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4841
3D Point Cloud Simplification Based on k-Nearest Neighbor and Clustering
Published 2020-01-01“…While the reconstruction of 3D objects is increasingly used today, the simplification of 3D point cloud, however, becomes a substantial phase in this process of reconstruction. …”
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4842
Design of precoding matrices in MIMO full duplex two-way security communication system
Published 2020-10-01“…The design of precoding matrices was studied in the multiple input multiple output (MIMO) full-duplex two-way security communication system where legitimate nodes transmit the confidential information accompanied by the artificial noise while receiving information.For the scenario where the perfect channel state information (CSI) of legitimate channels and eavesdropping channels was available,the difference of concave/convex (DC) programming was used to optimize the precoding matrices of the information signal and the artificial noise for the maximization of the secrecy sum rate.For the scenario where the CSI was imperfect,the channels were modeled by using worst-case criterion and the weighted minimum mean square error algorithm was used to get the robust precoding matrices of the information signal and the artificial noise.The simulation results prove that the proposed algorithm can effectively promote the secrecy sum rate of the system.…”
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4843
Research on accurate ranging of UWB under indoor environments
Published 2007-01-01“…The accurate ranging ability of ultra wideband(UWB) signal under IEEE 802.15.4a indoor channel model was studied.An improved time-of-arrival(TOA) estimation algorithm which utilizes region search and threshold comparison was proposed.By statistical analysis on certain characteristics of the CM1 and CM2 channel profiles,the probability model of TOA estimation error was deduced.The thresholds of the proposed TOA estimation algorithm were then set by limiting the error probability to the lowest level.The mean absolute ranging errors under different SNR were simulated.Results show that high enough SNR should be guaranteed in order to obtain centimeter-level ranging precision under in-door environments,while extremely high SNR would not help to improve the ranging precision any more but lead to a performance floor.The results have instructional significance on designing localization algorithms and transmission power control in practical ranging.…”
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4844
The algorithnt software program for cakulating the mechanical parameters of multilayer rod
Published 2004-12-01“…The algorithm of the program assumes that the model multilayer structural elements is idealized, i.e. uniaxial stretching, which is simple and quite adequate. …”
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4845
Research on the optimization method of emergency material post transportation model based on bi-level programming
Published 2020-09-01“…Emergency logistics is a special logistics activity that protects the need of personnel,materials and funds in the event of a major emergency.In the post transportation model of emergency supplies,how to quickly and accurately deliver a large amount of rescue materials to the place of need is a huge challenge to emergency logistics.The logistics cost and the logistics time in the entire logistics process could be minimized by the bi-level planning method while meeting the demand for emergency supplies at the demand point.The bi-level programming model was constructed with the minimum logistics cost of the upper layer and the shortest logistics time of the bottom layer as the goal,and a hybrid tabu search genetic algorithm (HTSGA) was designed to solve the model,which solved the problem of emergency logistics transportation route optimization after the disaster.Finally,the experimental result comparison verified the effectiveness of the model and algorithm.…”
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4846
Processing of Scheduling Problems in the Job Shop Using Fuzzy Logic
Published 2010-06-01“…To achieve the aims of the research , an algorithm for scheduling jobs has been achieved in the job shop which treats N jobs ( J1, J2,…..Jn) on M machines (M1, M2,….Mm) . …”
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4847
Power Control in Distributed Wireless Sensor Networks Based on Noncooperative Game Theory
Published 2012-12-01“…Results from both simulation and real testbed presented the robustness and rapid convergence of NPC algorithm. Furthermore, the network performance can remain in a promising state while the energy consumption is greatly decreased.…”
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4848
Pickup and delivery planning for the crowdsourced freight delivery routing problem.
Published 2025-01-01“…The objective is to minimize total service costs, including fixed vehicle costs, transportation costs, and penalty costs for delays, while planning routes that cover all orders. To solve this combinatorial optimization problem, we propose an improved partheno genetic algorithm (IPGA) and a simulated annealing algorithm (SA). …”
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4849
A Real-Time Image Encryption Method of Networked Inverted Pendulum Visual Servo Control System
Published 2020-01-01“…Generally, the inverted pendulum images are directly transmitted via the network, while these images are not secure because they may be attacked by the hacker. …”
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4850
Microservice selection approach for mobile users in edge computing environment
Published 2025-05-01“…Then, a microservice deployment algorithm based on EGI was designed to achieve low-latency and high-hit-rate deployment. …”
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4851
Minimizing maximum cost in task coverage problem with multiple mobile sensors: A heuristic approach based on all-pairs shortest path
Published 2017-11-01“…This is a challenging issue for various sensor applications, particularly those related to time-critical missions, such as search and rescue operations. We propose an algorithm that selects a set of all-pairs shortest paths with fewer duplicated tasks and extends each path using remaining tasks while covering all tasks and avoiding cost increases. …”
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4852
Auxiliary Stopping Area Layout Method for High-Speed Maglev considering Multiple Speed Profiles and Bidirectional Operation
Published 2021-01-01“…Aiming at the layout of the ASA along the track, this article constructs an optimized model of ASA layout and proposes a solving algorithm based on the single target genetic algorithm by analyzing the influence factors of ASA layout. …”
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4853
Image De-Noising Based On Wavelet Transform and Block Matching
Published 2023-01-01“…The algorithm is based on block matching and wavelet transformation. …”
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4854
Eecs-fl: energy-efficient client selection for federated learning in AIoT
Published 2025-03-01“…We formulate the client selection problem as a multi-dimensional knapsack problem (MKP) and solve it using dynamic programming to maximize energy efficiency while maintaining fast convergence. Experimental results show that incorporating WPT leads to a reduction in unit energy consumption by over 24.54%; while, the proposed algorithm achieves a reduction of over 15.31% compared to random selection. …”
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4855
YOLO-SMUG: An Efficient and Lightweight Infrared Object Detection Model for Unmanned Aerial Vehicles
Published 2025-03-01“…The model incorporates an enhanced backbone architecture that integrates the lightweight Shuffle_Block algorithm and the Multi-Scale Dilated Attention (MSDA) mechanism, enabling effective small object feature extraction while significantly reducing parameter size and computational cost without compromising detection accuracy. …”
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4856
Using Time Clusters for Following Users’ Shifts in Rating Practices
Published 2017-12-01“…The proposed algorithm incorporates the aforementioned concept and is able to follow more successfully shifts in users’ rating practices. …”
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4857
Two-Step Unconditionally Stable Noniterative Dissipative Displacement Method for Analysis of Nonlinear Structural Dynamics Problems
Published 2021-01-01“…When solving structural dynamic problems, the displacement algorithm needs only calculating and storing structure’s displacements in the main calculation process, which makes the displacement algorithm have advantages over multivariable algorithms in calculation efficiency and storage requirements. …”
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4858
Supervised Paragraph Vector: Distributed Representations of Words, Documents and Class Labels
Published 2019-01-01“…Paragraph Vector is one of such algorithms, which extends the word2vec algorithm by considering the paragraph as an additional word. …”
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4859
Swarm based Heuristic Optimization of the Recurrent Customers and Standby Server Under General Retrial Times
Published 2025-08-01“…The results revealed that these algorithms successfully minimized operational costs while maintaining optimal system efficiency. …”
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4860
Multi-Objective Path Optimization Method for Maritime UAVs Equipped with Inertial Navigation Systems
Published 2025-04-01“…The comparative results demonstrate that, while satisfying the positioning error requirements, our proposed method achieves a reduction of over 1.5% in total flight distance for maritime UAVs compared to the NSGA-II algorithm.…”
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