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Defending P2P networks based on benign worms

Journal of Computational Information systems 2011年第7期7卷 2532-2539页

作者： Liu, Xin Hu, Zhichao Liu, Guoyou Wang, Zhi Jia, Chunfu College of Information Technical Science Nankai University Tianjin 300071 China State Key Lab. for Novel Software Technology Nanjing University China

Malicious worms can be exploited to destroy the user system and launch DDoS attack against computer networks. We proposed a method of forming secure P2P network using benign worms against malicious worms. The corresponding benign worm with a hitlist is generated to clean the malicious worm and patch peers in the P2P network which is based on the largest distance list. The benign worm propagates along the histlist. The spread of the benign worm is also a distributed patching process. The patch can be disseminated more quickly and the network congestion is much less than centralized patching scheme in P2P networks. In the experiments, after the benign worm accomplished its mission in the P2P network, all the malicious worms on infected peers are cleaned and almost all of the vulnerable peers are patched. Copyright © 2011 Binary Information Press.

关键词： Denial-of-service attack

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A kind of SND-based algorithm for self-adapting network congestion control

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Journal of Information and Computational science 2011年第11期8卷 2033-2044页

作者： Zhang, Degan Hu, Yuxia Liang, Yanpin Liu, Zhaojing Tianjin Key Lab. of Intelligent Computing and Novel software Technology Tianjin University of Technology Tianjin 300191 China Key Laboratory of Computer Vision and System Ministry of Education Tianjin University of Technology Tianjin 300191 China

A kind of SND-based algorithm for self-adapting network congestion control has been presented in this paper, which is for the complicated and integrated network environment that the Internet of Things (IOT) to face in the future. As we know, the control of network congestion has become a hot spot in the study of Internet of Things transmission service. The network control algorithm of self-adapting congestion based on semi-normal distribution has improved the original packet loss rate function, and changed congestion situation in Internet of Things. By our many experiments, the validity and correctness of this algorithm has been tested. © 2011 Binary Information Press.

关键词： Internet of things

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Web service schema matching based on invocation instance duplicates

Web service schema matching based on invocation instance dup...

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2011 7th International Conference on Next Generation Web Services Practices, NWeSP 2011

作者： Wang, Ke Ou, Wei-Jie Zeng, Cheng Li, De-Yi Peng, Zhi-Yong National Science Library Chinese Academy of Sciences Beijing 100190 China State Key Lab of Software Engineering Wuhan University Wuhan 430072 China China Institute of Electronic System Engineering Beijing 100840 China School of Computer Wuhan University Wuhan 430072 China

ISBN: (纸本)9781457711268

Web service schema matching is the preliminary phase of service composition and service Mashup. With the entry of large numbers of services on the Internet, it will be difficult to find and suggest the most relevant service candidates for new composition and Mashup. Furthermore, the composition and Mashup candidates must be confirmed by manual work which is very inefficient and even inefficacious. In this work, we present an approach for web service schema matching based on service invocation instance duplicates. This approach predicts the schema relationship between web service parameters based on duplicates among invocation data sets and is very different from the syntactical-based and semantic-based matching approaches. It can be used for predicting and verifying service composition and Mashup candidates. © 2011 IEEE.

关键词： Web services

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Phoenix: Peer-to-peer location based notification in mobile networks

Phoenix: Peer-to-peer location based notification in mobile ...

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8th IEEE International Conference on Mobile Ad-hoc and Sensor systems, MASS 2011

作者： Xiong, Yongping He, Wenbo Chen, Canfeng Ma, Jian Sun, Limin State Key Lab. of Networking and Switching Tech. Beijing Univ. of Posts and Telecomm. China Department of Computer Science University of New Mexico Albuquerque NM United States Nokia Research Center Beijing China Wuxi SensingNet Industrialization Research Institute Wuxi China Institute of Software Chinese Academy of Sciences Beijing China

ISBN: (纸本)9780769544694

Location Based Notification (LBN) aims to alert the users in a target area with the information of interest to them. With a wide range of applications, LBN has been gaining more and more attraction among wireless users and service providers. The mainstream centralized solution based on cellular networks may incur high service cost. In this paper, we present an innovative scheme called Phoenix, which does not rely on any infrastructure, to implement for location based notification service. In our design, devices (users) across the target area form a dynamic peer-to-peer network, where a user can be a message source, a message carrier, or a message subscriber. When a user meets the message carrier, the user can get a copy of the message. Phoenix keeps messages of interest being circulated in the target area, hence users are being notified. To achieve desired notification performance, Phoenix adaptively controls when a user should take the carrier role and help disseminating a message in order to keep the message "alive", given the fact that message carriers may leave the target area and drop the message. Extensive simulations have been conducted to show the efficacy of Phoenix notification system. © 2011 IEEE.

关键词： Location based services

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Multi-user private keyword search for cloud computing

Multi-user private keyword search for cloud computing

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2011 3rd IEEE International Conference on Cloud Computing Technology and science, CloudCom 2011

作者： Yang, Yanjiang Lu, Haibing Weng, Jian Institute for Infocomm Research Singapore Singapore Dept. of Operations Management and Information Systems Leavey School of Business Santa Clara University United States Department of Computer Science Emergency Technology Research Center of Risk Evaluation and Prewarning on Public Network Security Jinan University Guangzhou China State Key Laboratory of Information Security Institute of Software Chinese Academy of Sciences China State Key Lab. of Networking and Switching Technology Beijing University of Posts and Telecommunications China

ISBN: (纸本)9780769546223

Enterprises outsourcing their databases to the cloud and authorizing multiple users for access represents a typical use scenario of cloud storage services. In such a case of database outsourcing, data encryption is a good approach enabling the data owner to retain its control over the outsourced data. Searchable encryption is a cryptographic primitive allowing for private keyword based search over the encrypted database. The above setting of enterprise outsourcing database to the cloud requires multi-user searchable encryption, whereas virtually all of the existing schemes consider the single-user setting. To bridge this gap, we are motivated to propose a practical multi-user searchable encryption scheme, which has a number of advantages over the known approaches. The associated model and security requirements are also formulated. We further discuss to extend our scheme in several ways so as to achieve different search capabilities. © 2011 IEEE.

关键词： Outsourcing

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A study on educational data clustering approach based on improved particle swarm optimizer

A study on educational data clustering approach based on imp...

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IEEE International Symposium on Information (IT) in Medicine and Education, ITME

作者： Xiangwei Zheng Yuanjiang Jia School of Information Science and Engineering Shandong Normal University Jinan China Shandong Provincial Key Lab. for Distributed Computer Software Novel Technology Jinan China

More and more clustering approaches are used in educational data mining for too many data are generated by web-based educational systems. To deal with the problem of premature convergence of the traditional K-means algorithm and computational costs, an improved K-means clustering algorithm based cooperative PSO frame is proposed in this paper. Cooperative PSO has been proved effective for large scale and complex problems via a divide-and-conquer strategy by simulating coevolutionary techniques in nature. Therefore, K-means clustering algorithm based cooperative PSO frame is effective in educational data clustering.

关键词： Clustering algorithms Vectors Particle swarm optimization Data mining Algorithm design and analysis Partitioning algorithms Educational institutions

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Flash based WebGIS system and its application in monitoring and evaluating China's regional development

International Journal of Digital Content Technology and its ...

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International Journal of Digital Content Technology and its Applications 2011年第5期5卷 285-295页

作者： Zhang, Jinqu Zhu, YunQiang Wang, Juanle Sun, Jiulin Xu, Yuyue Computer School South China Normal University China State Key Lab. of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences China

WebGIS applications are avidly gaining popularity with extensively development and use of GIS technology. By analyzing the current status of WebGIS, a Flash based WebGIS framework was developed. By converting the traditional GIS files such as ESRI Shapefile to the Shock Wave Flash (SWF) file format, the GIS data was highly compressed and suitable for the Internet publication. The technology was successfully applied to the monitoring and evaluating China's regional development system. The result shows that flash technology is smart, has easy configuration and fast speed in building WebGIS applications. Flash technology has great potential abilities in expressing spatial information and graphics rendering. To some extent, it's unique and better than the traditional WebGIS software in graphics dynamic rendering and especially useful for time-series data analysis using an animation method.

关键词： Shock waves

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Knowledge granulation in interval-valued information systems

Knowledge granulation in interval-valued information systems

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International Workshop on Intelligent systems and Applications

作者： Zhang, Nan Miao, Duoqian Gao, Can Department of Computer Science and Technology Tongji University Shanghai 201804 China Department of Computer Science University of Regina Regina SK S4S 0A2 Canada Key Lab. of Embedded System and Service Computing Ministry of Education Tongji University Shanghai 201804 China Department of Electrical and Computer Engineering University of Alberta Edmonton AB T6R 2G4 Canada

ISBN: (纸本)9781424498574

Rough set theory, proposed by Pawlak, has been proved to be a mathematical tool to deal with vagueness and uncertainty in intelligent information processing. In this paper, we propose the concept of knowledge granulation in interval-valued information systems, and discuss some important properties. From these properties, it can be shown that the proposed knowledge granulation provides important approaches to measuring the discernibility of different knowledge. It may be helpful for rule evaluation and knowledge discovery in interval-valued information systems. © 2011 IEEE.

关键词： Information systems

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FECG extraction using wavelet denoising and neural networks approach

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ICIC Express Letters 2011年第3期5卷 667-673页

作者： Yin, Ying Ye, Mao Zhu, Yuanxiang Ren, Dongxiao School of Applied Mathematics School of Computer Science and Engineering University of Electronic Science and Technology of China No. 4 Sec. 2 Jianshe North Road Chengdu 610054 China State Key Lab. for Novel Software Technology Nanjing University 22 Hankou Road Nanjing 210093 China

Neural networks have received much attention in the extraction of fetal electrocardiogram signal in recent years. This paper provides a new method to extract the fetal electrocardiogram signal which uses wavelet denoising and backpropagation algorithm. We suppose there are two signals obtained from thoracic region and abdominal region of a pregnant woman. By denoising the abdominal signal using wavelet, and then subtracting the distorted thoracic signal from the denoised abdominal signal, the fetal electrocardiogram signal is achieved. The distorted thoracic signal is received by backpropagation algorithm because neural networks can uniformly approximate every continuous function if there is sufficient number of neurons in the hidden layer. © 2011 ISSN 1881-803X.

关键词： Extraction

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

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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

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