IEEE/ICACT20230139 Slide.09        [Big Slide]       Oral Presentation
We can also consider Correlation Matrix with Heat Map and so on. Figure 4 shows Graphical Representation of indicator correlation which expresses the proximity of financial indicators in terms of correlation or partial-correlation in [2]. Moreover, in order to express the proximity for supporting indicator selection, we also applied Graphical Lasso method for the covariance matrix of our financial indicators.

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