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IEEE International Conference on Computational Science and Engineering, CSE

作者： Yin Li Xuebing Zhao Hao Tang Qi Wang Sanfeng Zhang College of Software Engineering Southeast University Nanjing China Key Laboratory of Computer Network and Information Ministry of Education Southeast University Nanjing China

ISBN: (纸本)9781479979820

With the increasing popularization of low-cost smart mobile devices, which have the capability of short-range wireless communication, opportunistic networks aimed to meet different requirements start to put into practice. However, because of the mobility of nodes, links in opportunistic networks is intermittent and dynamic, which results in the problems of long delay time and low success rate of delivery. And these problems limit the further development of opportunistic networks. To solve these problems, this paper proposes a solution framework based on prediction, explores potential methods that are applicable to opportunistic networks and compares their performance and suitable application model.

关键词： Indexes Time series analysis Computational modeling Predictive models Prediction algorithms Complex networks

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Independent component analysis based on information bottleneck

Abstract and Applied Analysis

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Abstract and Applied Analysis 2015年第1期2015卷

作者： Ke, Qiao Zhang, Jiangshe Srivastava, H.M. Wei, Wei Chen, Guang-Sheng School of Mathematics and Statistics Xi'An Jiaotong University Xi'an 710049 China Department of Mathematics and Statistics University of Victoria Victoria V8W3R4 BC Canada School of Computer Science and Engineering Xi'An University of Technology Shaanxi Key Laboratory for Network Computing and Security Technology Xi'an 710048 China Department of Construction and Information Engineering Guangxi Modern Vocational Technology College Hechi Guangxi 547000 China

The paper is mainly used to provide the equivalence of two algorithms of independent component analysis (ICA) based on the information bottleneck (IB). In the viewpoint of information theory, we attempt to explain the two classical algorithms of ICA by information bottleneck. Furthermore, via the numerical experiments with the synthetic data, sonic data, and image, ICA is proved to be an edificatory way to solve BSS successfully relying on the information theory. Finally, two realistic numerical experiments are conducted via FastICA in order to illustrate the efficiency and practicality of the algorithm as well as the drawbacks in the process of the recovery images the mixing images. © 2015 Qiao Ke et al.

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Chip waveforms attribute recognition model research and design

Chip waveforms attribute recognition model research and desi...

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2014 International Conference on Manufacturing Technology and Electronics Applications, ICMTEA 2014

作者： Xiao, Da Feng, Jing Zhu, Yue Fei Peng, Fei Lan, Jing Hong Computer network department ZhengZhou Information Science University ZhengZhouHeNan China State Key Laboratory of Mathematical Engineering and Advanced Computing ZhengZhouHeNan China Urumqi General Hospital of PLA.Urumqi 7 Jianxue Street Xinjiang Uygur Zizhiqu Jinshui District ZhengZhouHeNan China

ISBN: (纸本)9783038353287

For hardware Trojan detection process is difficult to effectively extract the exact equivalent logic function of the target chip logic function is proposed based on contradictory truth table equivalent extraction scheme and key Enabling technologies. Designed to target chip waveforms attribute recognition model, through the analysis of multiple properties of the model and proof, the work is given waveform attribute recognition model parameter setting principles. © (2014) Trans Tech Publications, Switzerland.

关键词： Malware

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High-efficiency quantum steganography based on the tensor product of Bell states

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Science China(Physics,Mechanics & Astronomy) 2013年第9期56卷 1745-1754页

作者： XU ShuJiang CHEN XiuBo NIU XinXin YANG YiXian Information Security Center State Key Laboratory of Networking and Switching TechnologyBeijing University of Posts and Telecommunications Shandong Provincial Key Laboratory of Computer Network Shandong Computer Science Center State Key Laboratory of Information Security Institute of Information EngineeringChinese Academy of Sciences

In this paper,we first propose a hidden rule among the secure message,the initial tensor product of two Bell states and the final tensor product when respectively applying local unitary transformations to the first particle of the two initial Bell states,and then present a high-efficiency quantum steganography protocol under the control of the hidden *** the proposed quantum steganography scheme,a hidden channel is established to transfer a secret message within any quantum secure direct communication(QSDC) scheme that is based on 2-level quantum states and unitary *** secret message hiding/unhiding process is linked with the QSDC process only by unitary *** accurately describe the capacity of a steganography scheme,a quantitative measure,named embedding efficiency,is introduced in this *** performance analysis shows that the proposed steganography scheme achieves a high efficiency as well as a good ***,it is shown that this scheme can resist all serious attacks including the intercept-resend attack,measurement-resend attack,auxiliary particle attack and even the Denial of Service *** improve the efficiency of the proposed scheme,the hidden rule is extended based on the tensor product of multiple Bell states.

关键词： quantum steganography embedding efficiency quantum secure direct communication tensor product Bell state

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A Novel Quantum Covert Channel Protocol Based on Any Quantum Secure Direct Communication Scheme

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Communications in Theoretical Physics 2013年第5期59卷 547-553页

作者：徐淑奖陈秀波钮心忻杨义先 Information Security Center State Key Laboratory of Networking and Switching TechnologyBeijing University of Posts and Telecommunications Shandong Provincial Key Laboratory of Computer Network Shandong Computer Science Center State Key Laboratory of Information Security (Institute of Information Engineering Chinese Academy of Sciences)

By analyzing the basic properties of unitary transformations used in a quantum secure direct communication (QSDC) protocol, we show the main idea why a covert channel can be established within any QSDC channel which employs unitary transformations to encode information. On the basis of the fact that the unitary transformations used in a QSDC protocol are secret and independent, a novel quantum covert channel protocol is proposed to transfer secret messages with unconditional security. The performance, including the imperceptibility, capacity and security of the proposed protocol are analyzed in detail.

关键词： quantum information hiding quantum covert channel quantum cryptography quantum communication

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A Background Prior Based Saliency Detection for JPEG Image

A Background Prior Based Saliency Detection for JPEG Image

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International Symposium on Computational Intelligence and Design, ISCID

作者： Xiaolong Sun Zhanghui Liu Wenzhong Guo College of Mathematics and Computer Science Fuzhou University Fuzhou China Fujian Province Key Laboratory of Network Computing and Intelligent Information Process Fuzhou China

ISBN: (纸本)9781479970063

Image saliency detection, which is aiming at locating meaningful objects in image and extracting the corresponding saliency map, has been attracting considerable attention. Most of existing saliency detection algorithms are dealing with uncompressed images, while numerous images are distributed and stored in JPEG format over Internet. Thus, this paper proposes a novel image saliency detection method dealing with JPEG images, which directly extracts 3 image low-level features (intensity, texture and color) from JPEG DCT blocks and then evaluates image saliency by calculating the shortest path from each internal point to the background. We compare our method with some state-of-the-art methods on the publicly available dataset MSRA-1000. Experimental results show that our method exhibits better performance in terms of all four evaluations than some state-of-the-art methods in our experiments. The final saliency maps indicate that our method can also produce satisfied saliency maps directly in compressed domain.

关键词： Image color analysis Discrete cosine transforms Transform coding Feature extraction Image coding Detection algorithms computer vision

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A centralized latency optimization solution for tree-based application layer multicast

A centralized latency optimization solution for tree-based a...

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IEEE International Conference on Performance, Computing and Communications (IPCCC)

作者： Xinchang Zhang Weidong Gu Lu Wang Xiaomin Zhu Meng Sun DNSLAB China Internet Network Information Center Beijing China Shandong Key Laboratory of Computer Networks Shandong Computer Science Center (National Supercomputing Center in Jinan) Jinan China

ISBN: (纸本)9781479975761

Most application layer multicast (ALM) protocols build the delivery tree by the distributed way, which is necessary for large-scale group applications because of its good scalability. However, it is difficult for the distributed way to obtain high performance. To address the above problem, we study a VM-assisted ALM tree optimization solution (called ALMTO). The proposed solution uses cloud virtual machines (VMs) to collect the structure information on the ALM tree, and uses a centralized way to effectively reduce average latency of the ALM tree built by the distribute way.

关键词： Optimization Vegetation Peer-to-peer computing Protocols Switches Topology Sun

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A linearization regression method to determine life data distribution type

A linearization regression method to determine life data dis...

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3rd International Conference on Manufacture Engineering, Quality and Production System, ICMEQP 2014

作者： Qin, Jin Lei Niu, Yu Guang Li, Zheng Information and Network Management Center North China Electric Power University Baoding China State Key Laboratory of Alternate Electric Power System with Renewable Energy Sources North China Electric Power University Beijing China Department of Computer Science and Technology North China Electric Power University Baoding China

ISBN: (纸本)9783038350910

The law of equipments or products life is the calculation fundament of reliability indexes in power plant. Aim to how to determine the most fitted life distribution type, the linear regression and correlation coefficient had been employed in this paper. The linearization of common distribution like as: exponential distribution, normal distribution and logarithmic normal distribution, is complied with the principle of linear regression. After the comparison of correlation coefficient, the most fitted distribution type is quickly found out. The result also shows that the inferred distribution type is in accord with the facts. We may draw the conclusion from this research that the optimized linear regression and correlation coefficient is effective and valid for the inference of life data distribution type. © (2014) Trans Tech Publications, Switzerland.

关键词： Linearization

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Multi-user access control scheme based on resources hierarchies for perceptual layer of IoT

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Tien Tzu Hsueh Pao/Acta Electronica Sinica 2014年第1期42卷 28-35页

作者： Ma, Jun Guo, Yuan-Bo Ma, Jian-Feng Liu, Xi-Meng Li, Qi School of Computer Science and Technology Xidian University Xi'an Shaanxi 710071 China PLA Information Engineering University Zhengzhou Henan 450004 China Shaanxi Key Laboratory of Network and System Security Xidian University Xi'an Shaanxi 710071 China

A novel hierarchical access control scheme for perceptual layer of the IoT is presented based on resources hierarchies, which could conform to the secure and efficient access requirement of multi-user. In the scheme, every hierarchical node is composed of perceptual nodes which provide resources with the same levels of security. More hierarchical nodes can be modeled as a set of partially ordered classes. With this mode, a deterministic key derivation algorithm is designed, which makes every user and perceptual node possesses a single key material to get some keys, and obtains the resources at the presented class and all descendant classes in the hierarchy. Furthermore, a mechanism of Merkle tree is introduced to guarantee secure and efficient multi-user key material derivation by independent of each hash link. Compared with previous proposals, the scheme is more suitable for multi-user to access resources of perceptual layer in IoT.

关键词： Access control

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A Density-Based Space Filling Curve for Location Privacy-Preserving

A Density-Based Space Filling Curve for Location Privacy-Pre...

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IEEE International Conference on Services Computing (SCC)

作者： Feng Tian Xiaolin Gui Jian An Pan Yang Xuejun Zhang School of Electronic and Information Engineering Xi'an Jiaotong University Xi'an China Shaanxi Province Key Laboratory of Computer Network Xi'an Jiaotong University Xi'an China

Location-aware devices and cloud computing services have triggered the widespread development of location-based applications. However, such applications require users to disclose their actual locations, which raises serious privacy concerns. As a kind of spatial transformation method, the standard Hilbert curve (SHC) is widely used in privacy preserving for spatial data. But there are still many limitations for SHC, such as high CPU cost, using the unified partition granularity and inability to support partial region authorization, etc. In this paper, we present a density-based space filling curve (DSC) for spatial data transformation, which partition the space based on the density of points of interest (POI) and supports partial authorization of the space, and need relatively low CPU cost. Our experiments show that the security risk of DSC is lower than that of SHC, and DSC provides better index building and range query processing performance than SHC.

关键词： Spatial databases Indexes Cryptography Outsourcing Data privacy Partitioning algorithms Filling

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