-
2161
SKGRec: A Semantic-Enhanced Knowledge Graph Fusion Recommendation Algorithm with Multi-Hop Reasoning and User Behavior Modeling
Published 2025-07-01“…Experiments on the Amazon-Book and Last-FM datasets show that SKGRec significantly outperforms several state-of-the-art recommendation algorithms on the Recall@20 and NDCG@20 metrics. Comparison experiments validate the effectiveness of semantic analysis of user behavior and multi-hop path inference, while cold-start experiments further confirm the robustness of the model in sparse-data scenarios. …”
Get full text
Article -
2162
Optimizing Strategies in Patients Affected by Tumors Infiltrating the Skull: A Single Center Experience
Published 2025-04-01Get full text
Article -
2163
Neural Network-Based SLAM/GNSS Fusion Localization Algorithm for Agricultural Robots in Orchard GNSS-Degraded or Denied Environments
Published 2025-07-01“…Experimental results on the robotic platform demonstrate that, compared to the SLAM algorithm without pose optimization, the proposed SLAM/GNSS fusion localization algorithm reduced the whole process average position deviation by 37%. …”
Get full text
Article -
2164
Throughput-Delay Trade-Off for Cognitive Radio Networks: A Convex Optimization Perspective
Published 2014-01-01“…It is proved that the maximum achievable throughput and the minimum transmission delay cannot be obtained simultaneously. An efficient algorithm is proposed to optimize the sensing bandwidth and the final decision threshold jointly such that the throughput is maximized while the delay is constrained. …”
Get full text
Article -
2165
Network Security Situational Awareness Based on Improved Particle Swarm Algorithm and Bidirectional Long Short-Term Memory Modeling
Published 2025-02-01“…The refined Particle Swarm Optimization algorithm is applied to optimize the parameters of the BiLSTM network, enabling a rapid convergence and enhancing the training efficiency, thus effectively identifying the categories of network attacks. …”
Get full text
Article -
2166
Coordinated Optimal Dispatch of Distribution Grids and P2P Energy Trading Markets
Published 2025-05-01“…To address the nonlinear, high‐dimensional optimization challenges, an improved Convex‐Soft Actor‐Critic (C‐SAC) algorithm is developed, combining deep reinforcement learning with convex optimization to achieve privacy‐preserving distributed coordination. …”
Get full text
Article -
2167
Metamodel-Based Optimization Method for Traffic Network Signal Design under Stochastic Demand
Published 2023-01-01“…A gradient-based metamodel algorithm is then proposed. In the numerical example, a six-node test network is used to examine the proposed metamodel-based optimization method. …”
Get full text
Article -
2168
Optimizing Q-Learning for Automated Cavity Filter Tuning: Leveraging PCA and Neural Networks
Published 2025-01-01“…This paper presents a reinforcement learning-based approach to automate the tuning of a 6thorder combline bandpass filter, operating at 941 MHz, using a Q-learning algorithm. To reduce complexity, only two tuning screws are considered in the optimization. …”
Get full text
Article -
2169
Bayesian Optimized GridDehazeNet for Adaptive Haze Removal in Real-World Applications
Published 2025-01-01“…By employing our algorithm, we effectively identify the best architectural parameters, achieving higher Peak Signal-to-Noise Ratio (PSNR) and Structural Similarity Index Measure (SSIM) compared to models without this optimization. …”
Get full text
Article -
2170
Multi-objective optimization placement strategy for SDN security controller considering Byzantine attributes
Published 2021-06-01“…By giving the software defined network distributed control plane Byzantine attributes, its security can be effectively improved.In the process of realizing Byzantine attributes, the number and location of controllers, and the connection relationship between switches and controllers can directly affect the key network performance.Therefore, a controller multi-objective optimization placement strategy for SDN security controllers considering Byzantine attributes was proposed.Firstly, a Byzantine controller placement problem (MOSBCPP) model that comprehensively considered interaction delay, synchronization delay, load difference and the number of controllers was constructed.Then, a solution algorithm based on NASG-II was designed for this model, which included the initialization function, the mutation function, the fast non-dominated sorting function and the elite strategy selection function.Simulation results show that this strategy can effectively reduce interaction delay, synchronization delay, load difference and the number of controllers, while improving control plane security.…”
Get full text
Article -
2171
Structural Optimization and Experimental Validation of a Composite Engine Mount Designed for VTOL UAV
Published 2025-02-01“…This paper presents the optimization of one of the vital aircraft parts, the composite engine mount, based on the genetic algorithm (GA) combined with the defined finite element (FE) parameterized model. …”
Get full text
Article -
2172
Optimization Study of PVT Coupled Water Loop Heat Pump Energy Supply System
Published 2025-01-01“…By employing the Hooke-Jeeves algorithm, the system's design and operation parameters were optimized with annual cost and system COP as objective functions. …”
Get full text
Article -
2173
An Optimized FPGA-Based FDIR System for Sensor Fault Detection in Satellite Attitude Estimation
Published 2025-01-01“…This paper addresses these challenges by optimizing FDIR hardware implementation through reshaping, parallelism, and pipelining to reduce computational load and latency while enhancing efficiency and processing speed. …”
Get full text
Article -
2174
Secure ISAC MIMO systems: exploiting interference with Bayesian Cramér–Rao bound optimization
Published 2025-02-01“…In particular, assuming that the distribution of each parameter to be estimated is known a priori, we focus on optimizing the targets’ sensing performance. To this end, we derive and minimize the Bayesian Cramér–Rao bound, while ensuring certain communication quality of service by exploiting constructive interference. …”
Get full text
Article -
2175
An analytical optimal calibration framework of bonded particle model for rock strength envelop modelling
Published 2025-05-01“…Adaptive moment estimation (Adam) was chosen as the iterative optimization algorithm to avoid the vanishing gradient problem. …”
Get full text
Article -
2176
Carbon Quota Allocation Prediction for Power Grids Using PSO-Optimized Neural Networks
Published 2024-12-01“…Results indicate that the PSO algorithm mitigates local optimization constraints of the standard BP algorithm; the prediction error of carbon emissions by the combined model is significantly smaller than that of the single model, while its identification accuracy reaches 99.46%. …”
Get full text
Article -
2177
A Subimage Autofocus Bistatic Ground Cartesian Back-Projection Algorithm for Passive Bistatic SAR Based on GEO Satellites
Published 2025-04-01“…SIAF-BGCBP reduces phase estimation’s complexity by 90% through subimage pixel density optimization while maintaining estimation accuracy. Further enhancement of SIAF-BGCBP via geometric inversion would enable the precise compensation of space-variant phase errors while remaining efficient. …”
Get full text
Article -
2178
Differential Evolution-Based End-Fire Realized Gain Optimization of Active and Parasitic Arrays
Published 2025-01-01“…This multi-objective optimization, underpinned by the differential evolution (DE) algorithm, uses a simple wire dipole as the unit element. …”
Get full text
Article -
2179
An Intelligent Optimization System Using Neural Networks and Soft Computing for the FMM Etching Process
Published 2025-06-01“…The system integrates advanced optimization techniques, including the Taguchi method, analysis of variance (ANOVA), back-propagation neural network (BPNN), and a hybrid particle swarm optimization–genetic algorithm (PSO-GA) approach to identify optimal process parameters. …”
Get full text
Article -
2180
DDPG-Based UAV-RIS Framework for Optimizing Mobility in Future Wireless Communication Networks
Published 2025-06-01“…The proposed framework jointly optimizes UAV trajectories and RIS phase shifts to improve throughput, energy efficiency (EE), and LoS probability while reducing outage probability (OP) and HOF. …”
Get full text
Article