Chun-Yen Ho

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This paper describes the solution of National Taiwan University for track 2 of KDD Cup 2012. Track 2 of KDD Cup 2012 aims to predict the click-through rate of ads on Tencent proprietary search engine. We exploit classification, regression, ranking, and factorization models to utilize a variety of different signatures captured from the dataset. We then blend(More)
Contract bridge is an example of an incomplete information game for which computers typically do not perform better than expert human bridge players. In particular, the typical bidding decisions of human bridge players are difficult to mimic with a computer program, and thus automatic bridge bidding remains to be a challenging research problem. Currently,(More)
and Applied Analysis 3 −0.4 −0.3 −0.2 −0.1 0 0.1 0.2 0.3 0.4 −1.5 −1 −0.5 0 0.5 1 1.5 x1 x 2 Figure 1: Phase portrait of the chaotic YangHenon map system with a1 1.4, b1 0.3. where a1 1.4, b1 0.3 and positive argument n1 0, 1, 2, 3, . . . , n. The Yang chaotic behaviors of Henon map system are quoted 19 by phase portraits in Figure 1. The Henon map system(More)
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