Results 11 to 20 of about 396,215 (311)

Metric projection for dynamic multiplex networks [PDF]

open access: goldHeliyon, 2016
Evolving multiplex networks are a powerful model for representing the dynamics along time of different phenomena, such as social networks, power grids, biological pathways. However, exploring the structure of the multiplex network time series is still an
Giuseppe Jurman
doaj   +4 more sources

Relative Distance Metric Leaning Based on Clustering Centralization and Projection Vectors Learning for Person Re-Identification

open access: goldIEEE Access, 2018
Existing projection-based person re-identification methods usually suffer from long time training, high dimension of projection matrix, and low matching rate.
Tongguang Ni   +3 more
doaj   +4 more sources

Coupled Projection Transfer Metric Learning for Cross-Session Emotion Recognition from EEG [PDF]

open access: goldSystems, 2022
Distribution discrepancies between different sessions greatly degenerate the performance of video-evoked electroencephalogram (EEG) emotion recognition.
Fangyao Shen   +4 more
doaj   +2 more sources

The Representations and Continuity of the Metric Projections on Two Classes of Half-Spaces in Banach Spaces [PDF]

open access: goldAbstract and Applied Analysis, 2014
We show a necessary and sufficient condition for the existence of metric projection on a class of half-space Kx0*,c={x∈X:x*(x)≤c} in Banach space. Two representations of metric projections PKx0*,c and PKx0,c are given, respectively, where Kx0,c stands ...
Zihou Zhang, Chunyan Liu
doaj   +2 more sources

The Representation and Continuity of a Generalized Metric Projection onto a Closed Hyperplane in Banach Spaces [PDF]

open access: goldAbstract and Applied Analysis, 2013
Let be a closed bounded convex subset of a real Banach space with as its interior and the Minkowski functional generated by the set . For a nonempty set in and , is called the generalized best approximation to from if for all . In this paper,
XianFa Luo, JianYong Wang
doaj   +2 more sources

On projections of metric spaces

open access: greenJournal of Computational Geometry, 2011
Journal of Computational Geometry, Vol. 5 No. 1 (2014)
Mark Kozdoba
openaire   +5 more sources

Joint Geometry and Color Projection-Based Point Cloud Quality Metric

open access: yesIEEE Access, 2022
Point cloud coding solutions have been recently standardized to address the needs of multiple application scenarios. The design and assessment of point cloud coding methods require reliable objective quality metrics to evaluate the level of degradation ...
Alireza Javaheri   +3 more
doaj   +3 more sources

Residual metric learning with class-specific consistency for multiclass classification. [PDF]

open access: yesPLoS ONE
Least squares regression (LSR) has been widely used in pattern recognition due to its concise form and ease of solution. However, inadequate exploration of inter-class margin and intra-class similarity limits its discriminative ability.
Kai Hu, Jiajun Ma
doaj   +2 more sources

Selections associated to the metric projection

open access: greenJournal of Numerical Analysis and Approximation Theory, 1995
Not available.
Ştefan Cobzaş, C. Mustăţa
doaj   +3 more sources

Projectively related metrics, Weyl nullity, and metric projectively invariant equations [PDF]

open access: yesProceedings of the London Mathematical Society, 2015
A metric projective structure is a manifold equipped with the unparametrised geodesics of some pseudo-Riemannian metric. We make acomprehensive treatment of such structures in the case that there is a projective Weyl curvature nullity condition. The analysis is simplified by a fundamental and canonical 2-tensor invariant that we discover. It leads to a
Gover, A. Rod, Matveev, Vladimir S.
openaire   +4 more sources

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