Results 61 to 70 of about 18,277 (211)

Artificial Intelligence in Autonomous Mobile Robot Navigation: From Classical Approaches to Intelligent Adaptation

Advanced Intelligent Systems, EarlyView.
Artificial intelligence (AI) is reshaping autonomous mobile robot navigation beyond classical pipelines. This review analyzes how AI techniques are integrated into core navigation tasks, including path planning and control, localization and mapping, perception, and context‐aware decision‐making. Learning‐based, probabilistic, and soft‐computing methods
Giovanna Guaragnella, Angelo Cardellicchio, Cosimo Patruno, Massimiliano Nitti, Nicola Pedrocchi, Vito Renò   +5 more
wiley   +1 more source

On the Complexity of Randomly Weighted Voronoi Diagrams

, 2014
In this paper, we provide an $O(n \mathrm{polylog} n)$ bound on the expected complexity of the randomly weighted Voronoi diagram of a set of $n$ sites in the plane, where the sites can be either points, interior-disjoint convex sets, or other more ...
Har-Peled, Sariel, Raichel, Benjamin
core   +1 more source

Denaturation of Water in Alkaline Melts

Chemistry – A European Journal, EarlyView.
Vapor pressure measurements and ab initio molecular‐dynamics simulations reveal that in ultra‐alkaline media with base concentrations up to 70 mol L−1, the activity of water is dramatically reduced by strong bonding interactions. These disrupt traditional hydrogen bonding patterns, alter vapor‐liquid equilibria, and significantly change molecular ...
Xudong Zhang, Oldamur Hollóczki, Johannes Ingenmey, Barbara Kirchner, Michael Ruck   +4 more
wiley   +1 more source

Hyperbolic Delaunay complexes and Voronoi diagrams made practical

Journal of Computational Geometry, 2014
We study Delaunay complexes and Voronoi diagrams in the Poincaré ball, a conformal model of the hyperbolic space, in any dimension. We elaborate on our earlier work on the space of spheres [CCCG'92], giving a detailed description of algorithms.
Mikhail Bogdanov, Olivier Devillers, Monique Teillaud   +2 more
doaj   +1 more source

Higher-order Voronoi diagrams of polygonal objects [PDF]

, 2014
Higher-order Voronoi diagrams are fundamental geometric structures which encode the k-nearest neighbor information. Thus, they aid in computations that require proximity information beyond the nearest neighbor.
Papadopoulou, Evanthia, Zavershynskyi, Maksym   +1 more
core  

On the computation of zone and double zone diagrams

, 2017
Classical objects in computational geometry are defined by explicit relations. Several years ago the pioneering works of T. Asano, J. Matousek and T. Tokuyama introduced "implicit computational geometry", in which the geometric objects are defined by ...
A Granas, A Okabe, A Tarski, AG Corbalan, B Knaster, CK Yap, D Leven, D Reem, Daniel Reem, E Grädel, F Aurenhammer, F Aurenhammer, H Brezis, H Busemann, H Martini, H-D Ebbinghaus, J Chun, J Monterde, J-D Boissonnat, JB Wilker, K Mulmuley, M Berg de, M Ponce, M Sharir, R Fraser, S Prus, S Reich, SC Biasi de, Y Pinchover, ÁG Horváth, ÁG Horváth   +30 more
core   +1 more source

Exploring wave propagation behaviors in rock: A grain‐based perspective on mineral structures

Deep Underground Science and Engineering, EarlyView.
This study investigates wave propagation in rock at the grain scale using a grain‐based model, revealing that mineral elastic modulus significantly influences wave attenuation while grain size and distribution have limited effects. A novel peak particle velocity attenuation prediction model is proposed and validated for grain‐scale wave propagation ...
Zhiyi Liao, Jiachen Xu, Kai Zhang, Changtai Zhou   +3 more
wiley   +1 more source

On polynomials associated to Voronoi diagrams of point sets and crossing numbers [PDF]

Discrete Mathematics & Theoretical Computer Science
Three polynomials are defined for given sets $S$ of $n$ points in general position in the plane: The Voronoi polynomial with coefficients the numbers of vertices of the order-$k$ Voronoi diagrams of $S$, the circle polynomial with coefficients the ...
Mercè Claverol, Andrea de las Heras-Parrilla, David Flores-Peñaloza, Clemens Huemer, David Orden   +4 more
doaj   +1 more source

Further results on the hyperbolic Voronoi diagrams [PDF]

, 2014
In Euclidean geometry, it is well-known that the $k$-order Voronoi diagram in $\mathbb{R}^d$ can be computed from the vertical projection of the $k$-level of an arrangement of hyperplanes tangent to a convex potential function in $\mathbb{R}^{d+1}$: the ...
Nielsen, Frank, Nock, Richard
core   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

Deep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang, Yujing Jiang, Xuepeng Zhang, Yuyong Jiao, Ningbo Li, Xiao Wang, Bo Li   +6 more
wiley   +1 more source