Relaxations in practical clustering and blockmodeling
Network analysts try to explain the structure of complex networks by the partitioning of their nodes into - groups. These groups are either required to be dense (clustering) or to contain vertices of equivalent - positions (blockmodeling). However, there is a variety of definitions and quality measu...
Gespeichert in:
| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
March 2015
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| In: |
Informatica
Year: 2015, Jahrgang: 39, Heft: 3, Pages: 249-256 |
| ISSN: | 0350-5596 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: http://www.informatica.si/index.php/informatica/article/view/980
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| Verfasserangaben: | Stefan Wiesberg and Gerhard Reinelt |
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| 520 | |a Network analysts try to explain the structure of complex networks by the partitioning of their nodes into - groups. These groups are either required to be dense (clustering) or to contain vertices of equivalent - positions (blockmodeling). However, there is a variety of definitions and quality measures to achieve the - groupings. In surveys, only few mathematical connections between the various definitions are mentioned. - In this paper, we show that most of the definitions used in practice can be seen as certain relaxations of - four basic graph theoretical definitions. The theory holds for both clustering and blockmodeling. It can be - used as the basis of a methodological analysis of different practical approaches. | ||
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