Please use this identifier to cite or link to this item: https://doi.org/10.1145/1166253.1166264
Title: Viz: A visual analysis suite for explaining local search behavior
Authors: Halim, S. 
Yap, R.H.C. 
Lau, H.C. 
Keywords: Local search
Program visualization
Issue Date: 2008
Source: Halim, S.,Yap, R.H.C.,Lau, H.C. (2008). Viz: A visual analysis suite for explaining local search behavior. UIST 2006: Proceedings of the 19th Annual ACM Symposium on User Interface Software and Technology : 57-66. ScholarBank@NUS Repository. https://doi.org/10.1145/1166253.1166264
Abstract: NP-hard combinatorial optimization problems are common in real life. Due to their intractability, local search algorithms are often used to solve such problems. Since these algorithms are heuristic-based, it is hard to understand how to improve or tune them. We propose an interactive visualization tool, Viz, meant for understanding the behavior of local search. Viz uses animation of abstract search trajectories with other visualizations which are also animated in a VCR-like fashion to graphically playback the algorithm behavior. It combines generic visualizations applicable on arbitrary algorithms with algorithm and problem specific visualizations. We use a variety of techniques such as alpha blending to reduce visual clutter and to smooth animation, highlights and shading, automatically generated index points for playback, and visual comparison of two algorithms. The use of multiple viewpoints can be an effective way of understanding search behavior and highlight algorithm behavior which might otherwise be hidden. Copyright 2006 ACM.
Source Title: UIST 2006: Proceedings of the 19th Annual ACM Symposium on User Interface Software and Technology
URI: http://scholarbank.nus.edu.sg/handle/10635/43239
ISBN: 1595933131
DOI: 10.1145/1166253.1166264
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