Results 1 to 10 of about 205,970 (321)
Learning to Optimize under Non-Stationarity [PDF]
International Conference on Artificial Intelligence and Statistics, 2018 We introduce algorithms that achieve state-of-the-art \emph{dynamic regret} bounds for non-stationary linear stochastic bandit setting. It captures natural applications such as dynamic pricing and ads allocation in a changing environment. We show how the
Wang Chi Cheung +2 more
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TIME SERIES TRENDS OF STREAMFLOW AND RAINFALL IN THE SANTO ANTÔNIO RIVER BASIN, BRAZIL [PDF]
Engenharia Agrícola, 2021 Detecting trends in streamflow and rainfall series can have great significance for proper water resource management. Thus, the objective of this study was to analyze the trends of historical streamflow and rainfall series using nonparametric statistical ...
Fernanda L. V. Ferreira +4 more
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Non-stationary Transformers: Rethinking the Stationarity in Time Series Forecasting
arXiv.org, 2022 Transformers have shown great power in time series forecasting due to their global-range modeling ability. However, their performance can degenerate terribly on non-stationary real-world data in which the joint distribution changes over time.
Yong Liu +3 more
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Cogent Economics & Finance, 2023 This study offers a novel examination of the mean-reversion properties of the current account balances, expressed as a percentage of GDP, for the Asian-5 economies: Indonesia, Korea, Malaysia, the Philippines, and Thailand.
Jamal Husein, S. Murat Kara, Chuck Pier
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An Overview of Kriging and Cokriging Predictors for Functional Random Fields
Mathematics, 2023 This article presents an overview of methodologies for spatial prediction of functional data, focusing on both stationary and non-stationary conditions.
Ramón Giraldo +2 more
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Non-stationarity and dissipative time crystals: spectral properties and finite-size effects [PDF]
New Journal of Physics, 2020 We discuss the emergence of non-stationarity in open quantum many-body systems. This leads us to the definition of dissipative time crystals which display experimentally observable, persistent, time-periodic oscillations induced by noisy contact with an ...
Cameron Booker, B. Buča, D. Jaksch
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Economies, 2023 The Portuguese First Republic (1910–1926) was marked by significant instability at the most diverse levels. With a special focus on the financial dimension of this period, the objective of this paper is to test the sustainability of the Portuguese fiscal
Ricardo Ferraz
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Memory in Memory: A Predictive Neural Network for Learning Higher-Order Non-Stationarity From Spatiotemporal Dynamics [PDF]
Computer Vision and Pattern Recognition, 2018 Natural spatiotemporal processes can be highly non-stationary in many ways, e.g. the low-level non-stationarity such as spatial correlations or temporal dependencies of local pixel values; and the high-level variations such as the accumulation ...
Yunbo Wang +5 more
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Streamflow stationarity in a changing world
, 2021 Whether river flows remain stationary is of great concern to hydrologists, water engineers, and society in general, yet is subject to substantial debate.
Yuting Yang +7 more
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Research on Causality Between System Risk and the Indicators of Development of the Real Sector of the Economy in Ukraine [PDF]
Bìznes Inform, 2020 The stable functioning of the national financial system creates objective conditions for increasing the market capitalization of economic entities, increasing the inflow of foreign investment, improving the business climate in the country, as well as ...
Bozhenko Viktoriia V. +1 more
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