Natural Language Question-Answering System and method

摘要

The present invention relates to a natural language question and answer system and method, wherein the natural language question and answer system analyzes the text of an unstructured document stored in a storage unit, and indexes to classify and index the unstructured document according to the meaning of a sentence or a paragraph ; A database for receiving and storing unstructured documents indexed by meanings transmitted from the index unit; A search unit for semantically analyzing an input query word to extract an index word, and searching a document related to the extracted index word in the database; And a search unit that analyzes the document searched by the search unit, generates a correct answer for a query, and provides a search result and a correct answer.