Results 11 to 20 of about 324,518 (313)
CoRR, 2023 This paper studies sequence modeling for prediction tasks with long range dependencies. We propose a new formulation for state space models (SSMs) based on learning linear dynamical systems with the spectral filtering algorithm (Hazan et al. (2017)).
Naman Agarwal +3 more
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Spectral form factor in sparse SYK models
Journal of High Energy Physics, 2022 We investigate the spectral form factor of the sparse Sachdev-Ye-Kitaev model. We use numerical methods to establish that at intermediate times the connected part of the spectral form factor is the dominant one.
Elena Cáceres +2 more
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Spectral curves and W-representations of matrix models
Journal of High Energy Physics, 2023 We explain how the spectral curve can be extracted from the W $$ \mathcal{W} $$ -representation of a matrix model. It emerges from the part of the W $$ \mathcal{W} $$ -operator, which is linear in time-variables.
A. Mironov, A. Morozov
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Resilience of the spectral standard model [PDF]
Journal of High Energy Physics, 2012 Abstract 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 wrongly neglected it in our previous computations. It was
Chamseddine, Ali H., Connes, Alain
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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
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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
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Singular-spectral climate models [PDF]
E3S Web of ConferencesIn this paper, the singular spectrum analysis method is used to construct data models for the Onega Lake basin: time series of air temperature, precipitation, and runoff of the Shuya, Suna, and Vodla rivers.
Belashev Boris
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Spectral detection in the censored block model [PDF]
2015 IEEE International Symposium on Information Theory (ISIT), 2015 We consider the problem of partially recovering hidden binary variables from the observation of (few) censored edge weights, a problem with applications in community detection, correlation clustering and synchronization. We describe two spectral algorithms for this task based on the non-backtracking and the Bethe Hessian operators. These algorithms are
Saade, Alaa +3 more
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Heliyon, 2022 To extract blue roofs (BRs) from remote sensing images quickly, first, this study used WorldView-2 and WorldView-3 as the data sources and created a new BR spectral area model (BRSAM) using the polygon area difference between the spectral curves of BRs ...
Huaipeng Liu, Xiaoqing Zuo
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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
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