Event comment sentence detection device for detecting only comment text on events, programs and methods

摘要

PROBLEM TO BE SOLVED: To provide an event comment sentence detector capable of detecting only a comment sentence regarding an event which will be held in the future from many comment sentences, etc.SOLUTION: An event comment sentence detector stores: a first keyword representing preliminary announcement of an event; and a second keyword representing a date, and stores position information in association with every third keyword representing a place. The event comment sentence detector determines whether or not both of the first and second keywords are included and the third keyword is included in the comment sentence. When it is determined to be true, the event comment sentence detector stores the position information based on the third keyword, the date based on the second keyword, and one or more keywords included in the comment sentence in association with one another as the 'event'. After that, other comment sentences are retrieved by using the respective keywords of the 'event', and other comment sentences are associated with every 'event' to be stored.