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Journal Article
Uncovering mortality patterns and hospital effects in COVID-19 heart failure patients: a novel multilevel logistic cluster-weighted modeling approach
Luca Caldera and others
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Biometrics
Biometrics, Volume 81, Issue 2, June 2025, ujaf046, https://doi.org/10.1093/biomtc/ujaf046
Published: 28 April 2025
... effects in distinct subgroups showing different attributes. A tailored classification expectation-maximization algorithm is developed for parameter estimation, and extensive simulation studies are conducted to evaluate its performance against competing models. The novel approach is applied...
Journal Article
Improvement of deep learning-based dose conversion accuracy to a Monte Carlo algorithm in proton beam therapy for head and neck cancers
Ryohei Kato and others
Journal of Radiation Research, rraf019, https://doi.org/10.1093/jrr/rraf019
Published: 23 April 2025
... in the accurate dose conversion scheme for photon dose-calculation algorithms [ 29 ]. Therefore, we also added a CT image as an input for the conversion from the PB dose to the MC dose. This additional input allows the model to account for the heterogeneity that causes difference between the PB and MC dose...
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An improved YOLOv5 method for accurate recognition of grazing sheep activities: active, inactive, ruminating behaviors
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Xiao Dong and others
Journal of Animal Science, skaf084, https://doi.org/10.1093/jas/skaf084
Published: 22 April 2025
... spatial pyramid pooling module from YOLOv7 was added at the end of the backbone network, which improved the ability of the model to recognize multi-scale sheep behaviors by increasing the receptive field. In the neck network part, a new algorithm named CiConcat was proposed to optimize the regular Concat...
Journal Article
Investigating the effect of climate-related hazards on claim frequency prediction in motor insurance with incomplete data
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Tsz Chai Fung and others
Journal of the Royal Statistical Society Series C: Applied Statistics, qlaf030, https://doi.org/10.1093/jrsssc/qlaf030
Published: 17 April 2025
... frequencies, suggesting potential diversification benefits for insurers as climate change leads to more frequent weather-related hazards. climate change compound frequency models dependence modelling expectation-conditional maximization algorithm geospatial effects natural phenomena coverage Economic...
Journal Article
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Exact Sampling of Spanning Trees via Fast-Forwarded Random Walks
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Edric Tam and others
in
Biometrika
Biometrika, asaf031, https://doi.org/10.1093/biomet/asaf031
Published: 15 April 2025
... to rely on local moves, often leading to poor mixing. A promising approach is to instead directly sample spanning trees on an auxiliary graph. Current spanning tree samplers, such as the celebrated Aldous–Broder algorithm, rely predominantly on simulating random walks that are required to visit all...
Journal Article
Optimal distributions for randomized unbiased estimators with an infinite horizon and an adaptive algorithm
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Chao Zheng and others
IMA Journal of Numerical Analysis, draf017, https://doi.org/10.1093/imanum/draf017
Published: 03 April 2025
.... Res, 63, 1026–1043) can be highly efficient at approximating expectations of path functionals associated with stochastic differential equations. However, algorithms for calculating the optimal distributions with an infinite horizon are lacking. In this article, based on the method of Cui et al. (2021...
Journal Article
Semiparametric mixture regression for asynchronous longitudinal data using multivariate functional principal component analysis
Ruihan Lu and others
Biostatistics, Volume 26, Issue 1, 2025, kxaf008, https://doi.org/10.1093/biostatistics/kxaf008
Published: 22 March 2025
... Karhunen–Loéve expansions, where splines are employed to capture the mean and eigenfunctions. Treating the latent subgroup membership and the functional principal component (FPC) scores as missing data, we propose an Expectation-Maximization algorithm to effectively fit the joint model, combining...
Journal Article
Enhancing the small-signal stability of the island microgrids under the virtual impedances-gray wolf optimization model: two distinct case studies
Hamidreza Shahravi and others
International Journal of Low-Carbon Technologies, Volume 20, 2025, Pages 1024–1035, https://doi.org/10.1093/ijlct/ctaf035
Published: 20 March 2025
...-locked loop. It subsequently presents a unique method for analyzing small-signal stability in islanded MGs. A virtual impedance setting strategy is created using the gray wolf optimization algorithm. It was found that the voltage and frequency of the MG stay within acceptable boundaries. The MG stability...
Journal Article
Optimized allocation of hydrogen storage for integrated energy system based on fast nondominated sorting genetic algorithm
Dongxu Zhou and others
International Journal of Low-Carbon Technologies, Volume 20, 2025, Pages 1036–1046, https://doi.org/10.1093/ijlct/ctaf051
Published: 18 March 2025
... [email protected]. Abstract In this paper, the optimal allocation of hydrogen storage capacity is studied by using fast nondominated sorting genetic algorithm. By analyzing the multienergy characteristics of hydrogen storage units, optimizing hydrogen storage distribution and improving energy efficiency...
Journal Article
Advancing water demand management: predictive analytics using convolutional neural networks and developed maritime search and rescue algorithm based on the shared socioeconomic pathways
YiHeng Lan and others
International Journal of Low-Carbon Technologies, Volume 20, 2025, Pages 724–734, https://doi.org/10.1093/ijlct/ctae285
Published: 18 March 2025
... socioeconomic conditions. To achieve this, it is essential to forecast water demand accurately. This investigation introduces a predictive framework that utilizes a convolutional neural network-based Xception model, which has been optimized through the developed maritime search and rescue algorithm to increase...
Journal Article
Pragmatic soft-decision data readout of encoded large DNA
Qi Ge and others
Briefings in Bioinformatics, Volume 26, Issue 2, March 2025, bbaf102, https://doi.org/10.1093/bib/bbaf102
Published: 17 March 2025
.... Specifically, the watermark is cleverly embedded within large DNA fragments, allowing for the direct localization of raw reads via watermark alignment to avoid complex read assembly. A soft-decision forward–backward algorithm is proposed, which can identify indel errors and provide probability information...
Journal Article
Unmet social needs and diverticulitis: a phenotyping algorithm and cross-sectional analysis
Thomas E Ueland and others
Journal of the American Medical Informatics Association, Volume 32, Issue 5, May 2025, Pages 866–875, https://doi.org/10.1093/jamia/ocae238
Published: 14 March 2025
... of the Creative Commons Attribution License ( https://creativecommons.org/licenses/by/4.0/ ), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. Abstract Objective To validate a phenotyping algorithm for gradations of diverticular...
Journal Article
Towards high-accuracy bacterial taxonomy identification using phenotypic single-cell Raman spectroscopy data
Guangyu Li and others
ISME Communications, Volume 5, Issue 1, January 2025, ycaf015, https://doi.org/10.1093/ismeco/ycaf015
Published: 09 March 2025
... spectroscopy machine learning algorithm benchmark single-cell taxonomy identification microbial ecology environmental microbiome United States USDA-NIFA 2019–67013-29364 Cornell Initiative for Digital Agriculture funds National Science Foundation Center for Research on Programmable Plant...
Journal Article
Positive-definite regularized estimation for high-dimensional covariance on scalar regression
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Jie He and others
in
Biometrics
Biometrics, Volume 81, Issue 1, March 2025, ujaf017, https://doi.org/10.1093/biomtc/ujaf017
Published: 08 March 2025
... of CAC and the covariance on scalar regression model with the positive-definiteness constraints. Section 3 presents the proposed estimation approach and the ADMM algorithm. Section 4 shows the convergence of the proposed algorithm. Section 5 establishes the convergence rates and theoretical...
Journal Article
Fracture path prediction in proximal femur using strain energy-based Dijkstra’s algorithm
Jee A Baik and others
Journal of Computational Design and Engineering, Volume 12, Issue 3, March 2025, Pages 241–250, https://doi.org/10.1093/jcde/qwaf028
Published: 07 March 2025
...Jee A Baik; Jun Won Choi; Jung Jin Kim Correspondence: [email protected] Graphical Abstract Figure. Fracture path prediction in the proximal femur using Dijkstra’s algorithm. 19 10...
Journal Article
A statistical significance-based approach for clustering grouped data via generalized linear model with discrete random effects
Alessandra Ragni and others
Journal of the Royal Statistical Society Series A: Statistics in Society, qnaf007, https://doi.org/10.1093/jrsssa/qnaf007
Published: 07 March 2025
... within a modified Expectation–Maximization algorithm, collapsing support points of the discrete distribution with overlapping estimated confidence intervals or regions, derived from the asymptotic properties of maximum likelihood estimators. This approach offers a transparent interpretation of the latent...
Journal Article
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Optimizing Gene Selection and Module Identification via Ontology-Based Scoring and Deep Learning
Boutaina Ettetuani and others
Bioinformatics Advances, vbaf034, https://doi.org/10.1093/bioadv/vbaf034
Published: 26 February 2025
... algorithm with a deep neural network model. The statistical algorithm ranks differentially expressed genes by correlating their expression scores with the semantic similarity of their biological context, utilizing gene ontology information to align genes with known pathways. The deep neural network...
Journal Article
Modeling the potential global distribution of the invasive Jack Beardsley mealybug (Hemiptera: Pseudococcidae) under climate change
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Caifeng Li and others
Journal of Economic Entomology, Volume 118, Issue 2, April 2025, Pages 589–599, https://doi.org/10.1093/jee/toaf029
Published: 26 February 2025
... Beardsley mealybug under different climate scenarios with MaxEnt, and discussed preventive and control measures against this pest. species distribution model maximum algorithm invasive pest climate niche Science and Technology Project of Hebei Education Department BJ2020052 Pseudococcus...
Journal Article
FORAlign: accelerating gap-affine DNA pairwise sequence alignment using FOR-blocks based on Four Russians approach with linear space complexity
Yanming Wei and others
Briefings in Bioinformatics, Volume 26, Issue 1, January 2025, bbaf061, https://doi.org/10.1093/bib/bbaf061
Published: 23 February 2025
... contact [email protected] Abstract Pairwise sequence alignment (PSA) serves as the cornerstone in computational bioinformatics, facilitating multiple sequence alignment and phylogenetic analysis. This paper introduces the FORAlign algorithm, leveraging the Four Russians algorithm...
Journal Article
From data to artificial intelligence: evaluating the readiness of gastrointestinal endoscopy datasets
Sami Elamin and others
Journal of the Canadian Association of Gastroenterology, Volume 8, Issue Supplement_2, March 2025, Pages S81–S86, https://doi.org/10.1093/jcag/gwae041
Published: 21 February 2025
... Algorithm Incorporating artificial intelligence (AI) into gastrointestinal (GI) endoscopy represents a promising advancement in gastroenterology practice. 1 , 2 In clinical research on AI, gastroenterology leads all other medical disciplines with nearly over 40 published randomized controlled...
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