Results 1 to 10 of about 191,245 (191)

Coccolith clumped isotopes reveal modest rather than extreme northern high latitude amplification during the Miocene [PDF]

open access: yesNature Communications
Accurate predictions of the future climate response to CO2 depend on the ability of climate models to simulate past analog warmer climates, like the Miocene.
Luz María Mejía   +8 more
doaj   +2 more sources

Application of porosity logs for cyclostratigraphic analysis in the absence of gamma ray logs [PDF]

open access: yesScientific Reports
High-resolution cyclostratigraphic and sequence stratigraphic analyses are often compromised and lead to incorrect interpretations due to the unavailability or critical, proven errors in the reference Gamma-Ray (GR) and Density (RHOB) logs in hydrocarbon
Amir Alimardanian   +4 more
doaj   +2 more sources

Joint inversion of proxy system models to reconstruct paleoenvironmental time series from heterogeneous data [PDF]

open access: yesClimate of the Past, 2020
Paleoclimatic and paleoenvironmental reconstructions are fundamentally uncertain because no proxy is a direct record of a single environmental variable of interest; all proxies are indirect and sensitive to multiple forcing factors.
G. J. Bowen   +5 more
doaj   +1 more source

Evaluating the use of body mass index change as a proxy for anorexia nervosa recovery: a machine learning perspective [PDF]

open access: yesJournal of Eating Disorders
This paper critically examines the study by Brizzi et al., which applied explainable machine learning to predict short-term treatment outcomes in patients hospitalized for anorexia nervosa (AN).
Tianfei Yu   +3 more
doaj   +2 more sources

Does a proxy measure up? A framework to assess and convey proxy reliability [PDF]

open access: yesClimate of the Past, 2020
Earth scientists describe a wide range of observational measurements as “proxy measurements”. By referring to such a vast body of measurements simply as “proxy”, researchers dilute significant differences in the various ways that measurements relate to ...
F. G. Boudinot, J. Wilson
doaj   +1 more source

Patch Shortcuts: Interpretable Proxy Models Efficiently Find Black-Box Vulnerabilities [PDF]

open access: yes2021 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), 2021
An important pillar for safe machine learning (ML) is the systematic mitigation of weaknesses in neural networks to afford their deployment in critical applications. An ubiquitous class of safety risks are learned shortcuts, i.e. spurious correlations a network exploits for its decisions that have no semantic connection to the actual task.
Rosenzweig, Julia   +4 more
openaire   +2 more sources

Stability of ENSO and its tropical Pacific teleconnections over the Last Millennium [PDF]

open access: yesClimate of the Past, 2015
Determining past changes in the amplitude, frequency and teleconnections of the El Niño-Southern Oscillation (ENSO) is important for understanding its potential sensitivity to future anthropogenic climate change. Palaeo-reconstructions from proxy records
S. C. Lewis, A. N. LeGrande
doaj   +1 more source

Comparing proxy and model estimates of hydroclimate variability and change over the Common Era [PDF]

open access: yesClimate of the Past, 2017
Water availability is fundamental to societies and ecosystems, but our understanding of variations in hydroclimate (including extreme events, flooding, and decadal periods of drought) is limited because of a paucity of modern instrumental observations ...
PAGES Hydro2k Consortium
doaj   +1 more source

Interpretation of Regressions with Multiple Proxies [PDF]

open access: yesReview of Economics and Statistics, 2001
We consider the situation in which there are multiple proxies for one unobserved explanatory variable in a linear regression and provide a procedure by which the coefficient of interest can be extracted "post hoc" from a multiple regression in which all the proxies are used simultaneously.
Darren Lubotsky, Martin Wittenberg
openaire   +4 more sources

QUINE’S PROXY-FUNCTION ARGUMENT FOR THE INDETERMINACY OF REFERENCE AND FREGE’S CAESAR PROBLEM

open access: yesManuscrito, 2021
In his logical foundation of arithmetic, Frege faced the problem that the semantic interpretation of his system does not determine the reference of the abstract terms completely.
DIRK GREIMANN
doaj   +1 more source

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