Decentralized online learning with kernels

A Koppel, S Paternain, C Richard… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
We consider multiagent stochastic optimization problems over reproducing kernel Hilbert
spaces. In this setting, a network of interconnected agents aims to learn decision functions …

Parsimonious online learning with kernels via sparse projections in function space

A Koppel, G Warnell, E Stump, A Ribeiro - Journal of Machine Learning …, 2019 - jmlr.org
Despite their attractiveness, popular perception is that techniques for nonparametric function
approximation do not scale to streaming data due to an intractable growth in the amount of …

Parsimonious online learning with kernels via sparse projections in function space

A Koppel, G Warnell, E Stump… - 2017 IEEE International …, 2017 - ieeexplore.ieee.org
We consider stochastic nonparametric regression problems in a reproducing kernel Hilbert
space (RKHS), an extension of expected risk minimization to nonlinear function estimation …

A quadratic loss multi-class SVM for which a radius–margin bound applies

Y Guermeur, E Monfrini - Informatica, 2011 - content.iospress.com
To set the values of the hyperparameters of a support vector machine (SVM), the method of
choice is cross-validation. Several upper bounds on the leave-one-out error of the pattern …

[HTML][HTML] Machine learning identification of Saline-Alkali-Tolerant Japonica rice varieties based on Raman spectroscopy and Python visual analysis

R Liu, F Tan, Y Wang, B Ma, M Yuan, L Wang, X Zhao - Agriculture, 2022 - mdpi.com
The core of saline-alkali land improvement is planting suitable plants. Planting rice in saline-
alkali land can not only effectively improve saline-alkali soil, but also increase grain yield …

Projected stochastic primal-dual method for constrained online learning with kernels

A Koppel, K Zhang, H Zhu… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
We consider the problem of stochastic optimization with nonlinear constraints, where the
decision variable is not vector-valued but instead a function belonging to a reproducing …

Nonparametric stochastic compositional gradient descent for q-learning in continuous markov decision problems

E Tolstaya, A Koppel, E Stump… - 2018 Annual American …, 2018 - ieeexplore.ieee.org
We consider Markov Decision Problems defined over continuous state and action spaces,
where an autonomous agent seeks to learn a map from its states to actions so as to …

Policy evaluation in continuous MDPs with efficient kernelized gradient temporal difference

A Koppel, G Warnell, E Stump, P Stone… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
We consider policy evaluation in infinite-horizon discounted Markov decision problems with
continuous compact state and action spaces. We reformulate this task as a compositional …

An Online Two-Stage Classification Based on Projections

A Song, Y Wang, S Luan - Circuits, Systems, and Signal Processing, 2024 - Springer
Kernel-based online classification algorithms, such as the Perceptron, NORMA, and passive-
aggressive, are renowned for their computational efficiency but have been criticized for slow …

On submodular set cover problems for near-optimal online kernel basis selection

H Pradhan, A Koppel, K Rajawat - ICASSP 2022-2022 IEEE …, 2022 - ieeexplore.ieee.org
Non-parametric function approximators provide a principled way to fit nonlinear statistical
models while affording formal performance guarantees. However, their complexity …