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The webgraph describes the directed links between pages of the World Wide Web. A graph, in general, consists of several vertices, some pairs connected by edges. In a directed graph, edges are directed lines or arcs. The webgraph is a directed graph, whose vertices correspond to the pages of the WWW, and a directed edge connects page X to page Y if there exists a hyperlink on page X, referring to page Y.



  • The webgraph is used for computing the PageRank [5] of the WWW pages.
  • The webgraph is used for computing the personalized PageRank.[6]
  • The webgraph can be used for detecting webpages of similar topics, through graph-theoretical properties only, like co-citation [7]
  • The webgraph is applied in the HITS algorithm for identifying hubs and authorities in the web.


  1. ^ P. Erdős, A. Renyi, Publ. Math. Inst. Hung. Acad. Sci. 5 (1960)
  2. ^ R. Meusel, S. Vigna, O. Lehmberg, C. Bizer (2015): The Graph Structure in the Web - Analyzed on Different Aggregation Levels. Journal of Web Science, Vol. 1: No. 1, pp 33-47, DOI=10.1561/106.00000003 http://dx.doi.org/10.1561/106.00000003.
  3. ^ Clauset, A.; Shalizi, C. R.; Newman, M. E. J. (2007). "Power-law distributions in empirical data". SIAM Rev. (51): 661–703. doi:10.1137/070710111. 
  4. ^ Barabási, Albert-László; Albert, Réka (October 1999). "Emergence of scaling in random networks" (PDF). Science 286 (5439): 509–512. doi:10.1126/science.286.5439.509. PMID 10521342. .
  5. ^ S. Brin, L. Page, Computer Networks and ISDN Systems 30, 107 (1998)
  6. ^ Glen Jeh and Jennifer Widom. 2003. Scaling personalized web search. In Proceedings of the 12th international conference on World Wide Web (WWW '03). ACM, New York, NY, USA, 271–279. DOI=10.1145/775152.775191 http://doi.acm.org/10.1145/775152.775191
  7. ^ Ravi Kumar, Prabhakar Raghavan, Sridhar Rajagopalan, Andrew Tomkins, Trawling the Web for emerging cyber-communities, Computer Networks, Volume 31, Issues 11–16, 17 May 1999, Pages 1481–1493, ISSN 1389-1286, doi:10.1016/S1389-1286(99)00040-7.

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