no code implementations • 13 May 2022 • Germán García-Jara, Pavlos Protopapas, Pablo A. Estévez
Due to the latest advances in technology, telescopes with significant sky coverage will produce millions of astronomical alerts per night that must be classified both rapidly and automatically.
no code implementations • 20 Jan 2022 • Óscar Pimentel, Pablo A. Estévez, Francisco Förster
We offer three main contributions: 1) Based on temporal modulation and attention mechanisms, we propose a Deep attention model (TimeModAttn) to classify multi-band light-curves of different SN types, avoiding photometric or hand-crafted feature computations, missing-value assumptions, and explicit imputation/interpolation methods.
no code implementations • 7 Aug 2020 • Rodrigo Carrasco-Davis, Esteban Reyes, Camilo Valenzuela, Francisco Förster, Pablo A. Estévez, Giuliano Pignata, Franz E. Bauer, Ignacio Reyes, Paula Sánchez-Sáez, Guillermo Cabrera-Vives, Susana Eyheramendy, Márcio Catelan, Javier Arredondo, Ernesto Castillo-Navarrete, Diego Rodríguez-Mancini, Daniela Ruz-Mieres, Alberto Moya, Luis Sabatini-Gacitúa, Cristóbal Sepúlveda-Cobo, Ashish A. Mahabal, Javier Silva-Farfán, Ernesto Camacho-Iñiquez, Lluís Galbany
We present a real-time stamp classifier of astronomical events for the ALeRCE (Automatic Learning for the Rapid Classification of Events) broker.
no code implementations • 15 May 2020 • Esteban Reyes, Pablo A. Estévez
In this work, we propose several enhancements to a geometric transformation based model for anomaly detection in images (GeoTranform).
1 code implementation • 15 May 2020 • Nicolás I. Tapia, Pablo A. Estévez
Recently, the Information Plane (IP) was proposed to analyze them, which is based on the information-theoretic concept of mutual information (MI).
1 code implementation • 15 May 2020 • Nicolás I. Tapia, Pablo A. Estévez
The brain electrical activity presents several short events during sleep that can be observed as distinctive micro-structures in the electroencephalogram (EEG), such as sleep spindles and K-complexes.
Ranked #1 on Spindle Detection on MASS SS2
1 code implementation • 2 Jan 2017 • Guillermo Cabrera-Vives, Ignacio Reyes, Francisco Förster, Pablo A. Estévez, Juan-Carlos Maureira
We introduce Deep-HiTS, a rotation invariant convolutional neural network (CNN) model for classifying images of transients candidates into artifacts or real sources for the High cadence Transient Survey (HiTS).
no code implementations • 24 Sep 2015 • Jorge R. Vergara, Pablo A. Estévez
In this work we present a review of the state of the art of information theoretic feature selection methods.