کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
449947 693741 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Graph perturbations and corresponding spectral changes in Internet topologies
ترجمه فارسی عنوان
اختلالات گراف و تغییرات طیفی مربوط به توپولوژی های اینترنتی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
چکیده انگلیسی

Hightlights
• The physical meaning of the normalized Laplacian spectrum for the Internet.
• Graph perturbations and changes in the weighted spectral distribution.
• Graph perturbations and changes in the multiplicity of the eigenvalue 1.
• The two spectral metrics are asymptotically independent of network size.
• The two spectral metrics are a good choice for study on the Internet optimization.

The normalized Laplacian spectrum (NLS) is a powerful tool for comparing graphs with different sizes. Recently, we showed that two NLS features, namely the weighted spectral distribution (WSD) and the multiplicity of the eigenvalue 1 (ME1), are particularly relevant to the Internet topology at the inter-domain level. In this paper, we examine the physical meaning of the two metrics for the Internet. We show that the WSD reflects the transformation from single-homed nodes to multi-homed nodes for better fault-tolerance and that the ME1 quantifies the initial star-based structure associated with node classification, both of which are critical to the robustness of the Internet structure. We then investigate the relation between the metrics and graph perturbations (i.e., small changes in a graph). We show that these two NLS metrics can be a good choice for study on the Internet optimization. Our work reveals novel insights into the Internet structure and provides useful knowledge for statistical analysis on complex networks.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Communications - Volume 76, 15 February 2016, Pages 77–86
نویسندگان
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