Zobrazeno 1 - 10
of 1 843
pro vyhledávání: '"Lumbreras, Á"'
Autor:
Lumbreras-Calle, A., Fernández-Ontiveros, J. A., Infante-Sainz, R., Akhlaghi, M., Montoro-Molina, B., Pérez-Díaz, B., del Pino, A., Vives-Arias, H., Hernán-Caballero, A., López-Sanjuan, C., Martín-Guerrero, M. A., Eskandarlou, S., Ederoclite, A.
A large, faint nebula was unexpectedly discovered near M31 using narrowband [O III] images. Its apparent size and the lack of a clear counterpart at other wavelengths make it unique and challenging to explain. We aim to determine whether the nebula i
Externí odkaz:
http://arxiv.org/abs/2412.08327
Autor:
Milani, Alessandra Maciel Paz, Starr, Arty, Hill, Samantha, Curtis, Callum, Anderson, Norman, Moreno-Lumbreras, David, Storey, Margaret-Anne
With security threats increasing in frequency and severity, it is critical that we consider the important role of threat hunters. These highly-trained security professionals learn to see, identify, and intercept security threats. Many recent works an
Externí odkaz:
http://arxiv.org/abs/2408.04348
We initiate the study of quantum state tomography with minimal regret. A learner has sequential oracle access to an unknown pure quantum state, and in each round selects a pure probe state. Regret is incurred if the unknown state is measured orthogon
Externí odkaz:
http://arxiv.org/abs/2406.18370
Autor:
del Pino, A., López-Sanjuan, C., Hernán-Caballero, A., Domínguez-Sánchez, H., von Marttens, R., Fernández-Ontiveros, J. A., Coelho, P. R. T., Lumbreras-Calle, A., Vega-Ferrero, J., Jimenez-Esteban, F., Cruz, P., Marra, V., Quartin, M., Galarza, C. A., Angulo, R. E., Cenarro, A. J., Cristóbal-Hornillos, D., Dupke, R. A., Ederoclite, A., Hernández-Monteagudo, C., Marín-Franch, A., Moles, M., Sodré Jr., L., Varela, J., Ramió, H. Vázquez
Publikováno v:
A&A 691, A221 (2024)
With its 12 optical filters, the Javalambre-Photometric Local Universe Survey (J-PLUS) provides an unprecedented multicolor view of the local Universe. The third data release (DR3) covers 3,192 deg$^2$ and contains 47.4 million objects. However, the
Externí odkaz:
http://arxiv.org/abs/2404.16567
Autor:
Lumbreras, Josep, Tomamichel, Marco
We study a noise model for linear stochastic bandits for which the subgaussian noise parameter vanishes linearly as we select actions on the unit sphere closer and closer to the unknown vector. We introduce an algorithm for this problem that exhibits
Externí odkaz:
http://arxiv.org/abs/2402.12042
Autor:
Bronnec, Florian Le, Duong, Song, Ravaut, Mathieu, Allauzen, Alexandre, Chen, Nancy F., Guigue, Vincent, Lumbreras, Alberto, Soulier, Laure, Gallinari, Patrick
State-space models are a low-complexity alternative to transformers for encoding long sequences and capturing long-term dependencies. We propose LOCOST: an encoder-decoder architecture based on state-space models for conditional text generation with
Externí odkaz:
http://arxiv.org/abs/2401.17919
We show that marginals of blocks of $t$ systems of any finitely correlated translation invariant state on a chain can be learned, in trace distance, with $O(t^2)$ copies -- with an explicit dependence on local dimension, memory dimension and spectral
Externí odkaz:
http://arxiv.org/abs/2312.07516
Autor:
Hernán-Caballero, A., Akhlaghi, M., López-Sanjuan, C., Vázquez-Ramió, H., Laur, J., Varela, J., Civera, T., Muniesa, D., Finoguenov, A., Fernández-Ontiveros, J. A., Domínguez-Sánchez, H., Chaves-Montero, J., Fernández-Soto, A., Lumbreras-Calle, A., Díaz-García, L. A., del Pino, A., Delgado, R. M. González, Hernández-Monteagudo, C., Coelho, P., Jiménez-Teja, Y., Lopes, P. A. A., Marra, V., Tempel, E., Vílchez, J. M., Abramo, R., Alcaniz, J., Benítez, N., Bonoli, S., Carneiro, S., Cenarro, J., Cristóbal-Hornillos, D., Dupke, R., Ederoclite, A., Marín-Franch, A., de Oliveira, C. Mendes, Moles, M., Sodré Jr., L., Taylor, K.
Publikováno v:
A&A 684, A61 (2024)
We present a new method for obtaining photometric redshifts (photo-z) for sources observed by multiple photometric surveys using a combination (conflation) of the redshift probability distributions (PDZs) obtained independently from each survey. The
Externí odkaz:
http://arxiv.org/abs/2311.04220
This paper adds to the efforts of evolutionary ethics to naturalize morality by providing specific insights derived from a computational ethics view. We propose a stylized model of human decision-making, which is based on Reinforcement Learning, one
Externí odkaz:
http://arxiv.org/abs/2307.11119
Autor:
Mérida, Rosa M., Pérez-González, Pablo G., Sánchez-Blázquez, Patricia, García-Argumánez, Ángela, Annunziatella, Marianna, Costantin, Luca, Lumbreras-Calle, Alejandro, Alcalde-Pampliega, Belén, Barro, Guillermo, Espino-Briones, Néstor, Koekemoer, Anton M.
We investigate the star formation main sequence (MS) (SFR-M$_{\star}$) down to 10$^{8-9}\mathrm{M}_\odot$ using a sample of 34,061 newly-discovered ultra-faint ($27\lesssim i \lesssim 30$ mag) galaxies at $1
Externí odkaz:
http://arxiv.org/abs/2303.16234