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Issue No. 01 - Jan. (2016 vol. 22)
ISSN: 1077-2626
pp: 250-259
Mengchen Liu , , Tsinghua University
Shixia Liu , , Tsinghua University
Xizhou Zhu , , USTC
Qinying Liao , , Microsoft
Furu Wei , , Microsoft
Shimei Pan , , University of Maryland, Baltimore County
Although there has been a great deal of interest in analyzing customer opinions and breaking news in microblogs, progress has been hampered by the lack of an effective mechanism to discover and retrieve data of interest from microblogs. To address this problem, we have developed an uncertainty-aware visual analytics approach to retrieve salient posts, users, and hashtags. We extend an existing ranking technique to compute a multifaceted retrieval result: the mutual reinforcement rank of a graph node, the uncertainty of each rank, and the propagation of uncertainty among different graph nodes. To illustrate the three facets, we have also designed a composite visualization with three visual components: a graph visualization, an uncertainty glyph, and a flow map. The graph visualization with glyphs, the flow map, and the uncertainty analysis together enable analysts to effectively find the most uncertain results and interactively refine them. We have applied our approach to several Twitter datasets. Qualitative evaluation and two real-world case studies demonstrate the promise of our approach for retrieving high-quality microblog data.
Uncertainty, Twitter, Tagging, Data visualization, Visual analytics, Monte Carlo methods, Data models

M. Liu, S. Liu, X. Zhu, Q. Liao, F. Wei and S. Pan, "An Uncertainty-Aware Approach for Exploratory Microblog Retrieval," in IEEE Transactions on Visualization & Computer Graphics, vol. 22, no. 1, pp. 250-259, 2016.
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