Abstract
As a key problem in social network studies, identifying important nodes is useful for spreading prediction and restraint. Nowadays, many researches focus on identifying important nodes based on network structure, which is completely necessary. However, the role of a node in diffusion is simultaneously determined by network structure and diffusion characteristics. In this paper, we aim to find the contributive nodes that play important roles in influence spreading without network structure information. First, we formulize the concept of node contribution to influence diffusion to describe the importance of nodes in the spreading processes. Then, we propose an estimation framework and give the method to estimate node contribution based on diffusion samples. Accordingly, the Contribution Estimation algorithm is proposed upon the framework. Finally, we implement our algorithm and test the efficiency on two weighted social networks.
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Notes
- 1.
The datasets are public and available at http://snap.stanford.edu/data/index.html.
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Acknowledgement
This paper was supported by the Research Foundation of Educational Department of Yunnan Province (2017ZZX133), Applied Basic Research Project of Yunnan Province (Youth Program) (2015FD037), National Natural Science Foundation of China (61472345) and Research Foundation of Yunnan University (2017YDJQ06).
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Zhang, Z., Liu, L., Yue, K., Liu, W. (2018). An Estimation Framework of Node Contribution Based on Diffusion Information. In: Cai, Y., Ishikawa, Y., Xu, J. (eds) Web and Big Data. APWeb-WAIM 2018. Lecture Notes in Computer Science(), vol 10987. Springer, Cham. https://doi.org/10.1007/978-3-319-96890-2_11
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