Search Results for author: Santiago Mazuelas

Found 16 papers, 8 papers with code

Minimax Forward and Backward Learning of Evolving Tasks with Performance Guarantees

1 code implementation NeurIPS 2023 Verónica Álvarez, Santiago Mazuelas, Jose A. Lozano

For a sequence of classification tasks that arrive over time, it is common that tasks are evolving in the sense that consecutive tasks often have a higher similarity.

Continual Learning Incremental Learning

Efficient Learning of Minimax Risk Classifiers in High Dimensions

1 code implementation11 Jun 2023 Kartheek Bondugula, Santiago Mazuelas, Aritz Pérez

High-dimensional data is common in multiple areas, such as health care and genomics, where the number of features can be tens of thousands.

feature selection

A Semi-Supervised Learning Approach for Ranging Error Mitigation Based on UWB Waveform

no code implementations23 May 2023 Yuxiao Li, Santiago Mazuelas, Yuan Shen

Localization systems based on ultra-wide band (UWB) measurements can have unsatisfactory performance in harsh environments due to the presence of non-line-of-sight (NLOS) errors.

A Deep Learning Approach for Generating Soft Range Information from RF Data

no code implementations23 May 2023 Yuxiao Li, Santiago Mazuelas, Yuan Shen

Radio frequency (RF)-based techniques are widely adopted for indoor localization despite the challenges in extracting sufficient information from measurements.

Indoor Localization

Deep GEM-Based Network for Weakly Supervised UWB Ranging Error Mitigation

no code implementations23 May 2023 Yuxiao Li, Santiago Mazuelas, Yuan Shen

Ultra-wideband (UWB)-based techniques, while becoming mainstream approaches for high-accurate positioning, tend to be challenged by ranging bias in harsh environments.

Deep Generative Model for Simultaneous Range Error Mitigation and Environment Identification

no code implementations23 May 2023 Yuxiao Li, Santiago Mazuelas, Yuan Shen

In particular, we present a Bayesian model for the generative process of the received waveform composed by latent variables for both range-related features and environment semantics.

Variational Bayesian Framework for Advanced Image Generation with Domain-Related Variables

no code implementations23 May 2023 Yuxiao Li, Santiago Mazuelas, Yuan Shen

Deep generative models (DGMs) and their conditional counterparts provide a powerful ability for general-purpose generative modeling of data distributions.

Translation Unsupervised Image-To-Image Translation

Double-Weighting for Covariate Shift Adaptation

1 code implementation15 May 2023 José I. Segovia-Martín, Santiago Mazuelas, Anqi Liu

Supervised learning is often affected by a covariate shift in which the marginal distributions of instances (covariates $x$) of training and testing samples $\mathrm{p}_\text{tr}(x)$ and $\mathrm{p}_\text{te}(x)$ are different but the label conditionals coincide.

Generalization Bounds

Minimax Classification under Concept Drift with Multidimensional Adaptation and Performance Guarantees

1 code implementation31 May 2022 Verónica Álvarez, Santiago Mazuelas, Jose A. Lozano

The statistical characteristics of instance-label pairs often change with time in practical scenarios of supervised classification.

Minimax risk classifiers with 0-1 loss

no code implementations17 Jan 2022 Santiago Mazuelas, Mauricio Romero, Peter Grünwald

Supervised classification techniques use training samples to learn a classification rule with small expected 0-1 loss (error probability).

Classification General Classification

MRCpy: A Library for Minimax Risk Classifiers

1 code implementation4 Aug 2021 Kartheek Bondugula, Verónica Álvarez, José I. Segovia-Martín, Aritz Pérez, Santiago Mazuelas

MRCpy provides a unified interface for different variants of MRCs and follows the standards of popular Python libraries.

Probabilistic Load Forecasting Based on Adaptive Online Learning

1 code implementation30 Nov 2020 Verónica Álvarez, Santiago Mazuelas, José A. Lozano

Conventional load forecasting techniques obtain single-value load forecasts by exploiting consumption patterns of past load demand.

energy management Load Forecasting +2

Minimax Classification with 0-1 Loss and Performance Guarantees

2 code implementations NeurIPS 2020 Santiago Mazuelas, Andrea Zanoni, Aritz Perez

We also present MRCs' finite-sample generalization bounds in terms of training size and smallest minimax risk, and show their competitive classification performance w. r. t.

Classification General Classification +1

Generalized Maximum Entropy for Supervised Classification

1 code implementation10 Jul 2020 Santiago Mazuelas, Yuan Shen, Aritz Pérez

The maximum entropy principle advocates to evaluate events' probabilities using a distribution that maximizes entropy among those that satisfy certain expectations' constraints.

Classification General Classification

Supervised classification via minimax probabilistic transformations

no code implementations2 Feb 2019 Santiago Mazuelas, Andrea Zanoni, Aritz Perez

Conventional techniques for supervised classification constrain the classification rules considered and use surrogate losses for classification 0-1 loss.

Classification General Classification +1

General Supervision via Probabilistic Transformations

no code implementations24 Jan 2019 Santiago Mazuelas, Aritz Perez

Different types of training data have led to numerous schemes for supervised classification.

Classification General Classification

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