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- University of KasselDE5 papers
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Showing 2011Show all
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math.CO2011★ 20 cited
Integral circulant graphs of prime power order with maximal energy
Jürgen W. Sander, Torsten Sander
The energy of a graph is the sum of the moduli of the eigenvalues of its adjacency matrix. We study the energy of integral circulant graphs, also called gcd graphs, which can be ch…
math.CO2011★ 4 cited
On the eigenvalues of distance powers of circuits
Jürgen W. Sander, Torsten Sander
Taking the d-th distance power of a graph, one adds edges between all pairs of vertices of that graph whose distance is at most d. It is shown that only the numbers -3, -2, -1, 0,…
cs.HC2011★ 6 cited
Probability Based Clustering for Document and User Properties
Thomas Mandl, Christa Womser-Hacker
Information Retrieval systems can be improved by exploiting context information such as user and document features. This article presents a model based on overlapping probabilistic…