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4281
Design of key technologies for intranet dynamic gateway based on DPDK
Published 2020-06-01“…Aiming at the problems of high packet processing delay and high overhead caused by IP hopping,active defense gateway system with multi-layer network deployment structure was designed and implemented based on the data plane development kit (DPDK).Firstly,based on the DPDK fast forwarding framework,forwarding and processing performance of the system were optimized.Secondly,for the dynamic random mapping gateway with three different types of IP addresses,an efficient IP address allocation algorithm and an unpredictable IP address conversion algorithm were designed.The experimental results show that the designed system can effectively reduce the rate of information acquisition of sniffing attack,while greatly improving the processing delay caused by dynamic hopping.…”
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4282
Coordinated beamforming for cognitive multi-cell networks with wiretap channels
Published 2014-11-01“…Owing to the coupling among the vectors to be optimized,the problem becomes non-convex and non-linear.Accordingly,a centralized coordinated beamforming design method was proposed by constraining the leakage interference and using the semi-definite relaxation,and on the base of it,a decentralized algorithm was also proposed by decomposing the centralized design problem into a group of sub-problems on each cell’s base by using dual decomposition.Simulation results show that the proposed schemes make effective reduction in power consumption while guarantee the legal users’ secrecy rate requirement and the cognitive interference constraint.Moreover,the proposed decentralized method not only reduces the computational complexity,but also has the same performance as the centralized algorithm.…”
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4283
Environmental and Economic Dispatching of Fire-Wind Combined System Based on Improved MOPSO
Published 2025-01-01“…Then, an improved multi-objective particle swarm optimization algorithm, LRMOPSO, is proposed by combining multi-objective particle swarm optimization algorithm, Levy flight jamming strategy and reverse learning strategy. …”
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4284
Improved RRT*-Connect Manipulator Path Planning in a Multi-Obstacle Narrow Environment
Published 2025-04-01“…During the node expansion process, an adaptive step-size method is introduced to dynamically adjust the step size based on the obstacle information, while a node rejection strategy is used to accelerate the search process so as to generate a near-optimal collision-free path. …”
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4285
Conceptual semantic enhanced representation learning for event recognition in still images
Published 2022-12-01“…On that basis, an image event recognition algorithm (CS-IER) based on concept score is proposed, while multi-view learning is applied to fuse concept score and inter-conceptual semantics relations. …”
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4286
Research on Network Handover Based on User Movement Prediction in Visible Light Communication and Wi-Fi Heterogeneous Networks
Published 2025-02-01“…Extracting meaningful and important location points from massive trajectory data for clustering, an improved hidden Markov model is used to predict the user’s next location by analyzing the patterns of the user’s historical mobile trajectory data. The Q-learning algorithm is then used to determine the optimal network handover based on the current network state, while a seamless handover protocol is introduced to ensure successful network transition and uninterrupted data transmission. …”
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4287
Development and Validation of a Discrete Element Simulation Model for Pressing Holes in Sowing Substrates
Published 2025-04-01“…A neural network model for predicting the angle of repose was constructed, and a genetic algorithm was applied to optimize the significant contact mechanical parameters. …”
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4288
Secure Latency-Aware Task Offloading Using Federated Learning and Zero Trust in Edge Computing for IoMT
Published 2025-01-01“…Within FL, an improved on-policy temporal difference control algorithm is leveraged for local model training. Moreover, this algorithm determines the optimal offloading strategy based on the global model while considering trustworthiness, the heterogeneous nature of tasks, resource availability, and latency. …”
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4289
Bayesian adaptation in Poisson cognitive systems
Published 2019-09-01“…In particular, to describe the stochastic properties of cognitive systems and the possibility of creating an optimal algorithm, the Bayesian approach recognized in a number of philosophical works is applied.The optimal estimate by the criterion of the minimum standard error is, as is known, a posteriori mathematical expectation of a random estimated value, which is applied in this work. …”
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4290
Prioritized Multi-task Motion Coordination of Physically Constrained Quadruped Manipulators
Published 2025-01-01“…The framework can adaptively generate optimal motion for different parts of the robot considering 3 prioritized tasks. …”
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4291
Digital-twin driven alignment control method for marine shafting with air spring vibration isolation system
Published 2025-01-01“…To obtain the optimal air spring pressures, the genetic algorithm is introduced to solve the optimization problem, fully exploiting its global search capacity. …”
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4292
A location semantic privacy protection model based on spatial influence
Published 2025-04-01“…Finally, the problem of synthesizing dummy trajectories is transformed into a matching problem for directed bipartite graphs and the optimal k-anonymity set is obtained using the Kuhn Munkres algorithm. …”
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4293
Smart IoT-driven precision agriculture: Land mapping, crop prediction, and irrigation system.
Published 2025-01-01“…The experimental results demonstrated that fuzzy logic has faster calibration rate of 66.23% and helps to save around 61% water in comparison to average logic algorithm. The implementation of a fuzzy logic algorithm significantly optimized water usage compared to traditional manual irrigation methods. …”
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4294
Energy Efficiency Maximization through Cooperative Transmit and Receive Antenna Selection for Multicell MU-MIMO System
Published 2013-01-01“…With this function, we can transform the whole system optimization problem to a sectional optimization problem and obtain a suboptimal antenna set using a heuristic algorithm. …”
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4295
Enhanced Oil Recovery for ASP Flooding Based on Biorthogonal Spatial-Temporal Wiener Modeling and Iterative Dynamic Programming
Published 2018-01-01“…At last, the IDP algorithm is applied to solve the enhanced oil recovery problem for ASP flooding based on the identification model to obtain the optimal injection strategy. …”
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4296
Configuring adaptive PID-controllers of the automatic speed control system of the GTE
Published 2020-12-01“…This is conditioned by two factors: the complexity of solving the problem as a whole and the presence of a large number of technically diverse situations that need to be adapted and optimized. …”
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4297
A LIFE EVALUATION METHED FOR FRONT AXLE BASED ON FRONT AXLE DYNAMICS MODEL
Published 2025-04-01“…Then, with the goal of minimizing the difference between the damage/life of the front axle and the reference value under each working condition, the adjustment coefficient of the amplitude of the three-way forces at the wheel center was optimized by combining the response surface method and genetic algorithm. …”
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4298
A method of identification and localization of tea buds based on lightweight improved YOLOV5
Published 2024-11-01“…The Fuding white tea bud image dataset was established by collecting Fuding white tea images; then the lightweight network ShuffleNetV2 was used to replace the YOLOV5 backbone network; the up-sampling algorithm of YOLOV5 was optimized by using CARAFE modular structure, which increases the sensory field of the network while maintaining the lightweight; then BiFPN was used to achieve more efficient multi-scale feature fusion; and the introduction of the parameter-free attention SimAm to enhance the feature extraction ability of the model while not adding extra computation. …”
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4299
RWP-NSGA II: Reinforcement Weighted Probabilistic NSGA II for Workload Allocation in Fog and Internet of Things Environment
Published 2024-01-01“…This method uses domain-specific knowledge to improve convergence and solution quality, resulting in reduced delay and better energy efficiency compared to traditional NSGA II and other evolutionary algorithms. The results demonstrate that the proposed algorithm reduces delay by nearly 2 s while also achieving an improvement in energy efficiency, surpassing the state of the art by nearly 3 units.…”
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4300
DMCM: Dwo-branch multilevel feature fusion with cross-attention mechanism for infrared and visible image fusion.
Published 2025-01-01“…Additionally, a lightweight cross-attention fusion module is introduced, optimizing the use of differential and shared features while minimizing computational complexity. …”
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