Visualization method and visualization system
First Claim
1. Method for generating visual representations of multidimensional data domains, which method comprises the steps of:
- selecting data to be visualized from at least one data source, and choosing the number of dimensions to be used in the visualization, characterized in that the method further comprises the steps of;
constructing a set of probabilistic models, generating a set of predictive distributions from said set of probabilistic models, and using at least one predictive distribution belonging to said set of predictive distributions, determining a visual location for each data vector to be visualized.
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Abstract
A method and system for transforming a multivariate data domain into a low-dimensional visual representation. Probabilistic models of the data domain are utilized, and at least one probabilistic model is used to produce at least one predictive distribution. The predictive distributions are used as inputs to the visualization process, where the multidimensional space is converted to a low-dimensional space. In this process data vectors are considered similar, for example, if the corresponding instances of a predictive distribution, conditioned with the variable value assignments found in the data vectors, are similar. Consequently, similarity is not defined directly using the physical properties of the data vectors, but indirectly through the probabilistic predictive model(s).
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Citations
35 Claims
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1. Method for generating visual representations of multidimensional data domains, which method comprises the steps of:
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selecting data to be visualized from at least one data source, and choosing the number of dimensions to be used in the visualization, characterized in that the method further comprises the steps of;
constructing a set of probabilistic models, generating a set of predictive distributions from said set of probabilistic models, and using at least one predictive distribution belonging to said set of predictive distributions, determining a visual location for each data vector to be visualized. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A visualization system, which comprises means for receiving data to be visualized, characterized in that it further comprises
means for constructing a set of probabilistic models using predetermined probabilistic model structures, means for generating a set of predictive distributions from said set of probabilistic models, means for determining, using at least one predictive distribution belonging to said set of predictive distributions, visual locations for data vectors, which constitute at least part of the data to be visualized, and means for producing a visualization using said visual locations.
Specification