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In this paper, we describe the stochastic semi-supervised learning approach that we used in our submission to all six tasks in 2009-2010 Active Learning Challenge. The method is designed to tackle the binary classification problem under the condition that the number of labeled data points is extremely small and the two classes are highly imbalanced. It(More)
This paper proposes an autonomous train control system based on inter-train communication. In this new system, there is no logical central device and trains can communicate with each other autonomously. The train itself produces the position and calculates the permitted track speed. Therefore, the distance between trains can be shortened and a smooth brake(More)
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