Abstract
Recently, there has been a surge of research activity in the area of Link Analysis Ranking, where hyperlink structures are used to determine the relative authority of Web pages. One of the seminal works in this area is that of Kleinberg [15], who proposed the Hits algorithm. In this paper, we undertake a theoretical analysis of the properties of the Hits algorithm on a broad class of random graphs. Working within the framework of Borodin et al.[7], we prove that on this class (a) the Hits algorithm is stable with high probability, and (b) the Hits algorithm is similar to the InDegree heuristic that assigns to each node weight proportional to the number of incoming links. We demonstrate that our results go through for the case that the expected in-degrees of the graph follow a power-law distribution, a situation observed in the actual Web graph [9]. We also study experimentally the similarity between Hits and InDegree, and we investigate the general conditions under which the two algorithms are similar.
Partially supported by the EU under contract 001907 (DELIS) and 33555 (COSIN), and by the Italian MIUR under contract ALGO-NEXT.
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Donato, D., Leonardi, S., Tsaparas, P. (2005). Stability and Similarity of Link Analysis Ranking Algorithms. In: Caires, L., Italiano, G.F., Monteiro, L., Palamidessi, C., Yung, M. (eds) Automata, Languages and Programming. ICALP 2005. Lecture Notes in Computer Science, vol 3580. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11523468_58
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DOI: https://doi.org/10.1007/11523468_58
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