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Research on heart sound identification technology

Science China(Information Sciences) 2012年第2期55卷 281-292页

作者： CHENG XieFeng1,3,MA Yong2,LIU Chen1,ZHANG XueJun1 & GUO YuFeng11School of Electronic Science and Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China 2School of computer Science and technology,Nanjing University of Science and technology,Nanjing 210094,China 3key lab of Broudbard Wireless communication and Sensor network technology(Nanjing University of Posts and Telecommunications),Ministry of Education,Nanjing 210094,China 1. School of Electronic Science and Engineering Nanjing University of Posts and Telecommunications Nanjing 210003 China3. Ministry of Education Key Lab of Broudbard Wireless Communication and Sensor Network Technology (Nanjing University of Posts and Telecommunications) Nanjing 210094 China2. School of Computer Science and Technology Nanjing University of Science and Technology Nanjing 210094 China

In this article,both the basic principles and the experimental methods of identity recognition technology based on heart sounds are ***,the characteristics of heart sounds and the feasibility of heart sounds as a biometric were analyzed.A synthetic model of heart sounds was then developed based on a family of wavelets;Finally,the characteristic parameters of heart sounds were extracted by using the heart sounds linear band frequency cepstra(HS-LBFC)with a specified configuration,and the similarity distance was adopted for heart sound *** highlight the difference in two heart sound signals between the time and frequency domains,a construction method of the heart sound wavelet,a calculation method of the parameters of a synthetic model,selection of the characteristic parameters of heart sounds and the corresponding data processing technology were *** experimental results showed that the proposed method exhibited excellent performance and practicability.

关键词： biometric wavelet family of heart sounds synthetic model of heart sounds heart sounds linear band frequency cepstra(HS-LBFC)

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Fully secure unidirectional identity-based proxy re-encryption

Fully secure unidirectional identity-based proxy re-encrypti...

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14th International Conference on Information Security and Cryptology, ICISC 2011

作者： Luo, Song Shen, Qingni Chen, Zhong College of Computer Science and Engineering Chongqing University of Technology Chongqing China School of Software and Microelectronics MoE Key Lab. of Network and Software Assurance Peking University Beijing China Institute of Software School of Electronics Engineering and Computer Science Peking University China Ministry of Education China

ISBN: (纸本)9783642319112

Proxy re-encryption (PRE) allows the proxy to translate a ciphertext encrypted under Alice's public key into another ciphertext that can be decrypted by Bob's secret key. Identity-based proxy re-encryption (IB-PRE) is the development of identity-based encryption and proxy re-encryption, where ciphertexts are transformed from one identity to another. In this paper, we propose two novel unidirectional identity-based proxy re-encryption schemes, which are both non-interactive and proved secure in the standard model. The first scheme is a single-hop IB-PRE scheme and has master secret security, allows the encryptor to decide whether the ciphertext can be re-encrypted. The second scheme is a multi-hop IB-PRE scheme which allows the ciphertext re-encrypted multiple times but without the size of ciphertext growing linearly as previous multi-hop IB-PRE schemes. © 2012 Springer-Verlag.

关键词： Security of data

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Zero-pole cancellation for identity-based aggregators:a constant-size designated verifier-set signature

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Frontiers of computer Science 2020年第4期14卷 197-210页

作者： E CHEN Yan ZHU Changlu LIN Kewei LV School of Computer and Communication Engineering University of Science and Technology BeijingBeijing100083China College of Mathematics and Informatics Fujian Normal UniversityFuzhou350117China Fujian Provincial Key Lab of Network Security&Cryptology Fujian Normal UniversityFuzhou350007China Institute of Information Engineering DCS Research CenterChinese Academy of SciencesBeijing100093China

In this paper we present a designated verifier-set signature(DVSS),in which the signer allows to designate many verifiers rather than one verifier,and each designated verifier can verify the validity of signature by *** research starts from identity-based aggregator(IBA)that compresses a designated set of verifier’s identities to a constant-size random string in cryptographic *** IBA is constructed by mapping the hash of verifier’s identity into zero or pole of a target curve,and extracting one curve’s point as the result of aggregation according to a specific *** the different types of target curves,these two IBAs are called as zeros-based aggregator and poles-based aggregator,*** on them,we propose a practical DVSS scheme constructed from the zero-pole cancellation method which can eliminate the same elements between zeros-based aggregator and poles-based *** to this design,our DVSS scheme has some distinct advantages:(1)the signature supporting arbitrary dynamic verifiers extracted from a large number of users;and(2)the signature with short and constant *** rigorously prove that our DVSS scheme satisfies the security properties:correctness,consistency,unforgeability and *** is a preview of subscription content,log in to check access.

关键词： designated verifier-set signature aggregator unforgeability exclusivity

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Quantum subsystem codes drived from negacyclic codes

Quantum subsystem codes drived from negacyclic codes

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International Conference on Wavelet Active Media technology and Information Processing (ICWAMTIP)

作者： Jianzhang Chen Jianping Li Jie Lin Yuanyuan Huang School of Computer Science and Engineering University of Electronic Science and Technology of China Chengdu China Chongqing Key Lab of Computer Network and Communication Technology Department of Network Engineering Chengdu University of Information Technology Chengdu China

In this paper, we utilize negacyclic codes to construct a family of optimal subsystem codes with parameters [[q 2 +1,(q-1) 2 , 4, q-1]] q > where q = 1(mod4), q = p τ , τ ≥ 1 and p is an odd prime. These constru... 详细信息

ISBN: (纸本)9781479972098

关键词： Quantum mechanics Error correction codes Linear codes Error correction Polynomials Galois fields Quantum computing

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Dynamic scheduling for workflow applications over virtualized optical networks

Dynamic scheduling for workflow applications over virtualize...

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2011 IEEE Conference on computer communications Workshops, INFOCOM WKSHPS 2011

作者： Ding, Jingyu Wang, Yan Le, Jiajin Jin, Yaohui School of Computer Sci. Tech. Donghua Univ. China Huawei Technology China State Key Lab of Advanced Optical Communication System and Network Shanghai Jiao Tong University China

ISBN: (纸本)9781457702488

Joint scheduling of both computation and communication resources for workflow based distributed computing application over optical networks has been studied recently. Most algorithms proposed in previous work are mainly based on static scheduling strategies with assumption that detail resource information and accurate performance prediction is available. In this paper, we propose to employ shared virtualized optical network (VON) for the task scheduling problem. Both customers and carriers can benefit from such architecture with better flexibility and scalability. Based on a new Scheduled Result Graph (SRG) concept, we propose a computation and communication delay aware rescheduling (C2DAR) scheme to deal with the dynamics from shared VON resources. We evaluate the performance of dynamic scheduling scheme over shared VON in comparison to the static scheduling over dedicated VON and entire optical network respectively. Simulation results also show that C2DAR scheme outperforms traditional computation delay aware rescheduling (CDAR) scheme under shared VON scenario. © 2011 IEEE.

关键词： Scheduling algorithms

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INTELLIGENT INFORMATION network SECURITY AND MANAGEMENT

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China communications 2016年第7期13卷 3-6页

作者： Yixian Yang Zhongshan Zhang Wenjing Li Information Security Center(ISC) Beijing University of Posts and Telecommunications(BUPT) National Engineering Laboratory for Disaster Backup and Recovery the School of Computer and Communication Engineering in the University of Science and Technology Beijing(USTB) State Key Lab of Networking and Switching Technologies Network Management Research Center at BUPT National Innovation Research Group of China

Intelligent Information network Security and Management(IINSM)is an emerging direction in future Internet architecture research,which has gained significant tractions among academia and *** the rapid development of modern society,intelligent information network with the computer as the core technology is widely used in every aspect of social ***

关键词： DCT INTELLIGENT INFORMATION network SECURITY AND MANAGEMENT Simulation DWT DCNN

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Robot and its living space:A roadmap for robot development based on the view of living space

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Digital communications and networks 2021年第4期7卷 505-517页

作者： Xiaofeng Cai Huansheng Ning Sahraoui Dhelim Rongjuan Zhou Tao Zhang Yang Xu Yueliang Wan School of Computer and Communication Engineering University of Science and Technology Beijing Beijing 100083China Beijing Engineering Research Center for Cyberspace Data Analysis and Applications Beijing 100083China School of Foreign Studies University of Science and Technology Beijing Beijing 100083China Key Lab of Information Network Security Ministry of Public SecurityChina Run Technologies Co. LidBeijing China

Robot’s living space Human-robot relationship Robot humanization Hybrid intelligence Human-robot integrated society Robots,as the creation of humans,became an irreplaceable component in human *** the advancement of technologies,robots have become more and more intelligent and have been widely used in many fields,such as disease diagnosis,customer services,healthcare for the older people,and so *** robots made our lives much more convenient than ever before,they also brought many potential risks and challenges in technology,security,and *** better understand the development of robots,we proposed a concept of a robot’s living space and analyzed the role of robots in our *** this paper,we focus on setting a theoretical framework of the robot’s living space to further understand the human-robot *** research in this paper contains three central ***,we interpret the concept of the robot’s living space and the functions of each ***,we analyze and summarize the relative technologies which support robots living well in each ***,we provide advice and improvement measures based on a discussion of potential problems caused by the developments of *** the trend of robots humanization and human-robot society integration,we should seriously consider how to collaborate with intelligent robots to achieve hybrid *** build a harmonious human-robot integrated society,studying the robot’s living space and its relationship with humans is the prerequisite and roadmap.

关键词： Robot's living space Human-robot relationship Robot humanization Hybrid intelligence Human-robot integrated society

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Performance analysis of data aggregation algorithms in wireless sensor networks

Performance analysis of data aggregation algorithms in wirel...

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2nd Annual Conference on Electrical and Control Engineering, ICECE 2011

作者： Xu, Jian Yang, Geng Chen, Zheng-Yu Chen, Lei Yang, Zhen College of Computer Science and Technology Nanjing University of Posts and Telecommunications Nanjing 210003 Jiangsu China Key Lab of Broadband Wireless Communication and Sensor Network Technology Ministry of Education Nanjing University of Posts and Telecommunications Nanjing 210003 Jiangsu China

ISBN: (纸本)9781424481637

Resource-constrained is a critical issue in Wireless Sensor networks (WSN) applications. Data aggregation (or data fusion) is one of the key techniques to solve the problem. Data aggregation can effectively reduce the data traffic, thereby reduce energy consumption, and extend the network's survival time. The research of data aggregation relates to many aspects of technology, so that the design of efficient data aggregation algorithm is a challenging task. In this paper, we investigate the effect of essential operations, scheduling algorithm and aggregation tree construction, has on data aggregation performance. The main performance such as end-to-end delay and energy-consumption of different aggregation schemes has been studied and measured by simulation experiment. © 2011 IEEE.

关键词： Scheduling algorithms

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Video smoke removal based on low-rank tensor completion via spatial-temporal continuity constraint

Video smoke removal based on low-rank tensor completion via ...

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作者： Zhu, Hu Xu, Guoxia Liu, Lu Deng, Lizhen Jiangsu Province Key Lab on Image Processing and Image Communication Nanjing University of Posts and Telecommunication Nanjing China Department of Computer Science Norwegian University of Science and Technology Gjovik Norway National Engineering Research Center of Communication and Network Technology Nanjing University of Posts and Telecommunication Nanjing China

Smoke has a very bad effect on the outdoor vision system. Not only are the videos with poor visual effects obtained, but also the quality and structure of the videos are reduced. In this paper, we propose a video smoke removal method based on low-rank tensor completion via spatial-temporal continuity constraint. The proposed method is based on the smoke mixing model and consider the sparseness of smoke and the global and local consistency of clean video. Then, the optimal solution of the smoke removal algorithm model is quickly realized by the Alternating Direction Method of Multiplier. Finally, we evaluate the experiment results of real-world data and simulated data from the visual effects and objective indicators. And the experiment results show that our proposed algorithm can achieve better smoke removal results. © 2021 John Wiley & Sons, Ltd.

关键词： Smoke

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Research on image compression and transmission mechanism for wireless multimedia sensor networks

Research on image compression and transmission mechanism for...

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2nd Annual Conference on Electrical and Control Engineering, ICECE 2011

作者： Xiao, Fu Zhang, Pan Sun, Li-Juan Wang, Jing Wang, Ru-Chuan College of Computer Nanjing University of Posts and Telecommunications Nanjing China Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks China Key Lab of Broadband Wireless Communication and Sensor Network Technology Nanjing University of Posts and Telecommunications Ministry of Education Nanjing China

ISBN: (纸本)9781424481637

A image compression and adaptive smoothing transmission mechanism for wireless multimedia sensor networks. Goal of our work is to minimize image distortion with the multimedia sensor network conditions varying constantly. Method which uses Set Partitioning in Hierarchical Trees (SPIHT) algorithm based on lifting wavelets for real-time images compression is first presented, and then a framework for realtime image delivery self-adapting over a TCP-friendly connection is depicted. In the context of this scheme, an adaptive smoothing algorithm is also developed based on the predicted available bandwidth to stream real-time image over the TCP-friendly rate control (TFRC) Protocol. Through simulation experiments, it has been shown that this adaptive algorithm performs for a wide-range of the bandwidth scenarios, and a smooth TCP-friendly real-time image transfer for wireless multimedia sensor networks can be accomplished by this proposed scheme. © 2011 IEEE.

关键词： Image compression

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