Category: 7. Maths
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Research and experiment on the trenching performance of orchard trenching device
Theoretical analysis of trenching performance Structure and working principle of trenching device The trenching device (as shown in Fig. 1a) is mainly composed of a cutter head, a trenching cutter, a traction frame, a cross beam, a draft cover assembly, a cutter head driving mechanism and a longitudinal beam. The cutter head assembly comprises a trenching…
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Software defect prediction using learning to rank approach
Bertolino, A. Software testing research: achievements, challenges, dreams. In Future of Software Engineering (FOSE ’07), pp. 85–103. https://doi.org/10.1109/FOSE.2007.25 (2007). Catal, C. & Diri, B. A systematic review of software fault prediction studies. Expert Syst. Appl. 36(4), 7346–7354. https://doi.org/10.1016/j.eswa.2008.10.027 (2009). Article Google Scholar Alsghaier, H. & Akour, M. Software fault prediction using particle swarm algorithm with…
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Segmentation of glioblastomas in early post-operative multi-modal MRI with deep neural networks
Ethics and informed consent statement The study was conducted in accordance with the Declaration of Helsinki. The study protocol was approved by the Medical Ethics Review Committee of VU University Medical Center (IRB00002991, 2014.336), and the Norwegian regional ethics committee (REK ref. 2013/1348 and 2019/510). Written informed consent was obtained from patients as required for…
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Ensuring generalized fairness in batch classification
Experimental setup In this section, we describe the experimental setup that includes a description of various datasets, baselines, performance metrics and configuration generation to compare with baselines. Datasets In our study we have used four real datasets namely Adult48, Bank49, COMPAS (ProPublica Recidivism)50, German51 and a synthetic dataset for evaluating the performance of the algorithms.…
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Theoretical tools for understanding the climate crisis from Hasselmann’s programme and beyond
Mitchell, J. An overview of climatic variability and its causal mechanisms. Quat. Res. 6, 481–493 (1976). Article Google Scholar Ghil, M. A century of nonlinearity in the geosciences. Earth Space Sci. 6, 1007–1042 (2019). Article ADS Google Scholar von der Heydt, A. S. et al. Quantification and interpretation of the climate variability record. Glob. Planet.…
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Geometric description of clustering in directed networks
Boguñá, M. et al. Network geometry. Nat. Rev. Phys. 3, 114–135 (2021). Article Google Scholar Serrano, M. Á., Krioukov, D. & Boguñá, M. Self-similarity of complex networks and hidden metric spaces. Phys. Rev. Lett. 100, 078701 (2008). Article ADS Google Scholar García-Pérez, G., Boguñá, M. & Serrano, M. Á. Multiscale unfolding of real networks by…
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Numerical analysis of slip-enhanced flow over a curved surface with magnetized water-based hybrid nanofluid containing gyrotactic microorganisms
Take 2D flow of hybrid nanoliquid comprising of gyrotactic microorganisms on an elongating curved surface using porous media. The nanoparticles of TiO2 and Fe3O4 have dispersed in water for composition of hybrid nanofluid. A curvilinear coordinate system (\(R,S\)) having \(U\) and \(V\) as velocities in \(S -\) and \(R -\) directions are considered. The surface…
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Aiding food security and sustainability efforts through graph neural network-based consumer food ingredient detection and substitution
Data The dataset used for this work was purchased from the data company Datafiniti, obtained via queries on their data for food and beverages with ingredients from US retailers (Amazon, Walmart and Target)46. The data acquired was initially noisy and contained errors. The data was sanitised and processed into a more usable form, resulting in…
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Attributed network embedding based on self-attention mechanism for recommendation method
Our model first extracts item attributes and encodes the attribute set of the item into the item preference space. The preference of different users are different points in the item preference space, and users become the anchor vector in the space. In the item preference space, each anchor vector of the user is used to…
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Mathematician creates mass extinction model regarding climate change and adaptation
(a) Illustration of the dependence of the Earth surface albedo S on the vegetation density u. (b) Illustration of the dependence of the vegetation per capita growth rate B on the ambient temperature T. Credit: Chaos, Solitons & Fractals (2023). DOI: 10.1016/j.chaos.2023.114018 A RUDN University mathematician and a colleague developed a theoretical model of mass…