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- Title
News Classification for Identifying Traffic Incident Points in a Spanish-Speaking Country: A Real-World Case Study of Class Imbalance Learning.
- Authors
Rivera, Gilberto; Florencia, Rogelio; García, Vicente; Ruiz, Alejandro; Sánchez-Solís, J. Patricia
- Abstract
'El Diario de Juárez' is a local newspaper in a city of 1.5 million Spanish-speaking inhabitants that publishes texts of which citizens read them on both a website and an RSS (Really Simple Syndication) service. This research applies natural-language-processing and machine-learning algorithms to the news provided by the RSS service in order to classify them based on whether they are about a traffic incident or not, with the final intention of notifying citizens where such accidents occur. The classification process explores the bag-of-words technique with five learners (Classification and Regression Tree (CART), Naïve Bayes, kNN, Random Forest, and Support Vector Machine (SVM)) on a class-imbalanced benchmark; this challenging issue is dealt with via five sampling algorithms: synthetic minority oversampling technique (SMOTE), borderline SMOTE, adaptive synthetic sampling, random oversampling, and random undersampling. Consequently, our final classifier reaches a sensitivity of 0.86 and an area under the precision-recall curve of 0.86, which is an acceptable performance when considering the complexity of analyzing unstructured texts in Spanish.
- Subjects
ELECTRONIC newspapers; SUPPORT vector machines; REGRESSION trees; CLASSIFICATION
- Publication
Applied Sciences (2076-3417), 2020, Vol 10, Issue 18, p6253
- ISSN
2076-3417
- Publication type
Article
- DOI
10.3390/app10186253