Zobrazeno 1 - 10
of 1 208
pro vyhledávání: '"A. Sykulski"'
The three cardinal, statistically consistent, families of non-parametric estimators to the power spectral density of a time series are lag-window, multitaper and Welch estimators. However, when estimating power spectral densities from a finite sample
Externí odkaz:
http://arxiv.org/abs/2410.12386
Welch's method provides an estimator of the power spectral density that is statistically consistent. This is achieved by averaging over periodograms calculated from overlapping segments of a time series. For a finite length time series, while the var
Externí odkaz:
http://arxiv.org/abs/2312.13643
Bike-sharing is a popular component of sustainable urban mobility. It requires anticipatory planning, e.g. of station locations and inventory, to balance expected demand and capacity. However, external factors such as extreme weather or glitches in p
Externí odkaz:
http://arxiv.org/abs/2204.06112
Ocean buoy data in the form of high frequency multivariate time series are routinely recorded at many locations in the world's oceans. Such data can be used to characterise the ocean wavefield, which is important for numerous socio-economic and scien
Externí odkaz:
http://arxiv.org/abs/2202.03773
A dataset of sea surface temperature (SST) estimates is generated from the temperature observations of surface drifting buoys of NOAA's Global Drifter Program. Estimates of SST at regular hourly time steps along drifter trajectories are obtained by f
Externí odkaz:
http://arxiv.org/abs/2201.08289
Many single-target regression problems require estimates of uncertainty along with the point predictions. Probabilistic regression algorithms are well-suited for these tasks. However, the options are much more limited when the prediction target is mu
Externí odkaz:
http://arxiv.org/abs/2106.03823
Autor:
Romuald Laso-Jadart, Michael O’Malley, Adam M. Sykulski, Christophe Ambroise, Mohammed-Amin Madoui
Publikováno v:
BMC Ecology and Evolution, Vol 23, Iss 1, Pp 1-15 (2023)
Abstract Background Plankton seascape genomics studies have revealed different trends from large-scale weak differentiation to microscale structures. Previous studies have underlined the influence of the environment and seascape on species differenti
Externí odkaz:
https://doaj.org/article/a96d56e06d864732b5c5c90e9e4981c9
This paper presents an automated approach for providing ranked lists of outliers in observed demand to support analysts in network revenue management. Such network revenue management, e.g. for railway itineraries, needs accurate demand forecasts. How
Externí odkaz:
http://arxiv.org/abs/2104.04157
Drifters deployed in close proximity collectively provide a unique observational data set with which to separate mesoscale and submesoscale flows. In this paper we provide a principled approach for doing so by fitting observed velocities to a local T
Externí odkaz:
http://arxiv.org/abs/2012.00789
Wind-generated waves are often treated as stochastic processes. There is particular interest in their spectral density functions, which are often expressed in some parametric form. Such spectral density functions are used as inputs when modelling str
Externí odkaz:
http://arxiv.org/abs/2008.10437