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第26届中国控制与决策会议

作者： Xin WANG Zhi-gang LIU Jin-kuan WANG Bin WANG Xi HU College of Information Science and Engineering Northeastern University School of Information & Control Engineering Shenyang Jianzhu University

ISBN: (纸本)9781479937097

Aiming to the problem of weak primary user signal detection rate in low signal-to-noise ratio environments, we propose a novel spectrum sensing method based on the principal component analysis（PCA） and random forest.RF）. From the received radio signal, a set of cyclic spectrum features are first calculated, and the PCA is applied to extract the most discriminate feature vector for classification. Furthermore, the detecting signal is classified by the trained random forest.to test whether the primary user exists. Compares with MME, SVM, RF, our proposed algorithm is evaluated through simulations. Experimental results show that the performance of our proposed algorithm is much better than compared algorithms in low signal-to-noise ratio environments.

关键词： Cognitive network Spectrum sensing Principal component analysis random forest.

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Verifying the Authorship of the Yasunari Kawabata Novel The Sound of the Mountain

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Journal of Mathematics and System Science 2017年第5期7卷 127-141页

作者： Hao Sun Mingzhe Jin Graduate School of Culture and Information Science Doshisha University Japan. Faculty of Culture and Information Science Doshisha University Japan and Ludong University China.

Yasunari Kawabata was a famous Japanese novelist and the winner of the 1968 Nobel Prize for Literature. However, considerable debate has persisted concerning the authorship of one of his novels, The Sound of the Mountain, with some claiming that it was in fact written by another celebrated author, Yukio Mishima. In this research, we attempt to resolve this issue by applying character bigrams, part-of-speech bigrams, and phrase patterns as stylometric features, and principal component analysis, hierarchical cluster analysis, and random forest. as authorship attribution methods. As a result, we obtained compelling evidence to show that Yukio Mishima was not the author of The Sound of the Mountain.

关键词： Yasunari Kawabata ghostwriter authorship attribution principal component analysis cluster analysis random forest.

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