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1481
Combination of the Improved Diffraction Nonlocal Boundary Condition and Three-Dimensional Wide-Angle Parabolic Equation Decomposition Model for Predicting Radio Wave Propagation
Published 2017-01-01“…Diffraction nonlocal boundary condition (BC) is one kind of the transparent boundary condition which is used in the finite-difference (FD) parabolic equation (PE). The greatest advantage of the diffraction nonlocal boundary condition is that it can absorb the wave completely by using one layer of grid. …”
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1482
INFLUENCE OF THE AVERAGE WEIGHTED ESTIMATION TYPE ON THE DEPENDENCE OF THE COMPLEX QUALITY INDEX ON THE PARAMETERS OF OBJECT
Published 2017-12-01“…It includes single quality indicators with their significance factors. The convolution of the corresponding dependencies represents average weighted quantities: arithmetic, geometric, harmonic, quadratic, etc. …”
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1483
Adaptive pixel attention network for hyperspectral image classification
Published 2024-11-01“…More importantly, we also propose a new Adaptive Pixel Attention mechanism, which explores Cosine and Euclidean similarity to adaptively explore the distance and angle relationship between pixels of different scale convolution patch features. Moreover, the Cross-Layer Information Complement module is designed to form a contextual interaction by integrating the output features of different convolution layers, which can prevent the omission of discriminative information and further improve the network performance. …”
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1484
AnoViT: Unsupervised Anomaly Detection and Localization With Vision Transformer-Based Encoder-Decoder
Published 2022-01-01“…Encoder-decoder structures have been widely used in the field of anomaly detection because they can easily learn normal patterns in an unsupervised learning environment and calculate a score to identify abnormalities through a reconstruction error indicating the difference between input and reconstructed images. Therefore, current image anomaly detection methods have commonly used convolutional encoder-decoders to extract normal information through the local features of images. …”
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1485
Speech Recognition in an Enclosure with a Long Reverberation Time
Published 2016-02-01“…Impulse Responses (IRs) were first determined with a dummy head in different measurement points of the enclosure. The following objective parameters were calculated with Dirac 4.1 software: Reverberation Time (RT), Early Decay Time (EDT), weighted Clarity (C$_{50}$) and Speech Transmission Index (STI). …”
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1486
Adaptation of image reconstruction algorithm for purposes of ultrasound transmission tomography (UTT)
Published 2000-01-01“…In particular, a complete computer algorithm enabling the use of different convolving and interpolation functions has been developed. …”
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1487
ShipYOLO: An Enhanced Model for Ship Detection
Published 2021-01-01“…In the training process, the 3 × 3 convolution, 1 × 1 convolution, and identity parallel mode are used to replace the original feature extraction component (ResUnit) and more features are extracted. …”
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1488
Deep Learning Model of Image Classification Using Machine Learning
Published 2022-01-01“…Firstly, based on the analysis of the basic theory of neural network, this paper expounded the different types of convolution neural network and the basic process of its application in image classification. …”
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1489
SFEF-Net: Scattering Feature Extraction and Fusion Network for Aircraft Detection in SAR Images
Published 2025-05-01“…Firstly, we proposed an innovative sparse convolution operator and applied it to feature extraction. …”
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1490
Classification of Satellite Image Time Series and Aerial Images Based on Multiscale Fusion and Multilevel Supervision
Published 2025-07-01“…In this context, it is a challenge to train a classifier given the large difference in resolutions. We utilise convolutions to extract spatial information and consider self-attention in the temporal dimension for SITS. …”
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1491
On Symmetrical Sonin Kernels in Terms of Hypergeometric-Type Functions
Published 2024-12-01“…In this paper, a new class of kernels of integral transforms of the Laplace convolution type that we named symmetrical Sonin kernels is introduced and investigated. …”
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1492
Scene Text Detection Based on Multi-scale Feature Extraction and Bidirectional Feature Fusion
Published 2024-08-01“…However, single-scale convolution methods are usually difficult to take into account the feature representation of text targets with different shapes and scales. …”
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1493
Two-stage Detection Method for Abnormal Cluster Cervical Cells
Published 2022-04-01“…The size and location of convolution kernel can be dynamically adjusted according to the current pathological image content, so as to adapt to the shape, size and other geometric changes of cervical cells in different clusters. …”
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1494
Reversible image steganography based on residual structure and attention mechanism
Published 2025-06-01“…The network uses INN as the overall framework, adopts a double-branch structure, extracts deep features using the mixed attention mechanism, and employs channel shuffle to promote information interaction between different features. This paper introduces dilated convolution to design a multi-scale convolution attention module that combines feature information from different scales, highlights essential features, and precisely locates the ideal embedding position. …”
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1495
The TDGL Module: A Fast Multi-Scale Vision Sensor Based on a Transformation Dilated Grouped Layer
Published 2025-05-01“…These improvements enable the network to distinguish features at different scales effectively while optimizing spatial information processing and reducing computational costs. …”
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1496
Reduction of Electromagnetic Reflections in 3D Airborne Transient Electromagnetic Modeling: Application of the CFS-PML in Source-Free Media
Published 2018-01-01“…To solve the problem of electromagnetic reflections caused by the termination of finite-difference time-domain (FDTD) grids, we apply the complex frequency-shifted perfectly matched layer (CFS-PML) to airborne transient electromagnetic (ATEM) modeling in a source-free medium. …”
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1497
YOLO-UIR: A Lightweight and Accurate Infrared Object Detection Network Using UAV Platforms
Published 2025-07-01“…Moreover, the LSP module efficiently combines features from different distances using Large Receptive Field Convolution Layers, significantly enhancing the model’s long-range information capture capability. …”
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1498
HRNet Encoder and Dual-Branch Decoder Framework-Based Scene Text Recognition Model
Published 2022-01-01“…In the decoder module, the dual-branch structure is adopted, in which the super-resolution branch takes the feature maps with the highest resolution obtained in the encoder module as input and restores images by upsampling through transposed convolution. The four kinds of feature maps with different resolutions are fused through independent transposed convolution layers for multiscale fusion in the recognition branch and then inputted into the attention-based decoder for text recognition. …”
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1499
Learner preferences prediction with mixture embedding of knowledge and behavior graph
Published 2021-08-01“…To solve the problems of inaccurate prediction of learner preference and insufficient utilization of structural information in the knowledge recommendation model, for the knowledge structure and learner behavior structure in the learner’s preference prediction model, the model of learner preferences predication with mixture embedding of knowledge and behavior graph was proposed.First, considering using graph convolution network (GCN) to fit structural information, GCN was extended to knowledge graph and behavior graph, the purpose of which was to obtain learners’ overall learning pattern and individual learning pattern.Then, the difference between knowledge structure and behavior structure was used to fit learners’ individual preferences, and recurrent neural network was used to encode and decode learners’ preferences to obtain the distribution of learners’ preference distribution.The experimental results on the real datasets demonstrate that the proposed model has a good effect on predicting learner preferences.…”
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1500
Research on the Classification Method of Tea Tree Seeds Quality Based on Mid-Infrared Spectroscopy and Improved DenseNet
Published 2025-06-01“…Four types of tea tree seeds in different states were prepared, and their spectral data were collected and preprocessed using Savitzky–Golay (SG) filtering and wavelet transform. …”
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