Results 1 to 10 of about 3,795,820 (304)

Hypergeometric-Gaussian Modes [PDF]

open access: yesOptics Letters, 2007
We studied a novel family of paraxial laser beams forming an overcomplete yet nonorthogonal set of modes. These modes have a singular phase profile and are eigenfunctions of the photon orbital angular momentum. The intensity profile is characterized by a
Bruno Piccirillo   +12 more
core   +6 more sources

On the feasibility of using distributed generation to tackle the issue of insufficient transmission capacity of power lines in urban area [PDF]

open access: yesE3S Web of Conferences, 2023
Issues related to the use of distributed generation for solving the problem of insufficient grid capacity in Moscow are analyzed. The problem area, where the current load of the power transmission line (TL) does not meet the requirements for the mode ...
Dmitry Gabdushev   +4 more
doaj   +1 more source

Bootstrap Bandwidth Selection and Confidence Regions for Double Smoothed Default Probability Estimation

open access: yesMathematics, 2022
For a fixed time, t, and a horizon time, b, the probability of default (PD) measures the probability that an obligor, that has paid his/her credit until time t, runs into arrears not later that time t+b.
Rebeca Peláez   +2 more
doaj   +1 more source

Rosalind Krauss. The streak of defiance [PDF]

open access: yesJournal of Art Historiography, 2023
The article depicts the emancipation of American art historian Rosalind Krauss from Clement Greenberg. By tracing the refrain from Krauss’s sixth chapter of The Optical Unconscious a personal and professional history of mentorship evolving into ...
Julia Modes
doaj   +1 more source

Deployment Optimization Algorithms in Wireless Sensor Networks for Smart Cities: A Systematic Mapping Study

open access: yesSensors, 2022
In recent years, different types of monitoring systems have been designed for various applications, in order to turn the urban environments into smart cities.
Huda M. Abdulwahid, Alok Mishra
doaj   +1 more source

Two-Stage Optimization Methods to Solve the DNA-Sample Allocation Problem

open access: yesMathematics, 2022
This paper deals with new methods capable of solving the optimization problem concerning the allocation of DNA samples in plates in order to carry out the DNA sequencing with the Sanger technique.
Diego Noceda-Davila   +2 more
doaj   +1 more source

Local Correlation Integral Approach for Anomaly Detection Using Functional Data

open access: yesMathematics, 2023
The present work develops a methodology for the detection of outliers in functional data, taking into account both their shape and magnitude. Specifically, the multivariate method of anomaly detection called Local Correlation Integral (LOCI) has been ...
Jorge R. Sosa Donoso   +3 more
doaj   +1 more source

Ordinal Time Series Analysis with the R Package otsfeatures

open access: yesMathematics, 2023
The 21st century has witnessed a growing interest in the analysis of time series data. While most of the literature on the topic deals with real-valued time series, ordinal time series have typically received much less attention. However, the development
Ángel López-Oriona, José A. Vilar
doaj   +1 more source

F4: An All-Purpose Tool for Multivariate Time Series Classification

open access: yesMathematics, 2021
We propose Fast Forest of Flexible Features (F4), a novel approach for classifying multivariate time series, which is aimed to discriminate between underlying generating processes. This goal has barely been addressed in the literature. F4 consists of two
Ángel López-Oriona, José A. Vilar
doaj   +1 more source

A Doubly Smoothed PD Estimator in Credit Risk

open access: yesProceedings, 2020
In this work a doubly smoothed probability of default (PD) estimator is proposed based on a smoothed version of the survival Beran’s estimator. The asymptotic properties of both the smoothed survival and PD estimators are proved and their behaviour is ...
Rebeca Peláez Suárez   +2 more
doaj   +1 more source

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