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VEGAS: Visual influEnce GrAph Summarization on Citation Networks

VEGAS: Visual influEnce GrAph Summarization on Citation Networks

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VEGAS: Visual influEnce GrAph Summarization on Citation Networks

 Visually analyzing citation networks poses challenges to many fields of the data mining research. How can we summarize a large citation graph according to the user’s interest In particular, how can we illustrate the impact of a highly influential paper through the summarization Can we maintain the sensory node-link graph structure while revealing the flow-based influence patterns and preserving a fine readability The state-of-the-art influence maximization algorithms can detect the most influential node in a citation network, but fail to summarize a graph structure to account for its influence. On the other hand, existing graph summarization methods fold large graphs into clustered views, but cannot reveal the hidden influence patterns underneath the citation network. We first formally define the Influence Graph Summarization problem on citation networks. Second, we propose a matrix decomposition based algorithm pipeline to solve the IGS problem. Our method can not only highlight the flow-based influence patterns, but also easily extend to support the rich attribute information. A prototype system called VEGAS implementing this pipeline is also developed. Third, we present a theoretical analysis on our main algorithm, which is equivalent to the kernel k-mean clustering. It can be proved that the matrix decomposition based algorithm can approximate the objective of the proposed IGS problem. Last, we conduct comprehensive experiments with real-world citation networks to compare the proposed algorithm with classical graph summarization methods. Evaluation results demonstrate that our method significantly outperforms the previous ones in optimizing both the quantitative IGS objective and the quality of the visual summarizations.


 


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  • Model: PROJ5397
  • 999 Units in Stock
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This product was added to our catalog on Monday 19 September, 2016.

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