Edge vulnerability in neural and metabolic networks
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Edge vulnerability in neural and metabolic networks. / Kaiser, Marcus; Hilgetag, Claus C.
in: BIOL CYBERN, Jahrgang 90, Nr. 5, 05.2004, S. 311-7.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Edge vulnerability in neural and metabolic networks
AU - Kaiser, Marcus
AU - Hilgetag, Claus C
PY - 2004/5
Y1 - 2004/5
N2 - Biological networks, such as cellular metabolic pathways or networks of corticocortical connections in the brain, are intricately organized, yet remarkably robust toward structural damage. Whereas many studies have investigated specific aspects of robustness, such as molecular mechanisms of repair, this article focuses more generally on how local structural features in networks may give rise to their global stability. In many networks the failure of single connections may be more likely than the extinction of entire nodes, yet no analysis of edge importance (edge vulnerability) has been provided so far for biological networks. We tested several measures for identifying vulnerable edges and compared their prediction performance in biological and artificial networks. Among the tested measures, edge frequency in all shortest paths of a network yielded a particularly high correlation with vulnerability and identified intercluster connections in biological but not in random and scale-free benchmark networks. We discuss different local and global network patterns and the edge vulnerability resulting from them.
AB - Biological networks, such as cellular metabolic pathways or networks of corticocortical connections in the brain, are intricately organized, yet remarkably robust toward structural damage. Whereas many studies have investigated specific aspects of robustness, such as molecular mechanisms of repair, this article focuses more generally on how local structural features in networks may give rise to their global stability. In many networks the failure of single connections may be more likely than the extinction of entire nodes, yet no analysis of edge importance (edge vulnerability) has been provided so far for biological networks. We tested several measures for identifying vulnerable edges and compared their prediction performance in biological and artificial networks. Among the tested measures, edge frequency in all shortest paths of a network yielded a particularly high correlation with vulnerability and identified intercluster connections in biological but not in random and scale-free benchmark networks. We discuss different local and global network patterns and the edge vulnerability resulting from them.
KW - Animals
KW - Cats
KW - Macaca
KW - Models, Neurological
KW - Nerve Net
KW - Letter
KW - Research Support, Non-U.S. Gov't
U2 - 10.1007/s00422-004-0479-1
DO - 10.1007/s00422-004-0479-1
M3 - SCORING: Journal article
C2 - 15221391
VL - 90
SP - 311
EP - 317
JO - BIOL CYBERN
JF - BIOL CYBERN
SN - 0340-1200
IS - 5
ER -