Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Deshmukh Varad"'
Publikováno v:
Journal of Space Weather and Space Climate, Vol 10, p 13 (2020)
Current operational forecasts of solar eruptions are made by human experts using a combination of qualitative shape-based classification systems and historical data about flaring frequencies. In the past decade, there has been a great deal of interes
Externí odkaz:
https://doaj.org/article/fd5210a8c4c84b97a74a51e027031cc5
Autor:
Gharooni-Fard, Golnar, Byers, Morgan, Deshmukh, Varad, Bradley, Elizabeth, Mayo, Carissa, Topaz, Chad, Peleg, Orit
A primary challenge in understanding collective behavior is characterizing the spatiotemporal dynamics of the group. We employ topological data analysis to explore the structure of honeybee aggregations that form during trophallaxis, which is the dir
Externí odkaz:
http://arxiv.org/abs/2307.09720
Publikováno v:
Physica D 446: 133674 (2023)
Reconstructing state-space dynamics from scalar data using time-delay embedding requires choosing values for the delay $\tau$ and the dimension $m$. Both parameters are critical to the success of the procedure and neither is easy to formally validate
Externí odkaz:
http://arxiv.org/abs/2211.11511
Publikováno v:
A&A 674, A159 (2023)
Recently, there has been growing interest in the use of machine-learning methods for predicting solar flares. Initial efforts along these lines employed comparatively simple models, correlating features extracted from observations of sunspot active r
Externí odkaz:
http://arxiv.org/abs/2202.08776
A hybrid two-stage machine learning architecture that addresses the problem of excessive false positives (false alarms) in solar flare prediction systems is investigated. The first stage is a convolutional neural network (CNN) model based on the VGG-
Externí odkaz:
http://arxiv.org/abs/2111.10704
Publikováno v:
Chaos 31, 123102 (2021)
Scaling regions -- intervals on a graph where the dependent variable depends linearly on the independent variable -- abound in dynamical systems, notably in calculations of invariants like the correlation dimension or a Lyapunov exponent. In these ap
Externí odkaz:
http://arxiv.org/abs/2108.14000
Publikováno v:
AAAI Conference on Artificial Intelligence, 35(17), 2021, 15293-15300
Solar flares are caused by magnetic eruptions in active regions (ARs) on the surface of the sun. These events can have significant impacts on human activity, many of which can be mitigated with enough advance warning from good forecasts. To date, mac
Externí odkaz:
http://arxiv.org/abs/2012.14405
Publikováno v:
Chaos 30, 063143 (2020)
We propose a curvature-based approach for choosing good values for the time-delay parameter $\tau$ in delay reconstructions. The idea is based on the effects of the delay on the geometry of the reconstructions. If the delay is chosen too small, the r
Externí odkaz:
http://arxiv.org/abs/2003.06509
Publikováno v:
In Physica D: Nonlinear Phenomena April 2023 446
Akademický článek
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