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13081
Millimeter-Wave Underlay D2D Communications: Channel Assignment, Transmission mode Selection and Power Control for Full-CSI and Limited-CSI Scenarios
Published 2024-02-01“…As the optimization problem is mixed-integer-non-linear programming, two heuristic algorithms are proposed, assuming full Channel Side Information (CSI) and limited CSI at Base Station, respectively. …”
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13082
COVID-19 Diagnosis from Blood Gas Using Multivariate Linear Regression
Published 2024-03-01“…In the study, the RMSProp optimization algorithm has a success rate of 58-91.23% in all measurement methods, and it is seen that it is much more successful than other optimization algorithms.…”
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13083
Traceability permissioned chain consensus mechanism based on double-layer architecture
Published 2019-04-01“…The blocks in the blockchain are arranged in chronological and historical order,and the blockchain is incapable of modification through data encryption technology and consensus mechanism,which makes product trace ability to be an important application scenario of blockchain.To choose product information traceability technology,not only the feasibility of the technology but also the market attributes of the product and the producer should be considered,which makes the permissioned chain replace the public chain as an important deployment method of product information traceability.In the existing research results,the research on the traceability license chain mainly focuses on mechanism design and framework construction,and the consensus algorithm applicable to product information traceability is rarely studied.In the process of technology of engineering practice,practical byzantine fault tolerance was chosen more in league chain as the consensus of traceability chain mechanism (such as Hyperledger),but with the increasing number of participating nodes of the traceability chain efficiency will be significantly reduced,and the delay time will be significantly improved,resulting in most of the project is still in the stage of experiment.Based on this,a traceability license chain consensus mechanism based on double-layer architecture (DLPCM) is proposed,and its security is analyzed.Participants are divided into two layers on the vertical dimension,and different consensus mechanisms are adopted at different levels according to different deployment modes of blockchain.Finally,the traceability information query mechanism under the consensus mechanism is introduced,an important reference for the development and design of traceability system based on license chain is provided.…”
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13084
Adaptive Navigating Control Based on the Parallel Action-Network ADHDP Method for Unmanned Surface Vessel
Published 2019-01-01“…Therefore, the adaptive stability design can greatly improve the navigating control and effectively overcome the ADHDP algorithm limitation. Thus, this adaptive control can be one of the intelligent ADHDP control methods. …”
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13085
Quantifying Spatiotemporal Dynamics of Solar Radiation over the Northeast China Based on ACO-BPNN Model and Intensity Analysis
Published 2017-01-01“…In this study, a new backpropagation neural network (BPNN) model optimized with an Ant Colony Optimization (ACO) algorithm was developed to generate the ACO-BPNN model, which had demonstrated superior performance for simulating solar radiation compared to traditional BPNN modelling, for Northeast China. …”
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13086
Fast agglomerative clustering using approximate traveling salesman solutions
Published 2025-01-01“…For a dataset of size 1.28 million, the proposed method achieves a speedup factor of 25:1 compared with the best exact implementation of Ward’s method and obtains identical results. The algorithm allows a flexible compromise between clustering quality and running time. …”
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13087
Intelligent reflecting surface design for 6G-assited Internet of things
Published 2020-06-01“…In the era of the 6G cellular networks,the base station (BS) should be able to provide seamless connectivity for a large number of Internet of things (IoT) devices distributed in various areas.However,constrained by their locations,some IoT devices may possess unreliable communication channels to the BS due to the obstacles between them.It is a big obstacle on the roadmap towards the massively connected IoT networks in the era of 6G .To tackle this challenge,the possibility was studied to employ the newly emerging technique of intelligent reflecting surface (IRS) for enhancing the strength of the IoT devices’ signals at the BS.Specifically,the transmit power minimization problem in an uplink IoT communication system was focused on,where the overhead for channel estimation was taken into account.On one hand,for the case where the BS was equipped with a small or moderate number of antennas,an iterative algorithm was proposed to jointly optimize the user power allocation,the IRS reflecting coefficients,and the BS beamforming vectors.On the other hand,for the case where the BS had a massive number of antennas,i.e.…”
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13088
Spatio-Temporal Joint Trajectory Planning for Autonomous Vehicles Based on Improved Constrained Iterative LQR
Published 2025-01-01“…This paper introduces three key improvements: a segmented barrier function truncation strategy with dynamic relaxation factors to enhance stability, an adaptive weight parameter adjustment method for acceleration and curvature planning, and the integration of the hybrid A* algorithm to optimize the initial reference trajectory and improve iterative efficiency. …”
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13089
Online Modal Identification of Concrete Dams Using the Subspace Tracking-Based Method
Published 2019-01-01“…The online modal identification of concrete dams is expressed as a subspace tracking problem, and a newly developed recursive stochastic subspace identification (RSSI) method based on the generalized yet another subspace tracker (GYAST) algorithm, which exploits both the accuracy of the subspace identification and fast computational capability, is used to extract the time-varying modal parameters of concrete dams during earthquakes. …”
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13090
Simulation and Domain Identification of Sea Ice Thermodynamic System
Published 2012-01-01“…Finally, based on the nonoverlapping domain decomposition method and semi-implicit difference scheme, an optimization algorithm is proposed for the numerical simulation. …”
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13091
Micro-Doppler Ambiguity Resolution Based on Short-Time Compressed Sensing
Published 2015-01-01“…Then performing Orthogonal Matching Pursuit (OMP), the unambiguous micro-Doppler spectrum can be obtained. The proposed algorithm is verified using the echo signals generated according to the theoretical model and the signals with micro-Doppler signature produced using the commercial electromagnetic simulation software FEKO.…”
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13092
New experimental techniques for fracture testing of highly deformable materials
Published 2015-12-01“…Thanks to the implemented algorithm based on a Semi-Global Matching (SGM) approach, it is possible to constraint the regularity of the displacement field in order to significantly improve the reliability of the evaluated strains, especially in highly deformable materials. …”
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13093
Adaptive Probabilistic Proactive Routing for Dense MANETs
Published 2012-01-01“…Then, we present a distributed algorithm to collect the cartography of the network. …”
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13094
Improved Reflectarray Phase-Only Synthesis Using the Generalized Intersection Approach with Dielectric Frame and First Principle of Equivalence
Published 2017-01-01“…An improved reflectarray Phase-Only Synthesis technique which employs the generalized Intersection Approach (IA) algorithm is fully described. It is formulated with the First Principle of Equivalence and takes into account a dielectric frame which is usually present to screw the reflectarray breadboard to the supporting structure. …”
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13095
Near-Field/Far-Field Transformation with Helicoidal Scanning from Irregularly Spaced Data
Published 2010-01-01“…Once these helicoidal data have been recovered, those required by a classical cylindrical near-field/far-field transformation are efficiently determined by using an optimal sampling interpolation algorithm. Some numerical tests assessing the effectiveness of the proposed approach and its stability with respect to random errors affecting the near-field data are shown.…”
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13096
Inter-satellite link connection strategy for large-scale low earth orbit satellite networks
Published 2024-08-01“…For the large-scale LEO satellite network with a Walker-Delta constellation configuration, a shortest distance inter-satellite routing algorithm was designed based on the proposed ISL connection strategies, and system-level simulations were conducted from the perspectives of geometric topology and packet respectively to evaluate the performance of each connection strategy. …”
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13097
RSS Tracking Control for AVs Under Bayesian-Network-Based Intelligent Learning Scheme
Published 2025-01-01“…Additionally, a critic learning optimal control algorithm is developed to determine the control law. …”
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13098
Evaluation on Filter Performance of Variational Mode Decomposition and Its Application in Separating Closely Spaced Modes
Published 2020-01-01“…The initial center frequencies could be simply determined by prior estimated modal frequencies of the analyzed signal, while the constraint parameter is optimized utilizing a genetic algorithm (GA). A two-degree-of-freedom parametric system is considered to evaluate the capability of VMD in the separation of closely spaced modes. …”
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13099
Large-Time-Step-Based Ray-Tracing Modeling of Light Delivery in One-Sidedly Cladding-Removed Step-Index Plastic Optical Fiber under Arbitrary Weave Structure
Published 2018-01-01“…A large-time-step-based ray-tracing algorithm, which was improved from our previous research, was used to simulate the light vector movement in a complex weave structure efficiently. …”
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13100
Enterprise chart question and answer method based on multi modal cross fusion
Published 2025-01-01“…Additionally, we combine a key point detection algorithm to extract numerical information from the charts and convert it into structured table data. …”
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