Indented pixel tree browser for exploring huge hierarchies

摘要: In this paper we introduce the Indented Pixel Tree Browser--an interactive tool for exploring, annotating, and comparing huge hierarchical structures on different levels of granularity.We exploit indented visual metaphor to map tree one-dimensional zigzag curves primarily achieve an overview representation entire hierarchy. We focus space-efficiency simultaneous uncovering tree-specific phenomena. Each displayed plot can be filtered substructures that are mapped a larger space hence, unhide more fine-granular hidden in compressed overview. By representing side-by-side, viewer easily compare them visually detect similar patterns also anomalies. our approach, follow information seeking mantra: first, zoom filter, then details-on-demand. More features such as expanding collapsing nodes, applying color codings, or distorting horizontally well vertically support when exploring data sets. The usefulness browsing is demonstrated case study NCBI taxonomy contains 324,276 species organisms hierarchically organized.