Search Results for author: Fabio Porto

Found 8 papers, 3 papers with code

SoftED: Metrics for Soft Evaluation of Time Series Event Detection

1 code implementation2 Apr 2023 Rebecca Salles, Janio Lima, Rafaelli Coutinho, Esther Pacitti, Florent Masseglia, Reza Akbarinia, Chao Chen, Jonathan Garibaldi, Fabio Porto, Eduardo Ogasawara

They improved event detection evaluation by associating events and their representative detections, incorporating temporal tolerance in over 36\% of experiments compared to the usual classification metrics.

Event Detection Time Series

A Simplicity Bubble Problem in Formal-Theoretic Learning Systems

no code implementations22 Dec 2021 Felipe S. Abrahão, Hector Zenil, Fabio Porto, Michael Winter, Klaus Wehmuth, Itala M. L. D'Ottaviano

When mining large datasets in order to predict new data, limitations of the principles behind statistical machine learning pose a serious challenge not only to the Big Data deluge, but also to the traditional assumptions that data generating processes are biased toward low algorithmic complexity.

BIG-bench Machine Learning

Hyperspherical embedding for novel class classification

no code implementations5 Feb 2021 Rafael S. Pereira, Alexis Joly, Patrick Valduriez, Fabio Porto

However, this traditional approach is not useful for identifying classes unseen on the training set, known as the open set problem.

Classification Few-Shot Learning +3

Estimation of COVID-19 under-reporting in Brazilian States through SARI

1 code implementation23 Jun 2020 Balthazar Paixão, Lais Baroni, Rebecca Salles, Luciana Escobar, Carlos de Sousa, Marcel Pedroso, Raphael Saldanha, Rafaelli Coutinho, Fabio Porto, Eduardo Ogasawara

Therefore, the objective of this work is to estimate the under-reporting of cases and deaths of COVID-19 in Brazilian states using data from the Infogripe on notification of Severe Acute Respiratory Infection (SARI).

Applications Computers and Society

DJEnsemble: On the Selection of a Disjoint Ensemble of Deep Learning Black-Box Spatio-Temporal Models

no code implementations22 May 2020 Yania Molina Souto, Rafael Pereira, Rocío Zorrilla, Anderson Chaves, Brian Tsan, Florin Rusu, Eduardo Ogasawara, Artur Ziviani, Fabio Porto

In the online part, we compute a DJEnsemble plan which minimizes a multivariate cost function based on estimates for the prediction error and the execution cost -- producing a model spatial allocation matrix -- and run the optimal ensemble plan.

STConvS2S: Spatiotemporal Convolutional Sequence to Sequence Network for Weather Forecasting

1 code implementation30 Nov 2019 Rafaela Castro, Yania M. Souto, Eduardo Ogasawara, Fabio Porto, Eduardo Bezerra

Applying machine learning models to meteorological data brings many opportunities to the Geosciences field, such as predicting future weather conditions more accurately.

Weather Forecasting

Parallel Computation of PDFs on Big Spatial Data Using Spark

no code implementations8 May 2018 Ji Liu, Noel Moreno Lemus, Esther Pacitti, Fabio Porto, Patrick Valduriez

We consider big spatial data, which is typically produced in scientific areas such as geological or seismic interpretation.

Seismic Interpretation

A note on the complexity of the causal ordering problem

no code implementations24 Aug 2015 Bernardo Gonçalves, Fabio Porto

In this note we provide a concise report on the complexity of the causal ordering problem, originally introduced by Simon to reason about causal dependencies implicit in systems of mathematical equations.

Management

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