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11581
Classification of the optimal rebalancing frequency for pairs trading using machine learning techniques
Published 2024-12-01“…Selection of the optimal rebalancing frequency (ORF) is crucial for the pair trading algorithm (PTA) that periodically rebalances the allocation of two assets. …”
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11582
Gear Cutting Machining of Klingelnberg Cyclo-palloid Bevel Gear based on Monolithic Cutter Disc
Published 2018-01-01“…According to the structure parameters of two-part cutters,the method for designing cutter-head and cutter blade of monolithic cutter disc is proposed.According to the curvature relationship between the meshed tooth flanks,a method for determining the amount of modification of cutter radius is established by iteration algorithm. According to the cutting principle and gear meshing theory,the formula for calculating the machine setting parameters and cutter parameters are derived.The processing experiment is completed on domestic CNC spiral bevel gear cutting machine with monolithic cutter disc. …”
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11583
Acoustic Signal Aided Detection Method of Spiral Bevel Gears Based on PSO-MCKD
Published 2024-01-01“…Combined with the particle swarm optimization(PSO) algorithm and the maximum correlated kurtosis deconvolution(MCKD) based signal processing methods, the effect of different axial deviations on the gear mesh acoustic signals is investigated. …”
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11584
Study on the Dynamic Data Acquisition Method of Poly-rib Belt
Published 2017-01-01“…At last,the marking signs that have become several kinds of typically deformable are recognized by using the this algorithm and Hough transform detection method,then comparing the errors between the two methods and analyzing correlation of the dynamic data which is obtained by the experiment and the laser rangefinder. …”
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11585
Availability Optimization of Multicomponent Products with Economic Dependence under Two-Dimensional Warranty
Published 2021-01-01“…Firstly, a single-component two-dimensional (2D) preventive maintenance (PM) availability model is established, and the simulated annealing algorithm is adopted to calculate the optimal 2D PM interval to achieve the maximal availability of any single component. …”
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11586
Trajectory Tracking of a Flexible Robot Manipulator by a New Optimized Fuzzy Adaptive Sliding Mode-Based Feedback Linearization Controller
Published 2020-01-01“…Finally, a multiobjective particle swarm optimization algorithm is used to find the optimum fuzzy rules. …”
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11587
Numerical Analysis for a Fractional Differential Time-Delay Model of HIV Infection of CD4+ T-Cell Proliferation under Antiretroviral Therapy
Published 2014-01-01“…In addition, we describe the dynamic behaviors of the fractional HIV model by using the Adams-type predictor-corrector method algorithm. At last, we extend the model to incorporate the term which we consider the loss of virion and a bilinear term during attacking the target cells.…”
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11588
Trajectory design and bandwidth allocation strategy in UAV-assisted MEC network
Published 2023-12-01“…The unmanned aerial vehicle (UAV)-assisted mobile edge computing (MEC) network, where the UAV can be used as a mobile base station to collect data from the multiple user devices was studied.Since it should satisfy the UAV velocity constraint, the system computation latency constraint, and the system communication latency constraint, a joint scheme of bandwidth allocation and UAV 3D trajectory was proposed to minimize the total energy consumption of the network.The corresponding non-convex optimization problem that is difficult to solve was converted into two sub-optimization problems, which are the UAV 3D trajectory optimization subproblem by fixing bandwidth allocation, and the user equipment bandwidth allocation subproblem by fixing UAV 3D trajectory.Experiments demonstrate that the energy consumption of the proposed algorithm is less than that of the other two typical algorithms.Furthermore, the theoretical basis for solving the limited resource and energy problem in UAV-assisted MEC network was provided.…”
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11589
Inverse Kinematics and Reachable Workspace of UPS/UPR/SP Parallel Mechanism
Published 2022-04-01“…Firstly,the degree of freedom of UPS/UPR/SP parallel mechanism is analyzed by using screw theory,and the degree of freedom of the mechanism is analyzed and verified based on the improved Kutzbach-Grübler formula; then,particle swarm optimization (PSO) algorithm and closed vector method are used to solve the forward and inverse solutions of the mechanism,and the reachable workspace of the mechanism is solved by using the limit search method in Matlab software; Finally,the mechanism is applied to the express sorting with high accuracy of position accumulation. …”
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11590
An Efficient Cluster Head Selection Approach for Collaborative Data Processing in Wireless Sensor Networks
Published 2015-06-01“…This paper proposes an efficient cluster head selection approach for collaborative data processing in WSNs. The proposed algorithm designs an effective energy-efficient model to select the optimal cluster heads among all nodes fairly, which helps to reduce the impact of the monitoring scheme on the lifetime of network. …”
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11591
A GenEO Domain Decomposition method for Saddle Point problems
Published 2023-03-01“…We introduce an adaptive element-based domain decomposition (DD) method for solving saddle point problems defined as a block two by two matrix. The algorithm does not require any knowledge of the constrained space. …”
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11592
H∞ Estimation for a Class of Lipschitz Nonlinear Discrete-Time Systems with Time Delay
Published 2011-01-01“…Finally, through guaranteeing the positivity of the minimum, a sufficient condition for the existence of the H∞ estimator is proposed and the estimator is derived in terms of Riccati-like difference equations. The proposed algorithm is proved to be effective by a numerical example.…”
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11593
Fault Diagnosis of Rolling Bearings based on VMD and Symmetric Difference Energy Operator Demodulation
Published 2017-01-01“…First of all,the rolling bearing vibration signals are decomposed by VMD algorithm,a number of modal components are got. Secondly,according to the maximum kurtosis criterion,the modal component demodulated by symmetric difference energy operator is selected. …”
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11594
Imbalanced Data Sets Classification Based on SVM for Sand-Dust Storm Warning
Published 2015-01-01“…In view of the SVM classification for the imbalanced sand-dust storm data sets, this paper proposes a hybrid self-adaptive sampling method named SRU-AIBSMOTE algorithm. This method can adaptively adjust neighboring selection strategy based on the internal distribution of sample sets. …”
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11595
Limited Incisional Drainage and Negative-Pressure Wound Therapy in an Acute Morel-Lavallée Lesion
Published 2021-03-01“…However, there is no clearly established treatment algorithm. In the acute stage, it is mainly treated with aspiration, simple compression, and incisional drainage. …”
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11596
Design of Reverse Curves Adapted to the Satellite Measurements
Published 2016-01-01“…This is a sequential operation involving successive parts of the mentioned layout. This universal algorithm can be easily applied to the computer software which will allow generating, in an automatic way, other geometrical layouts. …”
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11597
Theory and Application of Vessel Speed Dynamic Control considering Safety and Environmental Factors
Published 2022-01-01“…In the second stage, the speed dynamic control model considering safety and environmental factors is established by combining multisource data and particle swarm optimisation algorithm. The model’s superiority and advantage are validated by experiments conducted on an ocean-going ship. …”
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11598
Earth Pressure on Retaining Wall with Surface-Inclined Cohesive Fill Based on Principal Stress Rotation
Published 2021-01-01“…The proposed method is compared with the existing algorithm, and the influences of the inclination and the cohesion of the fill are analyzed. …”
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11599
Multi-sensor image fusion based on contrast and directional features optimization
Published 2018-12-01“…Then, we compute the decomposition coefficients of visible and infrared images using a low-pass filter on the decomposed data; and finally, we introduce the whale optimization algorithm to search optimal coefficients to reconstruct the final fusion image. …”
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11600
State Companies as Claimants Under the 1965 Washington Convention on Investment Disputes Between States and Foreign Persons
Published 2023-03-01“…In addition, the author proposes an algorithm for determining whether a state-owned company, which is authorized to exercise elements of state power, has the right of action.…”
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