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Estimation of ship's extremely low frequency electromagnetic signature based on fuzzy fusion for target detection

Estimation of ship's extremely low frequency electromagnetic...

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IEEE China Summit & International Conference on Signal and Information Processing (ChinaSIP)

作者： Yihai Liu Xiaomin Zhang Jianfeng Shao Bingqi Zhang School of Marine Science and Technology Northwestern Polytechnical University Xi'an China Dep. of Electrical & Computer Engineering State University of New York New Paltz USA

The alternative electromagnetic (EM) fields radiating from a ship are widely recognized as new contributors to the application of underwater target detection. This paper focuses on the estimation of this extremely low frequency (ELF) signature from a fuzzy fusion enhancement aspect. Firstly, the ELF signature estimation problem is expanded to a fuzzy credibility solution issue, and a generalized multi-attribute fuzzy vector which represents each frequency points' line spectrum characteristic is obtained by a statistical procedure on sensor's instantaneous spectral analysis. Then, the fuzzy fusion method is applied to obtain the credible degree of each frequency point to be an ELF. Finally, threshold is set to extract ship's truly ELF signature with largest likelihood and shield interference of the noise ELF signature. Experimental results show that the proposed algorithm has particular advantage in remote target detection.

关键词： Ground penetrating radar Geophysical measurement techniques Marine vehicles Frequency estimation Estimation Vectors Electromagnetics

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A lightweight mutual authentication mechanism for improving fast PMIPV6-based network mobility scheme

A lightweight mutual authentication mechanism for improving ...

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IEEE International Conference on Network Infrastructure and Digital Content (IC-NIDC)

作者： Sirine Ben Ameur Faouzi Zarai Salima Smaoui Mohammad S. Obaidat K.F. Hsiao LETI laboratory University of Sfax Tunisia Computer Science and Software Engineering Department Monmouth University NJ USA Dep.of Information Management Ming-Chuan University Taiwan

In the last decade, the request for Internet access in heterogeneous environments keeps on growing, principally in mobile platforms such as buses, airplanes and trains. Consequently, several extensions and schemes have been introduced to achieve seamless handoff of mobile networks from one subnet to another. Even with these enhancements, the problem of maintaining the security concerns and availability has not been resolved yet, especially, the absence of authentication mechanism between network entities in order to avoid vulnerability from attacks. To eliminate the threats on the interface between the mobile access gateway (MAG) and the mobile router (MR) in improving fast PMIPv6-based network mobility (IFP-NEMO) protocol, we propose a lightweight mutual authentication mechanism in improving fast PMIPv6-based network mobility scheme (LMAIFPNEMO). This scheme uses authentication, authorization and accounting (AAA) servers to enhance the security of the protocol IFP-NEMO which allows the integration of improved fast proxy mobile IPv6 (PMIPv6) in network mobility (NEMO). We use only symmetric cryptographic, generated nonces and hash operation primitives to ensure a secure authentication procedure. Then, we analyze the security aspect of the proposed scheme and evaluate it using the automated validation of internet security protocols and applications (AVISPA) software which has proved that authentication goals are achieved.

关键词： Authentication Mobile communication Mobile computing Handover Protocols

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A LIGHTWEIGHT MUTUAL AUTHENTICATION MECHANISM FOR IMPROVING FAST PMIPV6-BASED NETWORK MOBILITY SCHEME

A LIGHTWEIGHT MUTUAL AUTHENTICATION MECHANISM FOR IMPROVING ...

引用

2014 4th IEEE International Conference on Network Infrastructure and Digital Content

作者： Sirine Ben Ameur Faouzi Zarai Salima Smaoui Mohammad S.Obaidat K.F.Hsiao LETI laboratory University of SfaxTunisia Computer Science and Software Engineering Department Monmouth University NJ 07764 USA Dep.of Information Management Ming-Chuan University

In the last decade, the request for Internet access in heterogeneous environments keeps on growing, principally in mobile platforms such as buses, airplanes and trains. Consequently, several extensions and schemes have been introduced to achieve seamless handoff of mobile networks from one subnet to another. Even with these enhancements, the problem of maintaining the security concerns and availability has not been resolved yet, especially, the absence of authentication mechanism between network entities in order to avoid vulnerability from attacks. To eliminate the threats on the interface between the mobile access gateway（MAG） and the mobile router（MR） in improving fast PMIPv6-based network mobility（IFPNEMO） protocol, we propose a lightweight mutual authentication mechanism in improving fast PMIPv6-based network mobility scheme（LMAFPEMO）. This scheme uses authentication, authorization and accounting（AAA） servers to enhance the security of the protocol IFP-NEMO which allows the integration of improved fast proxy mobile IPv6（PMIPv6） in network mobility（NEMO）. We use only symmetric cryptographic, generated nonces and hash operation primitives to ensure a secure authentication procedure. Then, we analyze the security aspect of the proposed scheme and evaluate it using the automated validation of internet security protocols and applications（AVISPA） software which has proved that authentication goals are achieved.

关键词： network mobility,proxy mobile IPv6,security,authentication,AVISPA

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Detection of JavaScript of Malware with Un-readability Using Mahalanobis-Distance

Detection of JavaScript of Malware with Un-readability Using...

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International Conference on Broadband, Wireless Computing, Communication and Applications (BWCCA)

作者： Kentaro Takamori Mai Iwamoto Shunsuke Oshima Takuo Nakashima Production System Engineering Course Kumamoto National College of Technology Yatsushiro Kumamoto Japan Kumamoto National College of Technology ICT Center for Learning Support Yatsushiro Kumamoto Japan Kumamoto National College of Technology Center for Technical and Educational Support Yatsushiro Kumamoto Japan Dep. of Electronics Engineering and Computer Science Tokai University Kumamoto Japan

Increasing of Java Scripts of malware requires automatic malware detection systems in these days. Our research takes note of the appearence probability and the state transition probability of first order Markov source for both of malware Java Script and other Java Script. The preexperiments found statistical significance. We propose the malware detection method using Mahalanobis-distance with the probability variable of the appearance probability of characters and the probability variable of state transition probability of first order Markov source. As the results of experiments, the method of combining two probability variables proved the effectiveness compared to the method using single probability variable.

关键词： Malware Markov processes Probability Covariance matrices Educational institutions Vectors Feature extraction

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Nonminimum-phase channel equalization using all-pass CMA

Nonminimum-phase channel equalization using all-pass CMA

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2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013

作者： Blom, Koen C.H. Gerards, Marco E.T. Kokkeler, Ándre B.J. Smit, Gerard J.M. Dep. of Electrical Engineering Mathematics and Computer Science University of Twente P.O. Box 217 7500 AE Enschede Netherlands

ISBN: (纸本)9781467362351

A nonminimum-phase channel can always be decomposed into a minimum-phase part and an all-pass part. In our approach, called all-pass CMA, the dimensionality of the CMA algorithm has been reduced to improve blind equalization of a nonminimum-phase channel's all-pass part. The dimensionality reduction has been performed by parameterizing the CMA cost function in terms of the nonminimum-phase zero location of the all-pass part to be compensated. Currently, all-pass CMA can only compensate a single nonminimum-phase zero. However, compared to CMA, it typically provides a faster and more accurate compensation of this zero. © 2013 IEEE.

关键词： Blind equalization

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Static analysis of worst-case stack cache behavior 13

Static analysis of worst-case stack cache behavior

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21st International Conference on Real-Time Networks and Systems, RTNS 2013

作者： Jordan, Alexander Brandner, Florian Schoeberl, Martin Compilers and Languages Group Institute of Computer Languages Vienna University of Technology Austria Embedded Systems Engineering Section Dep. of Applied Mathematics and Computer Science Technical University of Denmark Denmark

ISBN: (纸本)9781450320580

Utilizing a stack cache in a real-time system can aid predictability by avoiding interference that heap memory traffic causes on the data cache. While loads and stores are guaranteed cache hits, explicit operations are responsible for managing the stack cache. The behavior of these operations can be analyzed statically. We present algorithms that derive worst-case bounds on the latency-inducing operations of the stack cache. Their results can be used by a static WCET tool. By breaking the analysis down into subproblems that solve intra-procedural data-flow analysis and path searches on the call-graph, the worst-case bounds can be efficiently yet precisely determined. Our evaluation using the MiBench benchmark suite shows that only 37% and 21% of potential stack cache operations actually store to and load from memory, respectively. Analysis times are modest, on average running between 0.46s and 1.30s per benchmark, dep.nding on the size of the stack cache. © 2013 ACM.

关键词： Real time systems

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Ubiquitous mobile instrumentation

Ubiquitous mobile instrumentation

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2013 ACM Conference on Ubiquitous Computing, UbiComp 2013

作者： Ferreira, Denzil Koehler, Christian Karapanos, Evangelos Kostakos, Vassilis Dep. Computer Science and Engineering University of Oulu Finland Human-Computer Interaction Institute Carnegie Mellon University United States Madeira Interactive Technologies Institute University of Madeira Portugal

ISBN: (纸本)9781450322157

Mobile phones allow us to reach people anywhere, at anytime. In addition to the benefits for end users, researchers and developers can also benefit from the powerful devices that participants carry on a daily basis. Collectively, mobile phones form a ubiquitous computer. Ubiquitous Mobile Instrumentation (UbiMI) workshop focuses on using mobile devices as instruments to collect data and conduct mobile user studies, to understand human-behavior, routines and gathering users' context. Copyright © 2013 ACM.

关键词： Cellular telephones

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HIP-IKEv2: A proposal to improve internet key exchange protocol-based on host identity protocol

HIP-IKEv2: A proposal to improve internet key exchange proto...

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3rd International Conference on Simulation and Modeling Methodologies, Technologies and Applications, SIMULTECH 2013

作者： Smaoui, S. Zarai, F. Obaidat, M.S. Hsiao, K.F. Kamoun, L. LETI laboratory University of Sfax Sfax Tunisia Computer Science and Software Engineering Department Monmouth University West Long Branch NJ 07764 United States Dep. of Information Management Ming-Chuan University Taoyuan County 333 Taiwan

ISBN: (纸本)9789898565693

IKEv2 offers authentication, authorization and key agreement services to establish a security association between two peers bound to IP addresses, but it is still vulnerable to some security problems such as denial of service (Dos) and man-in-the-middle attack. Host Identity Protocol (HIP) is also a security protocol that defines host identifiers for naming the endpoints and performs authentication and creation of IPsec security associations between them bound to identifiers. The purpose of HIP is to support trust systems, enhance mobility and greatly reduce the Denial of Service (Dos) attacks. We focus on an extension to IKEv2 in order to enhance authentication, eliminate man-in-the-middle attack and guarantee denial of service to provide better security between the two peers. In this paper, we describe our proposal that consists of combining the IKEv2 with the HIP to set up a security association based on two parameters which are location and Identity. This combination can provide better security properties than each protocol used alone. This scheme, named (HIP-IKEv2) couples location and identity to define a security association between two peers. We have used the Automated Validation of Internet Security Protocols and Applications (AVISPA) and its Security Protocol Animator (SPAN), and two powerful automated tools in order to formally specify and validate the HIP-IKEv2 protocol.

关键词： Authentication

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Wavelet compression inspired implementation for high performances and low complexity ECG removal in wireless sEMG electrodes

Wavelet compression inspired implementation for high perform...

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IEEE International Conference on Electronics, Circuits and Systems (ICECS)

作者： Mohamed El Fares Djellatou Daniel Massicotte Mounir Boukadoum Dep. Electrical and Computer Engineering LSSI Dep. Computer Science Université du Québec à Montréal

This study addresses the removal of electrocardiogram pulses (ECG) from surface electromyography signals (sEMG) in wireless sEMG electrodes. We describe a wavelet-compression inspired filtering technique in order to minimize the computational complexity required in wireless sEMG electrodes while providing higher filtering performance than when with standard means. Using semi-artificially prepared signals, we show that the discrete wavelet transform (DWT) enables a partial separation between the sEMG and ECG signals in time domain. Then, only the highly overlapped parts are fed into an adaptive noise cancellation (ANC) structure for lower computational complexity filtering. The simulation results confirm the improved noise rejection and the gain in computational complexity obtained with the proposed method.

关键词： Discrete wavelet transforms Electrocardiography Finite impulse response filters Least squares approximations Signal processing algorithms Complexity theory

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Feature selection methods in persian sentiment analysis

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18th International Conference on Application of Natural Language to Information Systems, NLDB 2013

作者： Saraee, Mohamad Bagheri, Ayoub School of Computing Science and Engineering University of Salford Manchester United Kingdom Intelligent Database Data Mining and Bioinformatics Lab Electrical and Computer Engineering Dep. Isfahan University of Technology Isfahan Iran

ISBN: (纸本)9783642388231

With the enormous growth of digital content in internet, various types of online reviews such as product and movie reviews present a wealth of subjective information that can be very helpful for potential users. Sentiment analysis aims to use automated tools to detect subjective information from reviews. Up to now as there are few researches conducted on feature selection in sentiment analysis, there are very rare works for Persian sentiment analysis. This paper considers the problem of sentiment classification using different feature selection methods for online customer reviews in Persian language. Three of the challenges of Persian text are using of a wide variety of declensional suffixes, different word spacing and many informal or colloquial words. In this paper we study these challenges by proposing a model for sentiment classification of Persian review documents. The proposed model is based on stemming and feature selection and is employed Naive Bayes algorithm for classification. We evaluate the performance of the model on a collection of cellphone reviews, where the results show the effectiveness of the proposed approaches. © 2013 Springer-Verlag Berlin Heidelberg.

关键词： Feature Selection

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