Patent Document ID: 6064952
Application ID: 08560394

Base Claim:
1. An information abstracting method comprising the steps of: accepting an input of character string data divided into prescribed units, with each individual character represented by a character code; extracting a keyword for each of said prescribed units from said input character string data; weighting said extracted keyword by taking into account a state of occurrence, in the other prescribed units, of keywords that are identical to said extracted keyword; selecting at least one keyword from said extracted keywords on the basis of the weighted result; and outputting said selected keyword as an information abstract relating to said character string data.

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Claim 20:
20. An information abstracting method according to claim 1, 5, 2, or 6, wherein after outputting said information abstract, a keyword is designated from among the keywords constituting said output information abstract, and when data contents of a paragraph in said unit are thereafter updated and said designated keyword is found in said updated data, then the whole or part of said data containing said keyword is output or stored, or information indicating the existence of said data containing said keyword is output or stored.