Retracted: Improved Genetic Algorithm to Solve the Scheduling Problem of College English Courses by null Complexity

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Multimedia Motion of Picking Robot Based on Cooperative Relationship of Matching Gradient Algorithm by Jinghai Han

“…In view of the existing limitations, this study combines the gradient matching algorithm, by using a high-precision motion matching for the visual system, improves the automation precision, and, at the same time, picking fruit image smoothing and enhancement, achieves fruit edge feature extraction; the simulation experiments proved that matching the gradient algorithm is effective and can realize the visual and actions match together and support picking robot movement.…”
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Neighbor satellite load based low orbit satellite distributed routing algorithm by Mingchuan YANG, Guanchang XUE, Qingyi LI

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A dual speech encryption algorithm based on improved Henon mapping and hyperchaotic by Qiuyu ZHANG, Yujie SONG

“…Aiming at the problems of small key space, poor security, low encryption efficiency, and the inability to realize the trade-off between key complexity and encryption efficiency of existing speech chaotic encryption algorithms, a dual speech encryption algorithm based on improved Henon mapping and hyperchaotic was proposed.Firstly, the traditional Henon mapping was improved by extending the control parameter range and taking the nonlinear trigonometric function as the input parameter variable, which made the Henon mapping have larger chaotic space and higher chaotic complexity.Secondly, the improved Henon mapping was used to generate pseudorandom sequence, and the speech data was encrypted single time without repeated scrambling to obtain the first time encryption results of the speech data.Finally, Lorenz hyperchaotic system was adopted to encrypt the speech data after the first time encryption by Arnold secondary scrambling encryption and XOR diffusion encryption to obtaining the final ciphertext speech data.The experimental results show that, compared with the existing methods, the proposed algorithm have larger key space, higher encryption efficiency, and stronger robustness against various cryptographic attacks.…”
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Separation algorithm of paired carrier multiple access based on independent component analysis by WAN Jian, XU Hua, ZHU Zhong-liang

“…Based on the introduction of paired carrier multiple access（PCMA）technology,a new algorithm was proposed to separate the satellite PCMA downlink mixed signals with independent component analysis（ICA）.The new algorithm utilized maximum negentropy as the separating criterion which could overcome the limitation that the power of two up-link signals could not be different too much.The computer simulations testified the validity of the algorithm.…”
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Multi-Band mm-Wave Wearable Antenna Synthesized with a Genetic Algorithm by Arebu Dejen, Murad Ridwan, Jeevani Jayasinghe, Jaume Anguera

“…The reference patch antenna was etched on a flexible polytetrafluoroethylene (PTFE) fabric substrate with an overall dimension of 18 mm × 18 mm × 0.6 mm and optimized the patch geometry using a binary-coded genetic algorithm. The algorithm iteratively creates a new shape of the path surface, evaluates the cost function, and returns the best-fitted geometry based on the formulated fitness function. …”
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Exploration and Analysis of Collaborative Matching Algorithm Empowering Large Data Fiscal Budget by Rui Gong, Xu Zhang

“…Combined with the matching algorithm and linear regression prediction algorithm in data analysis, the financial data is analyzed in depth. …”
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WSN clustering routing algorithm based on PSO optimized fuzzy C-means by Aijing SUN, Shichang LI, Yicai ZHANG

“…Aimed at the problems of limited energy and unbalanced load in wireless sensor network, POFCA based on particle swarm optimization fuzzy C-means was proposed.POFCA was respectively optimized from the cluster stage and the data transmission stage.In the clustering stage, the particle swarm optimization fuzzy C-means was firstly used to overcome the sensitivity to the initial clustering center.And the cluster head was dynamically updated according to the remaining power and the relative distance of the nodes to balance the network load.Then in the data transfer phase, a path evaluation function was designed based on the distance factor, the energy factor and the nodal load.Besides, the cat swarm optimization was used to search the optimal routing path for the cluster head to balance the load of the cluster head without increasing the load of the relay node.The simulation result shows that compared with algorithms of LEACH and LEACH-improved, POFCA can effectively balance the network load, reduce the energy consumption of nodes and extend the lifetime of the entire network.…”
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A Novel Temperature Drift Compensation Algorithm for Liquid-Level Measurement Systems by Shanglong Li, Wanjia Gao, Wenyi Liu

“…Aiming at the problem that ultrasonic detection is greatly affected by temperature drift, this paper investigates a novel temperature compensation algorithm. Ultrasonic impedance-based liquid-level measurement is a crucial non-contact, non-destructive technique. …”
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Efficient parameter extraction in PV solar modules with the diligent crow search algorithm by Mostafa Jabari, Morteza Azimi Nasab, Mohammad Zand, Lilia Tightiz, Sanjeevikumar Padmanaban, Juan C. Vasquez Q

Subjects: “…Crow search optimization algorithm…”
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Recognizing Cow Muzzle Patterns using the Convolution Neural Network (CNN) Algorithm by Sulthon Zamroni, Giri Wahyu Wiriasto, Bulkis Kanata

“…Numerous systems and algorithms have been developed to recognize cattle, ranging from body shape, fur patterns, to specific parts of the cattle. …”
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Trisomy 21 screening with αlpha software and the Fetal Medicine Foundation algorithm by L Pistorius, C A Cluver, I Bhorat, L Geerts

“…Screening for trisomy 21 provides pregnant women with accurate risk information. Different algorithms are used to screen for trisomy 21 in South Africa (SA). …”
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Research on short-term precipitation forecasting method based on CEEMDAN-GRU algorithm by Hua Xu, Zongkai Guo, Yu Cao, Xu Cheng, Qiong Zhang, Dan Chen

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Price Prediction for Fresh Agricultural Products Based on a Boosting Ensemble Algorithm by Nana Zhang, Qi An, Shuai Zhang, Huanhuan Ma

Subjects: “…boosting ensemble learning algorithm…”
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An Optimally Generalized Steepest-Descent Algorithm for Solving Ill-Posed Linear Systems by Chein-Shan Liu

“…An optimal iterative algorithm with m-vector descent direction in a Krylov subspace is constructed, of which the m optimal weighting parameters are solved in closed-form to accelerate the convergence speed in solving ill-posed linear problems. …”
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Robust video watermarking algorithm for H.264/AVC based on texture feature by Wei-wei ZHANG, Ru ZHANG, Jian-yi LIU, Xin-xin NIU, Yi-xian YANG

“…On the basis of analyzing some existing video watermarking al ithms and combining with the new features of the H.264/AVC video coding standard,a new robust video watermarking algorithm based on texture feature was proposed.The proposed algorithm firstly performs the 4×4 integer discrete cosine transform on the current frame in purpose of identifying whether it is the texture block.Then the watermarking is embedded by adopting the way of differential energy for selecting the appropriate coefficients adaptively.The experimental result shows that the proposed algorithm has little impact on the video quality and bit-rate,moreover,its robustness can effectively resist the common attacks such as the gauss noise,low pass filter and re-coded performed on the video watermarking.…”
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Fuzzy Neural Network-Based Evaluation Algorithm for Ice and Snow Tourism Competitiveness by Ying Zhao, Qinghua Zhu, Jiujun Bai

“…Based on the construction of cloud fuzzy neural network model, the above method is used for experimental comparison analysis, and experiments are conducted through University of California Irvine (UCI) dataset and engineering examples to compare with the traditional cloud model, fuzzy neural network, and BP neural network to analyze the operation efficiency, accuracy rate, and several rules of the algorithm. Through the experimental comparative analysis, the cloud fuzzy neural network can fully take into account the randomness and fuzziness of the data, optimize the generation of cloud rules, avoid multidimensional rule disasters, and ensure the operational efficiency of the algorithm; the accuracy rate of the algorithm is improved relative to that of the traditional technology, and it applies to a variety of datasets. …”
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Extension of simultaneous Diophantine approximation algorithm for partial approximate common divisor variants by Wonhee Cho, Jiseung Kim, Changmin Lee

“…It is also confirmed experimentally that this algorithm works well.…”
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Turn-Based War Chess Model and Its Search Algorithm per Turn by Hai Nan, Bin Fang, Guixin Wang, Weibin Yang, Emily Sarah Carruthers, Yi Liu

“…Finally, we prove that both of these algorithms are optimal, and we analyze the difference between their efficiencies. …”
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Multi-link minimum change dynamic bandwidth allocation algorithm with QoS support by IANGGen L, UHe-wei Y, UNLi-min S, INYong Q

“…A multi-link minimum change dynamic bandwidth allocation (MCDBA) algorithm that supports QoS is proposed in this research.This algorithm realizes the supports of different levels of QoS and quantifies the size of bandwidth allocation.Under the condition of meeting certain QoS limitations,the minimal bandwidth changing amount is achieved.The simulation results verify that MCDBA can effectively reduce the latency of data packet and improve the system bandwidth utilization.Thus,it is believed that MCDBA can be used in the addressing of complex QoS control under large-scale multi-link access network.…”
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