Results 21 to 30 of about 150 (103)

Survey on Hierarchical Clustering for Machine Learning [PDF]

open access: yesJisuanji kexue, 2023
Clustering analysis plays a key role in machine learning,data mining and biological DNA information.Clustering algorithms can be categorized into flat clustering and hierarchical clustering.Flat clustering mostly divides the data set into K parallel ...
WANG Shaojiang, LIU Jia, ZHENG Feng, PAN Yicheng
doaj   +1 more source

Improved Epstein–Glaser renormalization in x-space versus differential renormalization

open access: yesNuclear Physics B, 2014
Renormalization of massless Feynman amplitudes in x-space is reexamined here, using almost exclusively real-variable methods. We compute a wealth of concrete examples by means of recursive extension of distributions.
José M. Gracia-Bondía   +2 more
doaj   +1 more source

Dynamic generalised additive models (DGAMs) for forecasting discrete ecological time series

open access: yesMethods in Ecology and Evolution, 2023
Generalised additive models (GAMs) are increasingly popular tools for estimating smooth nonlinear relationships between predictors and response variables.
Nicholas J. Clark, Konstans Wells
doaj   +1 more source

A foundation for real recursive function theory

open access: yesAnnals of Pure and Applied Logic, 2009
The class of recursive real functions, REC\((\mathbb R)\), is defined as the smallest set containing the constant functions 0, 1, and \(-1\), the projection functions, and closed under composition, aggregation, differential recursion, and the lim sup operator.
José Félix Costa   +2 more
openaire   +4 more sources

Some Competition Programming Problems as the Beginning of Artificial Intelligence

open access: yesInformatics in Education, 2007
We consider in this paper some programming competition problems (which are near to some problems of ACM competitions) of the following subjects: we can make their solution using both Prolog and a classical procedure-oriented language.
Boris MELNIKOV, Elena MELNIKOVA
doaj   +1 more source

A Novel Neural Network with the Ability to Express the Extreme Points Distribution Features of Higher Derivatives of Physical Processes

open access: yesApplied Sciences, 2023
Higher derivatives are important to interpret the physical process. However, higher derivatives calculated from measured data often deviate from the real ones because of measurement errors.
Xibo Wang   +4 more
doaj   +1 more source

“dynmix”: An R package for the estimation of dynamic finite mixtures

open access: yesSoftwareX, 2023
“dynmix” is an R package allowing to estimate dynamic mixture models with state-space components and with normal regression components. Additionally it implements clustering with normal mixture.
Krzysztof Drachal
doaj   +1 more source

Study of algorithmic approaches to digital signal filtering and the influence of input quantization on output accuracy [PDF]

open access: yesE3S Web of Conferences
This article explores the design and application of intelligent control systems tailored for industrial and production environments, with a particular focus on integrating advanced digital filtering and noise reduction strategies.
Shermuradova Malika   +4 more
doaj   +1 more source

Recursive and nonextendible functions over the reals; filter foundation for recursive analysis.II

open access: yesAnnals of Pure and Applied Logic, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Iraj Kalantari, Lawrence Welch
openaire   +2 more sources

A Hypergraph Approach for Estimating Growth Mechanisms of Complex Networks

open access: yesIEEE Access, 2022
Temporal datasets that describe complex interactions between individuals over time are increasingly common in various domains. Conventional graph representations of such datasets may lead to information loss since higher-order relationships between more ...
Masaaki Inoue   +2 more
doaj   +1 more source

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