Results 41 to 50 of about 283,852 (314)
PointGeo: Geometry Transformer for Point Cloud Analysis
CAAI Transactions on Intelligence TechnologyPoint cloud processing plays a crucial role in tasks such as point cloud classification, partial segmentation and semantic segmentation. However, existing processing frameworks are constrained by several challenges, such as recognising features in ...
Li An +5 more
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Point derivation of partial geometries
European Journal of Combinatorics, 2003 The author generalizes a method for constructing partial quadrangles from generalized quadrangles. See \textit{F. De Clerck} and \textit{H. Van Maldeghem} [in Handbook of incidence geometry: buildings and foundations, 433--475 (1995; Zbl 0823.51010)] for the method and nomenclature.
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Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
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Fixed point geometry in chaotic neural networks
Physical Review ResearchUnderstanding the high-dimensional chaotic dynamics occurring in complex biological systems such as recurrent neural networks or ecosystems remains a conceptual challenge.
Jakob Stubenrauch +4 more
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Back to geometry: Efficient indoor space segmentation from point clouds by 2D–3D geometry constrains
International Journal of Applied Earth Observations and GeoinformationThis paper addresses the challenge of indoor space segmentation from 3D point clouds, which is essential for understanding interior layouts, reconstructing 3D structures, and developing indoor navigation maps.
Shengjun Tang +8 more
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OpenCRG Models From Different Data Sources to Support Vehicle Simulations
IEEE Access, 2022 Digital twins of road surfaces support multiple engineering applications. Remote sensing technologies provide information from the entire surface of the pavement by high accuracy point clouds. Pavement errors and differences from designed geometry can be
Tamas Lovas +5 more
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Preferred Point Geometry and Statistical Manifolds
The Annals of Statistics, 1993 The authors introduce a mathematical object of a preferred point geometry. Its definition and use are based on two standpoints: to be as natural and simple as possible from both the statistical and the geometric viewpoint, and to reflect in a natural way the special status of the preferred point.
Critchley, Frank +2 more
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FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
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Cosmological evolution and dark energy in osculating Barthel–Randers geometry
European Physical Journal C: Particles and Fields, 2021 We consider the cosmological evolution in an osculating point Barthel–Randers type geometry, in which to each point of the space-time manifold an arbitrary point vector field is associated.
Rattanasak Hama +3 more
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EQUILATERAL POINT SETS IN ELLIPTIC GEOMETRY
Indagationes Mathematicae (Proceedings), 1966 This chapter highlights equilateral point sets in elliptic geometry. Elliptic space of r−1 dimensions E r−1 is obtained from r -dimensional vector space R r with inner product ( a , b ). For 1 , any k -dimensional linear subspace R k of R r is called a ( k−1 )-dimensional elliptic subspace E k−1 .
van Lint, J.H., Seidel, J.J.
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