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检索条件"任意字段=2012 IEEE 3rd International Conference on Software Engineering and Service Science, ICSESS 2012"

共 513 条记录，以下是491-500 订阅

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A CLUSTERING SCHEME FOR REACHBACK FIREFLY SYNCHRONICITY IN WIRELESS SENSOR NETWORKS

A CLUSTERING SCHEME FOR REACHBACK FIREFLY SYNCHRONICITY IN W...

引用

2012 3rd ieee international conference on Network Infrastructure and Digital Content

作者： Yi Sun, Qing Jiang, Kai Zhang School of Electrical and Electronic engineering, North China Electric Power University, Beijing 102206, China

The firefly algorithm has become a hot issue in the research of wireless sensor networks (WSN) synchronization recently. In this paper, a clustering scheme is introduced to Reachback Firefly Algorithm (RFA), and this newly proposed algorithm is clustering firefly synchronization algorithm (CFSA). At the beginning of CFSA, the initial phases of all nodes in the network are sequenced for the purpose of calculating the number of clusters required. Then the entire network is divided into several clusters. Thus the original synchronization process can be decomposed into the following two steps: Cluster-intra synchronization and Cluster-inter synchronization. The simulation results show that CFSA improves the convergence rate of the system. Meanwhile, it effectively reduces the number of flashes, which leads to the mitigation in the overall network load.

关键词： WSN Time synchronization Firefly synchronicity Clustering

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I-HASH MULTIPLE VARIOUS POSITION PATTERN MATCHING ALGORITHM IN INTERNET APPLICATION IDENTIFICATION

I-HASH MULTIPLE VARIOUS POSITION PATTERN MATCHING ALGORITHM ...

引用

2012 3rd ieee international conference on Network Infrastructure and Digital Content

作者： Gang He,Bo Sun,Yang Liu,Xiaochun Wu Beijing Key Laboratory of Network System Architecture and Convergence School of Information and Communication engineering Beijing University of Posts and Telecommunications,Beijing 100876,China

The efficiency of multiple pattern matching is the core technology of Deep Packet Inspection and it is important to the real word of internet traffic *** this research we propose a new multiple pattern matching technique for the fixed pattern in the packet load,which is called I-HASH multiple various position pattern matching *** is used to improve the matching speed through the *** algorithm is implemented in our experiments and compared with the existing *** results demonstrate that our algorithm is much more effective than STRCMP algorithm,especially when the number of patterns is quiet *** will be extraordinarily helpful in the areas of Internet application identification system and network intrusion detection system and so on,which contain huge amounts of fixed patterns.

关键词： DPI Multiple pattern matching Internet application identification Iterated HASH algorithm.

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A ROBUST MOVING OBJECT SEGMENTATION ALGORITHM USING INTEGRATED MASK-BASED BACKGROUND MAINTENANCE

A ROBUST MOVING OBJECT SEGMENTATION ALGORITHM USING INTEGRAT...

引用

2012 3rd ieee international conference on Network Infrastructure and Digital Content

作者： Yuyang Chen 1,Yanyun Zhao 1,2,Anni Cai 1,2 1 School of Information and Communication engineering,2 Beijing Key Laboratory of Network System and Network Culture,Beijing University of Posts and Telecommunications,Beijing 100876,China

In this paper a novel moving object segmentation algorithm is *** algorithm utilizes an integrated mask-based background(BG) maintenance scheme.A rough foreground(FG) mask and a blockbased FG mask are integrated by an OR operation to give the final update *** updating rates are used for different regions under different ***,by analyzing the distribution of pixel values of the temporal difference,we provide an effective detection scheme for sudden illumination change,after which the BG model is *** results based on the challenging I 2 R dataset show that our proposed method provides better performance in comparison with other classic and state-of-art algorithms such as GMM and Codebook,both qualitatively and *** to the overall metrics of F1 score,our method achieves 23.74% higher quality of FG segmentation than GMM.

关键词： Background Integrated Illumination change detection

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IMPLICIT SURFACE TRIANGULATION WITH SAMPLING

IMPLICIT SURFACE TRIANGULATION WITH SAMPLING

引用

2012 3rd ieee international conference on Network Infrastructure and Digital Content

作者： Mingjun Liu 1*,Jing Wang 1,Xiuyang Zhao 1,Teng'ao Liu 1,Li Li 2 1 School of Information science and engineering,University of Jinan,Shandong 250022,China 2 Shandong Key Laboratory for Testing Technology of Material Chemical Safety,Shandong Supervision and Inspection Institute for Product Quality,Shandong 250102,China

This paper presents a new way for implicit rendering with particle systems.A seed particle needs to be found at first,which updates itself in a way of *** particles are initialized by this *** can set the number of *** are repulsion forces between the *** move in the direction of the forces,and update themselves in the way of cubefinding until they reach a uniform *** implicit surfaces get a steady and good sampling.A Crust mesh algorithm is used to connect the sampling points into triangle *** is preferable to represent the surfaces with meshes rather than ***-finding method is absolutely *** size of meshes varies with the topology of the *** demonstrate this method is useful and efficiency.

关键词： Particle sampling Cube-finding Triangulation Implicit surface

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EFFICIENT ADAPTIVE INTRA-FIELD DEINTERLACING ALGORITHM USING BILATERAL FILTER

EFFICIENT ADAPTIVE INTRA-FIELD DEINTERLACING ALGORITHM USING...

引用

2012 3rd ieee international conference on Network Infrastructure and Digital Content

作者： Gwanggil Jeon Jechang Jeong Department of Electronics and Computer Engineering Hanyang University17 Haengdang-dongSeongdong-guSeoulKorea

In this paper,we introduce an efficient adaptive intra-field deinterlacing framework using bilateral filter with consideration of pixel similarity between the interpolated pixel and the neighbor *** the proposed framework,the low resolution image is first preprocessed using the simplest intra-field deinterlacing method,line average,due to its high efficiency and good performance,and then is decomposed using the fast bilateral filter into the detail and smooth layer which represent the small and large scale features,*** process smooth layer and detail layer *** detail layer,instead of estimating the edge orientations with some candidate directions as previous intra-field deinterlacing methods,such as edge-based line average,efficient edge-based line average etc.,we propose an adaptive but efficient deinterlacing method with consideration of pixel similarity,which avoids considering directional difference measures using limited candidate directions,resulting high *** with existing deinterlacing algorithms,the proposed algorithm improves peak signal-to-noise-ratio while maintaining high efficiency

关键词： Intra-field deinterlacing Bilateral filter Similarity.

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REVERSIBLE WATERMARKING BASED ON INVARIANT SUM VALUE FOR 2D VECTOR MAPS

REVERSIBLE WATERMARKING BASED ON INVARIANT SUM VALUE FOR 2D ...

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2012 3rd ieee international conference on Network Infrastructure and Digital Content

作者： Mingqin Geng 1,Puyi Yu 2,Hongmei Han 3,Zhengcen Teng 2,Jing Hu 2,Yifu Gao 4 1 School of Information engineering,China University of Geosciences(Beijing),Beijing 100083,China 2 Information Technology Center,BGP,CNPC,Beijing 100007,China 3 College of Information engineering,Capital Normal University,Beijing 100037,China 4 The Research Institute of Petroleum Exploration and Development,Beijing 100083,China

A simple reversible watermarking scheme for 2D vector maps is presented in this *** embedding data,the proposed scheme applies an integer transform for a pair of coordinate values to embed 1-bit watermark and makes the sum of the coordinate values *** extracting the embedded data,the proposed scheme gets the watermark bit and recovers the original data by using the invariant sum value and the parities of the sum value and the difference *** coordinate values not for embedding are *** the decoder,the marked pairs can be determined from the unmarked pairs by the ranges that their differences fall ***,the proposed scheme does not need to compress and embed the location ***,the computational complexity is low and the capacity is *** results show the proposed scheme has good performance.

关键词： Invariant sum value Coordinate value shifting Simple reversible watermarking 2D vector map

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A NESTED GENETIC ALGORITHM FOR TOPOLOGYOPTIMIZATION IN LRPON

A NESTED GENETIC ALGORITHM FOR TOPOLOGYOPTIMIZATION IN LRPON

引用

2012 3rd ieee international conference on Network Infrastructure and Digital Content

作者： Xiaoxu Liu,Rentao Gu,Yuefeng Ji Beijing Key Laboratory of Network System Architecture and Convergence,School of Information and Communication engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China

This paper researches and formulates a topology optimization model in long-reach passive optical network(LRPON).The objective is to minimize the deployment cost with certain physical constraints.A nested genetic algorithm(NGA) is proposed to solve the topology optimization *** NGA consists of two loops,and the outer-loop GA(OLG) is a simple genetic algorithm(SGA) to solve the location problem of splitters,while the inner-loop GA(ILG) is a partheno-genetic algorithm(PGA) to complete the construction of the spanning ***,three scenarios with different network scales are simulated to examine the efficiency of the proposed algorithm.

关键词： Nested genetic algorithm LRPON Topology optimization

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SPEECH RECOGNITION ERROR CORRECTION BY USING COMBINATIONAL MEASURES

SPEECH RECOGNITION ERROR CORRECTION BY USING COMBINATIONAL M...

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2012 3rd ieee international conference on Network Infrastructure and Digital Content

作者： Baoxiang Li,Fengxiang Chang,Jun Guo,Gang Liu School of Information and Communication engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China

We present a post-processing technique for correcting misrecognition results derived from a continuous speech recognizer with more sophisticated linguistic ***,we propose a novel confidence measure called word viability that is based on word activation force(WAF) model,which has the ability to correct some syntactic and semantic errors by means of taking the information about the neighbors into ***,the error correction algorithm corrects recognition errors by first creating candidate list for errors,and then re-ranking the candidates with a combination of mutual information score,trigram score and word viability *** film experiments show that the combination of mutual information,trigram and word viability can effectively reduce the character error rate of speech recognition.

关键词： Error correction Word activation force Confidence measure Speech recognition

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A NOVEL INTERPOLATION ALGORITHM FOR NONLINEAR OMNI-CATADIOPTRIC IMAGES

A NOVEL INTERPOLATION ALGORITHM FOR NONLINEAR OMNI-CATADIOPT...

引用

2012 3rd ieee international conference on Network Infrastructure and Digital Content

作者： Peiyi Shen 1,Liang Zhang 1,Zhijian Wang 1,Wei Shao 1,Zhengchuan Hu 1,Xiangdong Zhang 1,Yizhe Song 2 1 Xidian university,Xi'An 710071,China 2 School of Electronic engineering and Computer science,Queen Mary,University London,London E1 4NS,UK

This paper proposes a novel omni-image Interpolation technique and a new method to evaluation its ***-images are taken by non-linear catadioptric camera and offer important scientific and engineering benefits but often at the expense of the reduced visual *** algorithms aiming at improving the resolution of omni-images are deemed as an effective approach to deal with such a lack of visual *** contribution of this paper is that we propose an interpolation algorithm which could not only enhance the visual quality but also maintain camera *** properties of the interpolated images are preserved by utilizing the epipolar geometry constraint of non-linear *** our experiment,good performance was found on four sets of omni-images using the proposed method compared with the standard bilinear algorithm and bicubic algorithm.

关键词： Non-linear interpolation Epipolar geometry constraint

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NASH BARGAINING SOLUTION BASED SUBCARRIER ALLOCATION FOR UPLINK SC-FDMA DISTRIBUTED ANTENNA NETWORK

NASH BARGAINING SOLUTION BASED SUBCARRIER ALLOCATION FOR UPL...

引用

2012 3rd ieee international conference on Network Infrastructure and Digital Content

作者： Yusuke SATO Ryusuke,MATSUKAWA Tatsunori OBARA Fumiyuki ADACHI Dept. of Electrical and Communication Engineering Graduate School of Engineering Tohoku University 6-6-05 Aza-Aoba Aramaki Aoba-ku Sendai 980-8579 Japan

The system capacity of single-carrier frequency division multiple access (SC-FDMA) can be increased by allocating subcarriers to users who are in a good channel condition. However, there is a tradeoff between system capacity and fairness among users. Nash bargaining solution (NBS) in cooperative game theory can be used to solve this tradeoff problem. However, very high computational complexity is required to find the NBS. In this paper, we propose a reduced complexity suboptimal NBS based subcarrier allocation, which requires lower computational complexity while achieving the system capacity and fairness among users similar to the NBS. The proposed suboptimal NBS subcarrier allocation is applied to distributed antenna network (DAN) using frequency- domain space-time transmit diversity (FD-STTD). Numerical computation results show that the proposed NBS based subcarrier allocation achieves the system capacity comparable to Proportionally Fair (PF) map while achieving a higher fairness than PF map.

关键词： SC-FDMA Distributed antenna network Space-time coding Nash bargaining solution

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