[HTML][HTML] Echo state networks: novel reservoir selection and hyperparameter optimization model for time series forecasting

CH Valencia, MMBR Vellasco, K Figueiredo - Neurocomputing, 2023 - Elsevier
The use of computational intelligence models for multi-step time series forecasting tasks has
presented satisfactory results in such a way that they are considered models with an …

Combining machine learning techniques, microanalyses and large geochemical datasets for tephrochronological studies in complex volcanic areas: New age …

M Petrelli, R Bizzarri, D Morgavi, A Baldanza… - Quaternary …, 2017 - Elsevier
Abstract Characterization, correlation and provenance determination of tephra samples in
sedimentary sections (tephrochronological studies) are powerful tools for establishing ages …

Automated novelty detection in the WISE survey with one-class support vector machines

A Solarz, M Bilicki, M Gromadzki, A Pollo… - Astronomy & …, 2017 - aanda.org
Wide-angle photometric surveys of previously uncharted sky areas or wavelength regimes
will always bring in unexpected sources–novelties or even anomalies–whose existence and …

Machine learning technique for morphological classification of galaxies from the SDSS. III. Image-based inference of detailed features

V Khramtsov, IB Vavilova, DV Dobrycheva… - arxiv preprint arxiv …, 2022 - arxiv.org
This paper follows series of our works on the applicability of various machine learning
methods to the morphological galaxy classification (Vavilova et al., 2021, 2022). We …

Multidimensional data-driven classification of emission-line galaxies

V Stampoulis, DA van Dyk, VL Kashyap… - Monthly Notices of the …, 2019 - academic.oup.com
We propose a new soft clustering scheme for classifying galaxies in different activity classes
using simultaneously four emission-line ratios: log ([]/H α), log ([]/H α), log ([]/H α), and log …

Classifying galaxy spectra at 0.5 < z < 1 with self-organizing maps

S Rahmani, H Teimoorinia… - Monthly Notices of the …, 2018 - academic.oup.com
The spectrum of a galaxy contains information about its physical properties. Classifying
spectra using templates helps to elucidate the nature of a galaxy's energy sources. In this …

Spectral classification of LAMOST emission line galaxies based on machine learning methods

LL Wang, WY Zheng, LX Rong, GJ Yang, JL Zhang… - New Astronomy, 2023 - Elsevier
Spectral classification of emission-line galaxies (ELGs) plays an important role to
understand the formation and evolution of different galaxies. Machine learning can obtain …

Se-ResNet+ SVM Model: An Effective Method of Searching for Hot Subdwarfs from LAMOST

Z Cheng, X Kong, T Wu, A Zhang, B Liu… - The Astrophysical …, 2024 - iopscience.iop.org
This paper presents a robust neural network approach for identifying hot subdwarfs. Our
method leveraged the Squeeze-and-Excitation Residual Network to extract abstract …

Searching for Hot Subdwarf Stars from the LAMOST Spectra. III. Classification of Hot Subdwarf Stars in the Fourth Data Release of LAMOST Using a Deep Learning …

Y Bu, J Zeng, Z Lei, Z Yi - The Astrophysical Journal, 2019 - iopscience.iop.org
Hot subdwarf stars are core He burning stars located at the blue end of the horizontal
branch, which is also known as the extreme horizontal branch. The spectra of hot subdwarf …

Adaptive stellar spectral subclass classification based on Bayesian SVMs

C Du, A Luo, H Yang - New astronomy, 2017 - Elsevier
Stellar spectral classification is one of the most fundamental tasks in survey astronomy.
Many automated classification methods have been applied to spectral data. However, their …