Results 71 to 80 of about 193,838 (164)
Modeling and Analyzing Urban Networks and Amenities With OSMnx
Geographical Analysis, EarlyView.ABSTRACT OSMnx is a Python package for downloading, modeling, analyzing, and visualizing urban networks and any other geospatial features from OpenStreetMap data. A large and growing body of literature uses it to conduct scientific studies across the disciplines of geography, urban planning, transport engineering, computer science, and others.
Geoff Boeing
wiley +1 more source
Properads in Algebra, Topology, Geometry and Mathematical Physics [PDF]
, 2009 Ce mémoire contient un résumé de mes travaux sur le thème des propérades et de leurs applications en algèbre, topologie, géométrie et physique mathématique.
openaire +1 more source
An Interview With Peter Rousseeuw
International Statistical Review, Volume 93, Issue 1, Page 1-17, April 2025.Summary Peter J. Rousseeuw is a statistician known mainly for his work on robust statistics and cluster analysis. Among his creations are least trimmed squares regression, the minimum covariance determinant estimator, the partitioning around medoids clustering method and the silhouettes graphical display.
Mia Hubert
wiley +1 more source
Testing covariance separability for continuous functional data
Journal of Time Series Analysis, Volume 46, Issue 3, Page 402-420, May 2025.Analyzing the covariance structure of data is a fundamental task of statistics. While this task is simple for low‐dimensional observations, it becomes challenging for more intricate objects, such as multi‐variate functions. Here, the covariance can be so complex that just saving a non‐parametric estimate is impractical and structural assumptions are ...
Holger Dette +2 more
wiley +1 more source
A note on Johansen's rank conditions and the Jordan form of a matrix
Journal of Time Series Analysis, EarlyView.This note presents insights on the Jordan structure of a matrix which are derived from an extension of the I(1) and I(2) conditions in Johansen (1996). It is first observed that these conditions not only characterize, as it is well known, the size (1 or 2) of the largest Jordan block in the Jordan form of the companion matrix but more generally the ...
Massimo Franchi
wiley +1 more source
Polar Coordinates for the 3/2 Stochastic Volatility Model
Mathematical Finance, EarlyView.ABSTRACT The 3/2 stochastic volatility model is a continuous positive process s with a correlated infinitesimal variance process ν$\nu $. The exact definition is provided in the Introduction immediately below. By inspecting the geometry associated with this model, we discover an explicit smooth map ψ$ \psi $ from (R+)2$({\mathbb{R}}^+)^2 $ to the ...
Paul Nekoranik
wiley +1 more source
Aeroelastic force prediction via temporal fusion transformers
Computer-Aided Civil and Infrastructure Engineering, EarlyView.Abstract Aero‐structural shape design and optimization of bridge decks rely on accurately estimating their self‐excited aeroelastic forces within the design domain. The inherent nonlinear features of bluff body aerodynamics and the high cost of wind tunnel tests and computational fluid dynamics (CFD) simulations make their emulation as a function of ...
Miguel Cid Montoya +4 more
wiley +1 more source
Does Less Education Harm Health? Evidence From a Natural Experiment in a Developing Country
Oxford Bulletin of Economics and Statistics, EarlyView.ABSTRACT We investigate the health outcome effects of a reduction in years of schooling in Egypt in 1988, a policy change that moves in the opposite direction in relation to the extant literature. We exploit this policy change as a natural experiment and employ a fuzzy regression discontinuity design to investigate a range of objectively measured ...
Islam Khalil +2 more
wiley +1 more source
Effects of teachers' aides on students with special needs
The Scandinavian Journal of Economics, Volume 127, Issue 2, Page 342-365, April 2025.Abstract This study investigates the effect of increasing educational support in regular classes on students with special education needs (SEN). We exploit previous randomized controlled trials that added teachers' aides to Danish grade 6 classes combined with rich register data informative about SEN and school assignment.
Simon Calmar Andersen +2 more
wiley +1 more source
Image of mathematics: A case study of two women's early mathematics experiences
School Science and Mathematics, EarlyView.Abstract People often view mathematics as abstract, cold, and irrelevant to real life, and their school experiences likely influence such views. In this case study, we investigated the mathematics experiences of two women who participated in an afterschool girls‐only STEM club 30 years ago when they were in fifth and sixth grades.
Lili Zhou +4 more
wiley +1 more source