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Helen Costa

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2020 – today

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2021
[j3]
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Helen Costa, Fernando E. B. Otero, Luiz H. C. Merschmann, Marcone J. F. Souza:
A Novel Hybrid Feature Selection Algorithm for Hierarchical Classification. IEEE Access 9: 127278-127292 (2021)

2010 – 2019

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2018
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Helen Costa, Leandro Galvão, Luiz H. C. Merschmann, Marcone J. F. Souza:
A VNS algorithm for feature selection in hierarchical classification context. Electron. Notes Discret. Math. 66: 79-86 (2018)
2016
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Pollyanna Gonçalves, Daniel Hasan Dalip, Helen Costa, Marcos André Gonçalves, Fabrício Benevenuto:
On the combination of "off-the-shelf" sentiment analysis methods. SAC 2016: 1158-1165
2014
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Helen Costa, Luiz Henrique de Campos Merschmann, Fabrício Barth, Fabrício Benevenuto:
Pollution, bad-mouthing, and local marketing: The underground of location-based social networks. Inf. Sci. 279: 123-137 (2014)
2013
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Helen Costa, Fabrício Benevenuto, Luiz Henrique de Campos Merschmann:
Detecting tip spam in location-based social networks. SAC 2013: 724-729

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