Single Document Summarization Using BertSum and Pointer Generator Network

: The rapid development of textual data requires an automated text summarization system to obtain shortened versions of documents quickly and accurately. This paper investigates the performances of BertSum and Pointer Generator Network (PGN) on the IndoSum corpus containing Indonesian news articles. We compare these methods to NeuralSum, which is claimed to outperform other methods when working with the IndoSum dataset. In our experiment, BertSum with Indonesian's pre-trained model outperformed NeuralSum in extractive summarization. NeuralSum, on the other hand, tends to select the leading sentences as a summary and occasionally produces a blank summary. Meanwhile, PGN effectively prevents word repetition by using a coverage mechanism, although the summary results are sometimes out of context.