检索结果-内蒙古大学图书馆

2011 2nd International Conference on Management science and engineering(MSE 2011)

作者： Anqiong Tang Wenan Tan Guosheng Zhu Chuanqun Jiang Yu Yan School of Computer and Information Shanghai Second Polytechnic University School of Computer Sci.& Tech. Nanjing Univ.of Aeronautics and Astronautics

Knowledge management tech.ology owns the ever-increasing potential dealing with modern information, which is accompanied by the powerful collaborative tech.ology enabling cooperation with multiple par

关键词：

来源：评论

学校读者我要写书评

暂无评论

A robust cluster validity index for fuzzy c-means clustering

A robust cluster validity index for fuzzy c-means clustering

引用

2011 International Conference on Transportation, Mechanical, and Electrical engineering, TMEE 2011

作者： Hu, Yating Zuo, Chuncheng Yang, Yang Qu, Fuheng School of Mechanical Science and Engineering Jilin University Changchun China School of Information and Technology Jilin Agriculture University Changchun China School of Computer Science and Technology Changchun Univ. of Sci. and Tech. Changchun China

ISBN: (纸本)9781457717017

Fuzzy c-means clustering algorithm (FCM) is one of the mostly used clustering algorithms. Although several cluster validity have been proposed to execute FCM as unsupervised clustering algorithm, the performance of FCM and its validity index is deeply influenced by the noises and outliers. To solve such problem, a robust cluster validity for FCM is proposed in this paper. The proposed index consists of two terms, i.e., compactness and separation measure. The compactness measure is determined by the fuzzy membership matrix and the cluster number, which indicates the compactness within a cluster. The separation measure is defined as the distance of the different fuzzy sets, which indicates the separability of different clusters. The proposed validity is compared with typical cluster validity indices on six data sets, including two real and four artificial data sets. The experimental results show the effectiveness of the proposed index. © 2011 IEEE.

关键词： Fuzzy clustering

来源：评论

学校读者我要写书评

暂无评论

A cluster validity index for fuzzy c-means clustering

A cluster validity index for fuzzy c-means clustering

引用

2011 International Conference on System science, engineering Design and Manufacturing Informatization, ICSEM 2011

ISBN: (纸本)9781457702471

This paper presents a new validity index for validation of the fuzzy partitions generated by the fuzzy c-means algorithm. The proposed validity index is based on the compactness and separation measure. The compactness measure is defined as the weighted square deviation of the intra cluster, and the separation measure is defined as the distance for the different fuzzy sets. There are high expectations of a large degree compactness and separation among clusters for a good fuzzy partition. The contrast experimental results with various indices show that the proposed index is more robust to the noise and can identify clusters with different densities and sizes. © 2011 IEEE.

关键词： Fuzzy clustering

来源：评论

学校读者我要写书评

暂无评论

Bayesian Network Based Cooperative Area Coverage Searching for UAVs

Bayesian Network Based Cooperative Area Coverage Searching f...

引用

2011 International Conference on Frontiers in computer Education(ICFCE 2011)

作者： Wenqiang Guo Zoe Zhu Yongyan Hou School of Electrical and Information Engineering Shaanxi Univ.of Sci.and Tech. School of Computer Science University of Guelph

To resolve the issue of cooperative searching in a given area by a team of heterogeneous UAVs, taking into account their different sensing and range capabilities, based on Bayesian network, this paper contributes a hierarchical structure for cooperative UAVs search mission area decomposition systemA novel multiple UAV cooperative search area decomposition algorithm based on proposed UAV working capability evaluation Bayesian network is also proposedThe ability of coping with uncertainty, which makes this approach notably appealing for real-time implementation, is empirically verified by simulationsThe experimental results demonstrate that the presented approach is effective and efficient in the multiple UAVs cooperative search area decomposition problem.

关键词： Capability evaluation Bayesian network cooperative search area decomposition

来源：评论

学校读者我要写书评

暂无评论

Study on the toxicity and organic load of coated white board effluents

Study on the toxicity and organic load of coated white board...

引用

International Conference on computer Distributed Control and Intelligent Environmental Monitoring (CDCIEM)

作者： He, Yixin Zhao, Yu Lei, Xiaochun Xue, Guoxin Tang, Yanjun Jin, Hang College of Material and Textiles Zhejiang Sci.-Tech. University Hangzhou 310018 China Key Laboratory of Advanced Textile Materials and Manufacturing Technology Ministry of Education Zhejiang Sci.-Tech. University Hangzhou 310018 China Jiangsu Provincial Key Laboratory of Pulp and Paper Science and Technology Nanjing Forestry University Nanjing 210037 China School of Printing Engineering Hangzhou DianZi University Hangzhou 310018 China Engineering Research Center for Eco-Dyeing and Finishing of Textiles Ministry of Education Hangzhou 310018 China

ISBN: (纸本)9780769543505

With the rapid development of secondary fiber industry, more and more attention to the pollution discharge from its effluents and sludge were caused. The toxicity studies on coated white board effluents of secondary fiber were carried out by using optimized photo bacteria method. The results showed that the value of EC50 for acute toxicity in coated white board effluents, which were produced from liners effluents and compositive effluents, were 85.50% and 89.77% respectively, reached the level of Moderately Toxic, by contraries from barrier coating effluents, was 157.57%, belong to Non-Toxic Class. As far as a total organic load is concerned, the value were 63.120 kgCODcr/t paper, and the total TEF were 33.42 TU m3/t paper approximately, as well as equivalently 3.342g HgCl2/t papaer. Therefore, it should be pay more attention to the toxicity and toxicity emission load of coated white board effluents. © 2011 IEEE.

关键词： Toxicity

来源：评论

学校读者我要写书评

暂无评论

Representation and reduction of decision system based on semantics of extended propositional modal logic

引用

Journal of Computational Information Systems 2011年第11期7卷 4071-4081页

作者： Zhang, Xiaoru Zhang, Zaiyue Cao, Cungen Huang, Zhisheng School of computer Science and Engineering of Jiangsu University of Sci. and Tech. China Institute of Computing Technology The Chinese Academy of Science Beijing 100190 China The Department of Artificial Intelligence Vrije University of Amsterdam Netherlands

To direct at the characteristic of the decision system based on Rough set theory, the proposition modal logic is extended by adding the attribute constants as the basic symbols, and the formal system of the extended propositional modal logic as well as its semantics are described. Since every decision system based on Rough set theory can be expressed by a decision system based on the semantics of extended modal logic, the problem about the reduction of decision system based on Rough set theory can be transformed to be the problem of that based on modal logic semantics. In this article, the semantics of the extended propositional modal logic is studied by using the method of granular computing, the representation method of the semantic objects in the formal system is given, and also the coding mechanism of possible word is established. Take advantage of the possible word code, the notion of the discernibility code is defined and based on which the reduction algorithm based on modal logic semantics is given. Know from other reduction algorithms, the algorithm based on modal logic semantics can make the reduction both for attribute and value of attribute. Copyright © 2011 Binary Information Press.

关键词： Semantics

来源：评论

学校读者我要写书评

暂无评论

A cluster validity index for fuzzy c-means clustering

A cluster validity index for fuzzy c-means clustering

引用

International Conference on System science, engineering Design and Manufacturing Informatization (ICSEM)

作者： Yating Hu Chuncheng Zuo Yang Yang Fuheng Qu School of Information and Technology Jilin Agriculture University Changchun China School of Mechanical Science and Engineering Jilin University Changchun China School of Computer Science and Technology Changchun Univ. of Sci. and Tech. Changchun China

关键词： Iris recognition Indexes Principal component analysis

来源：评论

学校读者我要写书评

暂无评论

Influence of stochastic delay contaminations on IP network coordinate system and contamination mitigation methods

引用

Tongxin Xuebao/Journal on Communications 2011年第12期32卷 29-35页

作者： Zhang, Min Zhou, Liang Huang, Qiong Yang, Xiao-Long Long, Ke-Ping School of Computer and Comm. Engineering Beijing University of Science and Technology Beijing 100083 China School of Comm. and Info. Engineering Univ. of Electronic Sci. and Tech. of China Chengdu 611731 China School of Comm. and Info. Engineering Chongqing Univ. of Posts and Telecomm. Chongqing 400065 China

There are various stochastic delay contaminations in the IP networks, which have a great impact on the performance of IP network coordinates system in terms of the delay prediction accuracy and the coordinate stability. Here, from the perspective of keeping the statistical characteristic of delay without a loss and suppressing the abnormal delay jitter, two contamination mitigation methods were proposed respectively, i. e., t-Filter and Δ-Filter. Through the PlanetLab datasets, compared with MP-Filter, the simulation results show that both t-Filter and Δ-Filter can enhance the delay prediction accuracy, the system stability and the system convergence in the more effective methods.

关键词： System stability

来源：评论

学校读者我要写书评

暂无评论

ISM: Intent-perceptible service migration model for IP network survivability

引用

Tien Tzu Hsueh Pao/Acta Electronica Sinica 2011年第12期39卷 2768-2775页

作者： Zhao, Er-Hu Yang, Xiao-Long Xu, Jie Long, Ke-Ping Zhang, Dan Research Centre for Optical Internet and Mobile Information Networks University of Electronic Science and Technology of China Chengdu Sichuan 611731 China National Key Lab. of Integrated Information System Tech. Institute of Software Chinese Acad. of Sci. Beijing 100190 China School of Computer and Communication Engineering University of Science and Technology Beijing Beijing 100083 China 706 Institute The Second Academy of China Aerospace Beijing 100854 China

The existing service migration methods bring the server cluster heavy burden, and their time spending is so high that seriously affects the service continuity. In order to enhance the survivability of IP network services, the paper puts forward an intent-perceptible service migration model (ISM). In this model, we design a novel trigger mechanism and object selecting method for service migration, and make the service migration intention perceptible for the client with the cooperation of the server. The evaluation results show that ISM model can not only ensure the service invulnerability by maintaining a high randomness of service migration, but also improve the service continuity by reducing the service gap time spending on service migration to the maximum extent. Therefore, ISM model can enhance IP network survivability efficiently.

关键词： Internet protocols

来源：评论

学校读者我要写书评

暂无评论

Rate control scheme for H.264/AVC video encoding

Rate control scheme for H.264/AVC video encoding

引用

2010 International Conference on computer Application and System Modeling, ICCASM 2010

作者： Zheng, Lihua Wu, Yue Tian, Ling Wu, Shuang School of Computer Science and Engineering University of Electronic Sci. and Tech. of China Chengdu 610054 China College of Computer Science Zhejiang University Hangzhou 310058 China

ISBN: (纸本)9781424472369

Rate control is a critical part of video compression systems, while the introduction of Rate-Distortion Optimization makes rate control in H.264/AVC more complex than previous standards. The frame coding complexity MAD is predicted in H.264/AVC rate control. In this paper, we present a novel estimation method for frame coding complexity in H.264/AVC. Meanwhile, a rate control scheme is proposed to improve the coding efficiency. Experimental results demonstrate that our rate control scheme gains better visual quality than that of joint model in H.264/AVC reference software. © 2010 IEEE.

关键词： Image coding

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：