Feature Extraction of Text for Deep Learning Algorithms: Application on Fake News Detection
This addresses fake news detection for media and fact-checking applications, but it is incremental as it builds on existing feature extraction methods.
The paper tackled fake news detection by using alphabet frequencies from text as features for deep learning classifiers, achieving 85% accuracy without sequence information.
Feature extraction is an important process of machine learning and deep learning, as the process make algorithms function more efficiently, and also accurate. In natural language processing used in deception detection such as fake news detection, several ways of feature extraction in statistical aspect had been introduced (e.g. N-gram). In this research, it will be shown that by using deep learning algorithms and alphabet frequencies of the original text of a news without any information about the sequence of the alphabet can actually be used to classify fake news and trustworthy ones in high accuracy (85\%). As this pre-processing method makes the data notably compact but also include the feature that is needed for the classifier, it seems that alphabet frequencies contains some useful features for understanding complex context or meaning of the original text.