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M. Waldner,  D. Steinböck,  E. Gröller (2020)

Interactive exploration of large time-dependent bipartite graphs

communication medium

Journal of Computer Languages

Abstract

Bipartite graphs are typically visualized using linked lists or matrices, but these visualizations neither scale well nor do they convey temporal development. We present a new interactive exploration interface for large, time-dependent bipartite graphs. We use two clustering techniques to build a hierarchical aggregation supporting different exploration strategies. Aggregated nodes and edges are visualized as linked lists with nested time series. We demonstrate two use cases: finding advertising expenses of public authorities following similar temporal patterns and comparing author-keyword co-occurrences across time. Through a user study, we show that linked lists with hierarchical aggregation lead to more insights than without.

research topic

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Keywords

Information visualization; Bipartite graphs; Clustering; Time series data; Insight-based evaluation

DOI