System and method for constructing named entity dictionary

PURPOSE: A system and method for constructing named entity dictionary are provided to easily build a named entity dictionary by extracting named entities from a certain type of information included in a web document such as a table or list, and using the named entities. CONSTITUTION: A web document collector (110) collects web documents. An information extractor(130) extracts the table or list type information from the web documents. A name entity extractor(140) extracts the name entities from the table or list type information. The name entity dictionary(160) stores the extracted named entities. An address extractor(120) extracts the address of the web document by analyzing the web document. The web document analyzer transmits the extracted address to the web document collector.