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Hoong Chuin Lau

 

Publications by Hoong Chuin Lau (bibliography)

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2008
 
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Lau, Hoong Chuin, Zhao, Zhengyi John, Ge, Shuzhi Sam and Lee, Tong Heng (2008): Utility pricing auction for multi-period resource allocation in multi-machine flow shop problems. In: Fensel, Dieter and Werthner, Hannes (eds.) Proceedings of the 10th International Conference on Electronic Commerce - ICEC 2008 August 19-22, 2008, Innsbruck, Austria. p. 5. Available online

 
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Park, Jong Han, Lee, Jae Kyu and Lau, Hoong Chuin (2008): Relationship preserving auction for repeated e-procurement. In: Fensel, Dieter and Werthner, Hannes (eds.) Proceedings of the 10th International Conference on Electronic Commerce - ICEC 2008 August 19-22, 2008, Innsbruck, Austria. p. 35. Available online

2006
 
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Halim, Steven, Yap, Roland H. C. and Lau, Hoong Chuin (2006): Viz: a visual analysis suite for explaining local search behavior. In: Proceedings of the ACM Symposium on User Interface Software and Technology 2006. pp. 57-66. Available online

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.

© All rights reserved Halim et al. and/or ACM Press

 
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