作者: 孟川杰,张福泉,罗一帆 (四川邮电职业技术学院计算机科学系;北京理工大学软件学院;四川大学计算机学院)
出处: 机床与液压 2018 第46卷 第6期 P184-192
关键词: 云计算;资源分配;非合作博弈;纳什均衡
摘要: 为解决云资源分配中用户的异构性需求问题,以经济模型为基础,运用非合作博弈论研究了具有完全理性的云资源分配问题,提出基于非合作博弈的资源分配纳什均衡算法,该算法以博弈效用最优化为目标,利用正比例共享机制按用户出价分配云资源。求解了用户的出价函数,重点证明了出价函数的凹性以及多用户间的最优出价组合的纳什 ...
作者: 赵军辉,吴玉峰,胡坤融,蒲斌 (临沂大学(沂水校区)计算机系;北京理工大学软件学院;西南林业大学计算机与信息学院;西华师范大学计算机学院)
出处: 计算机科学 2018 第2期 P297-300
关键词: 低照度;彩色图像增强;Lab色彩空间;色调映射;Retinex;色彩偏移
摘要: 针对低照度图像对比度增强处理中的细节保留和色彩恒常问题,提出一种新颖的基于Lab色彩空间和色调映射的Retinex图像对比增强算法。首先,在Lab色彩空间中将一个低对比度的输入图像分解成亮度和色度分量,并使用自适应双边滤波估计照明的强度,以便根据亮度和颜色值来考虑合适的相邻像素。然后利用基于抛物线的 ...
作者: 仲宝才1;张福泉2;徐琳3; (1成都东软学院计算机科学与技术系;2北京理工大学软件学院;3福建师范大学创新信息产业研究所)
出处: 计算机工程与设计 2018 第39卷 第10期 P3201-3207
关键词: 图像检索;非负矩阵分解;视觉多样性;标签图像矩阵;正则项优化
摘要: 为解决图像检索中视觉特征与语义概念间的语义鸿沟现象,导致其检索不准确的问题,设计非负矩阵分解耦合视觉多样性的图像检索算法。对图像进行非负矩阵分解(non-negative matrix factorization,NMF),得到图像的基矩阵与系数矩阵;在NMF过程中嵌入整体视觉多样性,利用图像之间的 ...
作者: 张漪墁,赵小林 (北京理工大学软件学院)
出处: 中国科技论文在线精品论文 2018 第11卷 第4期 P328-338
关键词: 计算机软件;网络安全;层次分析法;攻击图;PageRank算法;度量与评估
摘要: 网络安全问题日益严重,解决网络安全问题的前提是必须能够对网络安全进行评估和度量.本研究对层次分析法、基于攻击图生成系统的攻击图模型及其PageRank算法进行详细的分析和对比.在综合层次分析法和攻击图模型两者优势的基础上提出一种新的网络安全度量与评估模型——综合多层次创新模型.该模型不仅从技术手段上 ...
作者: Wang, Mei1; Zhai, Ke1; Liu, Chi Harold2, 3; Li, Yujie4 (1School of Electrical and Control Engineering, Xi'an University of Science and Technology, Xi'an, China;2School of Software, Beijing Institute of Technology, China;3Department of Computer Information and Security, Sejong University, Korea, Republic of;4School of Information Engineering, Yangzhou University, Yangzhou; 225127, China)
出处: Wireless Communications and Mobile Computing 2018
作者: Lin, Xiao Jia1; Zhang, Fu Quan2; Xu, Lin3 (1Department of Computing and Information Technology, Fujian Business University, No. 19 Huang Pu Road, Gulou District, Fuzhou; 350012, China;2Fujian Provincial Key Laboratory of Information Processing and Intelligent Control, Minjiang University, School of Software, Beijing Institute of Technology, Room A9. 301, Juyuan, Jinshan, Jiyuan, Fuzhou; 350008, China;3Innovative Information Industry Research Institute, Fujian Normal University, Fuqing Brunch of Fujian Normal University, Campus County 1., Longjiang Road, Fuqing, Fuzhou; 350300, China)
出处: Journal of Information Hiding and Multimedia Signal Processing 2018 Vol.9 No.1 P244-255
作者: Zhang, Fu-Quan1, 2; Mao, Zi-Jing3; Huang, Yu-Fei3; Xu, Lin4; Ding, Gang Yi5 (1Fujian Provincial Key Laboratory of Information Processing and Intelligent Control, Minjiang University, Fuzhou, China;2School of Software, Beijing Institute of Technology, Room A9-301, Juyuan, Jinshan, Jiyuan, Fuzhou; 350008, China;3Department of Electronic Engineering, University of Texas at San Antonio, One UTSA Circle, San Antonio Arrow Oaks 126, San Antonio; TX; 78249, United States;4Innovative Information Industry Research Institute, Fujian Normal University, Fuqing Brunch of Fujian Normal University, Campus County 1, Longjiang Road, Fuqing; Fuzhou; 350300, China;5School of Software, Beijing Institute of Technology, Room 611, Software Building, 5 South Zhongguancun Street, Haidian, Beijing; 100081, China)
出处: Journal of Information Hiding and Multimedia Signal Processing 2018 Vol.9 No.1 P177-187
作者: Wang, Mei1; Zhu, Liang1; Zhang, Guoqiang1; Wang, Liang1; Liu, Chi2 (1Institute of Electrical and Control Engineering, Xi'an University of Science and Technology, Xi'an; 710054, China;2School of Software, Beijing Institute of Technology, Beijing; 100081, China)
出处: Zhendong Ceshi Yu Zhenduan/Journal of Vibration, Measurement and Diagnosis 2018 Vol.38 No.3 P479-485
作者: Liu, Zhenyan1; Zeng, Yifei1; Zhang, Pengfei1; Xue, Jingfeng1; Zhang, Ji1; Liu, Jiangtao1 (1Beijing Key Laboratory of Software Security Engineering Technology, School of Software, Beijing Institute of Technology, Beijing; 100081, China)
出处: Security and Communication Networks 2018
作者: Wang, Xiajing1; Ma, Rui1; Dou, Bowen1; Jian, Zefeng1; Chen, Hongzhou1 (1Beijing Key Laboratory of Software Security Engineering Technology, School of Software, Beijing Institute of Technology, Beijing; 100081, China)
出处: Security and Communication Networks 2018