SYNONYM CALCULATION DEVICE, ITS METHOD AND MEDIUM WITH SYNONYM CALCULATION PROGRAM RECORDED THEREIN

摘要

PROBLEM TO BE SOLVED: To automatically prepare a synonym dictionary which reflects the degree of association of at least two sorts. SOLUTION: A word group initializing part 3 initializes a word group by the use of an interval-based association degree dictionary 1 for defining the degree of association between plural words, based on the retrieving time interval by the same user, while a word grouping part 4 merges respective word groups by the uses of the dictionary 1 and a time series association degree dictionary 2 defining the degree of accosiation between plural words, based on the time series correlation coefficient of using frequency of respective retrieving words to prepare a synonym group and of a synonym dictionary which reflects the retrieving interval and time series correlation of using frequency.