Search Results for author: André C. P. L. F. de Carvalho

Found 9 papers, 2 papers with code

ProtoAL: Interpretable Deep Active Learning with prototypes for medical imaging

no code implementations6 Apr 2024 Iury B. de A. Santos, André C. P. L. F. de Carvalho

This approach aims to address both challenges by focusing on the medical imaging context and utilizing an inherently interpretable model based on prototypes.

Active Learning

Forecasting Financial Market Structure from Network Features using Machine Learning

no code implementations22 Oct 2021 Douglas Castilho, Tharsis T. P. Souza, Soong Moon Kang, João Gama, André C. P. L. F. de Carvalho

For such, market structure is modeled as a dynamic asset network by quantifying time-dependent co-movement of asset price returns across company constituents of major global market indices.

BIG-bench Machine Learning Management

A Preliminary Study on Hyperparameter Configuration for Human Activity Recognition

no code implementations25 Oct 2018 Kemilly Dearo Garcia, Tiago Carvalho, João Mendes-Moreira, João M. P. Cardoso, André C. P. L. F. de Carvalho

In this paper, we present a semi-supervised classifier and a study regarding the influence of hyperparameter configuration in classification accuracy, depending on the user and the activities performed by each user.

Classification General Classification +1

Characterizing classification datasets: a study of meta-features for meta-learning

2 code implementations30 Aug 2018 Adriano Rivolli, Luís P. F. Garcia, Carlos Soares, Joaquin Vanschoren, André C. P. L. F. de Carvalho

These characterizations, also called meta-features, describe properties of the data which are predictive for the performance of machine learning algorithms trained on them.

BIG-bench Machine Learning General Classification +1

Algorithm Selection for Collaborative Filtering: the influence of graph metafeatures and multicriteria metatargets

3 code implementations23 Jul 2018 Tiago Cunha, Carlos Soares, André C. P. L. F. de Carvalho

However, the results have shown that the feature selection procedure used to create the comprehensive metafeatures is is not effective, since there is no gain in predictive performance.

Collaborative Filtering feature selection

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