Results 41 to 50 of about 34,370,538 (356)
Frontiers in Neuroscience, 2022 We review recent advances in using mathematical models of the relationship between the brain structure and function that capture features of brain dynamics. We argue the need for models that can jointly capture temporal, spatial, and spectral features of
Ashish Raj +2 more
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A direct comparison of X-ray spectral models for tori in active galactic nuclei [PDF]
, 2015 Several X-ray spectral models for tori in active galactic nuclei (AGNs) are available to constrain the properties of tori; however, the accuracy of these models has not been verified.
Yuan Liu, Xiao-Bo Li
semanticscholar +1 more source
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 Temporal Graph Neural Network for Multivariate Time-series Forecasting [PDF]
Neural Information Processing Systems, 2020 Multivariate time-series forecasting plays a crucial role in many real-world applications. It is a challenging problem as one needs to consider both intra-series temporal correlations and inter-series correlations simultaneously.
De-Fu Cao +10 more
semanticscholar +1 more source
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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Spectral Methods for Nonparametric Models
CoRR, 2017 Keywords: Spectral Methods, Indian Buffet Process, Hierarchical Dirichlet ...
Hsiao-Yu Fish Tung +3 more
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Spectral compressive sensing with model selection [PDF]
2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2014 5 pages, 2 figures, 1 table, published in ICASSP ...
Zhenqi Lu +5 more
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A Spectral Model of Turnover Reduction [PDF]
Econometrics, 2014 We give a simple explicit formula for turnover reduction when a large number of alphas are traded on the same execution platform and trades are crossed internally. We model turnover reduction via alpha correlations. Then, for a large number of alphas, turnover reduction is related to the largest eigenvalue and the corresponding eigenvector of the alpha
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Study on Spectral Interference in the Determination of Vanadium by ICP-OES
, 2020 Vanadium is an important scarce resource and strategic metal, and often coexists with a variety of complex metals in the form of secondary mineral phases in nature.
Zhang Yi +7 more
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Theory and assessment of an improved power spectral density estimator [PDF]
, 1990 This thesis is concerned with the processing of time domain signals received by a single sensor. An example of such signals is the radar return, which is used in one way or another to estimate the power spectral density a frequency representation of ...
Ali, Ali Abbas
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