Results 31 to 40 of about 25,613,351 (218)

Large-scale Multi-view Subspace Clustering in Linear Time [PDF]

open access: yesAAAI Conference on Artificial Intelligence, 2019
A plethora of multi-view subspace clustering (MVSC) methods have been proposed over the past few years. Researchers manage to boost clustering accuracy from different points of view.
Zhao Kang   +5 more
semanticscholar   +1 more source

Time Scales in Epidemiological Analysis: An Empirical Comparison [PDF]

open access: yesInternational Journal of Statistics and Probability 5 (2016) 91 - 101, 2015
The Cox proportional hazards model is routinely used to analyze time-to-event data. To use this model requires the definition of a unique well-defined time scale. Most often, observation time is used as the time scale for both clinical and observational studies.
arxiv   +1 more source

Temporal scale selection in time-causal scale space [PDF]

open access: yes, 2017
When designing and developing scale selection mechanisms for generating hypotheses about characteristic scales in signals, it is essential that the selected scale levels reflect the extent of the underlying structures in the signal. This paper presents a theory and in-depth theoretical analysis about the scale selection properties of methods for ...
arxiv   +1 more source

Almost automorphic functions on the quantum time scale and applications [PDF]

open access: yesDiscrete Dynamics in Nature and Society, Volume 2017 (2017), Article ID 1526478, 9 pages, 2017
In this paper, we first propose two types of concepts of almost automorphic functions on the quantum time scale. Secondly, we study some basic properties of almost automorphic functions on the quantum time scale. Then, we introduce a transformation between functions defined on the quantum time scale and functions defined on the set of generalized ...
arxiv   +1 more source

Understanding, communicating, and imagining urban biodiversity in German and Italian cities

open access: yesnpj Climate Action
Urban biodiversity has recently emerged as a key focus in urban planning discourse and is the cornerstone of the EU biodiversity strategy for 2030. This strategy proposes ambitious urban greening plans for cities with over 20,000 inhabitants to address ...
Alessandro Arlati, Melanie Nagel
doaj   +1 more source

Decomposition Methods for Dynamically Monotone Two-Time-Scale Stochastic Optimization Problems [PDF]

open access: yesarXiv, 2023
In energy management, it is common that strategic investment decisions (storage capacity, production units) are made at a slow time scale, whereas operational decisions (storage, production) are made at a fast time scale: for such problems, the total number of decision stages may be huge.
arxiv  

N-Dimensional Lattice Integrable Systems and Their bi-Hamiltonian Structure on the Time Scale Using the R-Matrix Approach

open access: yesAxioms
A time scale is a special measure chain that can unify continuous and discrete spaces, enabling the construction of integrable equations. In this paper, with the Lax operator generated by the displacement operator, N-dimensional lattice integrable ...
Yong Fang   +3 more
doaj   +1 more source

Unilateral Laplace Transforms on Time Scales

open access: yesMathematics, 2022
We review the direct and inverse Laplace transforms on non-uniform time scales. We introduce full backward-compatible unilateral Laplace transforms and studied their properties. We also present the corresponding inverse integrals and some examples.
Müfit Şan, Manuel D. Ortigueira
doaj   +1 more source

Some integral inequalities on time scales [PDF]

open access: yesResults in Mathematics 64 (2013), no. 3, 371--381, 2011
In this paper, some new integral inequalities on time scales are presented by using elementarily analytic methods in calculus of time scales.
arxiv   +1 more source

The AA-iterative algorithm in hyperbolic spaces with applications to integral equations on time scales

open access: yesAIMS Mathematics
We explored the $ AA $-iterative algorithm within the hyperbolic spaces (HSs), aiming to unveil a stability outcome for contraction maps and convergence outcomes for generalized $ (\alpha, \beta) $-nonexpansive ($ G\alpha \beta N $) maps in such spaces ...
Aynur Şahin , Zeynep Kalkan
doaj   +1 more source

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