Minimum-cost network hardening algorithm based on stochastic loose optimize strategy by Guang-sheng ZHAO, Qing-feng CHENG, Yong-lin SUN

“…To construst a minimum-cost network hardening (MCNH) scheme in large-scale network,a stochastic loose optimize strategy based algorithm (MCNHA-SLOS) was proposed,and its effectiveness was analyzed.MCNHA-SLOS was a near-optimal approximation algorithm,which could achieve iterative computations in the array of sparse spaces of the whole plan space,so that the near-optimal scheme must exist in the low cost plan space.Instantiation analysis and experimental results show that the MCNHA-SLOS algorithm to be efficient,precision controllable and asymptotically optimal,and thus very applicable for large-scale network.…”
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Oscillation Solutions for Nonlinear Second-Order Neutral Differential Equations by Omar Bazighifan, Nawa Alshammari, Faten Aldosari, Loredana Florentina Iambor

“…By leveraging an innovative iterative technique, new relationships are established to enhance the monotonic properties of positive solutions. …”
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Coordinated beamforming design in downlink multi-cell multi-user wireless networks by Pei-zhong XIE, Bao-yu ZHENG, Wen-jing YUE

“…To obtain the good sum-rate performance in multi-cell multi-user wireless networks with frequency reuse,coordinated beamforming design problem of co-channel interference mitigation was studied.Theoretical analysis results with the game theory show that,the collaborative beamforming vector of the optimal performance is a linear combination of selfishness and altruism strategy.A beamforming vector iteration algorithm to maximize sum-rate was presented,and estimation method about composite coefficient based on the statistic of channel state information was proposed.Finally， the results of simulation assess the performance of the algorithm and show convergence of the proposed algorithm.…”
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Variable Weighted Ordered Subset Image Reconstruction Algorithm by Jinxiao Pan, Tie Zhou, Yan Han, Ming Jiang

“…We propose two variable weighted iterative reconstruction algorithms (VW-ART and VW-OS-SART) to improve the algebraic reconstruction technique (ART) and simultaneous algebraic reconstruction technique (SART) and establish their convergence. …”
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Maximum likelihood self-calibration for direction-dependent gain-phase errors with carry-on instrumental sensors:case of deterministic signal model by WANG Ding1, PAN Miao2, WU Ying1

“…Aim at the self-calibration of direction-dependent gain-phase errors in case of deterministic signal model,the maximum likelihood method（MLM） for calibrating the direction-dependent gain-phase errors with carry-on instrumental sensors was presented.In order to maximize the high-dimensional nonlinear cost function appearing in the MLM,an improved alternative projection iteration algorithm,which could optimize the azimuths and direction-dependent gain-phase errors was proposed.The closed-form expressions of the Cramér-Rao bound（CRB） for azimuths and gain-phase errors were derived.Simulation experiments show the effectiveness and advantage of the novel method.…”
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Robotic Measurement and Control for Chiropractic Research by P. Goldsmith, S. Wynd, G. Kawchuk

“…An algorithm for calibrating the system is proposed and tested on the robot. An iterative learning control scheme is then introduced to improve positional accuracy. …”
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Partial Differential Equations in Zero-Sum Differential Game and Applications on Coronavirus by Abd El-Monem A. Megahed, H. F. A. Madkour

“…We used analytical methods, the Homotopy Perturbation Method and New Iterative Method, for solving the partial differential equation. …”
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Positive Definite Solutions of the Matrix Equation Xr-∑i=1mAi∗X-δiAi=I by Asmaa M. Al-Dubiban

“…A sufficient condition for the equation to have a unique positive definite solution is established. An iterative algorithm is provided to compute the positive definite solutions for the equation and error estimate. …”
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On an Initial Boundary Value Problem for a Class of Odd Higher Order Pseudohyperbolic Integrodifferential Equations by Said Mesloub

“…On the basis of the obtained results for the linear problem, we apply an iterative process in order to establish the well-posedness of the nonlinear problem.…”
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Analysis of Meshing Characteristic and Return Clearance of Precision Cycloid Transmission for Robot by Zhang Liyong, Zhou Hongkai, Wang Changlu, Qiao Xuetao

“…The influence of different tooth modification methods on the number of meshing teeth,force and distortion of each mesh point and the return clearance of cycloid transmission is calculated through iterative method. Furthermore,the influence of the load on the meshing characteristic is analyzed,and the stiffness curve of the cycloid transmission is obtained with the increase of load. …”
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Multiple Depots Vehicle Routing Problem in the Context of Total Urban Traffic Equilibrium by Dongxu Chen, Zhongzhen Yang

“…Feedback between upper model and lower model is iterated through OD trips; thus total traffic equilibrium can be simulated.…”
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Instruction flow mining algorithm based on the temporal sequence of node communication actions by Yingzhuo XIANG, Zhengguo XU, Ling YOU

“…With the situation that the content of the communication between the nodes in the network is unknown,an instruction flow mining algorithm based on the communication sequence was proposed.Firstly,by modelling the relativity of the communication actions and proposing the node communication actions model,the background communication and instruction communication actions was modelled.Moreover,FlowMine algorithm was proposed to solve such models and the convergence of the algorithm was analyzed.The algorithm estimated parameters by sampling and iteration which obtained a near optimal solution.Finally,the validity of the approach was verified by synthetic data and empirical data analysis.Experiment results show the convergence and reliable performance of FlowMine algorithm.…”
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A Novel Filled Function Method for Nonlinear Equations by Liuyang Yuan, Qiuhua Tang

“…The objective function value can be reduced by quarter in each iteration of our algorithm. The implementation of the algorithm on several test problems is reported with satisfactory numerical results.…”
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The Hybrid BFGS-CG Method in Solving Unconstrained Optimization Problems by Mohd Asrul Hery Ibrahim, Mustafa Mamat, Wah June Leong

“…In comparison to standard BFGS methods and conjugate gradient methods, the BFGS-CG method shows significant improvement in the total number of iterations and CPU time required to solve large scale unconstrained optimization problems. …”
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Hβ-Hausdorff Functions and Common Fixed Points of Multivalued Operators in a b-Metric Space and Their Applications by Fahad Sameer Alshammari, Naif R. Alrashedi, Reny George

“…In order to demonstrate applications of our result, we have proven an existence theorem for a unique common multivalued fractal of a pair of iterated multifunction systems and also an existence theorem for a common solution of a pair of Volterra-type integral equations.…”
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Feedforward and Feedback Control Performance Assessment for Nonlinear Systems by Zhiguo Wang, Jun Chen

“…First, the existence of minimum variance performance bound for two nonlinear systems with different structures is analyzed, and the closed-loop model of nonlinear system is obtained with the help of iterative orthogonal least squares identification method. …”
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Research and application of remote update technology of IoT terminal by Min WEI, Yi WANG

“…Remote updating of IoT terminal is the basis of supporting its iterative optimization,large-scale deployment and low-cost maintenance.The contradiction between the present status of remote updating of IoT terminals and the requirement of unified management and control was analyzed.Based on LWM2M protocol,a solution of remote updating of IoT terminals was proposed.In this solution，IoT platform provides the unified management and control of IoT terminals with heterogeneous operating systems and multi-model terminals，which helps reducing the impact of terminal scale updating on the network and improving the generality,reliability and stability of remote updating.…”
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Adaptive modulation technology in LTE-Advanced system by Hongguang DUAN, Li HU, Mei TIAN

“…Adaptive modulation technology is an important research content of AMC technology in LTE-Advanced system.The β value of new MCS levels were studied,in which the higher order modulation 256QAM was used,then the general β value of new MCS levels by the iterative algorithm in several different channel models were obtained,according to the convexity of the mean square error function,and compared with the traditional MCS levels.The simulation results show that the new MCS levels provide higher system performance when SNR is high,and the optimized β value makes CQI calculation more accurately.…”
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BAYESIAN STATISTICAL FUSION RELIABILITY EVALUATION MODEL OF MULTI-SOURCE HETEROGENEOUS DATA by TANG Li, TANG JiaYin, CHENG ShiJuan

“…Then, it as the prior distribution of the next information source was used. Through iteration, the joint posterior density and reliability index data of multi-source heterogeneous data are obtained, and the corresponding reliability analysis is completed. …”
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VLSI Architectures for Sliding-Window-Based Space-Time Turbo Trellis Code Decoders by Georgios Passas, Steven Freear

“…The VLSI implementation of SISO-MAP decoders used for traditional iterative turbo coding has been investigated in the literature. …”
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