Information retrieval approach to meta-visualization
Peltonen, Jaakko; Lin, Ziyuan (2015)
Peltonen, Jaakko
Lin, Ziyuan
2015
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:tuni-202104223297
https://urn.fi/URN:NBN:fi:tuni-202104223297
Kuvaus
Peer reviewed
Tiivistelmä
Visualization is crucial in the first steps of data analysis. In visual data exploration with scatter plots, no single plot is sufficient to analyze complicated high-dimensional data sets. Given numerous visualizations created with different features or methods, meta-visualization is needed to analyze the visualizations together. We solve how to arrange numerous visualizations onto a meta-visualization display, so that their similarities and differences can be analyzed. Visualization has recently been formalized as an information retrieval task: we extend this approach, and formalize meta-visualization as an information retrieval task whose performance can be rigorously quantified and optimized. We introduce a machine learning approach to optimize the meta-visualization, based on an information retrieval perspective: two visualizations are similar if the analyst would retrieve similar neighborhoods between data samples from either visualization. Based on the approach, we introduce a nonlinear embedding method for meta-visualization: it optimizes locations of visualizations on a display, so that visualizations giving similar information about data are close to each other. In experiments we show such meta-visualization outperforms alternatives, and yields insight into data in several case studies.
Kokoelmat
- TUNICRIS-julkaisut [16983]