Zobrazeno 1 - 10
of 441
pro vyhledávání: '"FRITZ, TOBIAS"'
Autor:
Fritz, Tobias
It is an important feature of our existing physical theories that observables generate one-parameter groups of transformations. In classical Hamiltonian mechanics and quantum mechanics, this is due to the fact that the observables form a Lie algebra,
Externí odkaz:
http://arxiv.org/abs/2403.14458
Autor:
Fritz, Tobias
Publikováno v:
J. Geom. Phys. 206, 105327 (2024)
It is often noted that many of the basic concepts of differential geometry, such as the definition of connection, are purely algebraic in nature. Here, we review and extend existing work on fully algebraic formulations of differential geometry which
Externí odkaz:
http://arxiv.org/abs/2403.06548
Autor:
Liventsev, Vadim, Fritz, Tobias
Reinforcement Learning in Healthcare is typically concerned with narrow self-contained tasks such as sepsis prediction or anesthesia control. However, previous research has demonstrated the potential of generalist models (the prime example being Larg
Externí odkaz:
http://arxiv.org/abs/2402.17501
Autor:
Weisz, Daniel R., Dolphin, Andrew E., Savino, Alessandro, McQuinn, Kristen B. W., Newman, Max J. B., Williams, Benjamin F., Kallivayalil, Nitya, Anderson, Jay, Boyer, Martha L., Correnti, Matteo, Geha, Marla C., Sandstrom, Karin M., Cole, Andrew A., Warfield, Jack T., Skillman, Evan D., Cohen, Roger E., Beaton, Rachael, Bressan, Alessandro, Bolatto, Alberto, Boylan-Kolchin, Michael, Brooks, Alyson M., Bullock, James S., Conroy, Charlie, Cooper, Michael C., Dalcanton, Julianne J., Dotter, Aaron L., Fritz, Tobias K., Garling, Christopher T., Gennaro, Mario, Gilbert, Karoline M., Girardi, Leo, Johnson, Benjamin D., Johnson, L. Clifton, Kalirai, Jason, Kirby, Evan N., Lang, Dustin, Marigo, Paola, Richstein, Hannah, Schlafly, Edward F., Tollerud, Erik J., Wetzel, Andrew
We present NIRCam and NIRISS modules for DOLPHOT, a widely-used crowded field stellar photometry package. We describe details of the modules including pixel masking, astrometric alignment, star finding, photometry, catalog creation, and artificial st
Externí odkaz:
http://arxiv.org/abs/2402.03504
We use Markov categories to develop generalizations of the theory of Markov chains and hidden Markov models in an abstract setting. This comprises characterizations of hidden Markov models in terms of local and global conditional independences as wel
Externí odkaz:
http://arxiv.org/abs/2401.14669
Autor:
Fritz, Tobias, Lorenzin, Antonio
Markov categories have recently emerged as a powerful high-level framework for probability theory and theoretical statistics. Here we study a quantum version of this concept, called involutive Markov categories. First, we show that these are equivale
Externí odkaz:
http://arxiv.org/abs/2312.09666
Markov categories have recently turned out to be a powerful high-level framework for probability and statistics. They accommodate purely categorical definitions of notions like conditional probability and almost sure equality, as well as proofs of fu
Externí odkaz:
http://arxiv.org/abs/2308.00651
Publikováno v:
10th Conference on Algebra and Coalgebra in Computer Science (CALCO 2023), 16:1--16:17
Introduced in the 1990s in the context of the algebraic approach to graph rewriting, gs-monoidal categories are symmetric monoidal categories where each object is equipped with the structure of a commutative comonoid. They arise for example as Kleisl
Externí odkaz:
http://arxiv.org/abs/2303.14049
Publikováno v:
IEEE Transactions on Information Theory 70(5), 3118-3144 (2024)
One tuple of probability vectors is more informative than another tuple when there exists a single stochastic matrix transforming the probability vectors of the first tuple into the probability vectors of the other. This is called matrix majorization
Externí odkaz:
http://arxiv.org/abs/2301.07353
Autor:
Weisz, Daniel R., McQuinn, Kristen B. W., Savino, Alessandro, Kallivayalil, Nitya, Anderson, Jay, Boyer, Martha L., Correnti, Matteo, Geha, Marla C., Dolphin, Andrew E., Sandstrom, Karin M., Cole, Andrew A., Williams, Benjamin F., Skillman, Evan D., Cohen, Roger E., Newman, Max J. B., Beaton, Rachael, Bressan, Alessandro, Bolatto, Alberto, Boylan-Kolchin, Michael, Brooks, Alyson M., Bullock, James S., Conroy, Charlie, Cooper, M. C., Dalcanton, Julianne J., Dotter, Aaron L., Fritz, Tobias K., Garling, Chris, Gennaro, Mario, Gilbert, Karoline M., Girardi, Leo, Johnson, Benjamin D., Johnson, L. Clifton, Kalirai, Jason, Kirby, Evan N., Lang, Dustin, Marigo, Paola, Richstein, Hannah, Schlafly, Edward F., Schmidt, Judy, Tollerud, Erik J., Warfield, Jack T., Wetzel, Andrew
We present the JWST Resolved Stellar Populations Early Release Science (ERS) science program. We obtained 27.5 hours of NIRCam and NIRISS imaging of three targets in the Local Group (Milky Way globular cluster M92, ultra-faint dwarf galaxy Draco II,
Externí odkaz:
http://arxiv.org/abs/2301.04659