Abstract
Text classification is a fundamental task that is often carried out upstream of natural language processing (NLP) techniques. Therefore, this task plays an essential role in information retrieval and extraction, and has a wide range of applications in many areas. Many text classification techniques have been proposed, with promising results. However, to propose an efficient model, the particularity of the application domain also needs to be addressed to better grasp the syntactic and semantic complexity of the texts. In this paper, we proposed a classification model for medical text classification that is based on a convolutional neural network (CNN) combined with a long short term memory (LSTM) neural networks. The proposed CNN-LSTM is using word vectors computed with FastText to achieve the highest accuracy. We compared our proposed model results with other state-of-the-art models such as CNN, support vector machines, decision trees, naive Bayes, and K-nearest neighbor. The performance of all used models were evaluated in terms of accuracy, precision, recall, and F1 score. The CNN-LSTM outperforms all other models in terms of all evaluation parameters and achieved 86.34%, 90.68%, 91.72%, 90.67% accuracy, precision, recall, and F1 score, respectively.
Published Version
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