Results 1 to 10 of about 166,383,871 (189)

Trajectory Clustering Algorithm Based on Group and Density [PDF]

Jisuanji gongcheng, 2021
The existing density-based clustering methods are mainly used for point data clustering, and not suitable for large-scale trajectory data. To address the problem, this paper proposes a trajectory clustering algorithm based on group and density. According
YU Qingying, ZHAO Yajun, YE Zitong, HU Fan, XIA Yun
doaj   +1 more source

ON THE PROPERTIES OF THE SET OF TRAJECTORIES OF THE NONLINEAR CONTROL SYSTEM WITH QUADRATIC INTEGRAL CONSTRAINT ON THE CONTROL FUNCTIONS

Ural Mathematical Journal, 2023
In this paper the control system described by a nonlinear differential equation is studied. It is assumed that the control functions have a  quadratic integral constraint, more precisely, the admissible control functions are chosen from the ellipsoid of ...
Anar Huseyin, Nesir Huseyin
doaj   +1 more source

Exploring congruent diversification histories with flexibility and parsimony

Methods in Ecology and Evolution, 2023
Using phylogenies of present‐day species to estimate diversification rate trajectories—speciation and extinction rates over time—is a challenging task due to non‐identifiability issues. Given a phylogeny, there exists an infinite set of trajectories that
Jérémy Andréoletti, Hélène Morlon
doaj   +1 more source

Precompactness of the set of trajectories of the controllable system described by a nonlinear Volterra integral equation

Mathematical Modelling and Analysis, 2012
In this paper the controllable system whose behaviour is described by a nonlinear Volterra integral equation, is studied. The set of admissible control functions is the closed ball of the space L p (p > 1) with radius µ 0 and centered at the origin.
Anar Huseyin, Nesir Huseyin
doaj   +1 more source

Approximation of the set of trajectories of the nonlinear control system with limited control resources

Mathematical Modelling and Analysis, 2018
In this paper the control system described by a Urysohn type integral equation is studied. It is assumed that the control functions have integral constraint.
Nesir Huseyin, Anar Huseyin, Khalik Guseinov   +2 more
doaj   +1 more source

Approximation of the Sections of the Set of Trajectories of the Control System Described by a Nonlinear Volterra Integral Equation

Mathematical Modelling and Analysis, 2015
Approximation of the sections of the set of trajectories of the control system described by a nonlinear Volterra integral equation is studied. The admissible control functions are chosen from the closed ball of the space Lp, p > 1, with radius µ and ...
Anar Huseyin, Nesir Huseyin, Khalik G. Guseinov   +2 more
doaj   +1 more source

Compactness of the set of trajectories of the control system described by a Urysohn type integral equation with quadratic integral constraints on the control functions

Journal of Inequalities and Applications, 2016
In this paper the control system is considered described by a Urysohn type integral equation which is nonlinear with respect to the state vector and is affine with respect to the control vector.
Idham A Alias, Nesir Huseyin, Anar Huseyin   +2 more
doaj   +1 more source

On the approximation of the set of trajectories of control system described by a Volterra integral equation

Nonlinear Analysis, 2014
In this paper, the set of trajectories of the control system described by a nonlinear Volterra integral equation is studied. It is assumed that the set of admissible control functions is the closed ball of the space Lp, p > 1, with radius µ and centered ...
Anar Huseyin
doaj   +1 more source

Application of Mini-Batch Metaheuristic Algorithms in Problems of Optimization of Deterministic Systems with Incomplete Information about the State Vector

Algorithms, 2021
In this paper, we consider the application of the zero-order mini-batch optimization method in the problem of finding optimal control of a pencil of trajectories of nonlinear deterministic systems in the case of incomplete information about the state ...
Andrei V. Panteleev, Aleksandr V. Lobanov   +1 more
doaj   +1 more source

Mining Road Traffic Rules with Signal Temporal Logic and Grammar-Based Genetic Programming

Applied Sciences, 2021
Traffic systems, where human and autonomous drivers interact, are a very relevant instance of complex systems and produce behaviors that can be regarded as trajectories over time.
Federico Pigozzi, Eric Medvet, Laura Nenzi   +2 more
doaj   +1 more source