Zobrazeno 1 - 10
of 12 135
pro vyhledávání: '"A. Wilms"'
Sparse and outlier-robust Principal Component Analysis (PCA) has been a very active field of research recently. Yet, most existing methods apply PCA to a single dataset whereas multi-source data-i.e. multiple related datasets requiring joint analysis
Externí odkaz:
http://arxiv.org/abs/2407.16299
Autor:
Saeedi, Sara, Sasaki, Manami, Knies, Jonathan, Robrade, Jan, Heindl, Theresa, Zainab, Aafia, Hämmerich, Steven, Reh, Martin, Wilms, Joern
Using the data of eROSITA (extended Roentgen Survey with an Imaging Telescope Array) on board Spektrum-Roentgen-Gamma (Spektr-RG, SRG) taken during the first eROSITA all-sky survey (eRASS1), we perform the first X-ray classification and population st
Externí odkaz:
http://arxiv.org/abs/2407.12583
Reduced-rank regressions are powerful tools used to identify co-movements within economic time series. However, this task becomes challenging when we observe matrix-valued time series, where each dimension may have a different co-movement structure.
Externí odkaz:
http://arxiv.org/abs/2407.07973
Autor:
Bouchet, Tristan, Rodriguez, Jérôme, Cangemi, Floriane, Thalhammer, Philipp, Laurent, Philippe, Grinberg, Victoria, Wilms, Joern, Pottschimdt, Katja
Soft gamma-ray emission (100 keV -- 10 MeV) has previously been detected in the hard state of several microquasars. In some sources, this emission was found to be highly polarized and was suggested to be emitted at the base of the jet. Until now, no
Externí odkaz:
http://arxiv.org/abs/2407.05871
Graphical models serve as effective tools for visualizing conditional dependencies between variables. However, as the number of variables grows, interpretation becomes increasingly difficult, and estimation uncertainty increases due to the large numb
Externí odkaz:
http://arxiv.org/abs/2407.00644
Autor:
ANTARES Collaboration, Albert, A., Alves, S., André, M., Ardid, M., Ardid, S., Aubert, J. -J., Aublin, J., Baret, B., Basa, S., Becherini, Y., Belhorma, B., Bendahman, M., Benfenati, F., Bertin, V., Biagi, S., Boumaaza, J., Bouta, M., Bouwhuis, M. C., Brânzaş, H., Bruijn, R., Brunner, J., Busto, J., Caiffi, B., Calvo, D., Campion, S., Capone, A., Carenini, F., Carr, J., Carretero, V., Cartraud, T., Celli, S., Cerisy, L., Chabab, M., Moursli, R. Cherkaoui El, Chiarusi, T., Circella, M., Coelho, J. A. B., Coleiro, A., Coniglione, R., Coyle, P., Creusot, A., Díaz, A. F., De Martino, B., Distefano, C., Di Palma, I., Donzaud, C., Dornic, D., Drouhin, D., Eberl, T., Eddymaoui, A., van Eeden, T., van Eijk, D., Hedri, S. El, Khayati, N. El, Enzenhöfer, A., Fermani, P., Ferrara, G., Filippini, F., Fusco, L. A., Gagliardini, S., García, J., Oliver, C. Gatius, Gay, P., Geißelbrecht, N., Glotin, H., Gozzini, R., Ruiz, R. Gracia, Graf, K., Guidi, C., Haegel, L., van Haren, H., Heijboer, A. J., Hello, Y., Hennig, L., Hernández-Rey, J. J., Hößl, J., Huang, F., Illuminati, G., Jisse-Jung, B., de Jong, M., de Jong, P., Kadler, M., Kalekin, O., Katz, U., Kouchner, A., Kreykenbohm, I., Kulikovskiy, V., Lahmann, R., Lamoureux, M., Lazo, A., Lefèvre, D., Leonora, E., Levi, G., Stum, S. Le, Loucatos, S., Manczak, J., Marcelin, M., Margiotta, A., Marinelli, A., Martínez-Mora, J. A., Migliozzi, P., Moussa, A., Muller, R., Navas, S., Nezri, E., Fearraigh, B. Ó, Oukacha, E., Păun, A., Păvălaş, G. E., Peña-Martínez, S., Perrin-Terrin, M., Piattelli, P., Poirè, C., Popa, V., Pradier, T., Randazzo, N., Real, D., Riccobene, G., Romanov, A., Losa, A. Sánchez, Saina, A., Greus, F. Salesa, Samtleben, D. F. E., Sanguineti, M., Sapienza, P., Schüssler, F., Seneca, J., Spurio, M., Stolarczyk, Th., Taiuti, M., Tayalati, Y., Vallage, B., Vannoye, G., Van Elewyck, V., Viola, S., Vivolo, D., Wilms, J., Zavatarelli, S., Zegarelli, A., Zornoza, J. D., Zúñiga, J.
High-significance evidences of the existence of a high-energy diffuse flux of cosmic neutrinos have emerged in the last decade from several observations by the IceCube Collaboration. The ANTARES neutrino telescope took data for 15 years in the Medite
Externí odkaz:
http://arxiv.org/abs/2407.00328
Vector AutoRegressive Moving Average (VARMA) models form a powerful and general model class for analyzing dynamics among multiple time series. While VARMA models encompass the Vector AutoRegressive (VAR) models, their popularity in empirical applicat
Externí odkaz:
http://arxiv.org/abs/2406.19702
Autor:
Ballhausen, R., Thalhammer, P., Pradhan, P., Sokolova-Lapa, E., Stierhof, J., Pottschmidt, K., Wilms, J., Coley, J. B., Kretschmar, P., Fuerst, F., Becker, P., West, B., Malacaria, C., Wolff, M. T., Rothschild, R., Staubert, R.
In 2021, the high-mass X-ray binary EXO 2030+375 underwent a giant X-ray outburst, the first since 2006, that reached a peak flux of ${\sim}600\,\mathrm{mCrab}$ (3-50\,keV). The goal of this work is to study the spectral evolution over the course of
Externí odkaz:
http://arxiv.org/abs/2406.13029
Autor:
Gokus, Andrea, Böttcher, Markus, Errando, Manel, Kreter, Michael, Heßdörfer, Jonas, Eppel, Florian, Kadler, Matthias, Smith, Paul S., Benke, Petra, Gurvits, Leonid I., Kraus, Alex, Lisakov, Mikhail, McBride, Felicia, Ros, Eduardo, Rösch, Florian, Wilms, Jörn
Blazars can be detected from very large distances due to their high luminosity. However, the detection of $\gamma$-ray emission of blazars beyond $z=3$ has only been confirmed for a small number of sources. Such observations probe the growth of super
Externí odkaz:
http://arxiv.org/abs/2406.07635
Autor:
Wolf, J., Salvato, M., Belladitta, S., Arcodia, R., Ciroi, S., Di Mille, F., Sbarrato, T., Buchner, J., Hämmerich, S., Wilms, J., Collmar, W., Dwelly, T., Merloni, A., Urrutia, T., Nandra, K.
The SRG/eROSITA All-Sky Survey (eRASS) is expected to contain ~100 quasars that emitted their light when the universe was less than a billion years old, i.e. at z>5.6. By selection, these quasars populate the bright end of the AGN X-ray luminosity fu
Externí odkaz:
http://arxiv.org/abs/2406.05118