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Transfer Learning with Kernel Methods [PDF]

open access: yesNature Communications, 2023
Transfer learning refers to the process of adapting a model trained on a source task to a target task. While kernel methods are conceptually and computationally simple models that are competitive on a variety of tasks, it has been unclear how to develop ...
Adityanarayanan Radhakrishnan   +3 more
doaj   +2 more sources

An Operator Analysis on Stochastic Differential Equation (SDE)-Based Diffusion Generative Models [PDF]

open access: yesEntropy
Score-based generative models, grounded in stochastic differential equations (SDEs), excel in producing high-quality data but suffer from slow sampling due to the extensive nonlinear computations required for iterative score function evaluations.
Yunpei Wu, Yoshinobu Kawahara
doaj   +2 more sources

Kernel-Based Independence Tests for Causal Structure Learning on Functional Data

open access: yesEntropy, 2023
Measurements of systems taken along a continuous functional dimension, such as time or space, are ubiquitous in many fields, from the physical and biological sciences to economics and engineering.
Felix Laumann   +4 more
doaj   +1 more source

Kernel Geometric Mean Metric Learning

open access: yesApplied Sciences, 2023
Geometric mean metric learning (GMML) algorithm is a novel metric learning approach proposed recently. It has many advantages such as unconstrained convex objective function, closed form solution, faster computational speed, and interpretability over ...
Zixin Feng   +4 more
doaj   +1 more source

A Big Data Approach to Customer Relationship Management Strategy in Hospitality Using Multiple Correspondence Domain Description

open access: yesApplied Sciences, 2020
COVID-19 has hit the hotel sector in a hitherto unknown way. This situation is producing a fundamental change in client behavior that makes crucial an adequate knowledge of their profile to overcome an uncertain environment.
Lydia González-Serrano   +4 more
doaj   +1 more source

Data-Driven Supervised Learning for Life Science Data

open access: yesFrontiers in Applied Mathematics and Statistics, 2020
Life science data are often encoded in a non-standard way by means of alpha-numeric sequences, graph representations, numerical vectors of variable length, or other formats. Domain-specific or data-driven similarity measures like alignment functions have
Maximilian Münch   +7 more
doaj   +1 more source

Sparse Sliding-Window Kernel Recursive Least-Squares Channel Prediction for Fast Time-Varying MIMO Systems

open access: yesSensors, 2022
Accurate channel state information (CSI) is important for MIMO systems, especially in a high-speed scenario, fast time-varying CSI tends to be out of date, and a change in CSI shows complex nonlinearities.
Xingxing Ai   +3 more
doaj   +1 more source

Efficient Kernel Cook's Distance for Remote Sensing Anomalous Change Detection

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Detecting anomalous changes in remote sensing images is a challenging problem, where many approaches and techniques have been presented so far. We rely on the standard field of multivariate statistics of diagnostic measures, which are concerned about the
Jose Antonio Padron-Hidalgo   +4 more
doaj   +1 more source

DEMANDE: Density Matrix Neural Density Estimation

open access: yesIEEE Access, 2023
Density estimation is a fundamental task in statistics and machine learning that aims to estimate, from a set of samples, the probability density function of the distribution that generated them.
Joseph A. Gallego-Mejia   +1 more
doaj   +1 more source

Kernel-Based Phase Transfer Entropy with Enhanced Feature Relevance Analysis for Brain Computer Interfaces

open access: yesApplied Sciences, 2021
Neural oscillations are present in the brain at different spatial and temporal scales, and they are linked to several cognitive functions. Furthermore, the information carried by their phases is fundamental for the coordination of anatomically ...
Iván De La Pava Panche   +5 more
doaj   +1 more source

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