Results 11 to 20 of about 225 (98)

ParaDime: A Framework for Parametric Dimensionality Reduction. [PDF]

Comput Graph Forum, 2023
Abstract ParaDime is a framework for parametric dimensionality reduction (DR). In parametric DR, neural networks are trained to embed high‐dimensional data items in a low‐dimensional space while minimizing an objective function. ParaDime builds on the idea that the objective functions of several modern DR techniques result from transformed inter‐item ...
Hinterreiter A, Humer C, Kainz B, Streit M.   +3 more
europepmc   +2 more sources

Gone With the Wind: Exploring a Vanished Rock Dove, <i>Columba livia</i>, Hybrid Zone in the Sahara Desert. [PDF]

Ecol Evol
In this study, we tested the hypothesis of the existence of a hybrid zone between two differentiated rock dove lineages, which may contribute significantly to their divergence. By analyzing newly generated genomic data from previously unsampled African rock dove populations, along with publicly available rock dove genomes, we provide evidence for the ...
Hernández-Alonso G, van Grouw H, Farahani MF, Günther T.   +3 more
europepmc   +2 more sources

Predicting patient-reported quality of vision through multifocal optics. [PDF]

Ophthalmic Physiol Opt
Abstract Purpose To explore the agreement between computationally modelled point‐spread functions (PSFs) and multifocal soft contact lens wearers' descriptions of image quality. Methods In Phase 1, participants were fitted with a single vision soft contact lens (SCL) in the left eye, and four different multifocal (MF) SCLs in the right eye in ...
Kollbaum P, Meyer D, Murthy N, Gantes-Nunez J, Jaskulski M, Rickert M.   +5 more
europepmc   +2 more sources

Perception of political influence within the general population of the United Kingdom

International Social Science Journal, Volume 73, Issue 249, Page 771-787, September 2023., 2023
Abstract When reflecting upon politics, people express judgements about the political influence exerted by different institutions. However, the nature of these judgements remains to be studied by scholars. The paper explores this with a focus on the United Kingdom.
Francesco Rigoli
wiley   +1 more source

Development of intraindividual value structures in middle childhood: A multicultural and longitudinal investigation

Journal of Personality, Volume 91, Issue 2, Page 482-496, April 2023., 2023
Abstract Objective We examined changes in value interrelations during middle childhood. In line with the Personal Values Theory, we expected a value system, with individuals similarly valuing related motivations, and setting priorities between conflicting motivations.
Ella Daniel, Anna K. Döring, Jan Cieciuch   +2 more
wiley   +1 more source

From signing up to staying in: Exploring factors associated with engagement in parenting programs

Family Relations, Volume 75, Issue 2, Page 1453-1471, April 2026.
Abstract Objective This study explored individual and program factors associated with engagement in early childhood parenting programs in the United Arab Emirates. Background Parenting programs can improve caregiver well‐being, parenting skills, and child outcomes, but their success relies on effective recruitment and sustained participation ...
Michelle P. Kelly, Dean Cairns, Ashlyn Smith, Khawla Barley, Andrew E. Lincoln   +4 more
wiley   +1 more source

Experimental evidence for the “greening” of proglacial streams: Biofilm responses to a transition from glacial to groundwater sources

Limnology and Oceanography, Volume 71, Issue 1, January 2026.
Abstract Climate change‐induced glacier retreat leads to the reorganization of fluvial landscapes in proglacial terrains and transitions between streams fed predominantly by glacial meltwater and groundwater. To explore the effects of such ecosystem transitions on benthic biofilm communities, we gradually mixed water from a glacier‐fed stream (GFS) and
Hannes Peter, Jade Brandani, Tyler J. Kohler, Grégoire Michoud, Nicola Deluigi, Tom J. Battin   +5 more
wiley   +1 more source

Aerial Localization and Navigation for Surveillance of Large, Featureless, GNSS‐Denied Maritime Environments

Journal of Field Robotics, Volume 42, Issue 8, Page 4215-4235, December 2025.
ABSTRACT In this study, we tackle the problem of surveilling a large area over the sea without access to the global navigation satellite system (GNSS) while searching for the known target vessel. The system utilizes an unmanned aerial vehicle (UAV) equipped with long‐range radio frequency (LoRa) localization and an RGB camera to detect the target ...
Marijana Peti, Lovro Marković, Ivan Lončar, Antonella Barišić Kulaš, Frano Petric, Ana Milas, Jurica Goričanec, Marko Car, Matko Orsag, Barbara A. Ferreira, Stjepan Bogdan   +10 more
wiley   +1 more source

Multidimensional Scaling Using Majorization: SMACOF in R

Journal of Statistical Software, 2009
In this paper we present the methodology of multidimensional scaling problems (MDS) solved by means of the majorization algorithm. The objective function to be minimized is known as stress and functions which majorize stress are elaborated. This strategy
Jan de Leeuw, Patrick Mair
doaj  

Multidimensional Scaling With Heaviside Weighting: Extensions to Curvilinear Component Analysis and Curvilinear Distance Analysis

Stat, Volume 14, Issue 3, September 2025.
ABSTRACT In this article, I propose extensions to multidimensional scaling (MDS) variants that use Heaviside weighting for manifold learning, namely, curvilinear component analysis and curvilinear distance analysis. These methods weight the approximation error with a Heaviside function to ignore larger fitted distances in the configuration, thus ...
Thomas Rusch
wiley   +1 more source