Results 11 to 20 of about 925,172 (288)

A multipurpose machine learning approach to predict COVID-19 negative prognosis in São Paulo, Brazil

open access: yesScientific Reports, 2021
The new coronavirus disease (COVID-19) is a challenge for clinical decision-making and the effective allocation of healthcare resources. An accurate prognostic assessment is necessary to improve survival of patients, especially in developing countries ...
Fernando Timoteo Fernandes   +5 more
doaj   +1 more source

Method for Developing Combinatorial Generation Algorithms Based on AND/OR Trees and Its Application

open access: yesMathematics, 2020
In this paper, we study the problem of developing new combinatorial generation algorithms. The main purpose of our research is to derive and improve general methods for developing combinatorial generation algorithms.
Yuriy Shablya   +2 more
doaj   +1 more source

New developments of the Z-EDM algorithm [PDF]

open access: yesSixth International Conference on Intelligent Systems Design and Applications, 2006
In this paper we address some open questions on the recently proposed Zero-Error Density Maximization algorithm for MLP training. We propose a new version of the cost function that solves a training problem encountered in previous work and prove that the use of a nonparametric density estimator preserves the optimal solution.
Luis M. Silva   +2 more
openaire   +1 more source

How Algorithmic Systems Changed Communication in a Digital Society

open access: yesMedia and Communication, 2021
This thematic issue invited submissions that address the opportunities and controversies related to algorithmic influence in a digital society. A total of 11 articles address how the use of algorithms has changed communication in various contexts, and ...
Sanne Kruikemeier   +2 more
doaj   +1 more source

Energy saving in industry [PDF]

open access: yesE3S Web of Conferences, 2021
The article discusses the basic principles of energy saving in industry and methods for identifying and assessing the reserves of energy savings in industrial enterprises.
Rakhmonov I U   +4 more
doaj   +1 more source

A Radial Hybrid Estimation of Distribution Algorithm for the Truck and Trailer Routing Problem

open access: yesMathematical and Computational Applications, 2023
The truck and trailer routing problem (TTRP) has been widely studied under different approaches. This is due to its practical characteristic that makes its research interesting.
Ricardo Pérez-Rodríguez   +1 more
doaj   +1 more source

Set-Oriented Mining for Association Rules in Relational Databases [PDF]

open access: yes, 1995
Describe set-oriented algorithms for mining association rules. Such algorithms imply performing multiple joins and may appear to be inherently less efficient than special-purpose algorithms. We develop new algorithms that can be expressed as SQL queries,
Houtsma, M.A.W., Swami, A.
core   +3 more sources

A new development algorithm for permeability prediction: A new milestone

open access: yesFrontiers in Ecology and Evolution, 2022
Permeability is one of the most important reservoir rock parameters in petroleum engineering, reservoir, and exploitation. This parameter causes the movement of hydrocarbon reserves in the reservoir rock. Therefore, it is an important parameter from the economic point of view because it greatly impacts the amount of extraction from the reservoir rock ...
Kai Sun, Liqin Dong
openaire   +2 more sources

A New Approach for Developing Segmentation Algorithms for Strongly Imbalanced Data

open access: yesIEEE Access, 2019
During the past two decades, the problem of how to develop efficient segmentation algorithms for dealing with strongly imbalanced data has been drawing much attention of researchers and practitioners in the field of data mining.
Kazuki Fujiwara   +2 more
doaj   +1 more source

Accident detection algorithm using features associated with risk factors and acceleration data from stunt performers

open access: yesETRI Journal, 2022
Accidental falls frequently occur during activities of daily living. Although many studies have proposed various accident detection methods, no highperformance accident detection system is available.
Mingi Jeong, Sangyeoun Lee, Kang Bok Lee
doaj   +1 more source

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