Results 31 to 40 of about 34,370,538 (356)
Differentiable Measures for Speech Spectral Modeling
IEEE Access, 2022 Autoregressive models for the envelope of speech power spectral densities (PSDs) are refined by the self-supervised spectral learning machine (S3LM) provided with differentiable spectral objective functions, including the Itakura-Saito divergence (ISD ...
Miguel Arjona Ramirez +3 more
doaj +1 more source
CONSTRUCTING POLYNOMIAL SPECTRAL MODELS FOR STARS [PDF]
, 2016 Stellar spectra depend on the stellar parameters and on dozens of photospheric elemental abundances. Simultaneous fitting of these ∼ 10–40 model labels to observed spectra has been deemed unfeasible because the number of ab initio spectral model grid ...
H. Rix +3 more
semanticscholar +1 more source
Journal of Financial Economics, 2021 We represent risk factors as sums of orthogonal components capturing fluctuations with cycles of different length. The representation leads to novel spectral factor models in which systematic risk is allowed—without being forced—to vary across ...
F. Bandi +3 more
semanticscholar +1 more source
Resilience of the spectral standard model [PDF]
Journal of High Energy Physics, 2012 A bstract We show that the inconsistency between the spectral Standard Model and the experimental value of the Higgs mass is resolved by the presence of a real scalar field strongly coupled to the Higgs field. This scalar field was already present in the spectral model and we
Chamseddine, Ali H., Connes, Alain
openaire +3 more sources
A spectral condition for spectral gap: fast mixing in high-temperature Ising models [PDF]
Probability theory and related fields, 2020 We prove that Ising models on the hypercube with general quadratic interactions satisfy a Poincaré inequality with respect to the natural Dirichlet form corresponding to Glauber dynamics, as soon as the operator norm of the interaction matrix is smaller ...
Ronen Eldan +2 more
semanticscholar +1 more source
Frontiers in Astronomy and Space Sciences, 2017 Spectroscopic studies of active galactic nuclei (AGN) are powerful means of probing the physical properties of the ionized gas within them. In particular, near future observational facilities, such as the James Webb Space Telescope (JWST), will allow ...
Anna Feltre +9 more
doaj +1 more source
THE IMPACT OF ACCURATE EXTINCTION MEASUREMENTS FOR X-RAY SPECTRAL MODELS [PDF]
, 2016 Interstellar extinction includes both absorption and scattering of photons from interstellar gas and dust grains, and it has the effect of altering a source's spectrum and its total observed intensity.
Randall K. Smith +2 more
semanticscholar +1 more source
Prediction of soil organic matter and clay contents by near-infrared spectroscopy - NIRS [PDF]
Ciência Rural, 2020 : Among the soil constituents, special attention is given to soil organic matter (SOM) and clay contents, since, among other aspects, they are key factors to nutrient retention and soil aggregates formation, which directly affect the crop production ...
Bruno Pedro Lazzaretti +5 more
doaj +1 more source
Deep autoregressive models with spectral attention
Pattern Recognition, 2023 Errors in Eq. 2 and Eq.
Fernando Moreno-Pino +2 more
openaire +3 more sources
Fourier Spectral Methods for Nonlocal Models [PDF]
Journal of Peridynamics and Nonlocal Modeling, 2020 Efficient and accurate spectral solvers for nonlocal models in any spatial dimension are presented. The approach we pursue is based on the Fourier multipliers of nonlocal Laplace operators introduced in a previous work. It is demonstrated that the Fourier multipliers, and the eigenvalues in particular, can be computed accurately and efficiently.
Bacim Alali, Nathan Albin
openaire +3 more sources