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检索条件"主题词=Software algorithms"

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A Visualization Quality Evaluation Method for Multiple Sequence Alignments

A Visualization Quality Evaluation Method for Multiple Seque...

引用

International Conference on Bioinformatics and Biomedical Engineering (ICBBE)

作者： Hongbin Lee Bo Wang Xiaoming Wu Yonggang Liu Wei Gao Huili Li Xu Wang Feng He School of life science and technology Xi''an Jiaotong University Xi'an China

Multiple sequence alignments (MSA) method is basic way for the analysis of biology sequences. As dozens of MSA algorithms appears, reasonable and effective quality evaluation method is necessary. Gap-insertion is common phenomenon after MSA, and should be an important factor to evaluate whether MSA is successful. A new MSA score evaluation method was introduced in this paper, which was based on the combination of both row distance of letters and column consensus of sequences. It can be used to evaluate the quality of MSA in the global and local justly and effectively. At same time, two formulas for assessing the distance of different MSA algorithms were derived.

关键词： Proteins Clustering algorithms software Heuristic algorithms software algorithms DNA

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Research on Localization and Path Planning of Indoor Robot Based on ROS

Research on Localization and Path Planning of Indoor Robot B...

引用

Computer Information Science and Artificial Intelligence (CISAI), International Conference on

作者： XiaoHong Wang XuePei Ma ShengLan Zhu Kun Zhang YaNan Sun School of Information Science and Engineering Hebei University of Science and Technology Shijiazhuang China

ISBN: (纸本)9781665406932

To meet the needs of monitoring the indoor environment, a mobile robot that patrols indoors is designed. The mobile robot uses Raspberry Pi equipped with a ROS system as the control core, uses lidar to collect environmental information, and uses various function packages to develop algorithms under the ROS distributed framework. It is based on the Karto algorithm to build maps and uses the A* algorithm and DWA algorithm to realize autonomous navigation. The robot uses a two-wheel independent drive robot chassis to cope with the complex environment. After the indoor environment test, the goal of indoor map construction and path planning can be completed, which is of great significance to the research in the indoor environment in the future.

关键词： Mechanical sensors software algorithms Robot sensing systems Path planning software Indoor environment software reliability

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Real time power system harmonic distortion assessment virtual instrument

Real time power system harmonic distortion assessment virtua...

引用

International Conference on Harmonics and Quality of Power

作者： Rodney H.G. Tan V.K. Ramachandaramurthy UCSI University Kuala Lumpur Malaysia Power Quality Research Group Universiti Tenaga Nasional Jalan IKRAM-UNITEN Kajang Selangor Darul Ehsan Malaysia

This paper presents a real time power system harmonic distortion assessment instrument implemented using virtual instrument concept. The measurement hardware consists of measurement probes with signal conditioning circuit connected to a data acquisition module. The data acquisition module is interface to computer through a USB interface. Harmonic distortion assessment algorithm using Fourier transform was implemented using MATLAB. A graphical user interface was developed to display the harmonic distortion assessment in real time. The harmonic distortion is able assess individual harmonic order up to 50th order and the total harmonic distortion according to IEEE 519, IEC 61000-2-2 or EN 50160 standards selected by the user. An acceptability index is also proposed in this paper for trend assessment. The proposed real time harmonic distortion assessment virtual instrument was evaluated through field testing. The test results show promising performance for the proposed real time power system harmonic distortion assessment virtual instrument.

关键词： Harmonic analysis software software algorithms Power system harmonics IEEE standards

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Spectral clustering algorithm based on adaptive neighbor distance sort order

Spectral clustering algorithm based on adaptive neighbor dis...

引用

International Conference on Information Sciences and Interaction Sciences (ICIS)

作者： Yifei Zhang Junlin Zhou Yan Fu School of Software University of Electronic Science and Technology Chengdu China

Spectral clustering has been widely used in data mining in the past years. The performance of spectral clustering is very sensitive to the selection of scale parameter. Especially, when data has multi-scale it is very difficult to find a proper value for the scale parameter. To solve the problem, an improved method based on adaptive neighbor distance sort order has been proposed in this paper. The method enlarges the affinity between two points in the same cluster and reduces that in different clusters. Our experiments on the synthetic and real life datasets have shown promising results comparing with tradition method and k-means.

关键词： Clustering algorithms Symmetric matrices Kernel software algorithms Electronic mail Data mining Nearest neighbor searches Clustering methods Pattern recognition Image segmentation

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CAD-Based Workspace Analysis of a 6-DOF Foldable Parallel Manipulator with a Circular Rail (FoldRail Manipulator)

CAD-Based Workspace Analysis of a 6-DOF Foldable Parallel Ma...

引用

ASME/IFToMM International Conference on Reconfigurable Mechanisms and Robots, ReMAR

作者： Sergey V. Kiselev Alexey S. Fomin Anton V. Antonov Mechanical Engineering Research Institute of the Russian Academy of Sciences (IMASH RAN) Moscow Russia

ISBN: (数字)9798350395969

ISBN: (纸本)9798350395976

Nowadays, computer-aided design (CAD) finds many applications in the development and analysis of manipulators and robots. It accurately reflects the design features of the considered mechanical system, including the geometry and material of its links. This article applies CAD tools to analyze a workspace of a 6-DOF foldable parallel manipulator with a circular rail (FoldRail manipulator). The article proposes an algorithm to determine a translation (constant orientation) workspace of the manipulator using a geometrical method implemented in the SolidWorks software. The combination of this method and a CAD model of the manipulator allows considering all of its design features. The results are presented for the horizontal and tilted orientations of the output link.

关键词： Rails Geometry Solid modeling Design automation software algorithms Kinematics Manipulators

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An efficient Euclidean algorithm for Reed-Solomon code to correct both errors and erasures

An efficient Euclidean algorithm for Reed-Solomon code to co...

引用

IEEE Pacific Rim Conference on Communications, Computers and Signal Processing

作者： Y.W. Chang J.H. Jeng T.K. Truong College of Electrical and Information Engine Cnn I-Shou University Kaohsiung Taiwan Department of Information Engineerin I-Shou University Kaohsiung Taiwan

In this paper, an efficient Euclidean decoding algorithm is presented to solve the Berlekamp's key equation of Reed-Solomon (RS) code for correcting erasures as well as errors by replacing the initial condition of the Euclidean algorithm with the erasure locator polynomial and the Forney syndrome polynomial. By this proposed algorithm, the errata locator polynomial and errata evaluator polynomial can be obtained simultaneously without the computations of polynomial division and field element inversion. Moreover, the whole recursive decoding produce for solving Berlekamp's key equation could be performed with a fixed number of iterations. And, the weights used to reduce the degree of the errata evaluator polynomial at each iteration can be extracted from the coefficient of fixed degree. As a consequence, the complexity of RS decoder to correct both errors and erasures is reduced substantially. Therefore, this proposed algorithm provides more modular, regular and simple for both software and hardware implementation. An example using this proposed algorithm is given for a (255,239) RS code for correcting erasures and errors with s + 2v /spl les/ 16.

关键词： Reed-Solomon codes Error correction codes Polynomials Equations Iterative decoding Hardware Error correction software algorithms Space vehicles Satellite communication

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Test Case Optimization Technique for Web Applications

Test Case Optimization Technique for Web Applications

引用

Distributed Computing and Electrical Circuits and Electronics (ICDCECE), IEEE International Conference on

作者： V Manojkumar R. Mahalakshmi Department of Computer Applications Vels Institute of Science Technology and Advanced Studies (VISTAS) Chennai India

ISBN: (数字)9798350318609

ISBN: (纸本)9798350318616

software testing is indeed an important part of the application development. In order to identify the bugs, present in the developed source code, software testing techniques are applied. The testing method considers various test cases provided to meet the software outcome on demand. The emerging growth of artificial intelligence (AI) technology and machine learning (ML) techniques reduces the complexity in test case running sequences, as the AI algorithms reduces the frequently repeated test cases, accelerating the processing depth by understanding the pattern of test logs etc. The comprehensive study is proposed on optimization of test case execution on development of web applications is given. The challenges in existing implementations such as latency, duplicate test cases, redundant test cases are considered. The proposed model is developed with a novel architecture using a case study on machine learning model named Regressive vector analysis (RV A). Since the optimization process increase the quality of the test sequence, the quantitative outcome of the test model is improved. The system achieved with accuracy of 92 % and Mathew's correlation constant (MCC) is 98%.

关键词： software testing Analytical models Machine learning algorithms Correlation Source coding software algorithms Machine learning

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Study of two-memcapacitor circuit model with semi-explicit ODE solver

Study of two-memcapacitor circuit model with semi-explicit O...

引用

Open Innovations Association (FRUCT), Conference of

作者： Denis N. Butusov Valerii Y. Ostrovskii Artur I. Karimov Dmitriy A. Belkin Department of Computer-Aided Design Saint Petersburg Electrotechnical University “LETI” Saint Petersburg Russia

This article discusses software tools for studying non-linear dynamical systems. For a detailed analysis of the behavior of chaotic systems stepsize-parameter diagrams are introduced. A new self-adjoint semi-explicit algorithm for the numerical integration of differential equations is described. Two modifications of the proposed method are represented. A two-memcapacitor circuit is selected as a test dynamical system. Symmetry, accuracy and performance analysis of semi-explicit extrapolation ODE solver are considered in a series of computational experiments. Phase space of the two-memcapacitor circuit model, stepsize-parameter diagrams and dynamical maps are given as experimental findings.

关键词： Hafnium software tools Heuristic algorithms Algorithm design and analysis software algorithms Differential equations Performance analysis

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Securing AODV against Wormhole Attacks through ARP

Securing AODV against Wormhole Attacks through ARP

引用

International Conference on Signal Processing and Communication Systems, ICSPCS

作者： Shansong Huang Raad Raad Faisel Tubbal Nidhal Odeh Sining Liu Wajid Ali Khan School of Electrical Computer and Telecommunications Engineering University of Wollongong Wollongong Australia

ISBN: (数字)9798350389630

ISBN: (纸本)9798350389647

We propose an algorithm to detect wormhole attacks based on the Address Resolution Protocol (ARP) for mobile networks which use On-demand Distance Vector (AODV) routing protocol. This novel approach differs from all existing methods, requiring no extra hardware or software equipment, and offers a simple detection method by avoiding complex calculations. Wormhole attacks, being among the most harmful, can result in data theft, discarding, tampering, and can even facilitate other attacks. Current defense algorithms typically require additional hardware or software and involve complex calculations at each node, sometimes failing in certain scenarios. Our algorithm aims to overcome these limitations.

关键词： software algorithms Signal processing algorithms Packet loss Signal processing software Hardware Vectors Routing protocols Reliability AODV

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Search based techniques and mutation analysis in automatic test case generation: A survey

Search based techniques and mutation analysis in automatic t...

引用

IEEE International Advance Computing Conference, IACC

作者： Meenu Dave Rashmi Agrawal Department of Computer Science Jagan Nath University Jaipur India

ISBN: (纸本)9781479980482

Mutation testing is an effective adequacy criteria and has been researched upon a lot in the past decades, but lacks practical application due to its high cost. Mutation testing for test data generation has not been studied much. This paper is an up-to-date review of the technologies that have been applied with mutation testing for automatic generation of test data which is optimized regarding time, cost and code coverage. The survey reveals an increase in interest regarding the meta-heuristic techniques along with mutation testing.

关键词： software engineering Testing Evolutionary computation software software algorithms Reliability

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