检索结果-内蒙古大学图书馆

Conference on Local Computer networks (LCN)

作者： Qindong Sun Nan Wang Yadong Zhou Hanqin Wang Liansheng Sui Shaanxi Key Laboratory of Network Computing and Security Xi'an University of Technology Xi'an China MOE KLINNS Lab Xi'an Jiaotong University Xi'an China

User interaction is one of the most important features of online social networks, and is the basis of research of user behavior analysis, information spreading model, etc. However, existing approaches focus on the interactions between adjacent nodes, which do not fully take the interactions and relationship between local region users into consideration as well as the details of interaction process. In this paper, we find that there exists influence transfer effect in the process of user interactions, and present a regional user interaction model to analyze and understand interactions between users in a local region by influence transfer effect. Based on real data from Sina Weibo, we validate the effectiveness of our model by the experiments of user type classification, influential user identification and zombie user identification in online social networks. The experimental results show that our model present better performance than the PageRank based method and machine learning method.

关键词： Analytical models Twitter Data models Laboratories Educational institutions Learning systems

来源：评论

学校读者我要写书评

暂无评论

Energy saving model and simulation test based on 6LoWPAN wireless sensor network

引用

Open Automation and Control Systems Journal 2014年第1期6卷 1349-1358页

作者： Zhang, Yunyi Li, Yong Zhang, Ran Wei, Wei College of Computer and Communication Engineering Zhengzhou University of Light Industry Zhengzhou China School of Computer Science and Engineering Shaanxi Key Laboratory for Network Computing and Security Technology Xi’an University of Technology Xi’an China

This paper designs the mathematical model of fiber line power, optimization of wireless sensor network node and multi distributed IP, and uses C language to program the model, finally get a new energy-saving mechanism model of wireless sensor network. Combined with the distributed IPv6 technology and IEEE802.15.4 protocol, this paper designs a new 6LoWPAN wireless sensor network energy-saving mechanism, which realizes the seamless splicing energy-saving effect between wireless sensor network and the internet, and based on this develops Contiki integrated environment of wireless sensor network energy-saving test. Finally this paper uses Firefox browser with B/S architecture to test energysaving mechanism. Through the test we found that between two nodes of wireless sensor network, they can effectively realize sending and receiving of UDP data, and through IPv6 gateway it can connect with internet, and complete collection and transmission of data. Through the simulation calculation of power consumption, in accepting, transmission and idle periods, the wireless sensor network can save energy effectively, which reduces the splicing cost of internet and wireless sensor network. It provides the technical reference for the design of wireless sensor network. © Zhang et al.

关键词： Sensor nodes

来源：评论

学校读者我要写书评

暂无评论

Parallelization Using Task Parallel Library with Task-Based Programming Model

Parallelization Using Task Parallel Library with Task-Based ...

引用

2014 IEEE 5th International Conference on Software Engineering and Service Science

作者： Xinhong Hei Jinlong Zhang Bin Wang Haiyan Jin Nasser Giacaman Department of Electrical and Computer Engineering The University of Auckland Auckland New Zealand School of Computer Science and Engineering Xi’an University of Technology Shaanxi Key Laboratory for Network Computing and Security Technology

In order to reduce the complexity of traditional multithreaded parallel programming,this paper explores a new task-based parallel programming using the *** Task Parallel Library（TPL）.Firstly,this paper proposes a custom data partitioning optimization method to achieve an efficient data parallelism,and applies it to the matrix *** result of the application supports the custom data partitioning optimization *** we develop a task parallel application:Image Blender,and this application explains the efficiency and pitfall aspects associated with task ***,the paper analyzes the performance of our *** results show that TPL can dramatically alleviate programmer burden and boost the performance of programs with its taskbased parallel programming mechanism.

关键词： Parallel programming Task-based TPL Data parallelism Task parallelism

来源：评论

学校读者我要写书评

暂无评论

Parallelization using task parallel library with task-based programming model

Parallelization using task parallel library with task-based ...

引用

IEEE International Conference on Software Engineering and Service Sciences (ICSESS)

作者： Xinhong Hei Jinlong Zhang Bin Wang Haiyan Jin Nasser Giacaman School of Computer Science and Engineering Shaanxi Key Laboratory for Network Computing and Security Technology Xi'an Shaanxi Province China Department of Electrical and Computer Engineering The University of Auckland Auckland New Zealand

ISBN: (纸本)9781479932801

In order to reduce the complexity of traditional multithreaded parallel programming, this paper explores a new task-based parallel programming using the Microsoft .NET Task Parallel Library (TPL). Firstly, this paper proposes a custom data partitioning optimization method to achieve an efficient data parallelism, and applies it to the matrix multiplication. The result of the application supports the custom data partitioning optimization method. Then we develop a task parallel application: Image Blender, and this application explains the efficiency and pitfall aspects associated with task parallelism. Finally, the paper analyzes the performance of our applications. Experiments results show that TPL can dramatically alleviate programmer burden and boost the performance of programs with its task-based parallel programming mechanism.

关键词： Parallel processing Parallel programming Instruction sets Computational modeling Data models Educational institutions

来源：评论

学校读者我要写书评

暂无评论

Forgeability of Wang-Zhu-Feng-Yau’s Attribute-Based Signature with Policy-and-Endorsement Mechanism

引用

Journal of Computer Science & technology 2013年第4期28卷 743-748页

作者：葛爱军黄欣沂陈成马传贵张锐 State Key Laboratory of Mathematical Engineering and Advanced Computing Zhengzhou Information Science and Technology Institute State Key Laboratory of Information Security Institute of Information Engineering Chinese Academy of Sciences Fujian Provincial Key Laboratory of Network Security and Cryptology School of Mathematics and Computer ScienceFujian Normal University Institute of Software Chinese Academy of Sciences

Recently, Wang et al. presented a new construction of attribute-based signature with policy-and-endorsement mechanism. The existential unforgeability of their scheme was claimed to be based on the strong Diffie-Hellman assumption in the random oracle model. Unfortunately, by carefully revisiting the design and security proof of Wang et alfs scheme, we show that their scheme cannot provide unforgeability, namely, a forger, whose attributes do not satisfy a given signing predicate, can also generate valid signatures. We also point out the flaws in Wang et al.＇s proof.

关键词： attribute-based signature existential unforgeability policy-and-endorsement

来源：评论

学校读者我要写书评

暂无评论

DMAT: A new network and computer attack classification

引用

Journal of Engineering Science and technology Review 2013年第5期6卷 101-106页

作者： Jiang, Wei Tian, Zhi-Hong Cui, Xiang College of Computer Science Beijing University of Technology Beijing 100124 China School of Computer National University of Defense Technology Changsha 410073 China Key Laboratory of Information and Network Security Ministry of Public Security Shanghai 201204 China School of Computer Science and Technology Harbin Institute of Technology Haerbin 150001 China The Institute of Computing Technology Chinese Academy of Sciences Beijing 100080 China

With the rapid development of computer network and information technology, the Internet has been suffering from a variety of security attacks over the past few years. Attacks have become both numerous and complex, and the defender can not understand. In order to understand and defend against cyber attacks, it is necessary to understand the kind of attack. In this paper, we study computer and network attacks, and introduce a classification of them and propose a cyber attack classification called DMAT (Defense-oriented Multidimensional Attack Taxonomy). We use nine categories to describe the characteristic of the attack, which are attack target, attack impact, attack purpose, attack cost, attack exploiting, attack source, attack automation, attack loss and defense. The ninth category in the DMAT, classification by defense, is used to provide the defender with instructions of how to defense an attack. Compared to the existing taxonomies, our taxonomy efficiently classifies complex attacks and guide the defender to defense the possible attack. © 2013 Kavala Institute of technology. All rights reserved.

关键词： network security

来源：评论

学校读者我要写书评

暂无评论

Efficient public key cryptosystem resilient to key leakage chosen ciphertext attacks 1

引用

Cryptographers' Track at the RSA Conference 2013, CT-RSA 2013

作者： Liu, Shengli Weng, Jian Zhao, Yunlei Dept. of Computer Science and Engineering Shanghai Jiao Tong University Shanghai 200240 China Department of Computer Science Emergency Technology Research Center of Risk Evaluation and Prewarning on Public Network Security Jinan University China Software School Fudan University Shanghai 201203 China State Key Laboratory of Information Security Institute of Information Engineering Chinese Academy of Sciences Beijing 100093 China Shanghai Key Laboratory of Scalable Computing and Systems Shanghai China

ISBN: (数字)9783642360954

ISBN: (纸本)9783642360947

Leakage-resilient public key encryption (PKE) schemes are designed to resist "memory attacks", i.e., the adversary recovers the cryptographic key in the memory adaptively, but subject to constraint that the total amount of leaked information about the key is bounded by some parameter λ. Among all the IND-CCA2 leakage-resilient PKE proposals, the leakage-resilient version of the Cramer-Shoup cryptosystem (CS-PKE), referred to as the KL-CS-PKE scheme proposed by Naor and Segev in Crypto09, is the most practical one. But, the key leakage parameter λ and plaintext length m of KL-CS-PKE are subject to λ + m ≤ log q - ω(log κ), where κ is security parameter and q is the prime order of the group on which the scheme is based. Such a dependence between λ and m is undesirable. For example, when λ (resp., m) approaches to log q, m (resp., λ) approaches to 0. In this paper, we designed a new variant of CS-PKE that is resilient to key leakage chosen ciphertext attacks. Our proposal is λ ≤ log q - ω(log κ) leakage-resilient, and the leakage parameter λ is independent of the plaintext space that has the constant size q (exactly the same as that in CS-PKE). The performance of our proposal is almost as efficient as the original CS-PKE. As far as we know, this is the first leakage-resilient CS-type cryptosystem whose plaintext length is independent of the key leakage parameter, and is also the most efficient IND-CCA2 PKE scheme resilient to up to log q - ω(log κ) leakage. © 2013 Springer-Verlag.

关键词： Public key cryptography

来源：评论

学校读者我要写书评

暂无评论

Corrigendum to “A variable-length model for masquerade detection” [J. Syst. Softw. 85 (2012) 2470–2478]

引用

Journal of Systems and Software 2013年第3期86卷 868-868页

作者： Xi Xiao Xinguang Tian Qibin Zhai Shutao Xia Graduate School at Shenzhen Tsinghua University 518055 Shenzhen China State Key Laboratory of Information Security Graduate University of Chinese Academy of Sciences 100049 Beijing China Key Laboratory of Network Science and Technology Institute of Computing Technology Chinese Academy of Sciences 100190 Beijing China

来源：评论

学校读者我要写书评

暂无评论

A secure message delivery scheme with path tracking for delay tolerant networks

A secure message delivery scheme with path tracking for dela...

引用

2012 1st IEEE International Conference on Communications in China, ICCC 2012

作者： Jia, Zhongtian Raffay, Muhammad Ali Li, Lixiang Lin, Xiaodong Yang, Yixian Shandong Provincial Key Laboratory of Network Based Intelligent Computing University of Jinan Jinan 250022 China Information Security Center Beijing University of Posts and Telecommunications Beijing 100876 China Faculty of Business and Information Technology University of Ontario Institute of Technology Oshawa ON L1H 7K4 Canada

ISBN: (纸本)9781467328159

In delay tolerant networks (DTNs), message delivery is operated in an opportunistic way through store-carry and forward relaying, and every DTN node is in anticipation of cooperation for data forwarding from others. Unfortunately, there always exist some selfish nodes that are reluctant to contribute to this cooperative data forwarding procedure so as to save their valuable storage buffer, limited computation power and precious energy. In order to stimulate nodes' willingness to participate in data forwarding, a number of incentive schemes have been proposed recently. However, most existing incentive schemes simply ignore efforts of nodes involved in message delivery if messages delivered fail to reach their destinations. Due to the nature of DTN, such as intermittent connectivity, it is not unusual to have unreliable message delivery, which results in unrewarded or wasted efforts for participating nodes and may discourage them from participating in future data forwarding. Therefore, it is crucial to recognize contribution of every node involved in a data forwarding procedure even the message it helps to forward doesn't successfully reach its destination. However, how to track all delivery paths so as to give every intermediate node some incentive for their cooperative efforts of data forwarding is still an open research problem. To address this problem, we propose a secure message forwarding scheme with path tracking. The proposed method is end-to-end secure with data source and identity authentication. In addition, it can thwart some well known attacks including edge inserting attack, sibling inserting attack and free riding attack. © 2012 IEEE.

关键词： Delay tolerant networks

来源：评论

学校读者我要写书评

暂无评论

A secure message delivery scheme with path tracking for delay tolerant networks

A secure message delivery scheme with path tracking for dela...

引用

IEEE International Conference on Communications in China (ICCC)

作者： Zhongtian Jia Muhammad Ali Raffay Lixiang Li Xiaodong Lin Yixian Yang Information Security Center Beijing University of Posts and Telecommunications China Shandong Provincial Key Laboratory of Network based Intelligent Computing University of Jinan Jinan China Faculty of Business and Information Technology Institute of Technology University of Ontario Oshawa ONT Canada

关键词： Nickel Public key Protocols Relays Joining processes

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：