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Artículo
Exploiting the Symmetry of Integral Transforms for Featuring Anuran Calls
(MDPI, 2019)
The application of machine learning techniques to sound signals requires the previous characterization of said signals. In many cases, their description is made using cepstral coefficients that represent the sound spectra. ...
Artículo
The impact of class imbalance in classification performance metrics based on the binary confusion matrix
(Elsevier Science, 2019)
A major issue in the classification of class imbalanced datasets involves the determination of the most suitable performance metrics to be used. In previous work using several examples, it has been shown that imbalance can ...
Artículo
Temporally-aware algorithms for the classification of anuran sounds
(PeerJ, 2018)
Several authors have shown that the sounds of anurans can be used as an indicator of climate change. Hence, the recording, storage and further processing of a huge number of anuran sounds, distributed over time and space, ...
Artículo
Exploring Symmetry of Binary Classification Performance Metrics
(MDPI, 2019)
Selecting the proper performance metric constitutes a key issue for most classification problems in the field of machine learning. Although the specialized literature has addressed several topics regarding these metrics, ...
Artículo
Improving classification algorithms by considering score series in wireless acoustic sensor networks
(MDPI, 2018)
The reduction in size, power consumption and price of many sensor devices has enabled the deployment of many sensor networks that can be used to monitor and control several aspects of various habitats. More specifically, ...
Artículo
Optimal Representation of Anuran Call Spectrum in Environmental Monitoring Systems Using Wireless Sensor Networks
(MDPI, 2018)
The analysis and classification of the sounds produced by certain animal species, notably anurans, have revealed these amphibians to be a potentially strong indicator of temperature fluctuations and therefore of the existence ...
Artículo
Evaluation of the Processing Times in Anuran Sound Classification
(Hindawi Publishing Corporation: Wiley Hindawi Partnership, 2017-07)
Nowadays, sound classification applications are becoming more common in the Wireless Acoustic Sensor Networks (WASN) scope. However, these architectures require special considerations, like looking for abalance between ...
Artículo
Visualizing Classification Results: Confusion Star and Confusion Gear
(IEEE Computer Society, 2021)
Recent developments in machine learning applications are deeply concerned with the poor interpretability of most of these techniques. To gain some insights in the process of designing data-based models it is common to ...