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621
Analysis of Feature Extraction and Anti-Interference of Face Image under Deep Reconstruction Network Algorithm
Published 2021-01-01“…Then, the portrait pyramid segmentation and local feature point segmentation are applied to extract the features of face images, and the matching of face feature points is achieved using Euclidean distance and joint Bayesian method. Finally, Matlab software is used to simulate the algorithm proposed in this paper and compare it with other algorithms. …”
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622
The wrapped Rama distribution
Published 2024-12-01“…Better fits were assessed in terms of probability plots, density plots, values of Akaike information criterion and values of Bayesian information criterion.…”
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623
Research of proactive complex event processing method
Published 2016-09-01“…Based on the preliminary analysis results of the indeterminate event stream that generated by the sensors and control purpose equipment of CPS,the adaptive dynamic Bayesian network and parallel Markov decision process model were used to support the proactive complex event processing.In order to resolve the vast state space issue of Markov decision process for large CPS,states partition and reward decomposition methods were proposed to parallel the decision making process.The experimental result based on the simulation of traffic network shows that proposed method can process event stream effectively and has favorable scalability.…”
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624
The Basic Reproduction Number for the Markovian SIR-Type Epidemic Models: Comparison and Consistency
Published 2022-01-01“…The first is to examine Bayesian sensitivity and consistency of this measure for the case of Markov epidemic models. …”
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625
Motivation Analysis of Technological Startups Business Models Based on Intelligent Data Mining and Analysis
Published 2022-01-01“…To improve the motivation analysis effect of the technological startups business model, this study combines intelligent data mining technology to analyze related factors and proposes a method of adjusting parameters of machine-learning model based on Bayesian optimization algorithm. Moreover, this study integrates the prior information and sample information of the machine learning algorithm performance function and builds an intelligent analysis model based on the elements of the technological startups business model. …”
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626
Deep belief network-based link quality prediction for wireless sensor network
Published 2017-11-01“…After analyzing the existing link quality prediction models,a link quality prediction model for wireless sensor network was proposed,which was based on deep belief network.Support vector classification was employed to estimate link quality,so as to get link quality levels.Deep belief network was applied in extracting the features of link quality,and softmax was taken to predict the next time link quality.In different scenarios,compared with the model of link quality prediction based on logistic regression,BP neural network and Bayesian network methods,the experimental results show that the proposed prediction model achieves better precision.…”
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627
Attack detection method based on spatiotemporal event correlation in intranet environment
Published 2020-01-01“…In view of the fact that a single event as an attack detection feature leads to a higher false positive rate,an intranet attack detection method using Bayesian network model for cross-space event correlation and Kalman filter linear model for cross-temporal event correlation was proposed.Based on the method,a process query system was implemented,which can scan and correlate distributed network events according to the user's high-level process description.Experimental analysis show that the proposed method can significantly reduce the false positive rate of intranet attack detection without increasing the computational overhead.…”
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628
Spherical Simplex-Radial Cubature Quadrature Kalman Filter
Published 2017-01-01“…The Gaussian probability weighted integral of the nonlinear function is decomposed into spherical integral and radial integral, which are approximated by spherical simplex cubature rule and arbitrary order Gauss-Laguerre quadrature rule, respectively, and the novel spherical simplex-radial cubature quadrature rule is obtained. Combined with the Bayesian filtering framework, the general form and the specific form of SSRCQKF are put forward, and the numerical simulation results indicate that the proposed algorithm can achieve a higher filtering accuracy than CKF and SSRCKF.…”
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629
Attention-based approach of detecting spam in social networks
Published 2020-02-01“…In social networks,a large amount of spam has seriously threaten users' information security and the credit system of social websites.Aiming at the noise and sparsity problems,an attention-based CNN method was proposed to detect spam.On the basis of classical CNN,this method added a filter layer in which an attention mechanism based on Naive Bayesian weighting technology was designed to solve the noise issue.What’s more,instead of the original pooling strategy,it adapted an attention-based pooling policy to alleviate the sparsity problem.Compared with other methods,the results show that the accuracy has increased by 1.32%,2.15%,0.07%,1.63% on four different data sets.…”
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630
Fault Diagnosis Method of Wavelet Threshold Analysis Combined with EMD for Mechanical Equipment
Published 2015-01-01“…According to the problem of noise interference in the mechanical equipment fault signal acquisition,a novel mechanical equipment fault diagnosis method of wavelet shrinkage threshold based on Bayesian estimation combined with EMD is proposed. …”
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631
Bounds for the mean square error of reliability estimation from gamma distribution in presence of an outlier observation
Published 1989-01-01“…Given the outlier effect on σ, we determine bounds for the mean and mean square error (MSE) of R(t). A semi-Bayesian approach is discussed when the outlier effect on σ is treated as a random variable having a prior distribution of beta type. …”
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632
Evaluation of Global South's efficiency at the Summer Olympics.
Published 2025-01-01“…By doing this, our paper is the first using the Bayesian stochastic frontier analysis for exploring the performance of the states of the Global South. …”
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633
Enhanced dry SO₂ capture estimation using Python-driven computational frameworks with hyperparameter tuning and data augmentation
Published 2025-04-01“…The model complexity arising from hyperparameter configurations was appraised based on the Bayesian information criterion and the Akaike information criterion. …”
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634
Geospatial mapping of drug-resistant tuberculosis prevalence in Africa at national and sub-national levels
Published 2025-04-01“…Methods: We assembled a geolocated dataset from 173 sources across 31 African countries, comprising drug susceptibility test results and covariate data from publicly available databases. We used Bayesian model-based geostatistical framework with multivariate Bayesian logistic regression model to estimate DR-TB prevalence at lower administrative levels. …”
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635
Assessment of different genotyping markers and algorithms for distinguishing Plasmodium falciparum recrudescence from reinfection in Uganda
Published 2025-02-01“…Discrepancies in recrudescence classification between match-counting and Bayesian algorithms highlight the need for standardized PCR correction practices.…”
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636
Genetic coupling of enhancer activity and connectivity in gene expression control
Published 2025-01-01“…Capitalising on these shared effects, we devise a multi-modality Bayesian strategy, identifying 629 “trimodal QTLs” jointly associated with enhancer accessibility, eGene promoter contact, and gene expression. …”
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637
Squamanitaceae and three new species of Squamanita parasitic on Amanita basidiomes
Published 2021-03-01“…This study reveals that Cystoderma, Phaeolepiota, Squamanita, Floccularia, and Leucopholiota are a monophyletic clade with strong statistical support in Bayesian analysis and form Squamanitaceae. Phaeolepiota nested within Cystoderma; Squamanita, Leucopholiota, and Floccularia clustered together as two monophyletic subclades; and Squamanita was present as a monophyletic clade with strong statistical support in both Maximum Likelihood and Bayesian analyses. …”
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638
Phylogenetic analysis and detection of positive selection in the SIRT gene family across vertebrates
Published 2025-01-01“…Positively selected sites were identified using Bayesian empirical Bayes (BEB) methods. Phylogenetic analysis revealed that the seven SIRT gene family members in vertebrates originated from gene duplication events. …”
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639
Result merging method based on combined kernels for distributed information retrieval
Published 2011-01-01“…To enhance the performance of result merging for distributed information retrieval(DIR),a novel merging method was put forward,which was based on relevance between retrieved results and query.Improved latent semantic kernel(LSK) was combined with analysis of variance(ANOVA) kernel to calculate the relevance.Experimental results showed that the result merging precision of the combination of LSK and ANOVA kernel(CLA) is 16.79%,30.73%,20.37%,24.17%,14.25%,13.50% and 7.53% higher than that of Round-robin,ComMNZ,Bayesian,Borda,SDM,MEM and regression SVM respectively.CLA kernel method has better performance for result merging and is a practical method for result merging in DIR.…”
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640
treeducken: An R package for simulating cophylogenetic systems
Published 2021-08-01“…This allows easier performance testing of methods and has potential applications in machine learning (ML) and approximate Bayesian computation (ABC) approaches.…”
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