Results 81 to 90 of about 3,168 (213)

Modular Jump Gaussian Processes

open access: yesData Science in Science
Gaussian processes (GPs) furnish accurate nonlinear predictions with well-calibrated uncertainty. However, the typical GP setup has a built-in stationarity assumption, making it ill-suited for modeling data from processes with sudden changes, or “jumps ...
Anna R. Flowers   +4 more
doaj   +1 more source

Climate Attribution in Fishery Stock Assessment: Case Studies From the Northeast U.S. Groundfish Stocks

open access: yesFish and Fisheries, EarlyView.
ABSTRACT Climate change poses an unprecedented risk to fisheries ecosystems and economies globally. Ocean warming has led to observed geographic shifts and changes in the productivity of fish stocks. Due to the rapid pace of change in many of the world's oceans, there is a critical need to develop and apply scientific knowledge and tools that can help ...
Lisa A. Kerr   +8 more
wiley   +1 more source

A Fishery‐Dependent CPUE‐Based Proxy Index for Juvenile Japanese Anchovy (Engraulis japonicus) Recruitment Variability in Southeastern Korea: Associations With Lagged Climate‐Ocean Conditions

open access: yesFisheries Oceanography, EarlyView.
ABSTRACT We developed and evaluated a fishery‐dependent catch‐per‐unit‐effort (CPUE)‐based proxy index for juvenile Japanese anchovy (Engraulis japonicus) recruitment‐related variability in the southeastern coastal waters of Korea. The proxy was constructed from bimonthly CPUE of the smallest juvenile size class (20–40 mm) in the anchovy drag‐net ...
Jin Yeong Kim   +5 more
wiley   +1 more source

Missing Values in Time Series: A Brief Review and a New Versatile Imputation Method

open access: yesInternational Statistical Review, EarlyView.
Summary Missing data can significantly hamper standard time series analysis, yet they occur frequently in applications. In this paper, we briefly review some available methods for handling missing values and introduce the temporal Wasserstein imputation, a novel method for imputing missing data in time series.
Shuo‐Chieh Huang   +2 more
wiley   +1 more source

The influence of non-stationarity in extreme hydrological events on flood frequency estimation

open access: yesJournal of Hydrology and Hydromechanics, 2016
Substantial evidence shows that the frequency of hydrological extremes has been changing and is likely to continue to change in the near future. Non-stationary models for flood frequency analyses are one method of accounting for these changes in ...
Šraj Mojca   +3 more
doaj   +1 more source

Small area estimation under spatial nonstationarity

open access: yesComputational Statistics & Data Analysis, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hukum Chandra   +3 more
openaire   +6 more sources

Contractual Minimum Wages and Collective Bargaining. Italian Evidence From 40 Years of Data

open access: yesIndustrial Relations: A Journal of Economy and Society, EarlyView.
ABSTRACT This study documents the evolution of minimum wages bargained in Italian collective contracts over a 40‐year period (1983–2023). Real minimum wages have grown over the last three decades, particularly among high‐skilled occupations, but the 2022–2023 inflation crisis eroded this growth.
Bernardo Fanfani
wiley   +1 more source

FX Interventions and Capital‐Constrained Banks: Evidence from USD/ILS Spot, Forward, and Option Markets

open access: yesJournal of Money, Credit and Banking, EarlyView.
Abstract Using confidential daily data, we examine the Bank of Israel's foreign exchange interventions from 2013 to 2019. We find that a 1 billion U.S. dollars (USD) purchase leads to a 0.82% depreciation of the Israeli Shekel (ILS)–a strong effect compared to other studies.
MARKUS HERTRICH, DANIEL NATHAN
wiley   +1 more source

EU ETS Market Expectations and Rational Bubbles

open access: yesJournal of Money, Credit and Banking, EarlyView.
Abstract The European Union Emissions Trading System (EU ETS) experienced sharp allowance price increases from 2018 onward, prompting claims that rational bubbles were driving the surge. We reassess this hypothesis using expectations based on futures prices.
CHRISTOPH WEGENER   +2 more
wiley   +1 more source

Modeling forest bird distributions with bioclimatic, forest composition, and GEDI fusion forest structure variables: the importance of ecoregional perspectives

open access: yesEnvironmental Research: Ecology
Understanding how species–habitat relationships vary across large spatial extents is critical for conservation and management. Woodpeckers are a wide-ranging guild whose roles as keystone species often make them a focus of management activities.
Lisa H Elliott   +4 more
doaj   +1 more source

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