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1821
A Fast and Efficient Adaptive Threshold Rate Control Scheme for Remote Sensing Images
Published 2012-01-01“…The simulation results show that the computational cost and working buffer memory size of the proposed algorithm reach only 18.13 and 7.81%, respectively, of the same parameters in the postcompression rate distortion algorithm, while the peak signal-to-noise ratio across the images remains almost the same. …”
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1822
Urban land use function prediction method based on RF and cellular automaton model
Published 2025-02-01“…Moreover, the study also integrates random forest algorithm and cellular automaton model, and finally proposes a new urban land use function prediction method based on random forest algorithm and cellular automaton model. …”
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1823
Targeted Influential Nodes Selection in Location-Aware Social Networks
Published 2018-01-01“…Given a target area and a location-aware social network, the location-aware influence maximization problem aims to find a set of seed users such that the information spread from these users will reach the most users within the target area. We show that the problem is NP-hard and present an approximate algorithm framework, namely, TarIM-SF, which leverages on a popular sampling method as well as spatial filtering model working on arbitrary polygons. …”
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1824
High capacity reversible hiding in encrypted domain based on cipher-feedback secret sharing
Published 2023-09-01“…To improve the security, robustness and embedding rate of reversible hiding in encrypted domain in the distributed environment, a multiple embedding algorithm based on cipher-feedback secret sharing was proposed.Firstly, the additional data were embedded into the polynomial coefficients redundancy generated in the process of secret image sharing.Secondly, the extra secrets were embedded by using the additive homomorphism of secret sharing.Experimental results demonstrate that a better security and robustness has been obtained by improving the diffusion characteristic of secret sharing using the feedback mechanism.In the (3,4) and (3,5) threshold, the embedding rates can reach 6.00 bit per pixel and 4.80 bit per pixel respectively.The proposed algorithm can not only maintain the strong security and separability, but also obtain a better embedding capacity.Meanwhile, the embedding rate of the scheme is not affected by the carrier image and is only related to the selection of algorithm parameters.…”
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1825
Multicast resource allocation scheme considering source-coding characteristic in OFDM systems
Published 2010-01-01“…Aiming to solve the problem that unicast or conventional multicast was incapable of make full use of the opening for wireless propagation in orthogonal frequency division multiplexing(OFDM) systems,a resource allocation scheme involving several multicast groups was proposed to maintain proportional fairness among groups.The proposed scheme consisted of subcarrier assignment algorithm and power allocation algorithm.The former was achieved by modi-fying the existing unicast subcarrier assignment algorithm,whilst optimal power allocation on condition that subcarrier assignment was determined was reached by the latter based on theoretically derived non-linear equations.Simulation re-sults show that the proposed scheme can ensure perfect fairness among different multicast groups,and remarkably out-performs conventional multicast in terms of rate-sum capacity.Combined with the low complexity,it is suitable for the application to voice/video multicast in actual wireless systems.…”
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1826
Optimized Model Predictive Control-Based Path Planning for Multiple Wheeled Mobile Robots in Uncertain Environments
Published 2025-01-01“…Finally, two sets of simulation experiments in uncertain environments demonstrate the effectiveness and superiority of the proposed method compared to the APF-MPC algorithm, enabling the control of multiple WMRs to reach their target positions safely, smoothly, and efficiently. …”
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1827
Research on Dynamic Path Planning of Wheeled Robot Based on Deep Reinforcement Learning on the Slope Ground
Published 2020-01-01“…The existing dynamic path planning algorithm cannot properly solve the problem of the path planning of wheeled robot on the slope ground with dynamic moving obstacles. …”
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1828
Simulation of Separation of Salt Solution from Crude Oil in a Hydrocyclone
Published 2022-01-01“…If the diameter of the oil droplets is greater than 100 microns, the percentage of oil output from the spillway reaches 99.5%. In the case of the water phase as the discrete phase, if the water droplets size is considered equal to 200 microns, the water separation efficiency in the spillway reaches 69%.…”
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1829
A Frequency Hybrid Multi-mode PWM Modulation Method for SiC Traction Inverter
Published 2022-06-01“…Experimental results show that using the proposed algorithm, the total harmonic distortion (THD) of the motor current can be reduced by a maximum of 9.31%, the overall loss of the traction system can be reduced by a maximum of 10.2%, the temperature rise of the motor can be reduced by a maximum of 31 K, and the maximum noise suppression of the motor can reach 10 dB. …”
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1830
The Design of Multi⁃Channel Flame Intelligent Monitoring System Based on B/S Architecture
Published 2025-04-01“…The detecting frame rate can reach 15 ms/frame, and the detection rate reaches 100%, which has high stability. …”
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1831
Research on the Method of Coke Optical Tissue Segmentation Based on Adaptive Clustering
Published 2021-01-01“…The experimental results show that compared with the traditional K-means algorithm, FCM algorithm, and Meanshift algorithm, the adaptive clustering algorithm proposed in this paper is more accurate in the segmentation of various tissue components in COT images, and the accuracy of tissue segmentation reaches 94.3500%.…”
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1832
Optimization Method for Crop Growth Characteristics Based on Improved Locality Preserving Projection
Published 2014-01-01“…Finally, feature parameters set are obtained to extract local information of samples by improved LPP algorithm. The experiments show that the improved LPP algorithm has good adaptability, and the highest SVM classification accuracy rate of this method can reach more than 96%. …”
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1833
Optimize 2-D Path Planning of Mobile Robot by using ACO with Guidance Factor
Published 2020-06-01“…Moreover, the results of the proposed algorithm compares with the classical ant system methodology. …”
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1834
Real-Time Object Detection for the Running Train Based on the Improved YOLO V4 Neural Network
Published 2022-01-01“…The mean average precision value of the experimentally designed MYOLO-lite model object detection algorithm reaches 95.74%, with 42.04 frames per second. …”
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1835
The effect of using Naive Bayes to detect spam email
Published 2025-01-01“…The results and analysis of the experimental dataset demonstrate that the accuracy of Park’s Bayesian algorithm in spam detection reaches an impressive 99.193%. …”
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1836
Desarrollo del pensamiento computacional en estudiantes de educación media mediante actividades Unplugged
Published 2023-01-01“…A quasi-experimental approach with a pretest-posttest design was used to assess computational thinking skills, including algorithmic thinking, decomposition, generalization, abstraction, and evaluation. …”
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1837
ANATOMICAL AND CT ANATOMICAL STUDY OF THE RABBIT LIVER IN DORSAL PLANES
Published 2021-06-01“…Thus, we applied a topographic algorithm, using dorsal frozen cuts and CT algorithm with coronary slices. …”
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1838
Load-dependent vehicle routing problem with route time constraint: a heuristic approach
Published 2025-12-01“…The results show that for instances with known optimal solutions, the heuristic algorithm can reach solutions with small gaps to the optimal. …”
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1839
A VCA Combined MHSA-CNN for Aero-Engine Hot Jet Remote Sensing Mixed Spectral Feature Extraction
Published 2025-03-01“…By comparing with the separately measured actual pure spectra, it was found that the mean RMSE of the hot jet pure spectra extracted by VCA for the two engines was 0.34846, and the mean SAM reached 0.00096, thus validating the effectiveness of the algorithm. …”
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1840
Optimized Dynamic Deployment of UAVs in Maritime Networks with Route Prediction
Published 2024-12-01“…Simulation results show that the proposed algorithm can complement the existing satellite and terrestrial networks well in terms of coverage, with a communication coverage rate of more than 95%, which significantly improves the communication quality of marine users in areas far from land and beyond the reach of traditional networks, and enhances network reliability and user experience.…”
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