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Owing to sparseness, directly clustering high-dimensional data is still a challenge problem. Therefore, obtaining their low-dimensional compact representation by dimensional reduction is an effective method for clustering high-dimensional data. Most of existing dimensionality reduction methods, however, are developed originally for classification (such as(More)
We report on efficient spin polarized injection and transport in long ͑10 2 nm͒ channels of Alq 3 organic semiconductor. We employ vertical spin valve devices with a direct interface between the bottom manganite electrode and Alq 3 , while the top-electrode geometry consists of an insulating tunnel barrier placed between the " soft " organic semiconductor(More)