PH meets ML: Designing visual interfaces for data analysis - - PowerPoint PPT Presentation

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ph meets ml designing visual interfaces for data analysis
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PH meets ML: Designing visual interfaces for data analysis - - PowerPoint PPT Presentation

Apr 07, 2024 894 likes •1.1k views

PH meets ML: Designing visual interfaces for data analysis Christoph Garth Scientific Visualization Heike Leitte Visual Information Analysis Dagstuhl Meeting on Topology Heike Leitte 20.07.17 Structure and Patterns in Spatial

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Christoph Garth – Scientific Visualization Heike Leitte – Visual Information Analysis

PH meets ML: Designing visual interfaces for data analysis

Dagstuhl Meeting on Topology – Heike Leitte – 20.07.17

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http://www.cee.ucr.edu/research/nanotech.html http://www.mpa-garching.mpg.de/galform/virgo/millennium/ http://medicine.yale.edu/cellbio/imagery/historic/light.aspx

Structure and Patterns in Spatial Data

Dagstuhl Meeting on Topology – Heike Leitte – 19.07.17

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Tabular Data

I-Cheng Yeh, "Modeling of strength of high performance concrete using artificial neural networks," Cement and Concrete Research, Vol. 28, No. 12, pp. 1797-1808 (1998).

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Example: Concrete compressive strength

Dagstuhl Meeting on Topology – Heike Leitte – 19.07.17

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Dagstuhl Meeting on Topology – Heike Leitte – 19.07.17

Challenge – Find structure in the data

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Dagstuhl Meeting on Topology – Heike Leitte – 19.07.17

Machine Learning – Overview

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http://scikit-learn.org/stable/tutorial/machine_learning_map/index.html

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What is a good DimRed method?

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Evaluating DimRed Methods

Rieck, B., & Leitte, H. (2015, June). Persistent homology for the evaluation of dimensionality reduction schemes. In Computer Graphics Forum (Vol. 34, No. 3, pp. 431-440).

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Dagstuhl Meeting on Topology – Heike Leitte – 19.07.17

HighD data descriptors

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Distance computation

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Vietoris-Rips complex

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Global quality – Swiss hole

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Global quality – Concrete compressive strength

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Structural Analysis – Concrete compr. strength

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Model Comparison – Concrete

RMSE R² PH+W

good medium poor

  • B. Rieck and H. Leitte. Enhancing Comparative Model

Analysis using Persistent Homology. IEEE Vis 2014 Workshop on Visualization for Predictive Analytics.

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Usecases § Analytical tool § Data abstraction § Interface

Topology in scientific visualization

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Volume Rendering + Tracking Graphs

Aldrich, G., Lukasczyk, J., Steptoe, M., Maciejewski, R., Leitte, H., & Hamann, B. (2016). Viscous Fingers: A topological Visual Analytic Approach. IEEE Scientific Visualization Contest, 1(2), 4.

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Volume Rendering + Tracking Graphs

Video: https://youtu.be/sTyO6N2C-x0

Lukasczyk, J., Maciejewski, R., Weber, G. H., Garth, C., & Leitte, H. (2017, January). Nested Tracking Graphs. In Computer Graphics Forum (Special Issue, Proceedings Eurographics/IEEE Symposium on Visualization) (Vol. 36, No. 3).

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Topo in Vis § Analytical tool § Data abstraction § Interface

Summary