mining and First Workshop on Web Mining and Social Network Analysis, ACM, 2007.References 1. C. Halverson et al., “World Jam: Supporting Talk among 50,000+,” IBM, 2001; www.research.ibm.com/ SocialComputing/Papers/cahetal2.pdf. 2. A.K. Jain and R.C. Dubes, Algorithms for Clustering Data, Prentice-Hall, 1988. 3. D.J. Watts and S.H. Strogatz, “Collective Dynamics of ‘Small-World’ Networks,” Nature, vol. 393, no. 6684, 1998, pp. 409–410. 4. H. Ebel, L.I. Mielsch, and S. Bornholdt, “Scale-Free Topology of E-mail Networks,” Physical Review, vol. 66, no. 3, 2002, pp. 35–103. 5. S.H. Strogatz, “Exploring Complex Networks,” Nature, vol. 410, no. 6825, 2001, pp. 268–276.Claudia Perlich is a research staff member at IBM Research. Contact her at perlich@ us.ibm.com.Maytal Saar-Tsechansky is an assistant professor of information, risk, and operations management in the McCombs School of Business at the University of Texas at Austin. Contact her at maytal.saar-tsechansky@ mccombs.utexas.edu.Wojciech Gryc is a graduate student at Cambridge University. Contact him at wojciech@gmail.com.Mary Helander is a research staff member at IBM Research. Contact her at helandm@ us.ibm.com.rick Lawrence is the manager of the predictive modeling group at IBM Research. Contact him at ricklawr@us.ibm.com.yan Liu is a research staff member at IBM Research. Contact her at liuya@us. ibm.com.Chandan reddy is an assistant professor in the Department of Computer Science at Wayne State University. Contact him at reddy@cs.wayne.edu.Saharon rosset is senior lecturer in the Statistics Department at Tel Aviv University. Contact him at saharon@post.tau.ac.il.Selected CS articles and columns are also available for free at http://ComputingNow.computer.org.
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