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Dimensionality reduction of clustered data sets

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Figure

Fig. 1. Experimental results. (a) Toy data: The solid dotted line represents the first principal direction of the data; the solid line is the initialization (obtained using k-meansfollowed by Fisher’s discriminant); the dashed and dotted line gives the max
Fig. 3. Visualization results for the USPS digits data set: (a) Projection given by our model, (b) projection given by PCA, and (c) projection given by supervised LDA.

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