Document Summarization

Document summarization aims to rewrite a document into a shorter form while retaining its key content. This task is mainly divided into two paradigms: extractive and abstractive. Extractive methods generate summaries by extracting parts (usually sentences) from the original document; while abstractive methods may create new words or phrases that do not necessarily appear in the original document. Document summarization has significant application value in information retrieval, knowledge management, and other fields.