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Distance between Extremum Graphs

Narayanan, Vidya and Thomas, Dilip Mathew and Natarajan, Vijay (2015) Distance between Extremum Graphs. In: IEEE Pacific Visualization Symposium (PacificVis), APR 14-17, 2015, Hangzhou, PEOPLES R CHINA, pp. 263-270.

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Official URL: http://dx.doi.org/10.1109/PACIFICVIS.2015.7156386

Abstract

Scientific phenomena are often studied through collections of related scalar fields generated from different observations of the same phenomenon. Exploration of such data requires a robust distance measure to compare scalar fields for tasks such as identifying key events and establishing correspondence between features in the data. Towards this goal, we propose a topological data structure called the complete extremum graph and define a distance measure on it for comparing scalar fields in a feature-aware manner. We design an algorithm for computing the distance and show its applications in analysing time varying data.

Item Type: Conference Proceedings
Additional Information: Copy right of this article belongs to the IEEE
Department/Centre: Division of Interdisciplinary Research > Supercomputer Education & Research Centre
Depositing User: Id for Latest eprints
Date Deposited: 08 Oct 2016 07:22
Last Modified: 08 Oct 2016 07:22
URI: http://eprints.iisc.ac.in/id/eprint/54781

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