inria-00520350, version 1
Improving Random Walk Estimation Accuracy with Uniform Restarts
Konstantin Avrachenkov 1Bruno Ribeiro
a, 2Don Towsley
a, 2
N° RR-7394 (2010)
Résumé : This work proposes and studies the properties of a hybrid sampling scheme that mixes independent uniform node sampling and random walk (RW)-based crawling. We show that our sampling method combines the strengths of both uniform and RW sampling while minimizing their drawbacks. In particular, our method increases the spectral gap of the random walk, and hence, accelerates convergence to the stationary distribution. The proposed method resembles PageRank but unlike PageRank preserves time-reversibility. Applying our hybrid RW to the problem of estimating degree distributions of graphs shows promising results.
- a – University of Massachusetts Amherst
- 1 : MAESTRO (INRIA Sophia Antipolis)
- INRIA
- 2 : Department of Computer Science [Amherst]
- University of Massachusetts
- Domaine : Informatique/Réseaux et télécommunications
- Mots-clés : Sampling – Random Walk – Spectral Gap – PageRank – Online Social Network
- Référence interne : RR-7394
- inria-00520350, version 1
- http://hal.inria.fr/inria-00520350
- oai:hal.inria.fr:inria-00520350
- Contributeur : Konstantin Avrachenkov
- Soumis le : Jeudi 23 Septembre 2010, 00:45:38
- Dernière modification le : Vendredi 19 Novembre 2010, 15:40:02