By a News Reporter-Staff News Editor at Information Technology Newsweekly -- Investigators discuss new findings in Information Technology. According to news originating from Shanghai, People's Republic of China, by VerticalNews correspondents, research stated, "Q-measures are network indicators that gauge a node's brokerage role between different groups in the network. Previous studies have focused on their definition for different network types and their practical application."
Our news journalists obtained a quote from the research from Tongji University, "Little attention has, however, been paid to their theoretical and mathematical characterization. In this article we contribute to a better understanding of Q-measures by studying some of their mathematical properties in the context of unweighted, undirected networks. An external Q-measure complementing the previously defined local and global Q-measure is introduced. We prove a number of relations between the values of the global, the local and the external Q-measure and betweenness centrality, and show how the global Q-measure can be rewritten as a convex decomposition of the local and external Q-measures. Furthermore, we formally characterize when Q-measures obtain their maximal value."
According to the news editors, the research concluded: "It turns out that this is only possible in a limited number of very specific circumstances."
For more information on this research see: Mathematical properties of Q-measures. Journal of Informetrics, 2013;7(3):737-745. Journal of Informetrics can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Journal of Informetrics - www.elsevier.com/wps/product/cws_home/709551)
The news correspondents report that additional information may be obtained from R. Rousseau, Tongji Univ, Lib Tongji Univ, Shanghai 200092, People's Republic of China. Additional authors for this research include Y.X. Liu and R. Guns.
Keywords for this news article include: Asia, Shanghai, Information Technology, People's Republic of China
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