Mr. Kaiyu Zhao Profile

Kaiyu Zhao

at Worcester Polytechnic Institute

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Proceedings Article | 3 February 2014 Paper

Progressively consolidating historical visual explorations for new discoveries

Kaiyu Zhao, Matthew Ward, Elke Rundensteiner, Huong Higgins

Proceedings Volume 9017, 90170T (2014) https://doi.org/10.1117/12.2041342

KEYWORDS: Data modeling, Visualization, Systems modeling, Visual process modeling, Autoregressive models, Data analysis, Process modeling, Data mining, Statistical modeling, Decision support systems

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A significant task within data mining is to identify data models of interest. While facilitating the exploration tasks, most visualization systems do not make use of all the data models that are generated during the exploration. In this paper, we introduce a system that allows the user to gain insights from the data space progressively by forming data models and consolidating the generated models on the fly. Each model can be a a computationally extracted or user-defined subset that contains a certain degree of interest and might lead to some discoveries. When the user generates more and more data models, the degree of interest of some portion of some models will either grow (indicating higher occurrence) or will fluctuate or decrease (corresponding to lower occurrence). Our system maintains a collection of such models and accumulates the interestingness of each model into a consolidated model. In order to consolidate the models, the system summarizes the associations between the models in the collection and identifies support (models reinforce each other), complementary (models complement each other), and overlap of the models. The accumulated interestingness keeps track of historical exploration and helps the user summarize their findings which can lead to new discoveries. This mechanism for integrating results from multiple models can be applied to a wide range of decision support systems. We demonstrate our system in a case study involving the financial status of US companies.

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