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5,949 results on '"ZHOU Shi"'

252. A Heuristic Optimal Discrete Bit Allocation Algorithm for Margin Maximization in DMT Systems

Author

Dong Shi-Wei, Zhu Li-Ping, Yao Yan, and Zhou Shi-Dong

Subjects
Telecommunication, TK5101-6720, Electronics, TK7800-8360
Abstract

A heuristic optimal discrete bit allocation algorithm is proposed for solving the margin maximization problem in discrete multitone (DMT) systems. Starting from an initial equal power assignment bit distribution, the proposed algorithm employs a multistaged bit rate allocation scheme to meet the target rate. If the total bit rate is far from the target rate, a multiple-bits loading procedure is used to obtain a bit allocation close to the target rate. When close to the target rate, a parallel bit-loading procedure is used to achieve the target rate and this is computationally more efficient than conventional greedy bit-loading algorithm. Finally, the target bit rate distribution is checked, if it is efficient, then it is also the optimal solution; else, optimal bit distribution can be obtained only by few bit swaps. Simulation results using the standard asymmetric digital subscriber line (ADSL) test loops show that the proposed algorithm is efficient for practical DMT transmissions.

Published
2007

263. Simulation and No-Load Operation Characteristics Analysis of New 0.18 mm Oriented Silicon Steel Laminated Core Joint

Author

Zhou, Shi, Gong, Weiguo, Wang, Ziang, Cheng, Ling, Ma, Guang, Zhang, Yukuo, Pan, Gaoyang, Wang, Shuhong, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, He, Jinghan, editor, Li, Yaohua, editor, Yang, Qingxin, editor, and Liang, Xidong, editor

Published
2022
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264. Optimal Design of Coupling Coils for Wireless Power Transfer System Featuring High Misalignment Tolerance

Author

Zhang, Yukuo, Zhang, Naming, Pan, Gaoyang, Yang, Bin, Zhou, Shi, Wang, Shuhong, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Yang, Qingxin, editor, Liang, Xidong, editor, Li, Yaohua, editor, and He, Jinghan, editor

Published
2022
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274. Innovative Delivery System Combining CRISPR-Cas12f for Combatting Antimicrobial Resistance in Gram-Negative Bacteria

Author

Long, Teng-Fei, primary, Zhou, Shi-Ying, additional, Huang, Zi-Lei, additional, Li, Gong, additional, Zhong, Qin, additional, Zhang, Xiao-Jing, additional, Li, Yuan-Yuan, additional, Chen, Cai-Ping, additional, Xia, Li-Juan, additional, Wei, Ran, additional, Wan, Lei, additional, Gao, Ang, additional, Ren, Hao, additional, Liao, Xiao-Ping, additional, Liu, Ya-Hong, additional, Chen, Liang, additional, and Sun, Jian, additional

Published
2024
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278. LOBO -- Evaluation of Generalization Deficiencies in Twitter Bot Classifiers

Author

Echeverría, Juan, De Cristofaro, Emiliano, Kourtellis, Nicolas, Leontiadis, Ilias, Stringhini, Gianluca, and Zhou, Shi

Subjects
Computer Science - Cryptography and Security, Computer Science - Social and Information Networks
Abstract

Botnets in online social networks are increasingly often affecting the regular flow of discussion, attacking regular users and their posts, spamming them with irrelevant or offensive content, and even manipulating the popularity of messages and accounts. Researchers and cybercriminals are involved in an arms race, and new and updated botnets designed to defeat current detection systems are constantly developed, rendering such detection systems obsolete. In this paper, we motivate the need for a generalized evaluation in Twitter bot detection and propose a methodology to evaluate bot classifiers by testing them on unseen bot classes. We show that this methodology is empirically robust, using bot classes of varying sizes and characteristics and reaching similar results, and argue that methods trained and tested on single bot classes or datasets might not able to generalize to new bot classes. We train one such classifier on over 200,000 data points and show that it achieves over 97% accuracy. The data used to train and test this classifier includes some of the largest and most varied collections of bots used in literature. We then test this theoretically sound classifier using our methodology, highlighting that it does not generalize well to unseen bot classes. Finally, we discuss the implications of our results, and reasons why some bot classes are easier and faster to detect than others.

Published
2018

282. Overproduction of OsRACK1A, an effector-targeted scaffold protein promoting OsRBOHB-mediated ROS production, confers rice floral resistance to false smut disease without yield penalty

Author

Li, Guo-Bang, He, Jia-Xue, Wu, Jin-Long, Wang, He, Zhang, Xin, Liu, Jie, Hu, Xiao-Hong, Zhu, Yong, Shen, Shuai, Bai, Yi-Fei, Yao, Zong-Lin, Liu, Xin-Xian, Zhao, Jing-Hao, Li, De-Qiang, Li, Yan, Huang, Fu, Huang, Yan-Yan, Zhao, Zhi-Xue, Zhang, Ji-Wei, Zhou, Shi-Xin, Ji, Yun-Peng, Pu, Mei, Qin, Peng, Li, Shigui, Chen, Xuewei, Wang, Jing, He, Min, Li, Weitao, Wu, Xian-Jun, Xu, Zheng-Jun, Wang, Wen-Ming, and Fan, Jing

Published
2022
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