APPARATUS FOR QUESTION ANSWERING BASED ON ANSWER TRUSTWORTHINESS AND METHOD THEREOF

摘要

PURPOSE: An apparatus for answering to a question based on answer trustworthiness and a method thereof are provided to evaluate the reliability for the correct answer candidates to a user query in score and reflect the scored reliability to the correct answer priority in order to provide a user with a reliable correct answer. CONSTITUTION: A correct answer indexing unit(20) indexes the documents of which document reliability satisfies a critical value, and stores the indexed documents in a knowledge storage unit. A correct answer candidate extraction unit(40) extracts the correct answer candidate documents for the user query from the knowledge storage unit. A correct answer source reliability measurement unit(53) analyzes a non-textual feature of the correct answer candidate documents in order to measure source reliability. A correct answer extraction strategy reliability measurement unit(55) analyzes the validity of the extraction strategy of the correct answer candidate documents to measure the extraction strategy reliability.