Results 21 to 30 of about 300,548 (279)

A CLASSIFICATION MODEL FOR THE INFERENCE OF SPATIAL PRECISION OF OPENSTREETMAP BUILDINGS WITH INTRINSIC INDICATORS [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
To evaluate the quality of OSM data, similarities between OSM features and their homologous features represented in a reference database are relevant metrics. However, reference databases do not exist everywhere or are not freely available.
I. Maidaneh Abdi   +3 more
doaj   +1 more source

Exploratory Analysis on Pixelwise Image Segmentation Metrics with an Application in Proximal Sensing

open access: yesRemote Sensing, 2022
A considerable number of metrics can be used to evaluate the performance of machine learning algorithms. While much work is dedicated to the study and improvement of data quality and models’ performance, much less research is focused on the study of ...
Paul Melki   +5 more
doaj   +1 more source

On the classification of type D spacetimes [PDF]

open access: yes, 2002
We give a classification of the type D spacetimes based on the invariant differential properties of the Weyl principal structure. Our classification is established using tensorial invariants of the Weyl tensor and, consequently, besides its intrinsic ...
Barnes A.   +16 more
core   +2 more sources

Ricci flow and the metric completion of the space of Kahler metrics [PDF]

open access: yes, 2011
We consider the space of Kahler metrics as a Riemannian submanifold of the space of Riemannian metrics, and study the associated submanifold geometry. In particular, we show that the intrinsic and extrinsic distance functions are equivalent.
A. Rubinstein, Brian Clarke, Yanir
core   +2 more sources

Understanding neural flexibility from a multifaceted definition

open access: yesNeuroImage, 2021
Flexibility is a hallmark of human intelligence. Emerging studies have proposed several flexibility measurements at the level of individual regions, to produce a brain map of neural flexibility.
Dazhi Yin, Marcus Kaiser
doaj   +1 more source

Comparing metrics at large: harmonic vs quo-harmonic coordinates [PDF]

open access: yes, 2001
To compare two space-times on large domains, and in particular the global structure of their manifolds, requires using identical frames of reference and associated coordinate conditions.
A. L. Zel'manov   +14 more
core   +2 more sources

Structure in space of hyperplane element with special metrics

open access: yesLietuvos Matematikos Rinkinys, 2010
The present work analyses intrinsic antiquaternionic structures of metric hyperplane elements. Spaces of metric hyperplane elements is Cartan space generalisation.
Edmundas Mazėtis
doaj   +1 more source

Definition and discussion of the intrinsic efficiency of winglets [PDF]

open access: yesINCAS Bulletin, 2018
Three simple equations are derived to define the “Intrinsic Aerodynamic Efficiency of Winglets” independent of the horizontal extension of the winglet and independent of the winglet’s (relative) height.
Dieter SCHOLZ
doaj   +1 more source

An Intrinsic Behavioral Approach to the Gap Metric [PDF]

open access: yesSIAM Journal on Control and Optimization, 2006
An intrinsic trajectory level approach without any recourse to an algebraic structure of a representation is utilized to develop a behavioural approach to robust stability. In particular it is shown how the controllable behaviour can be constructed at the trajectory level via Zorn's Lemma, and this is utilized to study the controllable-autonomous ...
Bian, Wenming   +2 more
openaire   +3 more sources

Optimization of clustering parameters for single-cell RNA analysis using intrinsic goodness metrics

open access: yesFrontiers in Bioinformatics
IntroductionThe accurate clustering of cell subpopulations is a crucial aspect of single-cell RNA sequencing. The ability to correctly subdivide cell subpopulations hinges on the efficacy of unsupervised clustering.
Nicolina Sciaraffa   +4 more
doaj   +1 more source

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