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An improved low-complexity sum-product decoding algorithm for low-density parity-check codes

Michaelraj Kingston ROBERTS,Ramesh JAYABALAN

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 6,   Pages 511-518 doi: 10.1631/FITEE.1400269

Abstract: In this paper, an improved low-complexity sum-product decoding algorithm is presented for low-densityMoreover, when compared with the sum-product algorithm (SPA), the proposed decoding algorithm can achieve

Keywords： Computational complexity     Coding gain     Fast Fourier transform (FFT)     Low-density parity-check (LDPC) codes     Sum-productalgorithm (SPA)    

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Distributed optimization based on improved push-sum framework for optimization problem with multiple

徐谦,俞楚天,袁翔,韦梦立,刘洪喆

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 9,   Pages 1253-1260 doi: 10.1631/FITEE.2200596

Abstract: To this end, with the push-sum framework improved, the distributed optimization algorithm is newly designed

Keywords： Distributed optimization     Nonidentical constraints     Improved push-sum framework    

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Haloacetic acids in swimming pool and spa water in the United States and China

Xiaomao WANG,Garcia Leal M I,Xiaolu ZHANG,Hongwei YANG,Yuefeng XIE

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 820-824 doi: 10.1007/s11783-014-0712-7

Abstract: the occurrence of haloacetic acids (HAAs), a group of disinfection byproducts, in swimming pool and spa

Keywords： chlorination     disinfection byproduct     haloacetic acid     swimming pool     trihalomethane    

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Experimental investigation of fatigue behavior of spur gear in altered tooth-sum gearing

H. K. SACHIDANANDA, Joseph GONSALVIS, H. R. PRAKASH

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 3,   Pages 268-278 doi: 10.1007/s11465-012-0331-6

Abstract: This paper deals with the contact stress, power loss, and pitting of spur gear tooth in altered tooth-sumgearing for a tooth-sum of 100 teeth when altered by±4% tooth-sum.Analytical and experimental methods were performed to investigate and compare the altered tooth-sum gearingagainst the standard tooth-sum gearing.The negative alteration in the tooth-sum performed better than the positive alteration in a tooth-sum

Keywords： spur gear     power recirculating test rig     altered tooth-sum gearing     scanning electron microscopy (SEM)    

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An array of two periodic leaky-wave antennas with sum and difference beam scanning for application in Research Article

Mianfeng HUANG, Juhua LIU,liujh33@mail.sysu.edu.cn

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 4,   Pages 567-581 doi: 10.1631/FITEE.2200473

Abstract: the two LWAs, two beams with two different directions can be realized, which can be combined into a sumMeasurement results show that the sum beam can reach a gain up to 15.9 dBi and scan from -33.4° to 20.8scanning range, the direction of the null in the difference beam is consistent with the direction of the sum

Keywords： Antenna     Leaky-wave antenna (LWA)     Substrate-integrated waveguide (SIW)     Sum and difference beam     Target    

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Pathogenesis of pandemic H1N1 2009 influenza virus infection and the implication on management

Kelvin Kai-Wang TO FRCPath, Iris Wai-Sum LI FRCP, Ivan Fan-Ngai HUNG FRCP, Vincent Chi-Chung CHENG FRCPath

Frontiers of Medicine 2010, Volume 4, Issue 2,   Pages 147-156 doi: 10.1007/s11684-010-0030-9

Abstract: The pandemic H1N1 2009 influenza virus has caused the first influenza pandemic of the 21st century, leading to disproportionate fatalities in the low-risk population despite the generally mild nature of the illness. Advances in sci

Keywords： influenza A virus     H1N1 subtype     pandemic     pathogenesis     virulence factors     immunity     management     antiviral    

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Optimal synchronization control for multi-agent systems with input saturation: a nonzero-sum game Research Article

Hongyang LI, Qinglai WEI

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 7,   Pages 1010-1019 doi: 10.1631/FITEE.2200010

Abstract: This paper presents a novel method for with . The multi-agent game theory is introduced to transform the problem into a multi-agent . Then, the Nash equilibrium can be achieved by solving the coupled Hamilton–Jacobi–Bellman (HJB) equations with nonquadratic input energy terms. A novel method is presented to obtain the Nash equilibrium solution without the system models, and the critic neural networks (NNs) and actor NNs are introduced to implement the presented method. Theoretical analysis is provided, which shows that the iterative control laws converge to the Nash equilibrium. Simulation results show the good performance of the presented method.

Keywords： Optimal synchronization control     Multi-agent systems     Nonzero-sum game     Adaptive dynamic programming    

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Multi-objective optimal design of braced frames using hybrid genetic and ant colony optimization

Mehdi BABAEI,Ebrahim SANAEI

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4,   Pages 472-480 doi: 10.1007/s11709-016-0368-4

Abstract: Subsequently, using the weighted sum method (WSM), the two objective problem are converted to a single

Keywords： multi-objective     hybrid algorithm     ant colony     genetic algorithm     displacement     weighted sum method     steel    

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A new auxiliary information based cumulative sum median control chart for location monitoring Regular Papers

Shahid HUSSAIN, Li-xin SONG, Shabbir AHMAD, Muhammad RIAZ

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 4,   Pages 554-570 doi: 10.1631/FITEE.1700428

Abstract: Shewhart-type charts are efficient for large shift values, whereas cumulative sum (CUSUM) charts are

Keywords： Average run length     Auxiliary information     CUSUM control charts     Location parameter     Median control charts    

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Deceptive jamming discrimination based on range-anglelocalization of a frequency diverse array Article

Zhao-jian ZHANG, Jun-wei XIE, Chuan SHENG, Zhun TANG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 9,   Pages 1437-1446 doi: 10.1631/FITEE.1601577

Abstract: In addition, the range of thetarget can be extracted by sum-difference beam except for time-delaytesting

Keywords： Frequency diverse array (FDA)     Deceptive jamming     Range-angle coupling     Sum-difference beam     Double-pulse    

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Optimal signal design strategywith improper Gaussian signaling in the Z-interference channel Article

Dan LI, Shan WANG, Fang-lin GU

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 11,   Pages 1900-1912 doi: 10.1631/FITEE.1700030

Abstract: we also derive a closed-form solution to quickly find the circularity coefficient that maximizes the sum

Keywords： Z-interference channel     Improper Gaussian signaling     Sum-rate     Pareto boundary     Covariance     Pseudo-covariance    

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A space-saving steering method for underwater gliders in lake monitoring Article

Yu-shi ZHU, Can-jun YANG, Shi-jun WU, Qing LI, Xiao-le XU

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 4,   Pages 485-497 doi: 10.1631/FITEE.1500399

Abstract: This paper presents a space-saving steering method under a small pitch angle (SPA) for appearance-fixedSteering under an SPA increases the steering angle in per unit vertical space.Analysis is conducted to find the optimal parameters of net buoyancy and roll angle for steering under an SPAThe trial results show that steering under an SPA saves vertical space, unlike that under a large pitchIn addition, multiple-waypoint trial shows that monitoring with steering under an SPA covers a larger

Keywords： Underwater glider     Lake monitoring     Space-saving     Steering method     Small pitch angle (SPA)     Hydrodynamics    

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An efficient bi-objective optimization framework for statistical chip-level yield analysis under parameter variations

Xin LI,Jin SUN,Fu XIAO,Jiang-shan TIAN

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 2,   Pages 160-172 doi: 10.1631/FITEE.1500168

Abstract: bi-objective optimization framework based on Chebyshev affine arithmetic (CAA) and the adaptive weighted sum

Keywords： Parameter variations     Parametric yield     Multi-objective optimization     Chebyshev affine     Adaptive weighted sum    

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Minimax Q-learning design for H∞ control of linear discrete-time systems Research Articles

Xinxing LI, Lele XI, Wenzhong ZHA, Zhihong PENG,lixinxing_1006@163.com,xilele.bit@gmail.com,zhawenzhong@126.com,peng@bit.edu.cn

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 3,   Pages 438-451 doi: 10.1631/FITEE.2000446

Abstract: The method is an effective approach for attenuating the effect of disturbances on practical systems, but it is difficult to obtain the ler due to the nonlinear Hamilton–Jacobi–Isaacs equation, even for linear systems. This study deals with the design of an ler for linear discrete-time systems. To solve the related game algebraic Riccati equation (GARE), a novel model-free method is developed, on the basis of an offline algorithm, which is shown to be Newton’s method for solving the GARE. The proposed method, which employs off-policy , learns the optimal control policies for the controller and the disturbance online, using only the state samples generated by the implemented behavior policies. Different from existing -learning methods, a novel gradient-based policy improvement scheme is proposed. We prove that the method converges to the saddle solution under initially admissible control policies and an appropriate positive learning rate, provided that certain persistence of excitation (PE) conditions are satisfied. In addition, the PE conditions can be easily met by choosing appropriate behavior policies containing certain excitation noises, without causing any excitation noise bias. In the simulation study, we apply the proposed method to design an load-frequency controller for an electrical power system generator that suffers from load disturbance, and the simulation results indicate that the obtained load-frequency controller has good disturbance rejection performance.

Keywords： H∞ control     Zero-sum dynamic game     Reinforcement learning     Adaptive dynamic programming     Minimax Q-learning    

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Title Author Date Type Operation

An improved low-complexity sum-product decoding algorithm for low-density parity-check codes

Michaelraj Kingston ROBERTS,Ramesh JAYABALAN

Journal Article

Distributed optimization based on improved push-sum framework for optimization problem with multiple

徐谦,俞楚天,袁翔,韦梦立,刘洪喆

Journal Article

Haloacetic acids in swimming pool and spa water in the United States and China

Xiaomao WANG,Garcia Leal M I,Xiaolu ZHANG,Hongwei YANG,Yuefeng XIE

Journal Article

Experimental investigation of fatigue behavior of spur gear in altered tooth-sum gearing

H. K. SACHIDANANDA, Joseph GONSALVIS, H. R. PRAKASH

Journal Article

An array of two periodic leaky-wave antennas with sum and difference beam scanning for application in

Mianfeng HUANG, Juhua LIU,liujh33@mail.sysu.edu.cn

Journal Article

Pathogenesis of pandemic H1N1 2009 influenza virus infection and the implication on management

Kelvin Kai-Wang TO FRCPath, Iris Wai-Sum LI FRCP, Ivan Fan-Ngai HUNG FRCP, Vincent Chi-Chung CHENG FRCPath

Journal Article

Optimal synchronization control for multi-agent systems with input saturation: a nonzero-sum game

Hongyang LI, Qinglai WEI

Journal Article

Multi-objective optimal design of braced frames using hybrid genetic and ant colony optimization

Mehdi BABAEI,Ebrahim SANAEI

Journal Article

A new auxiliary information based cumulative sum median control chart for location monitoring

Shahid HUSSAIN, Li-xin SONG, Shabbir AHMAD, Muhammad RIAZ

Journal Article

Deceptive jamming discrimination based on range-anglelocalization of a frequency diverse array

Zhao-jian ZHANG, Jun-wei XIE, Chuan SHENG, Zhun TANG

Journal Article

Optimal signal design strategywith improper Gaussian signaling in the Z-interference channel

Dan LI, Shan WANG, Fang-lin GU

Journal Article

A space-saving steering method for underwater gliders in lake monitoring

Yu-shi ZHU, Can-jun YANG, Shi-jun WU, Qing LI, Xiao-le XU

Journal Article

An efficient bi-objective optimization framework for statistical chip-level yield analysis under parameter variations

Xin LI,Jin SUN,Fu XIAO,Jiang-shan TIAN

Journal Article

Minimax Q-learning design for H∞ control of linear discrete-time systems

Xinxing LI, Lele XI, Wenzhong ZHA, Zhihong PENG,lixinxing_1006@163.com,xilele.bit@gmail.com,zhawenzhong@126.com,peng@bit.edu.cn

Journal Article