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Link Prediction based on Structural Properties of Online Social Networks

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Abstract

Question-Answering Bulletin Boards (QABB), such as Yahoo! Answers and Windows Live QnA, are gaining popularity recently. Questions are submitted on QABB and let somebody in the internet answer them. Communications on QABB connect users, and the overall connections can be regarded as a social network. If the evolution of social networks can be predicted, it is quite useful for encouraging communications among users. Link prediction on QABB can be used for recommendation to potential answerers.

Previous approaches for link prediction based on structural properties do not take weights of links into account. This paper describes an improved method for predicting links based on weighted proximity measures of social networks. The method is based on an assumption that proximities between nodes can be estimated better by using both graph proximity measures and the weights of existing links in a social network. In order to show the effectiveness of our method, the data of Yahoo! Chiebukuro (Japanese Yahoo! Answers) are used for our experiments. The results show that our method outperforms previous approaches, especially when target social networks are sufficiently dense.

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Correspondence to Tsuyoshi Murata.

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Murata, T., Moriyasu, S. Link Prediction based on Structural Properties of Online Social Networks. New Gener. Comput. 26, 245–257 (2008). https://doi.org/10.1007/s00354-008-0043-y

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  • DOI: https://doi.org/10.1007/s00354-008-0043-y

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