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- W2888349662 abstract "Abstract Dimension reduced projections approximate the high-dimensional distribution by accommodating data in a low-dimensional space. They generate good overviews, but can hardly meet the needs of local relational/dimensional data analyses. On the one hand, layout distortions in linear projections largely harm the perception of local data relationships. On the other hand, non-linear projections seek to preserve local neighborhoods but at the expense of losing dimensional contexts. A sole projection is hardly enough for local analyses with different focuses and tasks. In this paper, we propose an interactive exploration scheme to help users customize a linear projection based on their point of interests (POIs) and analytic tasks. First, users specify their POI data interactively. Then regarding different tasks, various projections and subspaces are recommended to enhance certain features of the POI. Furthermore, users can save and compare multiple POIs and navigate their explorations with a POI map. Via case studies with real-world datasets, we demonstrate the effectiveness of our method to support high-dimensional local data analyses." @default.
- W2888349662 created "2018-08-31" @default.
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- W2888349662 date "2018-10-01" @default.
- W2888349662 modified "2023-09-24" @default.
- W2888349662 title "Exploring high-dimensional data through locally enhanced projections" @default.
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- W2888349662 doi "https://doi.org/10.1016/j.jvlc.2018.08.006" @default.
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