The dual-projection approach for two-mode networks |
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Authors: | MG Everett SP Borgatti |
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Institution: | 1. University of Manchester, UK;2. University of Kentucky, United States |
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Abstract: | There have been two distinct approaches to two-mode data. The first approach is to project the data to one-mode and then analyze the projected network using standard single-mode techniques, also called the conversion method. The second approach has been to extend methods and concepts to the two-mode case and analyze the network directly with the two modes considered jointly. The direct approach in recent years has been the preferred method since it is assumed that the conversion method loses important structural information. Here we argue that this is not the case, provided both projections are used together in any analysis. We illustrate how this approach works using core/periphery, structural equivalence and centrality as examples. |
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Keywords: | Two-mode networks Singular value decomposition Core/periphery Centrality Structural equivalence |
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