Short text classification with machine learning in the social sciences: The case of climate change on Twitter

Fig 2. Illustration of a support vector machine classifier. A hyperplane is fitted to separate the two classes and maximize the margin. Linear kernel (a) is used for the case of linearly separable classes, while radial basis function kernel (b) is used for the case with class overlap. https://doi.org/10.1371/journal.pone.0290762.g002 PLOS ONE Short text classification with machine learning in the social sciences PLOS ONE | https://doi.org/10.1371/journal.pone.0290762 September 29, 2023 8 / 26