Unsupervised dimensionality reduction method for multivariate time series based on global and local scatter by Zhengxin LI, Gang HU, Fengming ZHANG, Xiaofeng ZHANG, Yongmei ZHAO

“…To solve the problem that the traditional dimensionality reduction methods cannot be directly applied to multivariate time series, and for the existing approaches, it is difficult to ensure the effectiveness of dimensionality reduction while significantly reducing the dimension, an unsupervised dimensionality reduction method of multivariate time series based on global and local scatter was proposed.Firstly, a feature series extraction method was proposed to extract the upper triangular elements of the co-variance matrix of each multivariate time series and combine them into a feature sequence.Then, based on the idea of “minimum local scatter and maximum global scatter,” an unsupervised dimensionality reduction model was presented, which preserved the global information as much as possible while maintaining the local nearest neighbor relationship.Using the feature sequence as the input, the sum of the neighborhood variances of all sample points was minimized, and the variance of all the neighborhood centroids were maximized.The projection matrix obtained by solving the proposed model could be used to perform the dimensionality reduction.Finally, the proposed method was evaluated with experiments on 20 public data sets.The results show that the proposed method can significantly reduce the dimension of multivariate time series, while ensuring the effectiveness of dimensionality reduction.…”
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The impact of chronic airway disease on symptom severity and global suffering in Canadian rhinosinusitis patients by Kimberly Luu, Jason Sutherland, Trafford Crump, Giuping Liu, Arif Janjua

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Selective list of the Catalogues of the VIR Global Collection on vegetables and cucurbits published in 1962–2023 by Editorial Article

“…The Catalogue of the VIR Global Collection series is addressed to plant breeders and crop experts solving practical problems in plan breeding and seed production, plant scientists conducting fundamental and applied research, teachers and learners. …”
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New Geographies of Global Policy-Making: South-South Networks and Rural Development Strategies by Eric Sabourin

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An Adaptive Hybrid Algorithm Based on Particle Swarm Optimization and Differential Evolution for Global Optimization by Xiaobing Yu, Jie Cao, Haiyan Shan, Li Zhu, Jun Guo

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Ingrid Simson et Guillermo Zermeño Padilla, La historiografía en tiempos globales by Antonella Romano

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A Comparative Bibliometric Analysis of Global Research on Adaptation Interventions for Healthy Aging at Home by Wusi Zhou, Xiaoyang Lyu, Yuxi Huang, Biya Jiang, Jianzhong Jiang

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A Global and Sector-Based Comparison of OCT Angiography and Visual Field Defects in Glaucoma by Alan W. Kong, Marcus L. Turner, Murtaza Saifee, Mohit Jethi, Marta Mora, Yvonne Ou

“…To evaluate the correlation of optical coherence tomography angiography (OCTA) and spectral-domain optical coherence tomography (SD-OCT) with visual field for global and sector-based indices among glaucoma and glaucoma-suspected eyes. …”
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Global Dynamics of Shaft Lines Rotating in Surrounding Fluids Application to Thin Fluid Films by Lornage David, Jacquet-Richardet Georges

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The high-resolution global shipping emission inventory by the Shipping Emission Inventory Model (SEIM) by W. Yi, X. Wang, T. He, H. Liu, Z. Luo, Z. Lv, K. He

“…According to the inventory results, the composition of vessel types contributing to global ship emissions remained relatively stable through the years, with container ships consistently contributing <span class="inline-formula">∼</span> 30 % of global ship emissions. …”
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Global and regional perspectives on optimizing thermo-responsive dynamic windows for energy-efficient buildings by Yuan Gao, Jacob C. Jonsson, D. Charlie Curcija, Simon Vidanovic, Tianzhen Hong

“…Previous work has emphasized the significance of thermo-responsive windows in hot climates due to their role in solar heat control and subsequent energy conservation; conversely, our study provides a different perspective. Through a global-scale analysis, we explore over 100 material samples and execute more than 2.8 million simulations across over two thousand global locations. …”
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Existence and Global Behavior of Positive Solutions for Some Fourth-Order Boundary Value Problems by Ramzi S. Alsaedi

“…We establish the existence and uniqueness of a positive solution to the following fourth-order value problem: u(4)(x)=a(x)uσ(x), x∈(0,1) with the boundary conditions u(0)=u(1)=u'(0)=u'(1)=0, where σ∈(-1,1) and a is a nonnegative continuous function on (0, 1) that may be singular at x=0 or x=1. We also give the global behavior of such a solution.…”
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Necessary conditions for local and global existence to a reaction-diffusion system with fractional derivatives by Kamel Haouam, Mourad Sfaxi

“…We give some necessary conditions for local and global existence of a solution to reaction-diffusion system of type (FDS) with temporal and spacial fractional derivatives. …”
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How do transnational grassroots networks reframe the global norms of water and forests governance? by Émilie Dupuits, Géraldine Pflieger

“…The current era of globalization and commodification has had a substantial impact on common-pool resources governance. …”
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Global trends in surgical approach to neonatal brachial plexus palsy: a systematic review by Michael F. Levidy, Amanda Azer, Jasmine Shafei, Nivetha Srinivasan, Jasmine Mahajan, Shivani Gupta, George Abdelmalek, Krittika Pant, Kunj Jain, Yash Shah, Zheshi Zheng, Johnny Chuieng-Yi Lu, Tommy Nai-Jen Chang, Alice Chu, Aleksandra McGrath, Aleksandra McGrath

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Sylvain Maechler, Accounting for Nature: Risk, Uncertainty, and the Global Political Economy of the Ecological Crisis by Sylvain Maechler

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Implicaciones sociales y económicas del entorno global:notas para la discusión by María Estela Orozco Hernández

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Global Sound Field Reconstruction in the Room Environment Based on Inverse Wave-Based Simulation by Haitao Wang, Lin Zhang, Yakun Wang, Yaocheng Nie, Xiangyang Zeng

“…An inverse wave modeling-based method is proposed for globally reconstructing the sound field in room environments. …”
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European Evidence Warrant: Status and Possibilities of its Application in the Reducing the Global Cybernetic Criminality by M. A. Moryakova

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On the Global Stability Properties and Boundedness Results of Solutions of Third-Order Nonlinear Differential Equations by Muzaffer Ateş

“…We studied the global stability and boundedness results of third-order nonlinear differential equations of the form . …”
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