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- W1966342313 abstract "The lack of a sampling frame (i.e., a complete list of users) for most Online Social Networks (OSNs) makes sampling methods especially difficult. Thus, reliable and efficient sampling methods are essential for practical estimation of OSN properties. Recent work in this area has thus focused on sampling methods that allow precise inference from a relatively large-scale social networks such as Facebook. We propose a sampling method on OSNs, based on a Metropolis-Hastings Random Walk (MHRW) algorithm. In this regard, we have developed a social explorer in order to collect random samples from Facebook. In addition, we address the question whether different probability distributions may be able to alter the behavior of the MHRW and enhance the effectiveness of yielding a representative sample. Thus, in this paper, we seek to understand whether the MHRW algorithm can be exploited by switching the random generator to provide better results. We evaluated the performance of our MHRW algorithm providing a descriptive statistics of the collected data. Moreover, we sketch the collecting procedure carried out on Facebook in real-time. Finally, we provide a formal convergence analysis to evaluate whether the sample of draws has attained an equilibrium state to get a rough estimate of the sample quality." @default.
- W1966342313 created "2016-06-24" @default.
- W1966342313 creator A5076389260 @default.
- W1966342313 creator A5080686663 @default.
- W1966342313 date "2013-10-01" @default.
- W1966342313 modified "2023-09-27" @default.
- W1966342313 title "Collecting Random Samples from Facebook: An Efficient Heuristic for Sampling Large and Undirected Graphs via a Metropolis-Hastings Random Walk" @default.
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- W1966342313 doi "https://doi.org/10.1109/smc.2013.384" @default.
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