Results 21 to 30 of about 99,794 (163)

Interpretable Machine Learning Models for PISA Results in Mathematics

open access: yesIEEE Access
The Program for International Student Assessment (PISA) 2022 provides a global framework for assessing educational performance worldwide. We addressed a principled observation of characteristics and disparities in Mathematics performance among Spanish ...
Ismael Gomez-Talal   +2 more
doaj   +1 more source

On the Uniform Computational Content of Computability Theory [PDF]

open access: yesTheory of Computing Systems, 2017
We demonstrate that the Weihrauch lattice can be used to classify the uniform computational content of computability-theoretic properties as well as the computational content of theorems in one common setting. The properties that we study include diagonal non-computability, hyperimmunity, complete consistent extensions of Peano arithmetic, 1-genericity,
Brattka, Vasco   +2 more
openaire   +3 more sources

Evaluating Manifold Learning Techniques for Dimensionality Reduction on Industrial IoT Cybersecurity Data

open access: yesIEEE Access
The Industrial Internet of Things (IIoT) generates high-dimensional traffic data that challenge conventional intrusion detection systems. This paper presents a comparative study of ten manifold learning methods evaluated across five heterogeneous IIoT ...
Ismael Gomez-Talal   +4 more
doaj   +1 more source

Networks of Uniform Splicing Processors: Computational Power and Simulation

open access: yesMathematics, 2020
We investigated the computational power of a new variant of network of splicing processors, which simplifies the general model such that filters remain associated with nodes but the input and output filters of every node coincide.
Sandra Gómez-Canaval   +4 more
doaj   +1 more source

Analytical Model for Concentration (Pressure) Impedance of a Low-Pt PEM Fuel Cell Oxygen Electrode

open access: yesMembranes, 2022
In this study, a model for concentration/pressure impedance ζ of the cathode catalyst layer of a low-Pt PEM fuel cell is developed. The model is based on transient oxygen mass transport equations through the cathode catalyst layer modeled as a single ...
Andrei Kulikovsky
doaj   +1 more source

Computational theories of object recognition

open access: yesTrends in Cognitive Sciences, 1997
This paper examines four current theoretical approaches to the representation and recognition of visual objects: structural descriptions, geometric constraints, multidimensional feature spaces and shape-space approximation. The strengths and weaknesses of the four theories are considered, with a special focus on their approach to categorization - a ...
openaire   +3 more sources

New inflationary probes of axion dark matter

open access: yesJournal of High Energy Physics, 2023
If a light axion is present during inflation and becomes part of dark matter afterwards, its quantum fluctuations contribute to dark matter isocurvature.
Xingang Chen, JiJi Fan, Lingfeng Li
doaj   +1 more source

Analytical concentration impedance of a transport layer

open access: yesResults in Chemistry, 2022
A formula for concentration (zeta-) impedance of reactant transport through a finite–length layer attached to the electrochemical electrode is derived. The static point of the Nyquist spectrum is independent of the layer transport parameters, while the ...
Andrei Kulikovsky
doaj   +1 more source

A computational theory of dispositions [PDF]

open access: yesProceedings of the 22nd annual meeting on Association for Computational Linguistics -, 1984
Summary: A disposition may be interpreted as a proposition which is preponderantly, but not necessarily always, true. In this sense, birds can fly is a disposition, as are the propositions Swedes are blond, snow is white, and slimness is attractive. An idea which underlies the theory described in this article is that a disposition may be viewed as a ...
openaire   +3 more sources

Effect of proton conductivity transients on PEM fuel cell impedance: Formation of a low–frequency inductive loop

open access: yesElectrochemistry Communications, 2022
A model for PEMFC cathode impedance is developed. The model includes transient response of catalyst layer proton conductivity to cell current density variation.
Andrei Kulikovsky
doaj   +1 more source

Home - About - Disclaimer - Privacy