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2521
Research on anomaly detection algorithm based on sparse variational autoencoder using spike and slab prior
Published 2022-12-01“…Anomaly detection remains to be an essential and extensive research branch in data mining due to its widespread use in a wide range of applications.It helps researchers to obtain vital information and make better decisions about data by detecting abnormal data.Considering that sparse coding can get more powerful features and improve the performance of other tasks, an anomaly detection model based on sparse variational autoencoder was proposed.Firstly, the discrete mixed modelspike and slab distribution was used as the prior of variational autoencoder, simulated the sparsity of the space where the hidden variables were located, and obtained the sparse representation of data characteristics.Secondly, combined with the deep support vector network, the feature space was compressed, and the optimal hypersphere was found to discriminate normal data and abnormal data.And then, the abnormal fraction of the data was measured by the Euclidean distance from the data feature to the center of the hypersphere, and then the abnormal detection was carried out.Finally, the algorithm was evaluated on the benchmark datasets MNIST and Fashion-MNIST, and the experimental results show that the proposed algorithm achieves better effects than the state-of-the-art methods.…”
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2522
Research on anomaly detection algorithm based on sparse variational autoencoder using spike and slab prior
Published 2022-12-01“…Anomaly detection remains to be an essential and extensive research branch in data mining due to its widespread use in a wide range of applications.It helps researchers to obtain vital information and make better decisions about data by detecting abnormal data.Considering that sparse coding can get more powerful features and improve the performance of other tasks, an anomaly detection model based on sparse variational autoencoder was proposed.Firstly, the discrete mixed modelspike and slab distribution was used as the prior of variational autoencoder, simulated the sparsity of the space where the hidden variables were located, and obtained the sparse representation of data characteristics.Secondly, combined with the deep support vector network, the feature space was compressed, and the optimal hypersphere was found to discriminate normal data and abnormal data.And then, the abnormal fraction of the data was measured by the Euclidean distance from the data feature to the center of the hypersphere, and then the abnormal detection was carried out.Finally, the algorithm was evaluated on the benchmark datasets MNIST and Fashion-MNIST, and the experimental results show that the proposed algorithm achieves better effects than the state-of-the-art methods.…”
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2523
International Natural Uranium Price Prediction Based on TF-CNN-BiLSTM Model
Published 2025-06-01“…To address these challenges, this study proposed a novel TF-CNN-BiLSTM model, which synergistically combines the self-attention mechanism of Transformer, the local feature extraction capability of convolutional neural network (CNN), and the bidirectional temporal dependency modeling of bidirectional long short-term memory (BiLSTM). …”
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2524
GC4MRec: Generative-Contrastive for Multimodal Recommendation
Published 2025-03-01“…On the one hand, we design a bilateral information flow module using two graph convolutional networks (GCNs). This module captures modal features from two distinct perspectives—standard and generatively augmented—to extract latent preferences. …”
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2525
ASLDetect: Arabic sign language detection using ResNet and U-Net like component
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2526
Small Object Tracking in LiDAR Point Clouds: Learning the Target-Awareness Prototype and Fine-Grained Search Region
Published 2025-06-01“…To this end, we propose a deep neural network framework that trains a Siamese network for feature extraction and innovatively incorporates two pivotal modules: the target-awareness prototype mining (TAPM) module and the regional grid subdivision (RGS) module. …”
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2527
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2528
Artificial intelligence in suicide prevention: Utilizing deep learning approach for early detection
Published 2024-12-01“…Aim: Our primary objective was to construct an artificial intelligence (AI) model employing an artificial neural network (ANN) architecture to predict students at risk of suicidal tendencies. …”
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2529
An EMG-Based GRU Model for Estimating Foot Pressure to Support Active Ankle Orthosis Development
Published 2025-06-01Get full text
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2530
GRE<sup>2</sup>-MDCL: Graph Representation Embedding Enhanced via Multidimensional Contrastive Learning
Published 2025-01-01“…However, most graph neural network models require extensive labelled data, limiting their practical applicability. …”
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2531
Deep fusion of incomplete multi-omic data for molecular mechanism of Alzheimer’s disease
Published 2025-08-01“…In addition, TransFuse yielded a subset of multi-omics features forming functional disease network modules, providing valuable insights into underlying molecular mechanism. …”
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2532
Similarities and differences between dog–human and human–human relationships
Published 2025-04-01“…This may stem from the fact that the dog-human relationship features a more asymmetric power dynamic than human relationships – i.e., owners have full control over the dog’s life. …”
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2533
A Generalized GNN-Transformer-Based Radio Link Failure Prediction Framework in 5G RAN
Published 2025-01-01“…This paper fills the gap by proposing GenTrap, a novel RLF prediction framework that introduces a Graph Neural Network (GNN)-based learnable weather effect aggregation module and employs state-of-the-art time series transformer as the temporal feature extractor for radio link failure prediction. …”
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2534
Near-Infrared Hyperspectral Target Tracking Based on Background Information and Spectral Position Prediction
Published 2025-04-01“…This module effectively reduces the computational complexity of feature extraction by capsule networks and improves tracking stability. …”
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2535
OA-MEN: a fusion deep learning approach for enhanced accuracy in knee osteoarthritis detection and classification using X-Ray imaging
Published 2025-01-01“…This approach ensures enhanced extraction of semantic information without losing the advantages of large feature maps provided by high image resolution in lower layers of the network. …”
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2536
Berberine alleviates atherosclerosis by modulating autophagy and inflammation through the RAGE-NF-κB pathway
Published 2025-03-01“…IntroductionLipid accumulation and foam cell formation are significant features that expedite the progression of atherosclerosis (AS). …”
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2537
Predictive Modeling of soil salinity integrating remote sensing and soil variables: An ensembled deep learning approach
Published 2025-03-01“…Initially, Recursive Feature Elimination was implemented as a feature-selection method to select the most effective predictors. …”
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2538
AI-enhanced automation of building energy optimization using a hybrid stacked model and genetic algorithms: Experiments with seven machine learning techniques and a deep neural net...
Published 2025-06-01“…This model was trained and validated using simulation data from selected areas of London. It was further evaluated on unseen data from diverse UK cities without retraining, confirming its predictive power across varying climatic conditions. …”
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2539
Social Media Based Topic Modeling for Smart Campus: A Deep Topical Correlation Analysis Method
Published 2019-01-01“…In particular, bidirectional recurrent neural networks and convolutional neural networks are used to learn deep textual and visual features, respectively. …”
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2540
COMMUNICATIVE AND PRAGMATIC PARAMETERS OF THE BLOG AS A GENRE OF PERSONAL INTERNET COMMUNICATION (BASED ON TEXTS BY LYUDMILA LINNYK ON THE WEBSITE “GALICIAN CORRESPONDENT”)
Published 2021-06-01“…The purpose of the study is to reveal the communicative and pragmatic features of a blog as a specific genre of Internet communication. …”
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