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World Congress on Intelligent Control and Automation (WCICA)

作者： Shengtao Li Nan Jiang Dan Li College of Information Science and Engineering Shandong Normal University Jinan Shandong Province China Shandong Provincial Key Laboratory for Novel Distributed Computer Software Technology College of Information Science and Engineering Northeastern University Shenyang Liaoning Province China

A class of non-uniformly sampling system is investigated, and the lifted state space model of non-uniformly sampled-data system is derived by using integration method. The corresponding transfer function model is further obtained. To solve the problem that there exist unknown mid-variables in information vectors of identification model, the auxiliary model technique is applied to replace the unknown system variables. The auxiliary models based instrumental variable identification algorithm of non-uniformly sampled-data system is presented. At last, a numerical example is given to illustrate the proposed method is effective.

关键词： Instruments Vectors Parameter estimation Transfer functions Mathematical model Equations Educational institutions

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DETECTING THE RUN TIME ATTACKS IN THE CLOUD WITH AN EVIDENCE COLLECTION BASED APPROACH

DETECTING THE RUN TIME ATTACKS IN THE CLOUD WITH AN EVIDENCE...

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2014 IEEE 3rd International Conference on Cloud Computing and Intelligence Systems

作者： Jie lin Chuanyi Liu Zhichun Ning Binxing Fang School of Computer Science Beijing University of Posts and Telecommunications Key Laboratory of Trustworthy Distributed Computing and Service(BUPT) Ministry of Education School of Software Engineering Beijing University of Posts and Telecommunications School of Information and Communication Engineering Beijing University of Posts and Telecommunications

As the impacts of security threats are amplified and spread quickly in the cloud,especially with the attribute of large-scale *** of researches focus on monitoring the network ***,these methods don't check how the attack happened and what damage the attack caused for the virtual *** paper presents a logging method to analyze the potential attacks out of VM and a prototype was *** experimental results show that this method can detect the real world attacks effectively and the performance overhead is acceptable.

关键词： Virtual machine Cloud Security Control

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An energy saving and balanced clustering routing protocol for wireless sensor networks

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ICIC Express Letters 2014年第9期8卷 2577-2584页

作者： Liu, Fangai Zhang, Chunhua Wang, Jiwei School of Information Science and Engineering Shandong Normal University No. 88 East Wenhua Road Lixia District Jinan 250014 China Shandong Provincial Key Laboratory for Novel Distributed Computer Software Technology No. 88 East Wenhua Road Lixia District Jinan 250014 China

In order to prolong the lifetime of wireless sensor networks, we propose an energy saving and balanced clustering routing protocol (ESB). ESB employs energy and distance in probability model to generate candidate cluster-heads (CHs). Candidate CHs set timer based on residual energy to ensure the nodes with high residual energy become CHs. ESB employs residual energy and the distance to Sink in competing radius. When normal nodes select the optimal CH to join, they consider energy, its communication cost and CHs' communication cost. When CHs select relay-node, they consider optimal forwarding hops, energy, inter-cluster communication cost and intra-cluster communication cost. These measures can not only save energy, but also remit the imbalance problem of energy consumption. Through performance analysis, ESB has favorable expansibility and low algorithm complexity. The results of simulation experiments on the OMNet++ show that ESB can better balance energy consumption of all nodes in the network, save network's energy, and prolong network's lifetime compared with other cluster-based routing algorithms. © 2014 ISSN 1881-803X.

关键词： Energy utilization

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Predicting employee relations in enterprises by bi-directional link mining

Predicting employee relations in enterprises by bi-direction...

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World Congress on Intelligent Control and Automation (WCICA)

作者： Wang Hong Sun Yanshen Institute of Information Science and Engineering Shandong Normal University Jinan Shandong Province China Computer Software Novel Technology Shandong Provincial Key Laboratory for Distributed Jinan Shandong Province China Department of Earth Sciences ZheJiang University Hangzhou Zhejiang Province China

By using link mining method, we can understand associations among persons in enterprises. In this paper, we propose a link mining model called a bi-directional link mining, which is capable of predicting edges that do not exist but may appear in the future in dynamic multi-dimensional networks. Firstly, we construct a dynamic multi-dimensional networks from an E-mail network and a telephone network, which makes us correctly describe a Group's staff relationship. Then we present some algorithms to build a reduction dimensional network and a dynamic network. After that, we give bi-directional link mining methods in a dynamic multi-dimensional weighted network and apply these methods in the enterprise's employee relational network. Experimental results show that these methods can effectively predict associations among persons in a large scale employee networks.

关键词： Electronic mail Heuristic algorithms Personnel Bidirectional control Prediction algorithms Data mining Social network services

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Personalized recommendation based on link prediction in dynamic super-networks

Personalized recommendation based on link prediction in dyna...

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International Conference on Computing and Networking Technology (ICCNT)

作者： Wang Hong Yanshen Sun Xiaomei Yu Institute of Information Science and Engineering Shandong Normal University Jinan Shandong CN Zhejiang University Hangzhou China Institute of Information Science and Engineering Shandong Normal University Jinan China Shandong Provincial Key Laboratory for Distributed Computer Software Novel Technology Jinan China

Personalized recommendation is one of the most effective methods to solve the problem of information overloading. As many real existing systems in nature, a recommendation system can also be considered as a complex network system, so we can do personalized recommendation by using the link prediction method which is a new one in complex networks research area. In this paper, we present personalized recommendation method based on the link prediction in Super-networks. Firstly, we give several definitions such as a Super-network, a dynamic Super-network and a utility matrix etc. Secondly, we construct a personalized recommendation model based on these definitions. Thirdly, we define a similarity metric for users and some similarity criteria, put forward five link prediction related algorithms in dynamic Supernetworks and present our recommendation algorithms based on these link prediction algorithms. Finally, we apply our methods to classic datasets in order to evaluate the performance of our algorithms.

关键词： Prediction methods Heuristic algorithms Algorithm design and analysis Complex networks Prediction algorithms Internet Social network services

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DIV： Dynamic Integrity Validation Framework for Detecting Compromises on Virtual Machine Based Cloud Services in Real Time

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China Communications 2014年第8期11卷 15-27页

作者： WANG Chunlu LIU Chuanyi LIU Bin DONG Yingfei School of Computer Science Beijing University of Posts and Telecommunications Beijing 100876 P. R. China School of Software Engineering Beijing University of Posts and Telecommunications Beijing 100876 P. R. China Key Laboratory of Trustworthy Distributed Computing and Service (BUPT) Ministry of Education Beijing 100876 P. R. China Department of Electrical Engineering University of Hawaii Honolulu Hawaii U.S.

with the increasing popularity of cloud services,attacks on the cloud infrastructure also increase ***,how to monitor the integrity of cloud execution environments is still a difficult *** this paper,a real-time dynamic integrity validation(DIV) framework is proposed to monitor the integrity of virtual machine based execution environments in the *** can detect the integrity of the whole architecture stack from the cloud servers up to the VM OS by extending the current trusted chain into virtual machine's architecture *** introduces a trusted third party(TTP) to collect the integrity information and detect remotely the integrity violations on VMs periodically to avoid the heavy involvement of cloud tenants and unnecessary information leakage of the cloud *** evaluate the effectiveness and efficiency of DIV framework,a prototype on KVM/QEMU is implemented,and extensive analysis and experimental evaluation are *** results show that the DIV can efficiently validate the integrity of files and loaded programs in real-time,with minor performance overhead.

关键词： cloud security remote attestation trusted computing cloud trustworthiness

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A new fractional-order chaotic complex system and its antisynchronization

Abstract and Applied Analysis

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Abstract and Applied Analysis 2014年第1期2014卷

作者： Jiang, Cuimei Liu, Shutang Luo, Chao College of Control Science and Engineering Shandong University Jinan 250061 China School of Information Science and Engineering Shandong Normal University Jinan 250014 China Shandong Provincial Key Laboratory for Novel Distributed Computer Software Technology Jinan 250014 China

We propose a new fractional-order chaotic complex system and study its dynamical properties including symmetry, equilibria and their stability, and chaotic attractors. Chaotic behavior is verified with phase portraits, bifurcation diagrams, the histories, and the largest Lyapunov exponents. And we find that chaos exists in this system with orders less than 5 by numerical simulation. Additionally, antisynchronization of different fractional-order chaotic complex systems is considered based on the stability theory of fractional-order systems. This new system and the fractional-order complex Lorenz system can achieve antisynchronization. Corresponding numerical simulations show the effectiveness and feasibility of the scheme. © 2014 Cuimei Jiang et al.

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Adaptive web wrapper based on hybrid hierarchical conditional random fields for web data integration

Adaptive web wrapper based on hybrid hierarchical conditiona...

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2nd International Conference on Information Engineering and Applications, IEA 2012

作者： Ding, Yanhui Wang, Hongguo School of Information Science and Engineering Shandong Normal University Shandong Provincial Key Laboratory for Distributed Computer Software Novel Technology Jinan China

ISBN: (纸本)9781447148494

During the process of Web data integration, new related Web sites consisting valuable data will be identified constantly. Wrapper induction based on labeled examples is a widely accepted method. However, manually labeling the sampled Web pages in the new Web site is a time-consuming work. To efficiently extract the structured data from new related Web sites, a novel model, Hybrid Hierarchical Conditional Random Fields (HH-CRFs), is proposed in this paper. HH-CRFs are trained using the accumulated data in the system of Web data integration, and HH-CRFs perform type identification of Web object, Web object detection and attribute labeling together. Then, the labeled, sampled Web pages will be used to induce the wrapper of target Web site. Experimental results using a large number of real-world data collected from diverse domains show that the proposed approach can help to induce the target wrapper efficiently. © 2013 Springer-Verlag.

关键词： Websites

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Attribute-based access control security model in service-oriented computing

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2012 International Conference on Cybernetics and Informatics, ICCI 2012

作者： Zhang, Yongsheng S. Wu, Mingfeng F. Wu, Lei Li, Yuanyuan Y. Shandong Provincial Key Laboratory for Novel Distributed Computer Software Technology School of Information Science and Engineering Shandong Normal University 250014 Jinan China

ISBN: (纸本)9781461438717

Currently, industrial and scientific community are concerned about Service-Oriented Computing (SOC), whose key technology is Web services. Web service is a new distributed computing model. It has a broad prospect in application because of its loose coupling, platform irrelevance, language neutral, reusability and openness characteristics. However, the existing problems of Web service restrict the development of Service-Oriented Computing. The significance of research on Web service access control security model is profound. This paper puts trust mechanism as independent attributes to be used in Service-Oriented Computing security model to solve the above problems, and to be suited for Web services in characteristic of dynamic and fine-grained. © 2013 Springer Science+Business Media.

关键词： Access control

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An elastic and distributed secret sharing scheme

An elastic and distributed secret sharing scheme

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International Conference on Informatics and Management Science, IMS 2012

作者： Wu, Lei School of Information Science and Engineering Shandong Normal University Jinan 250014 China Shandong Provincial Key Laboratory for Distributed Computer Software Jinan 250014 China

ISBN: (纸本)9781447148104

How to ensure the security of important private data is the key problem in electric commerce. In this paper, we propose an elastic and distributed secret sharing scheme. The scheme improves the security of data and information by using technology of additive sharing and secret sharing. The information data is distributed and stored in a set of servers by additive sharing. Each data share is backed up to the sever sets. If an adversary could not corrupt more than the threshold number of servers, he could not obtain the secret information. The scheme has good elastic property;each server can freely join or quit the server group. The threshold value can be dynamically changed to adapt the environment in which the ability of adversary is alterable. © 2013 Springer-Verlag.

关键词： Security of data

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