HDLTex: Hierarchical Deep Learning for Text Classification
This addresses the challenge of organizing large-scale text data for information retrieval, though it appears incremental as it builds on existing deep learning techniques.
The paper tackles the problem of document classification with increasing categories by proposing HDLTex, a hierarchical deep learning method, achieving improved performance over traditional multi-class classifiers.
The continually increasing number of documents produced each year necessitates ever improving information processing methods for searching, retrieving, and organizing text. Central to these information processing methods is document classification, which has become an important application for supervised learning. Recently the performance of these traditional classifiers has degraded as the number of documents has increased. This is because along with this growth in the number of documents has come an increase in the number of categories. This paper approaches this problem differently from current document classification methods that view the problem as multi-class classification. Instead we perform hierarchical classification using an approach we call Hierarchical Deep Learning for Text classification (HDLTex). HDLTex employs stacks of deep learning architectures to provide specialized understanding at each level of the document hierarchy.